US4536460A
Expired / Lapsed
US
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Photoconductive member
Assignee: Canon Inc
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Filing: 1982-10-28
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Granted: 1985-08-20
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Expires: 2002-10-28
Abstract
Abstract A photoconductive member comprising a support and a silicon amorphous layer, and the silicon amorphous layer has a first layer region containing at least one of oxygen, nitrogen and carbon and a second layer region containing an element of Group III. The first layer exists internally within the amorphous layer below its surface.
Inventors
- 👤 Junichiro Kanbe
- 👤 Shigeru Shirai
- 👤 Teruo Misumi
- 👤 Keishi Saitoh
- 👤 Yoichi Osato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:57
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221; H; H10; H10F; H10F30/00; H10F30/10; H10F30/15
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
117 words
A photoconductive member comprising a support for a photoconductive member and an amorphous layer having photoconductivity constituted of an amorphous material comprising silicon atoms as a matrix, characterized in that said amorphous layer has a first layer region containing at least one kind of atoms selected from the group consisting of oxygen atoms, nitrogen atoms and carbon atoms as constituent atoms and a second layer region containing atoms of an element belonging to the group III of the periodic table as constituent atoms, said first layer region existing internally within said amorphous layer below the surface of said amorphous layer wherein the amorphous layer contains at least one of hydrogen atoms and halogen atoms as constituent atoms.
Claim 2
Dependent Claim
117 words
A photoconductive member comprising a support for a photoconductive member and an amorphous layer having photoconductivity constituted of an amorphous material comprising silicon atoms as a matrix, characterized in that said amorphous layer has a first layer region containing at least one kind of atoms selected from the group consisting of oxygen atoms, nitrogen atoms and carbon atoms as constituent atoms and a second layer region containing atoms of an element belonging to the group III of the periodic table as constituent atoms, said first layer region existing internally within said amorphous layer below the surface of said amorphous layer wherein the amorphous layer contains at least one of hydrogen atoms and halogen atoms as constituent atoms.
Claim 3
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein the amorphous layer contains hydrogen atoms as constituent atoms.
Claim 4
Dependent Claim
23 words
A photoconductive member according to claim 2, wherein the amorphous layer contains hydrogen atoms in an amount of 1 to 40 atomic %.
Claim 5
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein the amorphous layer contains halogen atoms as constituent atoms.
Claim 6
Dependent Claim
23 words
A photoconductive member according to claim 4, wherein the amorphous layer contains halogen atoms in an amount of 1 to 40 atomic %.
Claim 7
Dependent Claim
14 words
A photoconductive member according to claim 4, wherein the halogen atoms are fluorine atoms.
Claim 8
Dependent Claim
27 words
A photoconductive member according to claim 1, wherein the first layer region and the second layer region has at least a part thereof common to each other.
Claim 9
Dependent Claim
22 words
A photoconductive member according to claim 1, wherein the first layer region and the second layer region are substantially the identical region.
Claim 10
Dependent Claim
15 words
A photoconductive member according to claim 1, wherein the first layer region contains oxygen atoms.
Claim 11
Dependent Claim
27 words
A photoconductive member according to claim 9, wherein the oxygen atoms are present in an amount of 0.01 to 20 atomic % in the first layer region.
Claim 12
Dependent Claim
15 words
A photoconductive member according to claim 1, wherein the first layer region contains nitrogen atoms.
Claim 13
Dependent Claim
27 words
A photoconductive member according to claim 11, wherein the nitrogen atoms are present in an amount of 0.01 to 20 atomic % in the first layer region.
Claim 14
Dependent Claim
15 words
A photoconductive member according to claim 1, wherein the first layer region contains carbon atoms.
Claim 15
Dependent Claim
27 words
A photoconductive member according to claim 13, wherein the carbon atoms are present in an amount of 0.01 to 20 atomic % in the first layer region.
Claim 16
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein the first layer region has a thickness of 3 to 100μ.
Claim 17
Dependent Claim
35 words
A photoconductive member according to claim 1, wherein the layer region not containing the selected atoms in the first layer region which exists on the first layer region has a thickness of 0.02 to 10μ.
Claim 18
Dependent Claim
158 words
A photoconductive member comprising a support for a photoconductive member and an amorphous layer having photoconductivity constituted of an amorphous material comprising silicon atoms as a matrix, characterized in that said amorphous layer has, in the order from the support side, a first layer region containing at least one kind of atoms selected from the group consisting of oxygen atoms, nitrogen atoms and carbon atoms as constituent atoms and an upper layer region provided in direct contact with said first layer region and containing no atom selected in said first layer region, and a second layer region containing atoms of an element belonging to the group III of the periodic table as constituent atoms is provided such that at least a part of the second layer region overlaps at least one of said first layer region and said upper layer region wherein the amorphous layer contains at least one of hydrogen atoms and halogen atoms as constituent atoms.
Claim 19
Dependent Claim
158 words
A photoconductive member comprising a support for a photoconductive member and an amorphous layer having photoconductivity constituted of an amorphous material comprising silicon atoms as a matrix, characterized in that said amorphous layer has, in the order from the support side, a first layer region containing at least one kind of atoms selected from the group consisting of oxygen atoms, nitrogen atoms and carbon atoms as constituent atoms and an upper layer region provided in direct contact with said first layer region and containing no atom selected in said first layer region, and a second layer region containing atoms of an element belonging to the group III of the periodic table as constituent atoms is provided such that at least a part of the second layer region overlaps at least one of said first layer region and said upper layer region wherein the amorphous layer contains at least one of hydrogen atoms and halogen atoms as constituent atoms.
Claim 20
Dependent Claim
17 words
A photoconductive member according to claim 17, wherein the amorphous layer contains hydrogen atoms as constituent atoms.
Claim 21
Dependent Claim
23 words
A photoconductive member according to claim 18, wherein the amorphous layer contains hydrogen atoms in an amount of 1 to 40 atomic %.
Claim 22
Dependent Claim
17 words
A photoconductive member according to claim 17, wherein the amorphous layer contains halogen atoms as constituent atoms.
Claim 23
Dependent Claim
23 words
A photoconductive member according to claim 20, wherein the amorphous layer contains halogen atoms in an amount of 1 to 40 atomic %.
Claim 24
Dependent Claim
14 words
A photoconductive member according to claim 20, wherein the halogen atoms are fluorine atoms.
Claim 25
Dependent Claim
15 words
A photoconductive member according to claim 17, wherein the first layer region contains oxygen atoms.
Claim 26
Dependent Claim
27 words
A photoconductive member according to claim 23, wherein the oxygen atoms are present in an amount of 0.01 to 20 atomic % in the first layer region.
Claim 27
Dependent Claim
15 words
A photoconductive member according to claim 17, wherein the first layer region contains nitrogen atoms.
Claim 28
Dependent Claim
27 words
A photoconductive member according to claim 25, wherein the nitrogen atoms are present in an amount of 0.01 to 20 atomic % in the first layer region.
Claim 29
Dependent Claim
15 words
A photoconductive member according to claim 17, wherein the first layer region contains carbon atoms.
Claim 30
Dependent Claim
27 words
A photoconductive member according to claim 27, wherein the carbon atoms are present in an amount of 0.01 to 20 atomic % in the first layer region.
Claim 31
Dependent Claim
19 words
A photoconductive member according to claim 17, wherein the first layer region has a thickness of 3 to 100μ.
Claim 32
Dependent Claim
25 words
A photoconductive member according to claim 17, wherein the upper layer region existing on the first layer region has a thickness of 0.02 to 10μ.
Claim 33
Dependent Claim
37 words
A photoconductive member according to claim 1 or 17, wherein the atoms of an element belonging to the group III of the periodic table are selected from the group consisting of B, Al, Ga, In and Tl.
Claim 34
Dependent Claim
38 words
A photoconductive member according to claim 1 or 17, wherein the content of the atoms of an element belonging to the group III of the periodic table contained in the second layer region is 0.01-5×10 4 atomic ppm.
Claim 35
Dependent Claim
37 words
A photoconductive member according to claim 1 or 17, wherein the content of the atoms of an element belonging to the group III of the periodic table contained in the second layer region is 1-100 atomic ppm.
Claim 36
Dependent Claim
20 words
A photoconductive member according to claim 1 or 17, wherein the layer thickness of the first layer region is 3-100μ.
Claim 37
Dependent Claim
36 words
A photoconductive member according to claim 1 or 17, wherein the amorphous layer has a layer region containing no atom of an element belonging to the group III of the periodic table in the upper portion.
Claim 38
Dependent Claim
18 words
A photoconductive member according to claim 1 or 17, wherein the support is in a belt like form.
Claim 39
Dependent Claim
17 words
A photoconductive member according to claim 1 or 17, wherein the support is in a cylindrical form.
Claim 40
Dependent Claim
23 words
A photoconductive member according to claim 1 or 17, wherein the support is a synthetic resin sheet provided with electroconductivity at the surface.
Claim 41
Dependent Claim
21 words
A photoconductive member according to claim 1 or 17, comprising further a barrier layer between the support and the amorphous layer.
Claim 42
Dependent Claim
25 words
A photoconductive member according to claim 1 or 17, comprising further an intermediate layer comprising a metal oxide between the support and the amorphous layer.
Claim 43
Dependent Claim
17 words
A photoconductive member according to claim 40, wherein the metal oxide is Al 2 O 3 .
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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) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |