US4460669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive member with α-Si and C, U or D and dopant
Assignee: Canon Inc
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Filing: 1982-11-22
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Granted: 1984-07-17
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Expires: 2002-11-22
Abstract
Abstract A photoconductive member comprises a support for a photoconductive member and an amorphous layer having photoconductivity constituted of an amorphous material comprising silicon atoms as a matrix, said amorphous layer having a first layer region containing as the constituent atom at least one kind of atoms selected from the group consisting of oxygen atoms, carbon atoms and nitrogen 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 ununiform and continuous in the direction of layer thickness, said first layer region existing internally below the surface of said amorphous layer.
Inventors
- 👤 Kyosuke Ogawa
- 👤 Shigeru Shirai
- 👤 Junichiro Kanbe
- 👤 Keishi Saitoh
- 👤 Yoichi Osato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:42
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/10; H10F30/15; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08235; G03G5/08242
Claims Analysis
Total Claims: 53
Claim 1
Independent Claim
174 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 and at least one of hydrogen atoms and halogen atoms, said amorphous layer having a first layer region containing as the constituent atom at least one kind of atoms selected from the group consisting of oxygen atoms, carbon atoms and nitrogen atoms in a distribution state which is ununiform and continuous in the direction of layer thickness wherein the ununiform distribution is concentrated at the support side and decreases towards the side opposite to the side at which the support is provided and wherein the distribution state is uniform in the direction substantially parallel to surface of said amorphous layer 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 ununiform and continuous in the direction of layer thickness, said first layer region existing internally below the surface of said amorphous layer.
Claim 2
Dependent Claim
174 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 and at least one of hydrogen atoms and halogen atoms, said amorphous layer having a first layer region containing as the constituent atom at least one kind of atoms selected from the group consisting of oxygen atoms, carbon atoms and nitrogen atoms in a distribution state which is ununiform and continuous in the direction of layer thickness wherein the ununiform distribution is concentrated at the support side and decreases towards the side opposite to the side at which the support is provided and wherein the distribution state is uniform in the direction substantially parallel to surface of said amorphous layer 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 ununiform and continuous in the direction of layer thickness, said first layer region existing internally below the surface of said amorphous layer.
Claim 3
Dependent Claim
23 words
A photoconductive member according to claim 1, wherein the first layer region and the second layer region are substantially the same layer region.
Claim 4
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein said second layer region exists internally within said first layer region.
Claim 5
Dependent Claim
22 words
A photoconductive member according to claim 1, wherein the second layer region occupies substantially the entire layer region of the amorphous layer.
Claim 6
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein oxygen atoms are contained in the first layer region.
Claim 7
Dependent Claim
36 words
A photoconductive member according to claim 5, wherein the distribution of oxygen atoms in the first layer is such that it is decreased toward the side opposite to the side at which the support is provided.
Claim 8
Dependent Claim
37 words
A photoconductive member according to claim 5, wherein the distribution of oxygen atoms in the first layer is such that it has a distribution region with higher concentration of oxygen atoms on the side of the support.
Claim 9
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein nitrogen atoms are contained in the first layer region.
Claim 10
Dependent Claim
36 words
A photoconductive member according to claim 8, wherein the distribution of nitrogen atoms in the first layer is such that it is decreased toward the side opposite to the side at which the support is provided.
Claim 11
Dependent Claim
37 words
A photoconductive member according to claim 8, wherein the distribution of nitrogen atoms in the first layer is such that it has a distribution region with higher concentration of nitrogen atoms on the side of the support.
Claim 12
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein carbon atoms are contained in the first layer region.
Claim 13
Dependent Claim
36 words
A photoconductive member according to claim 11, wherein the distribution of carbon atoms in the first layer is such that it is decreased toward the side opposite to the side at which the support is provided.
Claim 14
Dependent Claim
37 words
A photoconductive member according to claim 11, wherein the distribution of carbon atoms in the first layer is such that it has a distribution region with higher concentration of carbon atoms on the side of the support.
Claim 15
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein oxygen atoms and nitrogen atoms are contained in the first layer region.
Claim 16
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein oxygen atoms and carbon atoms are contained in the first layer region.
Claim 17
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein carbon atoms and nitrogen atoms are contained in the first layer region.
Claim 18
Dependent Claim
22 words
A photoconductive member according to claim 1, wherein oxygen atoms, nitrogen atoms and carbon atoms are contained in the first layer region.
Claim 19
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein hydrogen atoms are contained in the amorphous layer.
Claim 20
Dependent Claim
19 words
A photoconductive member according to claim 18, wherein the content of hydrogen atoms is 1 to 40 atomic %.
Claim 21
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein halogen atoms are contained in the amorphous layer.
Claim 22
Dependent Claim
19 words
A photoconductive member according to claim 20, wherein the content of halogen atoms is 1 to 40 atomic %.
Claim 23
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein hydrogen atoms and halogen atoms are contained in the amorphous layer.
Claim 24
Dependent Claim
25 words
A photoconductive member according to claim 22, wherein the sum of the contents of hydrogen atoms and halogen atoms is 1 to 40 atomic %.
Claim 25
Dependent Claim
17 words
A photoconductive member according to claim 1, further having a surface barrier layer on the amorphous layer.
Claim 26
Dependent Claim
42 words
A photoconductive member according to claim 1, wherein there is further provided on the amorphous layer a surface layer comprising an amorphous material containing silicon atoms as matrix and at least one kind of atoms selected from carbon atoms and nitrogen atoms.
Claim 27
Dependent Claim
19 words
A photoconductive member according to claim 25, wherein the amorphous material constituting the surface layer further contains hydrogen atoms.
Claim 28
Dependent Claim
19 words
A photoconductive member according to claim 25, wherein the amorphous material constituting the surface layer further contains halogen atoms.
Claim 29
Dependent Claim
22 words
A photoconductive member according to claim 25, wherein the amorphous material constituting the surface layer further contains hydrogen atoms and halogen atoms.
Claim 30
Dependent Claim
19 words
A photoconductive member according to claim 1, further having a surface layer constituted of an electrically insulating metal oxide.
Claim 31
Dependent Claim
19 words
A photoconductive member according to claim 1, further having a surface layer constituted of an electrically insulating organic compound.
Claim 32
Dependent Claim
32 words
A photoconductive member according to claim 1, wherein the atoms belonging to the group III of the periodic table are selected from the group consisting of B, Al, Ga, In and Tl.
Claim 33
Dependent Claim
32 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 0.01-5×10 4 atomic ppm.
Claim 34
Dependent Claim
30 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 1-100 ppm.
Claim 35
Dependent Claim
24 words
A photoconductive member according to claim 1, wherein the content of the selected atoms contained in the first layer region is 0.001-30 atomic %.
Claim 36
Dependent Claim
24 words
A photoconductive member according to claim 1, wherein the content of the selected atoms contained in the first layer region is 0.01-20 atomic %.
Claim 37
Dependent Claim
57 words
A photoconductive member according to claim 1, wherein the distribution concentration C(III) of the atoms belonging to the group III of the periodic table contained in the second layer region in the direction of layer thickness at the end portion of said layer region on the support side is 0.1-8×10 4 atomic ppm based on silicon atoms.
Claim 38
Dependent Claim
56 words
A photoconductive member according to claim 1, wherein the distribution concentration C(III) of the atoms belonging to the group III of the periodic table contained in the second layer region in the direction of layer thickness at the end portion of said layer region on the support side is 0.1-1000 atomic ppm based on silicon atoms.
Claim 39
Dependent Claim
45 words
A photoconductive member according to claim 1, wherein the distribution concentration C 1 of the selected atoms contained in the first layer region in the direction of layer thickness at the end portion of said layer region on the support side is 0.01-35 atomic %.
Claim 40
Dependent Claim
45 words
A photoconductive member according to claim 1, wherein the distribution concentration C 1 of the selected atoms contained in the first layer region in the direction of layer thickness at the end portion of said layer region on the support side is 0.01-30 atomic %.
Claim 41
Dependent Claim
47 words
A photoconductive member according to claim 1, wherein the distribution concentration line of the atoms belonging to the group III of the periodic table contained in the second layer region has a portion in which the concentration is continuously decreased toward the surface of said amorphous layer.
Claim 42
Dependent Claim
45 words
A photoconductive member according to claim 1, wherein the distribution concentration line of the selected atoms contained in the first layer region in the direction of layer thickness has a portion in which the concentration is continuously decreased toward the surface of said amorphous layer.
Claim 43
Dependent Claim
43 words
A photoconductive member according to claim 1, wherein the distribution concentration line of the atoms belonging to the group III of the periodic table contained in the second layer region in the direction of layer thickness has an even portion and uneven portion.
Claim 44
Dependent Claim
35 words
A photoconductive member according to claim 1, wherein the distribution concentration line of the selected atoms contained in the first layer region in the direction of layer thickness has an even portion and uneven portion.
Claim 45
Dependent Claim
29 words
A photoconductive member according to claim 1, wherein the layer thickness of the layer region not containing the selected atom contained in the first layer region is 100 Å-10μ.
Claim 46
Dependent Claim
39 words
A photoconductive member according to claim 1, wherein the first layer region has a region in which the selected atoms contained in said layer region is contained in a high concentration, at the end region on the support side.
Claim 47
Dependent Claim
25 words
A photoconductive member according to claim 45, the layer thickness of the layer region containing the selected atoms in a high concentration is 50 Å-5μ.
Claim 48
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein the layer thickness of the amorphous layer is 3-100μ.
Claim 49
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein the support is in a belt like form.
Claim 50
Dependent Claim
15 words
A photoconductive member according to claim 1, wherein the support is in a cylindrical form.
Claim 51
Dependent Claim
22 words
A photoconductive member according to claim 1, wherein the support is provided with a synthetic resin film having electroconductivity at the surface.
Claim 52
Dependent Claim
19 words
A photoconductive member according to claim 24, wherein the layer thickness of the surface barrier layer is 30 Å-5μ.
Claim 53
Dependent Claim
18 words
A photoconductive member according to claim 25, wherein the layer thickness of the surface layer is 30 Å-5μ.
References Cited (Backward Citations)
US3210184A
Cited
US4265991A
Cited
US4217374A
Cited
US4226898A
Cited
US4289822A
Cited
US4239554A
Cited
US4251289A
Cited
US4253882A
Cited
GB2083701A
Cited
US4414319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-17 | 1988-01-16 | 1988-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-17 | 1992-01-16 | 1992-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-17 | 1996-01-16 | 1996-07-17 | $7700.00 | Window Closed / Lapsed |