US4910110A
Expired / Lapsed
US
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Photoconductor including hydrazone compound in a photoconductive layer
Assignee: Fuji Electric Co Ltd
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Filing: 1988-12-20
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Granted: 1990-03-20
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Expires: 2008-12-20
Abstract
Abstract A photoconductor for electrophotography comprising a novel hydrazone compound or derivative as a charge transporting substance. A hydrazone compound is represented by the following general formula: <IMAGE> wherein, each of R1, R2, R3, R4, R5 and R6 stands for a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an allyl group, or an aryl group which may have a substituent(s) or an amino group which may have a substitutent(s); and n stands for an integer of 0, 1 or 2.
Inventors
- 👤 Masami Kuroda
- 👤 Youichi Nakamura
- 👤 Noboru Furusho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:13
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0666; G03G5/0668; C; C09; C09B; C09B23/00; C09B23/16; C09B23/162; C09B23/164; C09B55/00; C09B55/002; C09B55/003; G03G5/0622; G03G5/0644; G03G5/0661
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A photoconductor for electrophotography comprising: a substrate; and a photoconductive layer formed on said substrate, said photoconductor layer including a charge generating substance and at least one hydrazone compound represented by the following general formula (I) as a charge transporting substance: ##STR12## wherein each of R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 stands for a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an allyl group, or an aryl or an amino group, both of which may have at least one substituent; and n stands for an integer of 0, 1 or 2.
Claim 2
Dependent Claim
113 words
A photoconductor for electrophotography comprising: a substrate; and a photoconductive layer formed on said substrate, said photoconductor layer including a charge generating substance and at least one hydrazone compound represented by the following general formula (I) as a charge transporting substance: ##STR12## wherein each of R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 stands for a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a hydroxy group, a nitro group, an allyl group, or an aryl or an amino group, both of which may have at least one substituent; and n stands for an integer of 0, 1 or 2.
Claim 3
Dependent Claim
41 words
A photoconductor as claimed in claim 1, wherein said photoconductive layer comprises a layer including a dispersion of said charge generating substance and a charge transport substance selected from hydrazone compounds represented by the general formulae (I) in a binder resin.
Claim 4
Dependent Claim
39 words
A photoconductor as claimed in claim 1, wherein said photoconductive layer comprises a laminate of a charge transporting layer including a charge transporting substance selected from hydrazone compounds represented by the general formulae (I) and a charge generating layer.
Claim 5
Dependent Claim
121 words
A photoconductor for electrophotography comprising: a substrate; and a photoconductive layer formed on said substrate, said photoconductive layer including a charge generating substance and a least one hydrazone compound represented by the following general formula (II) as a charge transporting substance: ##STR13## wherein each of R 7 , R 8 , R 9 , R 10 , and R 11 stands for a hydrogen atom, a hydroxy group, an alkyl group, an alkoxy group, a hydroxy group, an acyl group, a nitro group, or an aryl group or an amino group, both of which may have at least one substituent, and m stands for an integer 2, 3, 4 or 5; n stands for an integer of 0, 1 or 2.
Claim 6
Dependent Claim
121 words
A photoconductor for electrophotography comprising: a substrate; and a photoconductive layer formed on said substrate, said photoconductive layer including a charge generating substance and a least one hydrazone compound represented by the following general formula (II) as a charge transporting substance: ##STR13## wherein each of R 7 , R 8 , R 9 , R 10 , and R 11 stands for a hydrogen atom, a hydroxy group, an alkyl group, an alkoxy group, a hydroxy group, an acyl group, a nitro group, or an aryl group or an amino group, both of which may have at least one substituent, and m stands for an integer 2, 3, 4 or 5; n stands for an integer of 0, 1 or 2.
Claim 7
Dependent Claim
41 words
A photoconductor as claimed in claim 4, wherein said photoconductive layer comprises a layer including a dispersion of said charge generating substance and a charge transporting substance selected from hydrazone compounds represented by the general formulae (II) in a binder resin.
Claim 8
Dependent Claim
44 words
A photoconductor as claimed on claim 4, wherein said photoconductive layer comprises a laminate of a charge transporting layer including a charge transporting substance selected from hydrazone compounds represented by the general formulae (II) and a charge generating layer including said charge generating substance.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
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