US4471040A
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Electrophotographic disazo photosensitive member
Assignee: Canon Inc
•
Filing: 1981-09-09
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Granted: 1984-09-11
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Expires: 2001-09-09
Abstract
Abstract An electrophotographic photosensitive member have a photosensitive layer, said photosensitive layer comprising at least one dis-azo pigment of Formula (I) or Formula (II) shown below: ##STR1## wherein Z represents an oxygen atom, a sulfur atom or >N--A 2 , wherein A 2 is a hydrogen atom or a lower alkyl, A 1 a hydrogen atom, a lower alkyl or a halogen atom; Ph 1 an unsubstituted or substituted phenylene group, n an integer of 0 or 1, and B 1 a coupler residue; with proviso that when n is 0, Z is an oxygen atom and A 1 is a hydrogen atom, the case where Ph 1 represents substituted phenyl radicals except for unsubstituted or mono-substituted phenyl radicals with a halogen atom, a lower alkyl or an alkoxy group; and ##STR2## wherein Ph 2 represents an unsubstituted or substituted phenylene group and B 2 a coupler residue.
Inventors
- 👤 Kazuharu Katagiri
- 👤 Katsunori Watanabe
- 👤 Shozo Ishikawa
- 👤 Makoto Kitahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:28
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0675; G03G5/0679; G03G5/0681; G03G5/0683; G03G5/0685
Claims Analysis
Total Claims: 183
Claim 1
Independent Claim
43 words
An electrophotographic photosensitive member having a photosensitive layer comprising at least one disazo pigment represented by the following formula (B): ##STR177## wherein A 1 is a hydrogen atom, a halogen atom or a lower alkyl group and B 1 is a coupler residue.
Claim 2
Dependent Claim
43 words
An electrophotographic photosensitive member having a photosensitive layer comprising at least one disazo pigment represented by the following formula (B): ##STR177## wherein A 1 is a hydrogen atom, a halogen atom or a lower alkyl group and B 1 is a coupler residue.
Claim 3
Dependent Claim
63 words
An electrophotographic photosensitive member according to claim 1, wherein said electrophotographic photosensitive member comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (B), and a charge transport layer: ##STR178## wherein A 1 is a hydrogen atom, a halogen atom or a lower alkyl group and B 1 is a coupler residue.
Claim 4
Dependent Claim
71 words
An electrophotographic photosensitive member according to claim 2, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (B), and a charge transport layer: ##STR179## wherein A 1 is a hydrogen atom, a halogen atom or a lower alkyl group and B 1 is a coupler residue.
Claim 5
Dependent Claim
64 words
An electrophotographic photosensitive member according to claim 1, wherein said electrophotographic photosensitive member comprises at least one conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (B) and at least one charge transport material: ##STR180## wherein A 1 is a hydrogen atom, a halogen atom or a lower alkyl group and B 1 is a coupler residue.
Claim 6
Dependent Claim
102 words
An electrophotographic photosensitive member according to any of claims 1, 2, 3 and 4, wherein said dis-azo pigment is represented by the following Formula (b 1 ): ##STR181## wherein A 1 is a hydrogen atom, a lower alkyl group, or a halogen atom, X is an atomic group forming a naphthalene-, anthracene, carbazole- or dibenzofuran-ring together with the benzene ring, and Y a group of the formula ##STR182## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 7
Dependent Claim
59 words
An electrophotographic photosensitive member according to any of claims 1, 2, 3 and 4, wherein said dis-azo pigment is represented by the following Formula (b 2 ): ##STR183## wherein A 1 is a hydrogen atom, a lower alkyl group or a halogen atom, and R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 8
Dependent Claim
59 words
An electrophotographic photosensitive member according to any of claims 1, 2, 3 and 4, wherein said dis-azo pigment is represented by the following Formula (b 3 ): ##STR184## wherein A 1 is a hydrogen atom, a lower alkyl group or a halogen atom, and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 9
Dependent Claim
23 words
An electrophotographic photosensitive member according to claim 1, wherein said A 1 is a hydrogen atom, a chlorin atom or a methyl radical.
Claim 10
Dependent Claim
68 words
An electrophotographic photosensitive member according to claim 5, wherein said B 1 is any of coupler residues represented by Formulas (b 4 ), (b 5 ) and (b 6 ) shown below: ##STR185## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 11
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 2 or 3, wherein said charge transport layer is provided on the charge generation layer.
Claim 12
Dependent Claim
34 words
An electrophotographic photosensitive member according to any of claims 2, 3 and 10, wherein said charge transport layer contains at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 13
Dependent Claim
15 words
An electrophotographic photosensitive member according to claim 11, wherein said pyrazoline is 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline or 1-[6-methoxypyridyl-(2)]-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 14
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 11, wherein said nitrofluorenone is 2,4,7-trinitro-9-fluorenone.
Claim 15
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 11, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 16
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 2 and 3, wherein said charge generation layer contains a binder.
Claim 17
Dependent Claim
14 words
An electrophotographic photosensitive member according to claim 3, wherein said adhesive layer contains casein.
Claim 18
Dependent Claim
29 words
An electrophotographic photosensitive member according to claim 4, wherein said charge transport material is at least one compound selected from the group consisting of nitrofluorenones, hydrazones, oxadiazoles and pyrazolines.
Claim 19
Dependent Claim
18 words
An electrophotographic photosensitive member according to claim 4, wherein said charge transport material consists of 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole and poly-N-vinylcarbazole.
Claim 20
Dependent Claim
68 words
An electrophotographic photosensitive member having a photosensitive layer, said photosensitive layer comprising a charge generation layer containing at least one disazo pigment represented by the following Formula (C), and a charge transport layer; ##STR186## wherein B 1 represents a coupler residue and A 4 a hydroxyl or an acrylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is 2.
Claim 21
Dependent Claim
68 words
An electrophotographic photosensitive member having a photosensitive layer, said photosensitive layer comprising a charge generation layer containing at least one disazo pigment represented by the following Formula (C), and a charge transport layer; ##STR186## wherein B 1 represents a coupler residue and A 4 a hydroxyl or an acrylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is 2.
Claim 22
Dependent Claim
89 words
An electrophotographic photosensitive member according to claim 19, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (C), and a charge transport layer: ##STR187## wherein B 1 represents a coupler residue and A 4 is a hydroxyl or an acylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is an integer of 2 to 4.
Claim 23
Dependent Claim
73 words
An electrophotographic photosensitive member which comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (C) and at least one charge transport material: ##STR188## wherein B 1 represents a coupler residue and A 4 a hydroxyl or an acylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is an integer of 2 to 4.
Claim 24
Dependent Claim
73 words
An electrophotographic photosensitive member which comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (C) and at least one charge transport material: ##STR188## wherein B 1 represents a coupler residue and A 4 a hydroxyl or an acylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is an integer of 2 to 4.
Claim 25
Dependent Claim
120 words
An electrophotographic photosensitive member according to any of claims 19, 20 and 21, wherein said dis-azo pigment is represented by the following Formula (c 1 ): ##STR189## wherein A 4 is a hydroxyl or an acylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is an integer of 2 to 4, X is an atomic group forming a naphthalene-, anthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y a grouop of the formula ##STR190## (wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group).
Claim 26
Dependent Claim
76 words
An electrophotographic photosensitive member according to any of claims 19, 20 and 21, wherein said dis-azo pigment is represented by the following Formula (c 2 ): ##STR191## wherein A 4 is a hydroxyl or an acylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is an integer of 2 to 4 and R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 27
Dependent Claim
76 words
An electrophotographic photosensitive member according to any of claims 19, 20 and 21, wherein said dis-azo pigment is represented by the following Formula (c 3 ): ##STR192## wherein A 4 is a hydroxyl or an acylamino group when m is an integer of 1 to 4, or also an alkoxy group when m is an integer of 2 to 4 and R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 28
Dependent Claim
72 words
An electrophotographic photosensitive member according to claim 22, wherein there is contained at least one dis-azo pigment wherein said B 1 is a coupler residue represented by the Formula (c 4 ) or (c 5 ): ##STR193## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 29
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 19 or 20, wherein said charge transport layer is provided on the charge generation layer.
Claim 30
Dependent Claim
33 words
An electrophotographic photosensitive member according to any of claims 19 and 20, wherein said charge transport layer contains at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 31
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 27, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N,N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 32
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 27, wherein said pyrazoline is 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 33
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 27, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 34
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 27, wherein said nitrofluorenones are at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone, 2,4,5,7-tetranitrofluorenone and 2,4,7-trinitro-9-dicyanomethylenefluorenone.
Claim 35
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 19 and 20, wherein said charge generation layer contains a binder.
Claim 36
Dependent Claim
16 words
An electrophotographic photosensitive member according to claim 32, wherein said binder is polyvinyl butyral or polyesters.
Claim 37
Dependent Claim
14 words
An electrophotographic photosensitive member according to claim 20, wherein said adhesive layer contains casein.
Claim 38
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 21, wherein said charge transport material is at least one compound selected from the group consisting of hydrazones, pyrazolines and nitrofluorenones.
Claim 39
Dependent Claim
18 words
An electrophotographic photosensitive member according to claim 21, wherein said charge transport material consists of hydrazones and poly-N-vinylcarbazole.
Claim 40
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 35 or 36, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N,N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 41
Dependent Claim
75 words
An electrophotographic photosensitive member having a photosensitive layer, said photosensitive layer comprising a charge generation layer containing at least one disazo pigment represented by the following Formula (D), and a charge transport layer: ##STR194## wherein B 1 represents a coupler residue, A 1 is methyl or chlorine, A 5 a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and l an integer of 1 to 4.
Claim 42
Dependent Claim
75 words
An electrophotographic photosensitive member having a photosensitive layer, said photosensitive layer comprising a charge generation layer containing at least one disazo pigment represented by the following Formula (D), and a charge transport layer: ##STR194## wherein B 1 represents a coupler residue, A 1 is methyl or chlorine, A 5 a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and l an integer of 1 to 4.
Claim 43
Dependent Claim
97 words
An electrophotographic photosensitive member according to claim 38, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (D), and a charge transport layer: ##STR195## wherein B 1 represents a coupler residue, A 1 is a lower alkyl group or a halogen atom, A 5 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and l is an integer of 1 to 4.
Claim 44
Dependent Claim
82 words
An electrophotographic photosensitive member which comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (D) and at least one charge transport material: ##STR196## wherein B 1 represents a coupler residue, A 1 is a lower alkyl group or a halogen atom, A 5 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and l is an integer of 1 to 4.
Claim 45
Dependent Claim
82 words
An electrophotographic photosensitive member which comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (D) and at least one charge transport material: ##STR196## wherein B 1 represents a coupler residue, A 1 is a lower alkyl group or a halogen atom, A 5 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and l is an integer of 1 to 4.
Claim 46
Dependent Claim
128 words
An electrophotographic photosensitive member according to any of claims 38, 39 and 40, wherein said dis-azo pigment is represented by the following Formula (d 1 ): ##STR197## wherein A 1 is a lower alkyl group, or a halogen atom, A 5 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group; l is an integer of 1 to 4, X is an atomic group forming a naphthaleneanthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula ##STR198## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 47
Dependent Claim
84 words
An electrophotographic photosensitive member according to any of claims 38, 39 and 40, wherein said dis-azo pigment is represented by the following Formula (d 2 ): ##STR199## wherein A 1 is a lower alkyl group or a halogen atom, A 5 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, l is an integer of 1 to 4, and R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 48
Dependent Claim
84 words
An electrophotographic photosensitive member according to any of claims 38, 39 and 40, wherein said dis-azo pigment is represented by the following Formula (d 3 ): ##STR200## wherein A 1 is a lower alkyl group or a halogen atom, A 5 is a hydrogen atom a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, l is an integer of 1 to 4, and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 49
Dependent Claim
36 words
An electrophotographic photosensitive member according to any of claims 38 and 40, wherein said electrophotographic photosensitive member contains at least one dis-azo pigment in which said A 1 is a chlorine atom or a methyl radical.
Claim 50
Dependent Claim
76 words
An electrophotographic photosensitive member according to claim 41, wherein said electrophotographic photosensitive member contains at least one dis-azo pigment in which said B 1 is a coupler residue represented by Formula (d 4 ) or (d 5 ) shown below: ##STR201## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 51
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 38 or 39, wherein said charge transport layer is provided on the charge generation layer.
Claim 52
Dependent Claim
33 words
An electrophotographic photosensitive member according to any of claims 38 and 39, wherein said charge transport layer contains at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 53
Dependent Claim
25 words
An electrophotographic photosensitive member according to claim 47, wherein said hydrazones are at least one compound selected from the group consisting of N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 54
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 47, wherein said pyrazoline is 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 55
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 47, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 56
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 47, wherein said nitrofluorenones are at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone, 2,4,5,7-tetranitrofluorenone and 2,4,7-trinitro-9-dicyanomethylenefluorenone.
Claim 57
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 38 and 39, wherein said charge generation layer contains a binder.
Claim 58
Dependent Claim
16 words
An electrophotographic photosensitive member according to claim 52, wherein said binder is polyvinyl butyral or polyesters.
Claim 59
Dependent Claim
14 words
An electrophotographic photosensitive member according to claim 39, wherein said adhesive layer contains casein.
Claim 60
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 40, wherein said charge transport material is at least one compound selected from the group consisting of hydrazones, pyrazolines and nitrofluorenones.
Claim 61
Dependent Claim
18 words
An electrophotographic photosensitive member according to claim 40, wherein said charge transport material is hydrazones or a poly-N-vinylcarbazole.
Claim 62
Dependent Claim
27 words
An electrophotographic photosensitive member according to claim 55 or 56, wherein said hydrazones are at least one compound selected from the group consisting of N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 63
Dependent Claim
70 words
An electrophotographic photosensitive member which comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (E), and a charge transport layer: ##STR202## wherein B 1 represents a coupler residue, A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and p is an integer of 1 to 4.
Claim 64
Dependent Claim
70 words
An electrophotographic photosensitive member which comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (E), and a charge transport layer: ##STR202## wherein B 1 represents a coupler residue, A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and p is an integer of 1 to 4.
Claim 65
Dependent Claim
86 words
An electrophotographic photosensitive member according to claim 58, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (E) and; a charge transport layer: ##STR203## wherein B 1 represents a coupler residue, A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and p is an integer of 1 to 4.
Claim 66
Dependent Claim
71 words
An electrophotographic photosensitive member which comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (E) and at least one charge transport material: ##STR204## wherein B 1 represents a coupler residue, A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and p is an integer of 1 to 4.
Claim 67
Dependent Claim
71 words
An electrophotographic photosensitive member which comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (E) and at least one charge transport material: ##STR204## wherein B 1 represents a coupler residue, A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and p is an integer of 1 to 4.
Claim 68
Dependent Claim
117 words
An electrophotographic photosensitive member according to any of claims 58 and 60, wherein said dis-azo pigment is represented by the following Formula (e 1 ): ##STR205## wherein A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and p is an integer of 1 to 4, X is an atomic group forming a naphthaleneanthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula ##STR206## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group, and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 69
Dependent Claim
73 words
An electrophotographic photosensitive member according to any of claims 58, 59 and 60, wherein said dis-azo pigment is represented by the following Formula (e 2 ): ##STR207## wherein A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, p is an integer of 1 to 4, and R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 70
Dependent Claim
73 words
An electrophotographic photosensitive member according to any of claims 58, 59 and 60, wherein said dis-azo pigment is represented by the following Formula (e 3 ): ##STR208## wherein A 6 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, p is an integer of 1 to 4, and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 71
Dependent Claim
64 words
An electrophotographic photosensitive member according to claim 61, wherein said B 1 is a coupler residue represented by Formula (e 4 ) or (e 5 ) shown below: ##STR209## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 72
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 58 or 59, wherein said charge transport layer is provided on the charge generation layer.
Claim 73
Dependent Claim
33 words
An electrophotographic photosensitive member according to any of claims 58 and 59, wherein said charge transport layer contains at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 74
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 66, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N,N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 75
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 66, wherein said pyrazoline is 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 76
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 66, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 77
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 66, wherein said nitrofluorenones are at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone, 2,4,5,7-tetranitrofluorenone and 2,4,7-trinitro-9-dicyanomethylenefluorenone.
Claim 78
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 58 and 65, wherein said charge generation layer contains a binder.
Claim 79
Dependent Claim
16 words
An electrophotographic photosensitive member according to claim 71, wherein said binder is polyvinyl butyral or polyesters.
Claim 80
Dependent Claim
14 words
An electrophotographic photosensitive member according to claim 59, wherein said adhesive layer contains casein.
Claim 81
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 60, wherein said charge transport material is at least one compound selected from the group consisting of hydrazones, pyrazolines and nitrofluorenones.
Claim 82
Dependent Claim
19 words
An electrophotographic photosensitive member according to claim 60, wherein said charge transport material is a hydrazones or a poly-N-vinylcarbazole.
Claim 83
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 74 or 75, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N,N-diphenylhydrazine, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 84
Dependent Claim
27 words
An electrophotographic photosensitive member according to claim 1, wherein said dis-azo pigment is represented by the following Formula (F): ##STR210## wherein B 1 represents a coupler residue.
Claim 85
Dependent Claim
48 words
An electrophotographic photosensitive member according to claim 77, wherein said electrophotographic photosensitive member comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (F), and a charge transport layer: ##STR211## wherein B 1 represents a coupler residue.
Claim 86
Dependent Claim
56 words
An electrophotographic photosensitive member according to claim 78, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (F), and a charge transport layer: ##STR212## wherein B 1 represents a coupler residue.
Claim 87
Dependent Claim
49 words
An electrophotographic photosensitive member according to claim 77, wherein said electrophotographic photosensitive member comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (F) and at least one charge transport material: ##STR213## wherein B 1 represents a coupler residue.
Claim 88
Dependent Claim
87 words
An electrophotographic photosensitive member according to any of claims 77, 78, 79 and 80, wherein said dis-azo pigment is represented by the following Formula (f 1 ): ##STR214## wherein X represents an atomic group forming a naphthaleneanthracene-, carbazole- or dibenzofuran-ring together with the benzene ring and Y a group of the formula ##STR215## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 89
Dependent Claim
44 words
An electrophotographic photosensitive member according to any of claims 77, 78, 79 and 80, wherein said dis-azo pigment is represented by the following Formula (f 2 ): ##STR216## wherein R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 90
Dependent Claim
44 words
An electrophotographic photosensitive member according to any of claims 77, 78, 79 and 80, wherein said dis-azo pigment is represented by the following Formula (f 3 ): ##STR217## wherein R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 91
Dependent Claim
64 words
An electrophotographic photosensitive member according to claim 81, wherein said B 1 is a coupler residue represented by Formula (f 4 ) or (f 6 ) shown below: ##STR218## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 92
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 78 or 79, wherein said charge transport layer is provided on the charge generation layer.
Claim 93
Dependent Claim
33 words
An electrophotographic photosensitive member according to any of claims 78 and 79, wherein said charge transport layer contains at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 94
Dependent Claim
25 words
An electrophotographic photosensitive member according to claim 86, wherein said hydrazones are at least one compound selected from the group consisting of N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 95
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 86, wherein said pyrazoline is 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 96
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 86, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 97
Dependent Claim
25 words
An electrophotographic photosensitive member according to claim 86, wherein said nitrofluorenones are at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone and 2,4,7-trinitro-dicyanomethylenefluorenone.
Claim 98
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 78 and 79, wherein said charge generation layer contains a binder.
Claim 99
Dependent Claim
16 words
An electrophotographic photosensitive member according to claim 91, wherein said binder is polyvinyl butyral or polyesters.
Claim 100
Dependent Claim
14 words
An electrophotographic photosensitive member according to claim 79, wherein said adhesive layer contains casein.
Claim 101
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 80, wherein said charge transport material is at least one compound selected from the group consisting of hydrazones, pyrazolines and nitrofluorenones.
Claim 102
Dependent Claim
19 words
An electrophotographic photosensitive member according to claim 80, wherein said charge transport material is a hydrazones or a poly-N-vinylcarbazole.
Claim 103
Dependent Claim
27 words
An electrophotographic photosensitive member according to claim 94 or 95, wherein said hydrazones are at least one compound selected from the group consisting of N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 104
Dependent Claim
84 words
An electrophotographic photosensitive member which comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (G), and a charge transport layer: ##STR219## wherein B 1 represents a coupler residue, A 1 is a lower alkyl group, A 2 is a lower alkyl group, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and q is an integer of 1 to 4.
Claim 105
Dependent Claim
84 words
An electrophotographic photosensitive member which comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (G), and a charge transport layer: ##STR219## wherein B 1 represents a coupler residue, A 1 is a lower alkyl group, A 2 is a lower alkyl group, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and q is an integer of 1 to 4.
Claim 106
Dependent Claim
100 words
An electrophotographic photosensitive member according to claim 97, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (G), and a charge transport layer: ##STR220## wherein B 1 represents a coupler residue, A 1 is a lower alkyl group, A 2 is a lower alkyl group, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and q is an integer of 1 to 4.
Claim 107
Dependent Claim
93 words
An electrophotographic photosensitive member according to claim 126, wherein said electrophotographic photosensitive member comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (G) and at least one charge transport material: ##STR221## wherein B 1 represents a coupler residue, A 1 is a lower alkyl group, A 2 is a lower alkyl group, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and q is an integer of 1 to 4.
Claim 108
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 97 or 98, wherein said charge transport layer is provided on the charge generation layer.
Claim 109
Dependent Claim
34 words
An electrophotographic photosensitive member according to any of claims 97 and 98, wherein said charge transport layer contains at least one compound selected from the group consisting of oxidiazoles, oxazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 110
Dependent Claim
25 words
An electrophotographic photosensitive member according to claim 101, wherein said hydrazones are at least one compound selected from the group consisting of, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 111
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 101, wherein said oxazole is 2-(p-diethylaminophenyl)-4-dimethylamino-5-(2-chlorophenyl)oxazole.
Claim 112
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 101, wherein said pyrazoline is 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 113
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 101, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 114
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 101, wherein said nitrofluorenone is at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone, 2,4,5,7-tetranitrofluorenone and 2,4,7-trinitro-9-dicyanomethylenefluorenone.
Claim 115
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 97 and 98, wherein said charge generation layer contains a binder.
Claim 116
Dependent Claim
16 words
An electrophotographic photosensitive member according to claim 107, wherein said binder is polyvinyl butyral or polyesters.
Claim 117
Dependent Claim
23 words
An electrophotographic photosensitive member according to claim 98, wherein said adhesive layer contains a compound selected from casein, polyvinyl alcohol or hydroxypropyl cellulose.
Claim 118
Dependent Claim
30 words
An electrophotographic photosensitive member according to claim 99, wherein said charge transport material is at least one compound selected from the group consisting of oxazoles, oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 119
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 110, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 120
Dependent Claim
42 words
An electrophotographic photosensitive member having a photosensitive layer comprising a dis-azo pigment represented by the following Formula (H): ##STR222## wherein B 1 represents a coupler residue and A 1 and A 2 each is a hydrogen atom or a lower alkyl group.
Claim 121
Dependent Claim
42 words
An electrophotographic photosensitive member having a photosensitive layer comprising a dis-azo pigment represented by the following Formula (H): ##STR222## wherein B 1 represents a coupler residue and A 1 and A 2 each is a hydrogen atom or a lower alkyl group.
Claim 122
Dependent Claim
64 words
An electrophotographic photosensitive member according to claim 112, wherein said electrophotographic photosensitive member comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following formula (H), and a charge transport layer: ##STR223## wherein B 1 represents a coupler residue and A 1 and A 2 each is a hydrogen atom or a lower alkyl group.
Claim 123
Dependent Claim
72 words
An electrophotographic photosensitive member according to claim 113, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (H), and a charge transport layer: ##STR224## wherein B 1 represents a coupler residue and A 1 and A 2 each is a hydrogen atom or a lower alkyl group.
Claim 124
Dependent Claim
63 words
An electrophotographic photosensitive member according to claim 112, wherein said electrophotographic photosensitive member comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (H) and at least one charge transport material: ##STR225## wherein B 1 represents a coupler residue A 1 and A 2 each is a hydrogen atom or a lower alkyl.
Claim 125
Dependent Claim
104 words
An electrophotographic photosensitive member according to any of claims 112, 113, 114 and 115, wherein said dis-azo pigment is represented by the following Formula (h 1 ): ##STR226## wherein A 1 and A 2 each is a hydrogen atom or a lower alkyl group, X is an atomic group forming a naphthaleneanthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula: ##STR227## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 126
Dependent Claim
60 words
An electrophotographic photosensitive member according to any of claims 112, 113, 114 and 115, wherein said dis-azo pigment is represented by the following Formula (h 2 ): ##STR228## wherein A 1 and A 2 each is a hydrogen atom or a lower alkyl group and R 3 is an unsubstituted or substituted alkyl or an unsubstituted or substituted phenyl group.
Claim 127
Dependent Claim
60 words
An electrophotographic photosensitive member according to any of claims 112, 113, 114 and 115, wherein said dis-azo pigment is represented by the following Formula (h 3 ): ##STR229## wherein A 1 and A 2 each is a hydrogen atom or a lower alkyl group and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 128
Dependent Claim
31 words
An electrophotographic photosensitive member according to claim 112, wherein said electrophotographic photosensitive member contains at least one dis-azo compound wherein said A 1 is a hydrogen atom or a methyl radical.
Claim 129
Dependent Claim
80 words
An electrophotographic photosensitive member according to claim 116, wherein said electrophotographic photosensitive member comprises at least one dis-azo compound wherein said B 1 is a coupler residue selected from any of Formulas (h 4 ), (h 5 ) and (h 6 ) shown below: ##STR230## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group.
Claim 130
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 113 or 114, wherein said charge transport layer is provided on the charge generation layer.
Claim 131
Dependent Claim
35 words
An electrophotographic photosensitive member according to any of claims 113 and 114, wherein said charge transport layer contains at least one compound selected from the group consisting of diarylalkanes, oxazoles, oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 132
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 122, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N,N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 133
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 122, wherein said oxazole is 2-(p-diethylaminophenyl)-4-(p-diethylaminophenyl)-5-(o-chlorophenyl)oxazole.
Claim 134
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 122, wherein said pyrazoline is 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 135
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 122, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 136
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 122, wherein said nitrofluorenones are at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone, 2,4,5,7-tetranitrofluorenone, and 2,4,7-trinitro-9-dicyanomethylenefluorenone.
Claim 137
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 122, wherein said diarylalkane is 1,1-bis(p-diethylaminophenyl)propane.
Claim 138
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 113 and 114, wherein said charge generation layer contains a binder.
Claim 139
Dependent Claim
16 words
An electrophotographic photosensitive member according to claim 129, wherein said binder is polyvinyl butyral or polyesters.
Claim 140
Dependent Claim
23 words
An electrophotographic photosensitive member according to claim 114, wherein said adhesive layer contains a compound selected from casein, polyvinyl alcohol or hydroxypropyl cellulose.
Claim 141
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 115, wherein said charge transport material is at least one compound selected from the group consisting of hydrazones, pyrazolines and nitrofluorenones.
Claim 142
Dependent Claim
18 words
An electrophotographic photosensitive member according to claim 115, wherein said charge transport material is oxazoles or a poly-N-vinylcarbazole.
Claim 143
Dependent Claim
15 words
An electrophotographic photosensitive member according to claim 132 or 133, wherein said oxazole is 2-(p-diethylaminophenyl)-4-(p-dimethylaminophenyl)-5-(o-chlorophenyl)oxazole.
Claim 144
Dependent Claim
47 words
An electrophotographic photosensitive member having a photosensitive layer comprising a dis-azo pigment represented by the following formula (J): ##STR231## wherein B 2 represents a coupler residue and A 8 is a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, an acylamino or a nitro group.
Claim 145
Dependent Claim
47 words
An electrophotographic photosensitive member having a photosensitive layer comprising a dis-azo pigment represented by the following formula (J): ##STR231## wherein B 2 represents a coupler residue and A 8 is a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, an acylamino or a nitro group.
Claim 146
Dependent Claim
69 words
An electrophotographic photosensitive member according to claim 135, wherein said electrophotographic photosensitive member comprises at least a conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (J), and a charge transport layer: ##STR232## wherein B 2 represents a coupler residue and A 8 is a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, an acylamino or a nitro group.
Claim 147
Dependent Claim
77 words
An electrophotographic photosensitive member according to claim 136, wherein said electrophotographic photosensitive member comprises at least a conductive layer, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one dis-azo pigment represented by the following Formula (J), and a charge transport layer: ##STR233## wherein B 2 represents a coupler residue and A 8 is a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, an acylamino or a nitro group.
Claim 148
Dependent Claim
69 words
An electrophotographic photosensitive member according to claim 135, wherein said electrophotographic photosensitive member comprises at least a conductive layer and a layer, containing at least one dis-azo pigment represented by the following Formula (J) and at least one charge transport material: ##STR234## wherein B 2 represents a coupler residue and A 8 is a hydrogen atom, halogen atom, a lower alkyl, an alkoxy, an acylamino or a nitro group.
Claim 149
Dependent Claim
113 words
An electrophotographic photosensitive member according to any of claims 135, 136, 137 and 138, wherein said dis-azo pigment is represented by the following Formula (j 1 ): ##STR235## wherein A 8 is a hydrogen atom a halogen atom a lower alkyl, an alkoxy, an acylamino or an nitro group, X is an atomic group forming a naphthalene-, anthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula ##STR236## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, an unsubstituted or substituted aryl, or a di-substituted amino group.
Claim 150
Dependent Claim
64 words
An electrophotographic photosensitive member according to any of claims 135, 136, 137 and 138, wherein said dis-azo pigment is represented by the following Formula (j 2 ): ##STR237## wherein A 8 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, a nitro or an acylamino group and R 3 an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 151
Dependent Claim
64 words
An electrophotographic photosensitive member according to any of claims 135, 136, 137 and 138, wherein said dis-azo pigment is represented by the following Formula (j 3 ): ##STR238## wherein A 8 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, an acylamino or a nitro group and R 4 an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group.
Claim 152
Dependent Claim
34 words
An electrophotographic photosensitive member according to claim 135, wherein there is contained at least one dis-azo pigment wherein said A 8 is a hydrogen atom, a chlorine atom, a methyl or an acetylamino group.
Claim 153
Dependent Claim
67 words
An electrophotographic photosensitive member according to claim 135, wherein said B 2 is a coupler residue represented by Formula (j 4 ) or (j 5 ) shown below: ##STR239## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, an unsubstituted or substituted aryl, or a di-substituted amino group.
Claim 154
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 136 or 137, wherein said charge transport layer is provided on the charge generation layer.
Claim 155
Dependent Claim
33 words
An electrophotographic photosensitive member according to any of claims 136 and 137, wherein said charge transport layer contains at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 156
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 145, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N,N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 157
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 145, wherein said pyrazolines are at least one compound selected from the group consisting of 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline, 1-[pyridyl-(2)]-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline and 1-[quinolyl-(2)]-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 158
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 145, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 159
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 145, wherein said nitrofluorenones are at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone, 2,4,5,7-tetranitrofluorenone and 2,4,7-trinitro-9-dicyanomethylenefluorenone.
Claim 160
Dependent Claim
20 words
An electrophotographic photosensitive member according to any of claims 136 and 137, wherein said charge generation layer contains a binder.
Claim 161
Dependent Claim
46 words
An electrophotographic photosensitive member according to claim 150, wherein said binder is at least one resin selected from the group consisting of polyvinyl butyral, polyvinyl acetate, polyesters, polycarbonates, phenoxy resins, acrylic resins, polyacrylamide, polyamides, polyvinyl pyridine, cellulose resins, urethane resins, epoxy resins, casein and polyvinyl alcohol.
Claim 162
Dependent Claim
22 words
An electrophotographic photosensitive member according to claim 137, wherein said adhesive layer contains casein, polyvinyl alcohol, water-soluble ethyleneacrylic acid copolymer or nitrocellulose.
Claim 163
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 138, wherein said charge transport material is at least one compound selected form the group consisting of hydrazones, pyrazolines and nitrofluorenones.
Claim 164
Dependent Claim
18 words
An electrophotographic photosensitive member according to claim 138, wherein said charge transport material consists of hydrazones and poly-N-vinylcarbazole.
Claim 165
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 153 or 154, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N,N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N,N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 166
Dependent Claim
40 words
An electrophotographic photosensitive member having a photosensitive layer, said photosensitive layer comprising at least one disazo pigment of Formula (II) shown below: ##STR240## wherein Ph 2 is an unsubstituted or substituted phenylene group and B 2 is a coupler residue.
Claim 167
Dependent Claim
40 words
An electrophotographic photosensitive member having a photosensitive layer, said photosensitive layer comprising at least one disazo pigment of Formula (II) shown below: ##STR240## wherein Ph 2 is an unsubstituted or substituted phenylene group and B 2 is a coupler residue.
Claim 168
Dependent Claim
430 words
An electrophotographic photosensitive member comprising at least (i) a conductive layer or support, (ii) a charge generation layer containing at least one disazo pigment selected from the group consisting of Formula (a 1 ), (a 2 ), (a 3 ), (g 1 ), (g 2 ), or (g 3 ) shown below: ##STR241## wherein A 3 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, a nitro or an acylamino group, X is an atom group forming a naphthalene-, anthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula ##STR242## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, an unsubstituted or substituted aryl or, a disubstituted amino group; ##STR243## wherein A 3 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, a nitrogen or an acylamino group and R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group; ##STR244## wherein A 3 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, a nitro or an acylamino group, and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group; ##STR245## wherein A 1 represents a lower alkyl group, A 2 is a hydrogen atom, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, g is an integer of 1 4, X is an atomic group forming a naphthalene- anthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula ##STR246## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group; ##STR247## wherein A 1 represents a lower alkyl group, A 2 is a hydrogen atom, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and g is an integer of 1 to 4; and ##STR248## wherein A 1 represents a lower alkyl group, A 2 is a hydrogen atoms, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, q is an integer of 1 to 4, and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group, and (iii) a charge transport layer.
Claim 169
Dependent Claim
430 words
An electrophotographic photosensitive member comprising at least (i) a conductive layer or support, (ii) a charge generation layer containing at least one disazo pigment selected from the group consisting of Formula (a 1 ), (a 2 ), (a 3 ), (g 1 ), (g 2 ), or (g 3 ) shown below: ##STR241## wherein A 3 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, a nitro or an acylamino group, X is an atom group forming a naphthalene-, anthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula ##STR242## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, an unsubstituted or substituted aryl or, a disubstituted amino group; ##STR243## wherein A 3 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, a nitrogen or an acylamino group and R 3 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group; ##STR244## wherein A 3 represents a hydrogen atom, a halogen atom, a lower alkyl, an alkoxy, a nitro or an acylamino group, and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group; ##STR245## wherein A 1 represents a lower alkyl group, A 2 is a hydrogen atom, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, g is an integer of 1 4, X is an atomic group forming a naphthalene- anthracene-, carbazole- or dibenzofuran-ring together with the benzene ring, and Y is a group of the formula ##STR246## wherein R 1 is a hydrogen atom, an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group and R 2 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted aryl group; ##STR247## wherein A 1 represents a lower alkyl group, A 2 is a hydrogen atom, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, and g is an integer of 1 to 4; and ##STR248## wherein A 1 represents a lower alkyl group, A 2 is a hydrogen atoms, A 7 is a hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an acylamino or a hydroxyl group, q is an integer of 1 to 4, and R 4 is an unsubstituted or substituted alkyl, or an unsubstituted or substituted phenyl group, and (iii) a charge transport layer.
Claim 170
Dependent Claim
64 words
An electrophotographic photosensitive member according to claim 157, wherein said electrophotographic photosensitive member comprises a conductive layer or support, an adhesive layer provided on said conductive layer, a charge generation layer containing at least one disazo pigment of said Formula (a 1 ), (a 2 ), (a 3 ), (g 1 ), (g 2 ) or (g 3 ) and a charge transport layer.
Claim 171
Dependent Claim
59 words
An electrophotographic photosensitive member according to claim 157 wherein said electrophotographic photosensitive member comprises at least a conductive layer or support and a layer, containing at least one disazo pigment of said Formula (a 1 ), (a 2 ), (a 3 ), (g 1 ), (g 2 ) or (g 3 ) and at least one charge transport material.
Claim 172
Dependent Claim
20 words
An electrophotographic photosensitive member according to claim 157, wherein said charge transport layer is provided on the charge generation layer.
Claim 173
Dependent Claim
29 words
An electrophotographic photosensitive member according to claim 157, wherein said charge transport layer contains at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 174
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 161, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N, N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N, N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
Claim 175
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 161, wherein said pyrazolines are at least one compound selected from the group consisting of 1-phenyl-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline, 1-[pyridyl-(2)]-3-(p-diethylaminostyryl)5-(p-diethylaminophenyl)pyrazoline and 1-[quinolyl-(2)]-3-(p-diethylaminostyryl)-5-(p-diethylaminophenyl)pyrazoline.
Claim 176
Dependent Claim
26 words
An electrophotographic photosensitive member according to claim 161, wherein said nitrofluorenones are at least one compound selected from the group consisting of 2,4,7-trinitro-9-fluorenone, 2,4,5,7-tetranitrofluorenone and 2,4,7-trinitro-9-dicyanomethylenefluorenone.
Claim 177
Dependent Claim
13 words
An electrophotographic photosensitive member according to claim 161, wherein said oxadiazole is 2,5-bis(p-diethylaminophenyl)-1,3,4-oxadiazole.
Claim 178
Dependent Claim
16 words
An electrophotographic photosensitive member according to claim 157, wherein said charge generation layer contains a binder.
Claim 179
Dependent Claim
46 words
An electrophotographic photosensitive member according to claim 166, wherein said binder is at least one resin selected from the group consisting of polyvinyl butyral, polyvinyl acetate, polyesters, polycarbonates, phenoxy resins, acrylic resins, polyacrylamide, polyamides, polyvinyl pyridine, cellulose resins, urethane resins, epoxy resins, casein and polyvinyl alcohol.
Claim 180
Dependent Claim
32 words
An electrophotographic photosensitive member according to claim 158, wherein said adhesive layer contains at least one resin selected from the group consisting of casein, polyvinyl alcohol, water-soluble ethylene-acrylic acid copolymer and nitrocellulose.
Claim 181
Dependent Claim
29 words
An electrophotographic photosensitive member according to claim 158, wherein said charge transport material is at least one compound selected from the group consisting of oxadiazoles, hydrazones, pyrazolines and nitrofluorenones.
Claim 182
Dependent Claim
18 words
An electrophotographic photosensitive member according to claim 159, wherein said charge transport material consists of hydrazones and poly-N-vinylcarbazole.
Claim 183
Dependent Claim
28 words
An electrophotographic photosensitive member according to claim 169, wherein said hydrazones are at least one compound selected from the group consisting of p-diethylaminobenzaldehyde-N, N-diphenylhydrazone, N-methyl-N-phenylhydrazino-3-methylidene-9-ethylcarbazole and N, N-diphenylhydrazino-3-methylidene-9-ethylcarbazole.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |