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US4547448A
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Photoconductive member comprising silicon and oxygen
Assignee: Canon Inc
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Filing: 1984-07-06
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Granted: 1985-10-15
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Expires: 2004-07-06
Abstract
Abstract A photoconductive member comprises a support for a photoconductive member; a first amorphous layer comprising an amorphous material containing silicon atoms as a matrix and exhibiting photoconductivity, said first amorphous layer having a first layer region containing oxygen atoms as constituent atoms in a distribution state which is ununiform and continuous in the direction of layer thickness and a second layer region containing atoms belonging to the group III of the periodic table as constituent atoms in a distribution state which is continuous in the direction of layer thickness, said first layer region existing internally beneath the surface of said first amorphous layer; and a second amorphous layer comprising an amorphous material represented by any of the following formulae: Si.sub.a C.sub.1-a (0.4<a<1) (1) (Si.sub.b C.sub.1-b).sub.c H.sub.1-c (0.5<b<1, 0.6≦c<1) (2) (Si.sub.d C.sub.1-d).sub.e X.sub.1-e (0.47<d<1, 0.8≦e<1) (3) (Si.sub.f C.sub.1-f).sub.g (H+X).sub.1-g (0.47<f<1, 0.8≦g<1) (4) (wherein X represents a halogen atom).
Inventors
- 👤 Shigeru Shirai
- 👤 Kyosuke Ogawa
- 👤 Junichiro Kanbe
- 👤 Keishi Saitoh
- 👤 Yoichi Osato
- 👤 Teruo Misumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:40
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08235; G03G5/08242
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
161 words
A photoconductive member comprising: a support for a photoconductive member; a first amorphous layer comprising an amorphous material containing silicon atoms as a matrix and exhibiting photoconductivity, said first amorphous layer having a first layer region containing oxygen atoms as constituent atoms in a distribution state which is uniform and continuous in the direction of layer thickness and a second layer region containing atoms belonging to the group III of the periodic table as constituent atoms in a distribution state which is continuous in the direction of layer thickness, said first layer region existing internally beneath the surface of said first amorphous layer, wherein the first layer region and the second layer region share at least a portion thereof; and a second amorphous layer comprising an amorphous material represented by any of the following formulae: Si.sub.a C.sub.1-a (0.4<a<1) (1) (Si.sub.b C.sub.1-b).sub.c H.sub.1-c (0.5<b<1, 0.6≦c<1)(2) (Si.sub.d C.sub.1-d).sub.e X.sub.1-e (0.47<d<1, 0.8≦e<1)(3) (Si.sub.f C.sub.1-f).sub.g (H+X).sub.1-g (0.47<f<1, 0.8≦g<1) (4) wherein X represents a halogen atom.
Claim 2
Dependent Claim
161 words
A photoconductive member comprising: a support for a photoconductive member; a first amorphous layer comprising an amorphous material containing silicon atoms as a matrix and exhibiting photoconductivity, said first amorphous layer having a first layer region containing oxygen atoms as constituent atoms in a distribution state which is uniform and continuous in the direction of layer thickness and a second layer region containing atoms belonging to the group III of the periodic table as constituent atoms in a distribution state which is continuous in the direction of layer thickness, said first layer region existing internally beneath the surface of said first amorphous layer, wherein the first layer region and the second layer region share at least a portion thereof; and a second amorphous layer comprising an amorphous material represented by any of the following formulae: Si.sub.a C.sub.1-a (0.4<a<1) (1) (Si.sub.b C.sub.1-b).sub.c H.sub.1-c (0.5<b<1, 0.6≦c<1)(2) (Si.sub.d C.sub.1-d).sub.e X.sub.1-e (0.47<d<1, 0.8≦e<1)(3) (Si.sub.f C.sub.1-f).sub.g (H+X).sub.1-g (0.47<f<1, 0.8≦g<1) (4) wherein X represents a halogen atom.
Claim 3
Dependent Claim
38 words
A photoconductive member according to claim 1, wherein the state of distribution of the atoms belonging to the group III of the periodic table is uniform in the direction of the layer thickness of the second layer region.
Claim 4
Dependent Claim
38 words
A photoconductive member according to claim 1, wherein the state of distribution of the atoms belonging to the group III of the periodic table is ununiform in the direction of the layer thickness of the second layer region.
Claim 5
Dependent Claim
22 words
A photoconductive member according to claim 1, wherein the first layer region and the second layer region are substantially the same region.
Claim 6
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the first layer region constitutes a part of the second layer region.
Claim 7
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the second layer region constitutes a part of the first layer region.
Claim 8
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein hydrogen atoms are contained in the first amorphous layer.
Claim 9
Dependent Claim
24 words
A photoconductive member according to claim 7, wherein the content of hydrogen atoms in the first amorphous layer is 1 to 40 atomic %.
Claim 10
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein halogen atoms are contained in the first amorphous layer.
Claim 11
Dependent Claim
19 words
A photoconductive member according to claim 9, wherein the content of halogen atoms is 1 to 40 atomic %.
Claim 12
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein hydrogen atoms and halogen atoms are contained in the first amorphous layer.
Claim 13
Dependent Claim
23 words
A photoconductive member according to claim 11, wherein the total content of hydrogen atoms and halogen atoms is 1 to 40 atomic %.
Claim 14
Dependent Claim
28 words
A photoconductive member according to claim 1, wherein the atoms belonging to the group III of the periodic table are selected from B, Al, Ga, In and Tl.
Claim 15
Dependent Claim
33 words
A photoconductive member according to claim 1, wherein the content of the atoms belonging to the group III of the periodic table in the second layer region is 0.01 to 1000 atomic ppm.
Claim 16
Dependent Claim
39 words
A photoconductive member according to claim 1, wherein said second layer region has a layer region (Z) containing the atoms belonging to the group III of the periodic table at a high concentration on the side of the support.
Claim 17
Dependent Claim
31 words
A photoconductive member according to claim 15, wherein the content of the atoms belonging to the group III of the periodic table in the layer region (Z) is 0.1-10,000 atomic ppm.
Claim 18
Dependent Claim
30 words
A photoconductive member according to claim 1, wherein said first layer region has a layer region (O) containing oxygen atoms at a high concentration of the side of the support.
Claim 19
Dependent Claim
23 words
A photoconductive member according to claim 17, wherein the content of the oxygen atoms in the layer region (O) is 0.01-30 atomic %.
Claim 20
Dependent Claim
30 words
A photoconductive member according to claim 1, wherein said first amorphous layer has a layer region containing no oxygen atom between the first layer region and the second amorphous layer.
Claim 21
Dependent Claim
22 words
A photoconductive member according to claim 19, wherein said layer region containing no oxygen atom has a layer thickness of 100A-10 microns.
Claim 22
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein said first amorphous layer has a layer thickness of 1-100 microns.
Claim 23
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein said second amorphous layer has a layer thickness of 0.1-10 microns.
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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |