US4423133A
Expired / Lapsed
US
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Photoconductive member of amorphous silicon
Assignee: Canon Inc
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Filing: 1982-11-10
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Granted: 1983-12-27
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Expires: 2002-11-10
Abstract
Abstract A photoconductive layer comprises a support and an amorphous layer. The amorphous layer is photoconductive, comprises silicon as matrix and hydrogen and/or halogen, and has a layer region containing group III atoms which is distributed such that the distribution is continuous in the direction of layer thickness and said atoms are more enriched on the aforesaid support side than on the opposite side to the aforesaid support side in said layer.
Inventors
- 👤 Junichiro Kanbe
- 👤 Shigeru Shirai
- 👤 Kyosuke Ogawa
- 👤 Keishi Saitoh
- 👤 Yoichi Osato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
H; H10; H10F; H10F71/00; H10F71/10; H10F71/103; H10F30/00; H10F30/10; H10F30/15; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02P; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
104 words
A photoconductive member which comprises 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 member selected from hydrogen atoms and halogen atoms as constituent atoms, said amorphous layer having a layer region which contains atoms belonging to the group III of the periodic table as constituent atoms in such a distribution that the distribution is continuous in the direction of layer thickness and said atoms are more enriched on the aforesaid support side than on the opposite side to the aforesaid support side in said layer.
Claim 2
Dependent Claim
104 words
A photoconductive member which comprises 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 member selected from hydrogen atoms and halogen atoms as constituent atoms, said amorphous layer having a layer region which contains atoms belonging to the group III of the periodic table as constituent atoms in such a distribution that the distribution is continuous in the direction of layer thickness and said atoms are more enriched on the aforesaid support side than on the opposite side to the aforesaid support side in said layer.
Claim 3
Dependent Claim
121 words
A photoconductive member which comprises a support for a photoconductive member and an amorphous layer having photoconductive constituted of an amorphous material comprising silicon atoms as a matrix and at least one member selected from hydrogen atoms and halogen atoms as constituent atoms, said amorphous layer having a first layer region which contains oxygen atoms as constituent atoms in a substantially uniform distribution which is continuous in the direction of layer thickness and a second layer region which contains atoms belonging to the group III of the periodic table as constituent atoms in such a distribution that the distribution is continuous in the direction of layer thickness and said atoms are more enriched on the aforesaid support side in said layer.
Claim 4
Dependent Claim
121 words
A photoconductive member which comprises a support for a photoconductive member and an amorphous layer having photoconductive constituted of an amorphous material comprising silicon atoms as a matrix and at least one member selected from hydrogen atoms and halogen atoms as constituent atoms, said amorphous layer having a first layer region which contains oxygen atoms as constituent atoms in a substantially uniform distribution which is continuous in the direction of layer thickness and a second layer region which contains atoms belonging to the group III of the periodic table as constituent atoms in such a distribution that the distribution is continuous in the direction of layer thickness and said atoms are more enriched on the aforesaid support side in said layer.
Claim 5
Dependent Claim
33 words
A photoconductive member according to claim 1, wherein the layer region containing the atoms belonging to the group III of the periodic table occupies substantially the entire layer region of the amorphous layer.
Claim 6
Dependent Claim
40 words
A photoconductive member according to claim 1, wherein the layer region containing the atoms belonging to the group III of the periodic table is provided as the end portion layer region of amorphous layer on the side of the support.
Claim 7
Dependent Claim
20 words
A photoconductive member according to claim 2, wherein said first region exists internally below the surface of said amorphous layer.
Claim 8
Dependent Claim
23 words
A photoconductive member according to claim 2, wherein the first layer region and the second layer region share at least a part thereof.
Claim 9
Dependent Claim
22 words
A photoconductive member according to claim 2, wherein the first layer region occupies substantially the entire layer region of the amorphous layer.
Claim 10
Dependent Claim
19 words
A photoconductive member according to claim 2, wherein the first layer region and the second layer retion are identical.
Claim 11
Dependent Claim
18 words
A photoconductive member according to claim 1, wherein an upper barrier layer is provided on the amorphous layer.
Claim 12
Dependent Claim
41 words
A photoconductive member according to claim 1, wherein there is provided an upper layer constituted of an amorphous material containing at least one member selected from carbon atoms and nitrogen atoms in a matrix of silicon atoms on the amorphous layer.
Claim 13
Dependent Claim
27 words
A photoconductive member according to claim 10, wherein the amorphous material further contains at least one member selected from hydrogen atoms and halogen atoms as constituent atoms.
Claim 14
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein hydrogen atoms are contained in the amorphous layer.
Claim 15
Dependent Claim
19 words
A photoconductive member according to claim 12, wherein the content of hydrogen atoms is 1 to 40 atomic %.
Claim 16
Dependent Claim
16 words
A photoconductive member according to claim 1, wherein halogen atoms are contained in the amorphous layer.
Claim 17
Dependent Claim
19 words
A photoconductive member according to claim 14, wherein the content of halogen atoms is 1 to 40 atomic %.
Claim 18
Dependent Claim
19 words
A photoconductive member according to claim 1, wherein hydrogen atoms and halogen atoms are contained in the amorphous layer.
Claim 19
Dependent Claim
25 words
A photoconductive member according to claim 16, wherein the sum of the contents of hydrogen atoms and halogen atoms is 1 to 40 atomic %.
Claim 20
Dependent Claim
18 words
A photoconductive member according to claim 2, wherein an upper barrier layer is provided on the amorphous layer.
Claim 21
Dependent Claim
41 words
A photoconductive member according to claim 2, wherein there is provided an upper layer constituted of an amorphous material containing at least one member selected from carbon atoms and nitrogen atoms in a matrix of silicon atoms on the amorphous layer.
Claim 22
Dependent Claim
27 words
A photoconductive member according to claim 19, wherein the amorphous material further contains at least one member selected from hydrogen atoms and halogen atoms as constituent atoms.
Claim 23
Dependent Claim
16 words
A photoconductive member according to claim 2, wherein hydrogen atoms are contained in the amorphous layer.
Claim 24
Dependent Claim
19 words
A photoconductive member according to claim 21, wherein the content of hydrogen atoms is 1 to 40 atomic %.
Claim 25
Dependent Claim
16 words
A photoconductive member according to claim 2, wherein halogen atoms are contained in the amorphous layer.
Claim 26
Dependent Claim
19 words
A photoconductive member according to claim 23, wherein the content of halogen atoms is 1 to 40 atomic %.
Claim 27
Dependent Claim
19 words
A photoconductive member according to claim 2, wherein hydrogen atoms and halogen atoms are contained in the amorphous layer.
Claim 28
Dependent Claim
25 words
A photoconductive member according to claim 25, wherein the sum of the contents of hydrogen atoms and halogen atoms is 1 to 40 atomic %.
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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) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |