US4490454A
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US
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Photoconductive member comprising multiple amorphous layers
Assignee: Canon Inc
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Filing: 1983-03-14
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Granted: 1984-12-25
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Expires: 2003-03-14
Abstract
Abstract A photoconductive member comprises a support for photoconductive member and an amorphous layer comprising an amorphous material containing silicon atoms as a matrix and exhibiting photoconductivity, said amorphous layer having a first layer region containing, as constituent atoms, oxygen atoms and a second layer region containing, as constituent atoms, the atoms belonging to the group V of the periodic table in a distribution which is continuous in the direction of the layer thickness and more enriched toward the side of said support.
Inventors
- 👤 Teruo Misumi
- 👤 Kyosuke Ogawa
- 👤 Junichiro Kanbe
- 👤 Keishi Saitoh
- 👤 Yoichi Osato
- 👤 Shigeru Shirai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:23
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221; G03G5/08228; G03G5/08235; G03G5/08242
Claims Analysis
Total Claims: 47
Claim 1
Independent Claim
92 words
A photoconductive member comprising a support for photoconductive member and an amorphous layer comprising an amorphous material containing silicon atoms as a matrix and containing hydrogen atoms or halogen atoms as a constituent and exhibiting photoconductivity, said amorphous layer having a first layer region containing, as constituent atoms, oxygen atoms and a second layer region containing, as constituent atoms, the atoms belonging to the group V of the periodic table in a distribution which is continuous in the direction of the layer thickness and more enriched toward the side of said support.
Claim 2
Dependent Claim
92 words
A photoconductive member comprising a support for photoconductive member and an amorphous layer comprising an amorphous material containing silicon atoms as a matrix and containing hydrogen atoms or halogen atoms as a constituent and exhibiting photoconductivity, said amorphous layer having a first layer region containing, as constituent atoms, oxygen atoms and a second layer region containing, as constituent atoms, the atoms belonging to the group V of the periodic table in a distribution which is continuous in the direction of the layer thickness and more enriched toward the side of said support.
Claim 3
Dependent Claim
21 words
A photoconductive member according to claim 1, wherein the first layer region occupies the whole layer region of the amorphous layer.
Claim 4
Dependent Claim
31 words
A photoconductive member according to claim 1, wherein the second layer region is provided at the end portion layer region on the support side as a part of the amorphous layer.
Claim 5
Dependent Claim
32 words
A photoconductive member according to claim 3, wherein there is provided a third layer region containing no atom belonging to the group V of the periodic table on the second layer region.
Claim 6
Dependent Claim
20 words
A photoconductive member according to claim 4, wherein the third layer region contains a substance for controlling the conduction characteristics.
Claim 7
Dependent Claim
27 words
A photoconductive member according to claim 5, wherein the substance for controlling the conduction characteristics is an atom belonging to the group III of the periodic table.
Claim 8
Dependent Claim
19 words
A photoconductive member according to claim 5, wherein the substance for controlling the conduction characteristics is a p-type impurity.
Claim 9
Dependent Claim
20 words
A photoconductive member according to claim 3, wherein the second layer region has a thickness of 30 Å to 5μ.
Claim 10
Dependent Claim
47 words
A photoconductive member according to claim 3, wherein the second layer region has the maximum distribution concentration value Cmax of the contents of the atoms belonging to the group V of the periodic table within 5μ in the direction of the layer thickness from the support side.
Claim 11
Dependent Claim
20 words
A photoconductive member according to claim 9, wherein the Cmax is 100 atomic ppm or more based on silicon atoms.
Claim 12
Dependent Claim
24 words
A photoconductive member according to claim 1, wherein the content of oxygen atoms in the first layer region is 0.001 to 30 atomic %.
Claim 13
Dependent Claim
34 words
A photoconductive member according to claim 1, wherein the content of the atoms belonging to the group V of the periodic table in the second layer region is 30 to 5×10 4 atomic ppm.
Claim 14
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the second layer region has a thickness of 30 Å to 5μ.
Claim 15
Dependent Claim
18 words
A photoconductive member according to claim 1, wherein the amorphous layer has a thickness of 1 to 100μ.
Claim 16
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein hydrogen atoms are contained in the amorphous layer.
Claim 17
Dependent Claim
23 words
A photoconductive member according to claim 15, wherein the content of hydrogen atoms in the amorphous layer is 1 to 40 atomic %.
Claim 18
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein halogen atoms are contained in the amorphous layer.
Claim 19
Dependent Claim
23 words
A photoconductive member according to claim 17, wherein the content of halogen atoms in the amorphous layer is 1 to 40 atomic %.
Claim 20
Dependent Claim
21 words
A photoconductive member according to claim 1, wherein both of hydrogen atoms and halogen atoms are contained in the amorphous layer.
Claim 21
Dependent Claim
23 words
A photoconductive member according to claim 19, wherein the total content of hydrogen atoms and hajogen atoms is 1 to 40 atomic %.
Claim 22
Dependent Claim
108 words
A photoconductive member comprising a support for photoconductive member, a first amorphous layer comprising an amorphous material containing silicon atoms as a matrix and containing hydrogen atoms or halogen atoms as a constituent and exhibiting photoconductivity, and a second amorphous layer comprising an amorphous material containing silicon atoms and carbon atoms, said first amorphous layer having a first layer region containing, as constituent atoms, oxygen atoms and a second layer region containing, as constituent atoms, the atoms belonging to the group V of the periodic table in a distribution which is continuous in the direction of the layer thickness and more enriched toward the side of said support.
Claim 23
Dependent Claim
108 words
A photoconductive member comprising a support for photoconductive member, a first amorphous layer comprising an amorphous material containing silicon atoms as a matrix and containing hydrogen atoms or halogen atoms as a constituent and exhibiting photoconductivity, and a second amorphous layer comprising an amorphous material containing silicon atoms and carbon atoms, said first amorphous layer having a first layer region containing, as constituent atoms, oxygen atoms and a second layer region containing, as constituent atoms, the atoms belonging to the group V of the periodic table in a distribution which is continuous in the direction of the layer thickness and more enriched toward the side of said support.
Claim 24
Dependent Claim
21 words
A photoconductive member according to claim 21, wherein the first layer region occupies the whole layer region of the amorphous layer.
Claim 25
Dependent Claim
31 words
A photoconductive member according to claim 21, wherein the second layer region is provided at the end portion layer region on the support side as a part of the amorphous layer.
Claim 26
Dependent Claim
32 words
A photoconductive member according to claim 23, wherein there is provided a third layer region containing no atom belonging to the group V of the periodic table on the second layer region.
Claim 27
Dependent Claim
20 words
A photoconductive member according to claim 24, wherein the third layer region contains a substance for controlling the conduction characteristics.
Claim 28
Dependent Claim
27 words
A photoconductive member according to claim 25, wherein the substance for controlling the conduction characteristics is an atom belonging to the group III of the periodic table.
Claim 29
Dependent Claim
19 words
A photoconductive member according to claim 25, wherein the substance for controlling the conduction characteristics is a p-type impurity.
Claim 30
Dependent Claim
20 words
A photoconductive member according to claim 23, wherein the second layer region has a thickness of 30 Å to 5μ.
Claim 31
Dependent Claim
47 words
A photoconductive member according to claim 23, wherein the second layer region has the maximum distribution concentration value Cmax of the contents of the atoms belonging to the group V of the periodic table within 5μ in the direction of the layer thickness from the support side.
Claim 32
Dependent Claim
20 words
A photoconductive member according to claim 29, wherein the Cmax is 100 atomic ppm or more based on silicon atoms.
Claim 33
Dependent Claim
24 words
A photoconductive member according to claim 21, wherein the content of oxygen atoms in the first layer region is 0.001 to 30 atomic %.
Claim 34
Dependent Claim
34 words
A photoconductive member according to claim 21, wherein the content of the atoms belonging to the group V of the periodic table in the second layer region is 30 to 5×10 4 atomic ppm.
Claim 35
Dependent Claim
20 words
A photoconductive member according to claim 21, wherein the second layer region has a thickness of 30 Å to 5μ.
Claim 36
Dependent Claim
18 words
A photoconductive member according to claim 21, wherein the amorphous layer has a thickness of 1 to 100μ.
Claim 37
Dependent Claim
16 words
A photoconductive member according to claim 21, wherein hydrogen atoms are contained in the amorphous layer.
Claim 38
Dependent Claim
23 words
A photoconductive member according to claim 35, wherein the content of hydrogen atoms in the amorphous layer is 1 to 40 atomic %.
Claim 39
Dependent Claim
16 words
A photoconductive member according to claim 21, wherein halogen atoms are contained in the amorphous layer.
Claim 40
Dependent Claim
19 words
A photoconductive member according to claim 37, wherein the content of halogen atoms is 1 to 40 atomic %.
Claim 41
Dependent Claim
21 words
A photoconductive member according to claim 21, wherein both of hydrogen atoms and halogen atoms are contained in the amorphous layer.
Claim 42
Dependent Claim
23 words
A photoconductive member according to claim 39, wherein the total content of hydrogen atoms and halogen atoms is 1 to 40 atomic %.
Claim 43
Dependent Claim
18 words
A photoconductive member according to claim 21, wherein the amorphous material containing carbon atoms further contains hydrogen atoms.
Claim 44
Dependent Claim
18 words
A photoconductive member according to claim 21, wherein the amorphous material containing carbon atoms further contains halogen atoms.
Claim 45
Dependent Claim
23 words
A photoconductive member according to claim 21, wherein the amorphous material containing carbon atoms further contains both of hydrogen atoms and halogen atoms.
Claim 46
Dependent Claim
19 words
A photoconductive member according to claim 21, wherein the second amorphous layer has a thickness of 0.003 to 30μ.
Claim 47
Dependent Claim
62 words
A photoconductive member according to claim 21, wherein the amorphous material containing carbon atoms is a member of the group consisting of general formula (1); general formula (2); or general formula (3); wherein (1), (2) and (3) are as follows: (1) a-Si.sub.a C.sub.1-a wherein 0.1≦a≦0.99999, (2) a-(Si.sub.b C.sub.1-b).sub.c H.sub.1-c wherein 0.1≦b≦0.99999 and 0.6≦c≦0.99, and (3) a-(Si.sub.d D.sub.1-d).sub.e (X,H).sub.1-e wherein 0.1≦d≦0.99999 and 0.8≦e≦0.99.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-25 | 1988-06-25 | 1988-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-25 | 1992-06-25 | 1992-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-25 | 1996-06-25 | 1996-12-25 | $7700.00 | Window Closed / Lapsed |