US4490450A
Expired / Lapsed
US
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Photoconductive member
Assignee: Canon Inc
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Filing: 1983-03-28
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Granted: 1984-12-25
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Expires: 2003-03-28
Abstract
Abstract A photoconductive member comprises a support for a photoconductive member and an amorphous layer having a layer constitution comprising a first layer region comprising an amorphous material containing silicon atoms and germanium atoms and a second layer region comprising an amorphous material containing silicon atoms and exhibiting photoconductivity, said first and second layer regions being provided successively from the side of said support.
Inventors
- 👤 Isamu Shimizu
- 👤 Kozo Arao
- 👤 Eiichi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:53
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082
Claims Analysis
Total Claims: 58
Claim 1
Independent Claim
106 words
A photoconductive member comprising a support and an amorphous layer having a layer constitution comprising a first layer region comprising an amorphous material containing silicon atoms, 1-9.5×10 5 atomic ppm of germanium atoms and 0.01-40 atomic % of at least one of hydrogen atoms and halogen atoms, and having a layer thickness of 30 Å-50μ, and a second layer region comprising an amorphous material containing silicon atoms and 1-40 atomic % of at least one of hydrogen atoms and halogen atoms, and having a layer thickness of 0.5-90μ and exhibiting photoconductivity, said first and second layer regions being provided successively from the side of said support.
Claim 2
Dependent Claim
106 words
A photoconductive member comprising a support and an amorphous layer having a layer constitution comprising a first layer region comprising an amorphous material containing silicon atoms, 1-9.5×10 5 atomic ppm of germanium atoms and 0.01-40 atomic % of at least one of hydrogen atoms and halogen atoms, and having a layer thickness of 30 Å-50μ, and a second layer region comprising an amorphous material containing silicon atoms and 1-40 atomic % of at least one of hydrogen atoms and halogen atoms, and having a layer thickness of 0.5-90μ and exhibiting photoconductivity, said first and second layer regions being provided successively from the side of said support.
Claim 3
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the first layer region contains a substance for controlling the conduction characteristics.
Claim 4
Dependent Claim
27 words
A photoconductive member according to claim 2, wherein the substance for controlling the conduction characteristics is an atom belonging to the grup III of the periodic table.
Claim 5
Dependent Claim
32 words
A photoconductive member according to claim 3, wherein the atom belonging to the group III of the periodic table is selected from the group consisting of B, Al, Ga, In and Tl.
Claim 6
Dependent Claim
19 words
A photoconductive member according to claim 3, wherein the substance for controlling the conduction characteristics is a P-type purity.
Claim 7
Dependent Claim
27 words
A photoconductive member according to claim 2, wherein the substance for controlling the conduction characteristics is an atom belonging to the group V of the periodic table.
Claim 8
Dependent Claim
31 words
A photoconductive member according to claim 6, wherein the atom belonging to the group V of the periodic table is selected from the group consisting of P, Aa, Sb and Bi.
Claim 9
Dependent Claim
19 words
A photoconductive member according to claim 2, wherein the substance for controlling the conduction characteristics is an N-type purity.
Claim 10
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein the amorphous layer contains a substance for controlling the conduction characteristics.
Claim 11
Dependent Claim
19 words
A photoconductive member according to claim 9, wherein the substance for controlling the conduction characteristics is a P-type purity.
Claim 12
Dependent Claim
19 words
A photoconductive member according to claim 9, wherein the substance for controlling the conduction characteristics is an N-type purity.
Claim 13
Dependent Claim
27 words
A photoconductive member according to claim 9, wherein the substance for controlling the conduction characteristics is an atom belonging to the group III of the periodic table.
Claim 14
Dependent Claim
32 words
A photoconductive member according to claim 12, wherein the atom belonging to the group III of the periodic table is selected from the group consisting of B, Al, Ga, In and Tl.
Claim 15
Dependent Claim
27 words
A photoconductive member according to claim 9, wherein the substance for controlling the conduction characteristics is an atom belonging to the group V of the periodic table.
Claim 16
Dependent Claim
31 words
A photoconductive member according to claim 14, wherein the atom belonging to the group V of the periodic table is selected from the group consisting of P, As, Sb and Bi.
Claim 17
Dependent Claim
29 words
A photoconductive member according to claim 9, wherein the amorphous layer has a layer region (P) containing a P-type impurity and a layer region (N) containing an N-type impurity.
Claim 18
Dependent Claim
22 words
A photoconductive member according to claim 16, wherein the layer region (P) and the layer region (N) are contacted with each other.
Claim 19
Dependent Claim
27 words
A photoconductive member according to claim 17, wherein the layer region (P) is provided as end portion layer region on the support side of the amorphous layer.
Claim 20
Dependent Claim
29 words
A photoconductive member according to claim 1, wherein the amorphous layer has a layer region containing a P-type impurity in the end portion layer region on the support side.
Claim 21
Dependent Claim
36 words
A photoconductive memboer according to claim 1, wherein the layer thickness T B of the first layer region and the layer thickness T of the second layer region has the following relation: T B /T 1.
Claim 22
Dependent Claim
14 words
A photoconductive member according to claim 1, wherein the amorphous layer contains oxygen atoms.
Claim 23
Dependent Claim
24 words
A photoconductive member according to claim 21, wherein the oxygen atoms are contained in a distribution state ununiform in the direction of layer thickness.
Claim 24
Dependent Claim
23 words
A photoconductive member according to claim 22, wherein the oxygen atoms are contained in a distribution state more enriched toward the support side.
Claim 25
Dependent Claim
24 words
A photoconductive member according to claim 1, wherein the amorphous layer contains oxygen atoms in the end portion layer region on the support side.
Claim 26
Dependent Claim
79 words
A photoconductive member comprising a support and an amorphous layer having a layer constitution comprising a first layer region comprising an amorphous material containing silicon atoms and germanium atoms and a second layer region comprising an amorphous material containing silicon atoms and exhibiting photoconductivity, said first and second layer regions being provided successively from the side of said support, said germanium atoms being distributed nonuniformly within the first layer region in the direction of the first layer region thickness.
Claim 27
Dependent Claim
79 words
A photoconductive member comprising a support and an amorphous layer having a layer constitution comprising a first layer region comprising an amorphous material containing silicon atoms and germanium atoms and a second layer region comprising an amorphous material containing silicon atoms and exhibiting photoconductivity, said first and second layer regions being provided successively from the side of said support, said germanium atoms being distributed nonuniformly within the first layer region in the direction of the first layer region thickness.
Claim 28
Dependent Claim
20 words
A photoconductive member according to claim 25, wherein the first layer region contains a substance for controlling the conduction characteristics.
Claim 29
Dependent Claim
26 words
A photoconductive member according to claim 26 wherein the substance for controlling the conduction characteristics is an atom belonging to Group III of the periodic table.
Claim 30
Dependent Claim
31 words
A photoconductive member according to claim 27, wherein the atom belonging to Group III of the periodic table is selected from the group consisting of B, Al, Ga, In and Tl.
Claim 31
Dependent Claim
19 words
A photoconductive member according to claim 26, wherein the substance for controlling the conduction characteristics is a P-type impurity.
Claim 32
Dependent Claim
26 words
A photoconductive member according to claim 26, wherein the substance for controlling the conduction characteristics is an atom belonging to Group V of the periodic table.
Claim 33
Dependent Claim
30 words
A photoconductive member according to claim 30, wherein the atom belonging to Group V of the periodic table is selected from the group consisting of P, As, Sb and Bi.
Claim 34
Dependent Claim
19 words
A photoconductive member according to claim 26, wherein the substance for controlling the conduction characteristics is a N-type impurity.
Claim 35
Dependent Claim
19 words
A photoconductive member according to claim 25, wherein the amorphous layer contains a substance for controlling the conduction characteristics.
Claim 36
Dependent Claim
19 words
A photoconductive member according to claim 33, wherein the substance for controlling the conduction characteristics is a P-type impurity.
Claim 37
Dependent Claim
19 words
A photoconductive member according to claim 33, wherein the substance for controlling the conduction characteristics is a N-type impurity.
Claim 38
Dependent Claim
26 words
A photoconductive member according to claim 33, wherein the substance for controlling the conduction characteristics is an atom belonging to Group III of the periodic table.
Claim 39
Dependent Claim
31 words
A photoconductive member according to claim 36, wherein the atom belonging to Group III of the periodic table is selected from the group consisting of B, Al, Ga, In and Tl.
Claim 40
Dependent Claim
26 words
A photoconductive member according to claim 33, wherein the substance for controlling the conduction characteristics is an atom belonging to Group V of the periodic table.
Claim 41
Dependent Claim
30 words
A photoconductive member according to claim 38, wherein the atom belonging to Group V of the periodic table is selected from the group consisting of P, As, Sb, and Bi.
Claim 42
Dependent Claim
29 words
A photoconductive member according to claim 33, wherein the amorphous layer has a layer region (P) containing a P-type impurity and a layer region (N) containing a N-type impurity.
Claim 43
Dependent Claim
22 words
A photoconductive member according to claim 40, wherein the layer region (P) and the layer region (N) are contacted with each other.
Claim 44
Dependent Claim
28 words
A photoconductive member according to claim 41, wherein the layer region (P) is provided as an end portion layer region on the support side of the amorphous layer.
Claim 45
Dependent Claim
29 words
A photoconductive member according to claim 25, wherein the amorphous layer has a layer region containing a P-type impurity in the end portion layer region on the support side.
Claim 46
Dependent Claim
35 words
A photoconductive member according to claim 25, wherein the layer thickness T B of the first layer region and the layer thickness T of the second layer region has the following relation: T B /T≦1.
Claim 47
Dependent Claim
14 words
A photoconductive member according to claim 25, wherein the amorphous layer contains oxygen atoms.
Claim 48
Dependent Claim
24 words
A photoconductive member according to claim 45, wherein the oxygen atoms are contained in a nonuniform distribution state in the direction of layer thickness.
Claim 49
Dependent Claim
23 words
A photoconductive member according to claim 46, wherein the oxygen atoms are contained in a distribution state more enriched toward the support side.
Claim 50
Dependent Claim
24 words
A photoconductive member according to claim 25, wherein the amorphous layer contains oxygen atoms in the end portion layer region on the support side.
Claim 51
Dependent Claim
25 words
A photoconductive member according to claim 1, wherein the amorphous layer has a layer region (PN) containing a substance (C) for controlling the conduction characteristics.
Claim 52
Dependent Claim
24 words
A photoconductive member according to claim 49, wherein the content of said substance (C) in the layer region (PN) is 0.01-5×10 4 atomic ppm.
Claim 53
Dependent Claim
22 words
A photoconductive member according to claim 49, wherein the substance (C) is an atom belonging to Group III of the periodic table.
Claim 54
Dependent Claim
22 words
A photoconductive member according to claim 49, wherein the substance (C) is an atom belonging to Group V of the periodic table.
Claim 55
Dependent Claim
25 words
A photoconductive member according to claim 25, wherein the amorphous layer has a layer region (PN) containing a substance (C) for controlling the conduction characteristics.
Claim 56
Dependent Claim
24 words
A photoconductive member according to claim 53, wherein the content of said substance (C) in the layer region (PN) is 0.01-5×10 4 atomic ppm.
Claim 57
Dependent Claim
22 words
A photoconductive member according to claim 53, wherein the substance (C) is an atom belonging to Group III of the periodic table.
Claim 58
Dependent Claim
21 words
A photoconductive member according to claim 53, wherein the substance (C) is an atom belonging to Group V of periodic table.
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) | 1987-12-25 | 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 |