Patent US4705733A successfully refreshed from Google Patents.
US4705733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Member having light receiving layer and substrate with overlapping subprojections
Assignee: Canon Inc
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Filing: 1985-04-22
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Granted: 1987-11-10
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Expires: 2005-04-22
Abstract
Abstract A substrate for light-receiving members has a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other.
Inventors
- 👤 Keishi Saitoh
- 👤 Masahiro Kanai
- 👤 Tetsuo Sueda
- 👤 Teruo Misumi
- 👤 Yoshio Tsuezuki
- 👤 Kyosuke Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:51
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221; G03G5/043; G03G5/0436; G03G5/08235; G03G5/10; G03G5/102
Claims Analysis
Total Claims: 69
Claim 1
Independent Claim
46 words
A substrate for light-receiving members, having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other.
Claim 2
Dependent Claim
46 words
A substrate for light-receiving members, having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other.
Claim 3
Dependent Claim
63 words
A light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer at least a part of the layer region of which has photosensitivity.
Claim 4
Dependent Claim
63 words
A light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer at least a part of the layer region of which has photosensitivity.
Claim 5
Dependent Claim
70 words
A light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer comprising an amorphous material containing silicon atoms at least a part of the layer region of which has photosensitivity.
Claim 6
Dependent Claim
70 words
A light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer comprising an amorphous material containing silicon atoms at least a part of the layer region of which has photosensitivity.
Claim 7
Dependent Claim
67 words
An electrophotographic system comprising a light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer at least a part of the layer region of which has photosensitivity.
Claim 8
Dependent Claim
67 words
An electrophotographic system comprising a light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer at least a part of the layer region of which has photosensitivity.
Claim 9
Dependent Claim
74 words
An electrophotographic system comprising a light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer comprising an amorphous material containing silicon atoms at least a part of the layer region of which has photosensitivity.
Claim 10
Dependent Claim
74 words
An electrophotographic system comprising a light-receiving member comprising a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer comprising an amorphous material containing silicon atoms at least a part of the layer region of which has photosensitivity.
Claim 11
Dependent Claim
14 words
The invention according to claim 2 or 4, wherein said layer region has photoconductivity.
Claim 12
Dependent Claim
19 words
The invention according to claim 2 or 4, wherein said layer region comprises an amorphous material containing silicon atoms.
Claim 13
Dependent Claim
17 words
The invention according to claim 2 or 4, wherein said layer region comprises an organic photoconductive material.
Claim 14
Dependent Claim
16 words
The invention according to claim 2 or 4, wherein said light-receiving layer has a multi-layer structure.
Claim 15
Dependent Claim
24 words
The invention according to claim 2 or 4, wherein the light-receiving layer has a charge injection preventive layer as one of its constituent layers.
Claim 16
Dependent Claim
29 words
The invention according to claim 2 or 4, wherein the light-receiving layer has a charge injection preventive layer, and a photosensitive layer in the order from the substrate side.
Claim 17
Dependent Claim
29 words
The invention according to claim 2 or 4, wherein the light-receiving layer comprises an amorphous material comprising silicon atoms and at least one of hydrogen atoms and halogen atoms.
Claim 18
Dependent Claim
19 words
The invention according to claim 10, wherein the charge injection preventive layer contains a substance (C) for controlling conductivity.
Claim 19
Dependent Claim
29 words
The invention according to claim 13, wherein the substance (C) for controlling conductivity is an atom belonging to the gruop III or the group V of the periodic table.
Claim 20
Dependent Claim
29 words
The invention according to claim 13, wherein the content of the substance (C) for controlling conductivity in the charge injection preventive layer is 0.001 to 5×10 4 atomic ppm.
Claim 21
Dependent Claim
21 words
The invention according to claim 10, wherein the charge injection preventive layer has a layer thickness of 30 Å to 10μ.
Claim 22
Dependent Claim
19 words
The invention according to claim 11, wherein the charge injection preventive layer contains a substance (C) for controlling conductivity.
Claim 23
Dependent Claim
29 words
The invention according to claim 17, wherein the substance (C) for controlling conductivity is an atom belonging to the group III or the group V of the periodic table.
Claim 24
Dependent Claim
29 words
The invention according to claim 17, wherein the content of the substance (C) for controlling conductivity in the charge injection preventive layer is 0.001 to 5×10 4 atomic ppm.
Claim 25
Dependent Claim
21 words
The invention according to claim 11, wherein the charge injection preventive layer has a layer thickness of 30 Å to 10μ.
Claim 26
Dependent Claim
27 words
The invention according to claim 11, wherein the photosensitive layer comprises an amorphous material comprising silicon atoms and at least one of hydrogen atoms and halogen atoms.
Claim 27
Dependent Claim
18 words
The invention according to claim 11, wherein the photosensitive layer has a layer thickness of 1 to 100μ.
Claim 28
Dependent Claim
22 words
The invention according to claim 2 or 4, wherein the light-receiving layer has a barrier layer as one of the constituent layers.
Claim 29
Dependent Claim
14 words
The invention according to claim 23, wherein the barrier layer comprises an insulating material.
Claim 30
Dependent Claim
26 words
The invention according to claim 12, wherein the light-receiving layer contains at least one kind of atoms selected from oxygen atoms, carbon atoms and nitrogen atoms.
Claim 31
Dependent Claim
32 words
The invention according to claim 2 or 4, wherein the light-receiving layer has an electroconductive layer, a barrier layer, a charge generation layer and a charge transport layer from the substrate side.
Claim 32
Dependent Claim
18 words
The invention according to claim 1, 2, 3, 4 or 5, wherein said protruding portions are arranged regularly.
Claim 33
Dependent Claim
20 words
The invention according to claim 1, 2, 3, 4 or 5, wherein said protruding portions are arranged in 15 cycles.
Claim 34
Dependent Claim
26 words
The invention according to claim 1, 2, 3, 4 or 5, wherein each of said protruding portions has the same shape as the first order approximation.
Claim 35
Dependent Claim
20 words
The invention according to claim 1, 2, 3, 4 or 5, wherein said protruding portions have a plurality of subprojections.
Claim 36
Dependent Claim
28 words
The invention according to claim 1, 2, 3, 4 or 5, wherein said sectional shape of said protruding portion is symmetrical with the main projection as its center.
Claim 37
Dependent Claim
28 words
The invention according to claim 1, 2, 3, 4 or 5, wherein said sectional shape of said protruding portion is asymmetrical with the main projection as its center.
Claim 38
Dependent Claim
20 words
The invention according to claim 1, 2, 3, 4 or 5, wherein said protruding portion is formed by mechanical working.
Claim 39
Dependent Claim
37 words
The invention according to claim 3 or 5, wherein the light-receiving layer contains at least one kind of atoms selected from oxygen atoms, carbon atoms and nitrogen atoms in uniform distribution state in the layer thickness direction.
Claim 40
Dependent Claim
37 words
The invention according to claim 3 or 5, wherein the light-receiving layer contains at least one kind of atoms selected from oxygen atoms, carbcn atoms and nitrogen atoms in nonuniform distribution state in the layer thickness direction.
Claim 41
Dependent Claim
35 words
The invention according to claim 35, wherein said nonuniform distribution state is such that the depth profile has a portion in which the concentration is decreased toward the free surface side of the light-receiving layer.
Claim 42
Dependent Claim
30 words
The invention according to claim 35, wherein said nonuniform distribution state is such that the depth profile has a portion in which the concentration is increased toward the substrate side.
Claim 43
Dependent Claim
37 words
The invention according to claim 35, in which said nonuniform distribution state is such that the maximum distribution concentration is possessed in the layer region at the end portion on the substrate side of said light-receiving layer.
Claim 44
Dependent Claim
21 words
The invention according to claim 3 or 5, wherein a substance (C) for controlling conductivity is contained in the light-receiving layer.
Claim 45
Dependent Claim
29 words
The invention according to claim 39, wherein the substance (C) for controlling conductivity is an atom belonging to the group III or the group V of the periodic table.
Claim 46
Dependent Claim
29 words
The invention according to claim 39, wherein the substance (C) for controlling conductivity is an atom selected from among B, Al, Ga, In, Tl, P, As, Sb and Bi.
Claim 47
Dependent Claim
23 words
The invention according to claim 3 or 5, wherein the light-receiving layer has a layer region (PN) containing a substance for controlling conductivity.
Claim 48
Dependent Claim
28 words
The invention according to claim 42, wherein the distribution state of the substance for controlling conductivity in the layer region (PN) is uniform in the layer thickness direction.
Claim 49
Dependent Claim
28 words
The invention according to claim 42, wherein the substance for controlling conductivity is an atom belonging to the group III or the group V of the periodic table.
Claim 50
Dependent Claim
25 words
The invention according to claim 42, wherein the layer region (PN) is provided at the end portion on the substrate side of the light-receiving layer.
Claim 51
Dependent Claim
22 words
The invention according to claim 42, wherein the layer region (PN) occupies a part of the layer region in the light-receiving layer.
Claim 52
Dependent Claim
27 words
The invention according to claim 46, wherein the content of the substance for controlling conductivity in the layer region (PN) is 0.01 to 5×10 4 atomic ppm.
Claim 53
Dependent Claim
24 words
The invention according to claim 3 or 5, wherein at least one of hydrogen atoms and halogen atoms are contained in the light-receiving layer.
Claim 54
Dependent Claim
23 words
The invention according to claim 3 or 5, wherein 0.01 to 40 atomic % of hydrogen atoms are contained in the light-receiving layer.
Claim 55
Dependent Claim
23 words
The invention according to claim 3 or 5, wherein 0.01 to 40 atomic % of halogen atoms are contained in the light-receiving layer.
Claim 56
Dependent Claim
29 words
The invention according to claim 3 or 5, wherein 0.01 to 40 atomic % as a total of hydrogen atoms and halogen atoms are contained in the light-receiving layer.
Claim 57
Dependent Claim
32 words
The invention according to claim 2, 3, 4 or 5, wherein the light-receiving layer region (OCN) containing at least one kind of atoms selected from oxygen atoms, nitrogen atoms and carbon atoms.
Claim 58
Dependent Claim
25 words
The invention according to claim 52, wherein the layer region (OCN) is provided at the end portion on the substrate side of the light-receiving layer.
Claim 59
Dependent Claim
20 words
The invention according to claim 53, wherein the layer region (OCN) contains 0.001 to 50 atomic % of oxygen atoms.
Claim 60
Dependent Claim
20 words
The invention according to claim 53, wherein the layer region (OCN) contains 0.001 to 50 atomic % of carbon atoms.
Claim 61
Dependent Claim
20 words
The invention according to claim 53, wherein the layer region (OCN) contains 0.001 to 50 atomic % of nitrogen atoms.
Claim 62
Dependent Claim
25 words
The invention according to claim 53, wherein oxygen atoms are contained in the layer region (OCN) in nonuniform distribution state in the layer thickness direction.
Claim 63
Dependent Claim
25 words
The invention according to claim 53, wherein oxygen atoms are contained in the layer region (OCN) in uniform distribution state in the layer thickness direction.
Claim 64
Dependent Claim
25 words
The invention according to claim 53, wherein carbon atoms are contained in the layer region (OCN) in nonuniform distribution state in the layer thickness direction.
Claim 65
Dependent Claim
25 words
The invention according to claim 53, wherein carbon atoms are contained in the layer region (OCN) in uniform distribution state in the layer thickness direction.
Claim 66
Dependent Claim
25 words
The invention according to claim 53, wherein nitrogen atoms are contained in the layer region (OCN) in nonuniform distribution state in the layer thickness direction.
Claim 67
Dependent Claim
25 words
The invention according to claim 53, wherein nitrogen atoms are contained in the layer region (OCN) in uniform distribution state in the layer thickness direction.
Claim 68
Dependent Claim
20 words
The invention according to claim 3 or 5, wherein the light-receiving layer has a layer thickness of 1 to 100μ.
Claim 69
Dependent Claim
46 words
An electrophotographic image forming process comprising: (a) applying a charging treatment to the light receiving member of claim 2 or 3; (b) irradiating the light receiving member with a laser beam carrying information to form an electrostatic latent image; and (c) developing said electrostatic latent image.
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) | 1990-11-09 | 1991-05-11 | 1991-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-09 | 1995-05-11 | 1995-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-09 | 1999-05-11 | 1999-11-10 | $7700.00 | Window Closed / Lapsed |