US4529679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive member
Assignee: Canon Inc
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Filing: 1983-12-22
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Granted: 1985-07-16
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Expires: 2003-12-22
Abstract
Abstract A photoconductive member comprises a substrate and a light receiving layer having photoconductive provided on said support, comprising silicon atoms as a matrix and at least halogen atoms as constituent atoms said light receiving layer having a depth profile with respect to the layer thickness direction such that the concentration of halogen atoms contained therein is increased from the said substrate side toward the surface side of the photoconductive member.
Inventors
- 👤 Kyosuke Ogawa
- 👤 Shigeru Shirai
- 👤 Keishi Saitoh
- 👤 Teruo Misumi
- 👤 Junichiro Kanbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221; G03G5/08228; G03G5/08235; G03G5/08242
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
70 words
A photoconductive member comprising a substrate and a light receiving layer having photoconductivity provided on said support and comprising silicon atoms as a matrix and at least halogen atoms as constituent atoms, said light receiving layer having a depth profile with respect to the layer thickness direction such that the concentration of halogen atoms contained therein is increased from said substrate side toward the surface side of the photoconductive member.
Claim 2
Dependent Claim
70 words
A photoconductive member comprising a substrate and a light receiving layer having photoconductivity provided on said support and comprising silicon atoms as a matrix and at least halogen atoms as constituent atoms, said light receiving layer having a depth profile with respect to the layer thickness direction such that the concentration of halogen atoms contained therein is increased from said substrate side toward the surface side of the photoconductive member.
Claim 3
Dependent Claim
29 words
A photoconductive member according to claim 1, wherein the concentration of halogen atoms in the light receiving layer is zero from the substrate side to the central portion thereof.
Claim 4
Dependent Claim
28 words
A photoconductive member according to claim 1, wherein the portion having the maximum halogen atom concentration in the light receiving layer is a single spot of the surface.
Claim 5
Dependent Claim
24 words
A photoconductive member according to claim 1, wherein the portion having the maximum halogen atom concentration in the light receiving layer has a range.
Claim 6
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the halogen atom concentration in the light receiving layer is increased continuously.
Claim 7
Dependent Claim
20 words
A photoconductive member according to claim 1, wherein the halogen atom concentration in the light receiving layer is increased stepwise.
Claim 8
Dependent Claim
17 words
A photoconductive member according to claim 1, wherein hydrogen atoms are contained in the light receiving layer.
Claim 9
Dependent Claim
33 words
A photoconductive member according to claim 1, wherein the concentration of halogen atoms in the light receiving layer is within the range of 0.01 to 40 atomic % at the maximum portion thereof.
Claim 10
Dependent Claim
25 words
A photoconductive member according to claim 1, wherein the atoms of the group III of the periodic table are contained in the light receiving layer.
Claim 11
Dependent Claim
25 words
A photoconductive member according to claim 1, wherein the atoms of the group V of the periodic table are contained in the light receiving layer.
Claim 12
Dependent Claim
30 words
A photoconductive member according to claim 1, wherein both the hydrogen atoms and the atoms of the group III of the periodic table are contained in the light receiving layer.
Claim 13
Dependent Claim
30 words
A photoconductive member according to claim 1, wherein both the hydrogen atoms and the atoms of the group V of the periodic table are contained in the light receiving layer.
Claim 14
Dependent Claim
26 words
A photoconductive member according to claim 1, wherein at least one of oxygen atoms, carbon atoms and germanium atoms are contained in the light receiving layer.
Claim 15
Dependent Claim
30 words
A photoconductive member according to claim 7, wherein either the group III atoms or the group V atoms of the periodic table is further contained in the light receiving layer.
Claim 16
Dependent Claim
26 words
A photoconductive member according to claim 14, wherein at least one of oxygen atoms, carbom atoms and germanium atoms are contained in the light receiving layer.
Claim 17
Dependent Claim
45 words
A photoconductive member according to claim 1, wherein a lower layer comprising an amorphous, microcrystalline or polycrystalline material comprising silicon atoms as a matrix and at least one of hydrogen atoms and halogen atoms is further provided between the substrate and the light receiving layer.
Claim 18
Dependent Claim
22 words
A photoconductive member according to claim 16, wherein the group III atoms of the periodic table are contained in the lower layer.
Claim 19
Dependent Claim
22 words
A photoconductive member according to claim 16, wherein the group V atoms of the periodic table are contained in the lower layer.
Claim 20
Dependent Claim
25 words
A photoconductive member according to claim 16, wherein at least one of oxygen atoms, carbon atoms and germanium atoms are contained in the lower layer.
Claim 21
Dependent Claim
29 words
A photoconductive member according to claim 19, wherein either the group III atoms or the group V atoms of the periodic table is further contained in the lower layer.
Claim 22
Dependent Claim
37 words
A photoconductive member according to claim 1, wherein an upper layer comprising silicon atoms as a matrix and at least one of carbon atoms, nitrogen atoms and oxygen atoms is further provided on the light receiving layer.
Claim 23
Dependent Claim
25 words
A photoconductive member according to claim 1, wherein an upper layer comprising a high dielectric organic material is further provided on the light receiving layer.
Claim 24
Dependent Claim
37 words
A photoconductive member according to claim 16, wherein an upper layer comprising silicon atoms as a matrix and at least one of carbon atoms, nitrogen atoms and oxygen atoms is further provided on the light receiving layer.
Claim 25
Dependent Claim
25 words
A photoconductive member according to claim 16, wherein an upper layer comprising a high dielectric organic material is further provided on the light receiving layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-15 | 1989-01-14 | 1989-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-15 | 1993-01-14 | 1993-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-15 | 1997-01-14 | 1997-07-16 | $7700.00 | Window Closed / Lapsed |