US4592981A
Expired / Lapsed
US
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Photoconductive member of amorphous germanium and silicon with carbon
Assignee: Canon Inc
•
Filing: 1984-09-12
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Granted: 1986-06-03
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Expires: 2004-09-12
Abstract
Abstract A photoconductive member comprises a substrate for photoconductive member and a light receiving layer having photoconductivity comprising an amorphous material containing silicon atoms and germanium atoms, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side [with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum].
Inventors
- 👤 Keishi Saitoh
- 👤 Yukihiko Ohnuki
- 👤 Shigeru Ohno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:37
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: 96
Claim 1
Independent Claim
183 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer having photoconductivity comprising an amorphous material containing silicon atoms and germanium atoms, and at least one of hydrogen atoms and halogen atoms, and wherein the content of germanium atoms in the light receiving layer is 1 to 9.5×10 5 atomic percent based on the sum of germanium and silicon atoms, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substance side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 2
Dependent Claim
183 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer having photoconductivity comprising an amorphous material containing silicon atoms and germanium atoms, and at least one of hydrogen atoms and halogen atoms, and wherein the content of germanium atoms in the light receiving layer is 1 to 9.5×10 5 atomic percent based on the sum of germanium and silicon atoms, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substance side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 3
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein hydrogen atoms are contained in the light receiving layer.
Claim 4
Dependent Claim
17 words
A photoconductive member according to claim 1 wherein halogen atoms are contained in the light receiving layer.
Claim 5
Dependent Claim
17 words
A photoconductive member according to claim 2, wherein halogen atoms are contained in the light receiving layer.
Claim 6
Dependent Claim
24 words
A photoconductive member according to claim 1, wherein the germanium atoms are distributed in the light receiving layer ununiformly in the layer thickness direction.
Claim 7
Dependent Claim
24 words
A photoconductive member according to claim 1, wherein the germanium atoms are distributed in the light receiving layer uniformly in the layer thickness direction.
Claim 8
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein a substance for controlling conductivity is contained in the light receiving layer.
Claim 9
Dependent Claim
25 words
A photoconductive member according to claim 7, wherein the substance for controlling conductivity is an atom belonging to the group III of the periodic table.
Claim 10
Dependent Claim
25 words
A photoconductive member according to claim 7, wherein the substance for controlling conductivity is an atom belonging to the group V of the periodic table.
Claim 11
Dependent Claim
19 words
A photoconductive member according to claim 2, wherein the content of hydrogen atoms is 0.01 to 40 atomic %.
Claim 12
Dependent Claim
19 words
A photoconductive member according to claim 3, wherein the content of halogen atoms is 0.01 to 40 atomic %.
Claim 13
Dependent Claim
23 words
A photoconductive member according to claim 7, wherein the content of the substance for controlling conductivity is 0.01 to 5×10 4 atomic ppm.
Claim 14
Dependent Claim
25 words
A photoconductive member according to claim 1, wherein the content of carbon atoms contained in the light receiving layer is 0.001 to 50 atomic %.
Claim 15
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the layer thickness of the light receiving layer is 1 to 100μ.
Claim 16
Dependent Claim
23 words
A photoconductive member according to claim 1, wherein the light receiving layer has a layer region (PN) containing a substance for controlling conductivity.
Claim 17
Dependent Claim
19 words
A photoconductive member accordiang to claim 4, wherein the content of halogen atoms is 0.01 to 40 atomic %.
Claim 18
Dependent Claim
213 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer provided on said substrate having a layer constitution in which a first layer region (G) comprising an amorphous material containing germanium atoms and at least one of hydrogen and halogen atoms and a second layer (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms and at least one of hydrogen or halogen atoms are successively provided from the substrate side wherein the content of germanium atoms in the first layer region (G) is 1 to 10×10 5 atomic ppm, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 19
Dependent Claim
213 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer provided on said substrate having a layer constitution in which a first layer region (G) comprising an amorphous material containing germanium atoms and at least one of hydrogen and halogen atoms and a second layer (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms and at least one of hydrogen or halogen atoms are successively provided from the substrate side wherein the content of germanium atoms in the first layer region (G) is 1 to 10×10 5 atomic ppm, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 20
Dependent Claim
28 words
A photoconductive member according to claim 17, wherein hydrogen atoms are contained in at least one of the first layer region (G) and the second layer region (S).
Claim 21
Dependent Claim
28 words
A photoconductive member according to claim 17, wherein halogen atoms are contained in at least one of the first layer region (G) and the second layer region (S).
Claim 22
Dependent Claim
28 words
A photoconductive member according to claim 18, wherein halogen atoms are contained in at least one of the first layer region (G) and the second layer region (S).
Claim 23
Dependent Claim
20 words
A photoconductive member according to claim 17, wherein the germanium atoms are distributed in the first layer region (G) ununiformly.
Claim 24
Dependent Claim
20 words
A photoconductive member according to claim 17, wherein the germanium atoms are distributed in the first layer region (G) uniformly.
Claim 25
Dependent Claim
20 words
A photoconductive member according to claim 17, wherein a substance for controlling conductivity is contained in the light receiving layer.
Claim 26
Dependent Claim
26 words
A photoconductive member according to claim 23, wherein the substance (C) for controlling conductivity is an atom belonging to the group III of the periodic table.
Claim 27
Dependent Claim
26 words
A photoconductive member according to claim 23, wherein the substance (C) for controlling conductivity is an atom belonging to the group V of the periodic table.
Claim 28
Dependent Claim
21 words
A photoconductive member according to claim 23, wherein the substance (C) for controlling conductivity is 0.01 to 5×10 4 atomic ppm.
Claim 29
Dependent Claim
26 words
A photoconductive member according to claim 18, wherein the content of hydrogen atoms contained in the first layer region (G) is 0.01 to 40 atomic %.
Claim 30
Dependent Claim
26 words
A photoconductive member according to claim 18, wherein the content of hydrogen atoms contained in the second layer region (S) is 1 to 40 atomic %.
Claim 31
Dependent Claim
26 words
A photoconductive member according to claim 19, wherein the content of halogen atoms contained in the first layer region (G) is 0.01 to 40 atomic %.
Claim 32
Dependent Claim
26 words
A photoconductive member according to claim 19, wherein the content of halogen atoms contained in the second layer region (S) is 0.01 to 40 atomic %.
Claim 33
Dependent Claim
25 words
A photoconductive member according to claim 17, wherein the content of carbon atoms contained in the light receiving layer is 0.001 to 50 atomic %.
Claim 34
Dependent Claim
22 words
A photoconductive member according to claim 17, wherein the layer thickness of the first layer region (G) is 30 Å to 50μ.
Claim 35
Dependent Claim
21 words
A photoconductive member according to claim 17, wherein the layer thickness of the second layer region (S) is 0.5 to 90μ.
Claim 36
Dependent Claim
20 words
A photoconductive member according to claim 17, wherein the layer thickness of the light receiving layer is 1 to 100μ.
Claim 37
Dependent Claim
23 words
A photoconductive member according to claim 17, wherein the light receiving layer has a layer region (PN) containing a substance for controlling conductivity.
Claim 38
Dependent Claim
26 words
A photoconductive member according to claim 20, wherein the content of halogen atoms contained in the first layer region (G) is 0.01 to 40 atomic %.
Claim 39
Dependent Claim
26 words
A photoconductive member according to claim 20, wherein the content of halogen atoms contained in the second layer region (S) is 0.01 to 40 atomic %.
Claim 40
Dependent Claim
220 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer provided on said substrate having photoconductivity comprising an amorphous material containing silicon atoms and germanium atoms wherein the content of germanium atoms in the first layer is 1 to 9.5×10 5 atomic ppm, based on the sum of germanium and silicon atoms and a second layer provided on said first layer comprising an amorphous material containing at least one of nitrogen atoms and oxygen atoms in a matrix of silicon atoms, wherein said first layer contains at least one of hydrogen and halogen atoms, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2) respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 41
Dependent Claim
220 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer provided on said substrate having photoconductivity comprising an amorphous material containing silicon atoms and germanium atoms wherein the content of germanium atoms in the first layer is 1 to 9.5×10 5 atomic ppm, based on the sum of germanium and silicon atoms and a second layer provided on said first layer comprising an amorphous material containing at least one of nitrogen atoms and oxygen atoms in a matrix of silicon atoms, wherein said first layer contains at least one of hydrogen and halogen atoms, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2) respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 42
Dependent Claim
16 words
A photoconductive member according to claim 38, wherein hydrogen atoms are contained in the first layer.
Claim 43
Dependent Claim
16 words
A photoconductive member according to claim 38, wherein halogen atoms are contained in the first layer.
Claim 44
Dependent Claim
16 words
A photoconductive member according to claim 39, wherein halogen atoms are contained in the first layer.
Claim 45
Dependent Claim
23 words
A photoconductive member according to claim 38, wherein the germanium atoms are distributed in the first layer ununiformly in the layer thickness direction.
Claim 46
Dependent Claim
23 words
A photoconductive member according to claim 38, wherein the germanium atoms are distributed in the first layer uniformly in the layer thickness direction.
Claim 47
Dependent Claim
19 words
A photoconductive member according to claim 38, wherein a substance for controlling conductivity is contained in the first layer.
Claim 48
Dependent Claim
25 words
A photoconductive member according to claim 44, wherein the substance for controlling conductivity is an atom belonging to the group III of the periodic table.
Claim 49
Dependent Claim
25 words
A photoconductive member according to claim 44, wherein the substance for controlling conductivity is an atom belonging to the group V of the periodic table
Claim 50
Dependent Claim
19 words
A photoconductive member according to claim 39 wherein the content of hydrogen atoms is 0.01 to 40 atomic %.
Claim 51
Dependent Claim
19 words
A photoconductive member according to claim 40. wherein the content of halogen atoms is 0.01 to 40 atomic %.
Claim 52
Dependent Claim
23 words
A photoconductive member according to claim 44, wherein the content of the substance for controlling conductivity is 0.01 to 5×10 4 atomic ppm.
Claim 53
Dependent Claim
24 words
A photoconductive member according to claim 38, wherein the content of carbon atoms contained in the first layer is 0.001 to 50 atomic %.
Claim 54
Dependent Claim
19 words
A photoconductive member according to claim 38, wherein the layer thickness of the first layer is 1 to 100μ.
Claim 55
Dependent Claim
16 words
A photoconductive member according to claim 38, wherein hydrogen atoms are contained in the second layer.
Claim 56
Dependent Claim
16 words
A photoconductive member according to claim 38, wherein halogen atoms are contained in the second layer.
Claim 57
Dependent Claim
19 words
A photoconductive member according to claim 38, wherein the layer thickness of the second layer is 0.003 to 30μ.
Claim 58
Dependent Claim
22 words
A photoconductive member according to claim 38, wherein the first layer has a layer region (PN) containing a substance for controlling conductivity.
Claim 59
Dependent Claim
236 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer having a first layer region (G) comprising an amorphous material containing germanium atoms in amounts from 1 to 10×10 5 atomic ppm provided on said substrate and a second layer region (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms provided on said first layer region (G) wherein each of said first layer region (G) and said second layer region (S) contains at least one of hydrogen and halogen atoms, and a second layer comprising an amorphous material containing at least one of nitrogen atoms and oxygen atoms in a matrix of silicon atoms provided on said first layer, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 60
Dependent Claim
236 words
A photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer having a first layer region (G) comprising an amorphous material containing germanium atoms in amounts from 1 to 10×10 5 atomic ppm provided on said substrate and a second layer region (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms provided on said first layer region (G) wherein each of said first layer region (G) and said second layer region (S) contains at least one of hydrogen and halogen atoms, and a second layer comprising an amorphous material containing at least one of nitrogen atoms and oxygen atoms in a matrix of silicon atoms provided on said first layer, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum.
Claim 61
Dependent Claim
28 words
A photoconductive member according to claim 56, wherein hydrogen atoms are contained in at least one of the first layer region (G) and the second layer region (S).
Claim 62
Dependent Claim
28 words
A photoconductive member according to claim 56, wherein halogen atoms are contained in at least one of the first layer region (G) and the second layer region (S).
Claim 63
Dependent Claim
28 words
A photoconductive member according to claim 57, wherein halogen atoms are contained in at least one of the first layer region (G) and the second layer region (S).
Claim 64
Dependent Claim
20 words
A photoconductive member according to claim 56, wherein the germanium atoms are distributed in the first layer region (G) ununiformly.
Claim 65
Dependent Claim
20 words
A photoconductive member according to claim 56, wherein the germanium atoms are distributed in the first layer region (G) uniformly.
Claim 66
Dependent Claim
19 words
A photoconductive member according to claim 56, wherein a substance for controlling conductivity is contained in the first layer.
Claim 67
Dependent Claim
25 words
A photoconductive member according to claim 62, wherein the substance for controlling conductivity is an atom belonging to the group III of the periodic table.
Claim 68
Dependent Claim
25 words
A photoconductive member according to claim 62, wherein the substance for controlling conductivity is an atom belonging to the group V of the periodic table.
Claim 69
Dependent Claim
26 words
A photoconductive member according to claim 57, wherein the content of hydrogen atoms contained in the first layer region (G) is 0.01 to 40 atomic %.
Claim 70
Dependent Claim
26 words
A photoconductive member according to claim 57, wherein the content of hydrogen atoms contained in the second layer region (S) is 1 to 40 atomic %.
Claim 71
Dependent Claim
26 words
A photoconductive member according to claim 58, wherein the content of halogen atoms contained in the first layer region (G) is 0.01 to 40 atomic %.
Claim 72
Dependent Claim
26 words
A photoconductive member according to claim 58, wherein the content of halogen atoms contained in the second layer region (S) is 0.01 to 40 atomic %.
Claim 73
Dependent Claim
26 words
A photoconductive member according to claim 59, wherein the content of halogen atoms contained in the first layer region (G) is 0.01 to 40 atomic %.
Claim 74
Dependent Claim
26 words
A photoconductive member according to claim 59, wherein the content of halogen atoms contained in the second layer region (S) is 0.01 to 40 atomic %.
Claim 75
Dependent Claim
23 words
A photoconductive member according to claim 62, wherein the content of the substance for controlling conductivity is 0.01 to 5×10 4 atomic ppm.
Claim 76
Dependent Claim
24 words
A photoconductive member according to claim 56, wherein the content of carbon atoms contained in the first layer is 0.001 to 50 atomic %.
Claim 77
Dependent Claim
22 words
A photoconductive member according to claim 56, wherein the layer thickness of the first layer region (G) is 30 Å to 50μ.
Claim 78
Dependent Claim
21 words
A photoconductive member according to claim 56, wherein the layer thickness of the second layer region (S) is 0.5 to 90μ.
Claim 79
Dependent Claim
19 words
A photoconductive member according to claim 56. wherein the layer thickness of the first layer is 1 to 100μ.
Claim 80
Dependent Claim
16 words
A photoconductive member according to claim 56, wherein hydrogen atoms are contained in the second layer.
Claim 81
Dependent Claim
16 words
A photoconductive member according to claim 56, wherein halogen atoms are contained in the second layer.
Claim 82
Dependent Claim
19 words
A photoconductive member according to claim 56, wherein the layer thickness of the second layer is 0.003 to 30μ.
Claim 83
Dependent Claim
22 words
A photoconductive member according to claim 56, wherein the first layer has a layer region (PN) containing a substance for controlling conductivity.
Claim 84
Dependent Claim
47 words
A photoconductive member according to claim 15 or claim 35, wherein the layer region (Z) of the portion excluding the layer region (PN) contains a substance for controlling conductivity of the opposite polarity to that of the substance for controlling conductivity contained in said layer region (PN).
Claim 85
Dependent Claim
47 words
A photoconductive member according to claim 55 or claim 79, wherein the layer region (Z) of the portion excluding the layer region (PN) contains a substance for controlling conductivity of the opposite polarity to that of the substance for controlling conductivity contained in said layer region (PN).
Claim 86
Dependent Claim
41 words
A photoconductive member according to claim 80 or claim 81, wherein the content of the substance for controlling conductivity contained in the layer region (Z) is smaller than that of the substance for controlling conductivity contained in the layer region (PN).
Claim 87
Dependent Claim
31 words
A photoconductive member according to claim 80 or claim 81, wherein the content of the substance for controlling conductivity in the layer region (PN) is 0.01 to 5×10 4 atomic ppm.
Claim 88
Dependent Claim
30 words
A photoconductive member according to claim 80 or claim 81, wherein the content of the substance for controlling conductivity in the layer region (Z) is 0.001 to 1000 atomic ppm.
Claim 89
Dependent Claim
210 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer having photoconductivity comprising an amorphous material containing silicon atoms, germanium atoms, and at least one of hydrogen atoms and halogen atoms, and wherein the content of germanium atoms in the light receiving layer is 1 to 9.5×10 5 atomic percent based on the sum of germanium and silicon atoms, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating said photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
Claim 90
Dependent Claim
210 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer having photoconductivity comprising an amorphous material containing silicon atoms, germanium atoms, and at least one of hydrogen atoms and halogen atoms, and wherein the content of germanium atoms in the light receiving layer is 1 to 9.5×10 5 atomic percent based on the sum of germanium and silicon atoms, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating said photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
Claim 91
Dependent Claim
241 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer provided on said substrate having photoconductivity comprising an amorphous material containing silicon atoms, germanium atoms and at least one of hydrogen and halogen atoms and a second layer provided on the first layer comprising an amorphous material containing silicon atoms and at least one of nitrogen atoms and oxygen atoms, wherein the content of germanium atoms in the light receiving layer is 1 to 9.5×10 5 atomic ppm based on the sum of germanium and silicon atoms, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating the photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
Claim 92
Dependent Claim
241 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer provided on said substrate having photoconductivity comprising an amorphous material containing silicon atoms, germanium atoms and at least one of hydrogen and halogen atoms and a second layer provided on the first layer comprising an amorphous material containing silicon atoms and at least one of nitrogen atoms and oxygen atoms, wherein the content of germanium atoms in the light receiving layer is 1 to 9.5×10 5 atomic ppm based on the sum of germanium and silicon atoms, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating the photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
Claim 93
Dependent Claim
229 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer provided on said substrate having a layer constitution in which a first layer region (G) comprising an amorphous material containing germanium atoms in amounts from 1 to 10×10 5 atomic ppm, and a second layer region (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms are successively provided from the substrate side, both layer regions (G) and (S) containing at least one of hydrogen and halogen atoms, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating the photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
Claim 94
Dependent Claim
229 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer provided on said substrate having a layer constitution in which a first layer region (G) comprising an amorphous material containing germanium atoms in amounts from 1 to 10×10 5 atomic ppm, and a second layer region (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms are successively provided from the substrate side, both layer regions (G) and (S) containing at least one of hydrogen and halogen atoms, said light receiving layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating the photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
Claim 95
Dependent Claim
254 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer having a first layer region (G) comprising an amorphous material containing germanium atoms in amounts from 1 to 10×10 5 atomic ppm provided on said substrate and a second layer region (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms provided on said first layer region (G), both said layer regions (S) and (G) containing at least one of hydrogen and halogen atoms, and a second layer comprising an amorphous material containing silicon atoms and at least one of nitrogen atoms and oxygen atoms provided on said first layer, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating the photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
Claim 96
Dependent Claim
254 words
An electrophotographic process which comprises: (a) applying a charging treatment to a photoconductive member comprising a substrate for photoconductive member and a light receiving layer comprising a first layer having a first layer region (G) comprising an amorphous material containing germanium atoms in amounts from 1 to 10×10 5 atomic ppm provided on said substrate and a second layer region (S) exhibiting photoconductivity comprising an amorphous material containing silicon atoms provided on said first layer region (G), both said layer regions (S) and (G) containing at least one of hydrogen and halogen atoms, and a second layer comprising an amorphous material containing silicon atoms and at least one of nitrogen atoms and oxygen atoms provided on said first layer, said first layer containing carbon atoms and having a first layer region, a third layer region and a second layer region with the carbon atom content in the layer thickness direction of C(1), C(3) and C(2), respectively, in the order from the substrate side with the proviso that when C(3) cannot solely be the maximum and either one of C(1) and C(2) is zero, the other two are not zero and not equal to each other, or when C(3) is zero, the other two are not zero, or when none of C(1), C(2) and C(3) is zero, the three of C(1), C(2) and C(3) cannot be equal at the same time and C(3) cannot solely be the maximum; and (b) irradiating the photoconductive member with an electromagnetic wave carrying information, thereby forming an electrostatic image.
References Cited (Backward Citations)
US4465750A
Cited
US4491626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |