US4460670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive member with α-Si and C, N or O and dopant
Assignee: Canon Inc
•
Filing: 1982-11-19
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Granted: 1984-07-17
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Expires: 2002-11-19
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 at least one kind of atoms selected from the group consisting of oxygen atoms, carbon atoms and nitrogen atoms as constituent atoms in a distribution which is ununiform and continuous in the direction of layer thickness and a second layer region containing atoms of an element belonging to the group III of the periodic table as constituent atoms in a distribution which is ununiform and continuous in the direction of layer thickness.
Inventors
- 👤 Kyosuke Ogawa
- 👤 Shigeru Shirai
- 👤 Junichiro Kanbe
- 👤 Keishi Saitoh
- 👤 Yoichi Osato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:04
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221; G03G5/08228; H; H10; H10F; H10F30/00; H10F30/10; H10F30/15
Claims Analysis
Total Claims: 53
Claim 1
Independent Claim
147 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 at least one kind of atoms selected from the group consisting of oxygen atoms, carbon atoms and nitrogen atoms as constituent atoms in a distribution which is ununiform and continuous in the direction of layer thickness, the ununiform distribution being concentrated at the support side and decreasing towards the surface side of the amorphous layer and uniform and continuous substantially parallel to the surface of the amorphous layer and a second layer region containing atoms belonging to the group III of the periodic table as constituent atoms in a distribution which is ununiform and continuous in the direction of layer thickness.
Claim 2
Dependent Claim
147 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 at least one kind of atoms selected from the group consisting of oxygen atoms, carbon atoms and nitrogen atoms as constituent atoms in a distribution which is ununiform and continuous in the direction of layer thickness, the ununiform distribution being concentrated at the support side and decreasing towards the surface side of the amorphous layer and uniform and continuous substantially parallel to the surface of the amorphous layer and a second layer region containing atoms belonging to the group III of the periodic table as constituent atoms in a distribution which is ununiform and continuous in the direction of layer thickness.
Claim 3
Dependent Claim
23 words
A photoconductive member according to claim 1, wherein the first layer region and the second layer region share at least a part thereof.
Claim 4
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 5
Dependent Claim
18 words
A photoconductive member according to claim 1, wherein said second region exists internally within said first layer region.
Claim 6
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 7
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein oxygen atoms are contained in the first layer region.
Claim 8
Dependent Claim
36 words
A photoconductive member according to claim 6, wherein the distribution of oxygen atoms in the first layer is such that it is decreased toward the side opposite to the side on which the support is provided.
Claim 9
Dependent Claim
37 words
A photoconductive member according to claim 6, 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 10
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein nitrogen atoms are contained in the first layer region.
Claim 11
Dependent Claim
36 words
A photoconductive member according to claim 9, wherein the distribution of nitrogen atoms in the first layer is such that it is decreased toward the side opposite to the side on which the support is provided.
Claim 12
Dependent Claim
37 words
A photoconductive member according to claim 9, 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 13
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein carbon atoms are contained in the first layer region.
Claim 14
Dependent Claim
36 words
A photoconductive member according to claim 12, wherein the distribution of carbon atoms in the first layer is such that it is decreased toward the side opposite to the side on which the support is provided.
Claim 15
Dependent Claim
37 words
A photoconductive member according to claim 12, 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 16
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 17
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 18
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 19
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 20
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein hydrogen atoms are contained in the amorphous layer.
Claim 21
Dependent Claim
19 words
A photoconductive member according to claim 19, wherein the content of hydrogen atoms is 1 to 40 atomic %.
Claim 22
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein halogen atoms are contained in the amorphous layer.
Claim 23
Dependent Claim
19 words
A photoconductive member according to claim 21, wherein the content of halogen atoms is 1 to 40 atomic %.
Claim 24
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein hydrogen atoms and halogen atoms are contained in the amorphous layer.
Claim 25
Dependent Claim
25 words
A photoconductive member according to claim 23, wherein the sum of the contents of hydrogen atoms and halogen atoms is 1 to 40 atomic %.
Claim 26
Dependent Claim
17 words
A photoconductive member according to claim 1, further having a surface barrier layer on the amorphous layer.
Claim 27
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 28
Dependent Claim
19 words
A photoconductive member according to claim 26, wherein the amorphous material constituting the surface layer further contains hydrogen atoms.
Claim 29
Dependent Claim
19 words
A photoconductive member according to claim 26, wherein the amorphous material constituting the surface layer further contains halogen atoms.
Claim 30
Dependent Claim
22 words
A photoconductive member according to claim 26, wherein the amorphous material constituting the surface layer further contains hydrogen atoms and halogen atoms.
Claim 31
Dependent Claim
19 words
A photoconductive member according to claim 1, further having a surface layer constituted of an electrically insulating metal oxide.
Claim 32
Dependent Claim
19 words
A photoconductive member according to claim 1, further having a surface layer constituted of an electrically insulating organic compound.
Claim 33
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 34
Dependent Claim
36 words
A photoconductive member according to claim 1, wherein the atoms belonging to the group III of the periodic table are contained in the second layer region in an amount of 0.01 to 5×10 4 atomic ppm.
Claim 35
Dependent Claim
35 words
A photoconductive member according to claim 1, wherein the atoms belonging to the group III of the periodic table are contained in the second layer region in an amount of 1 to 100 atomic ppm.
Claim 36
Dependent Claim
27 words
A photoconductive member according to claim 1, wherein the selected atoms are contained in the first layer region in an amount of 0.001 to 30 atomic %.
Claim 37
Dependent Claim
27 words
A photoconductive member according to claim 1, wherein the selected atoms are contained in the first layer region in an amount of 0.01 to 20 atomic %.
Claim 38
Dependent Claim
55 words
A photoconductive member according to claim 1, wherein the distribution concentration 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 point (tB) of the support side ranges 0.1 to 8×10 4 atomic ppm based on silicon atoms.
Claim 39
Dependent Claim
54 words
A photoconductive member according to claim 1, wherein the distribution concentration 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 point (tB) of the support side ranges 0.1 to 1000 atomic ppm based on silicon atoms.
Claim 40
Dependent Claim
42 words
A photoconductive member according to claim 1, wherein the distribution concentration of the selected atoms contained in the first layer region in the direction of layer thickness at the end point (tB) of the support side ranges 0.01 to 35 atomic %.
Claim 41
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 42
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 43
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 44
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 45
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 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
26 words
A photoconductive member according to claim 45, wherein 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 25, wherein the thickness of the surface barrier layer ranges 30 Åto 5μ.
Claim 53
Dependent Claim
18 words
A photoconductive member according to claim 26, wherein the thickness of the surface layer ranges 30 Åto 5μ.
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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) | 1987-07-17 | 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 |