US4882256A
Expired / Lapsed
US
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Photosensitive member having an overcoat layer comprising amorphous carbon
Assignee: Minolta Co Ltd
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Filing: 1987-10-13
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Granted: 1989-11-21
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Expires: 2007-10-13
Abstract
Abstract A photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer comprising an organic material and a hydrogen-containing amorphous carbon overcoat layer containing one or more atoms selected from the group consisting of halogen, oxygen and nitrogen. The overcoat layer contains hydrogen in an amount of about 5 to about 50 atomic % based on the combined amount of hydrogen atoms and carbon atoms.
Inventors
- 👤 Izumi Osawa
- 👤 Syuji Iino
- 👤 Hideo Hotomi
- 👤 Kenji Masaki
- 👤 Isao Doi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:05
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/0436; G03G5/08; G03G5/082; G03G5/08285; G03G5/14; G03G5/147; G03G5/14704
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
82 words
A photosensitive member comprising: an electrically conductive substrate; an organic photoconductive layer comprising an organic material as a matrix; and an overcoat layer formed on said photoconductive layer by an organic plasma polymerization with said substrate heated to a temperature not exceeding 100° C. and comprising amorphous carbon containing hydrogen, said overcoat layer containing one or more atoms selected from the group consisting of halogen, oxygen and nitrogen, and said overcoat layer having a thickness of about 0.01 to about 5 microns.
Claim 2
Dependent Claim
82 words
A photosensitive member comprising: an electrically conductive substrate; an organic photoconductive layer comprising an organic material as a matrix; and an overcoat layer formed on said photoconductive layer by an organic plasma polymerization with said substrate heated to a temperature not exceeding 100° C. and comprising amorphous carbon containing hydrogen, said overcoat layer containing one or more atoms selected from the group consisting of halogen, oxygen and nitrogen, and said overcoat layer having a thickness of about 0.01 to about 5 microns.
Claim 3
Dependent Claim
36 words
A photosensitive member as claimed in claim 1 wherein the amount of the hydrogen contained in the overcoat layer is about 5 to 50 atomic % based on the combined amount of hydrogen and carbon therein.
Claim 4
Dependent Claim
34 words
A photosensitive member as claimed in claim 1 wherein the amount of the halogen contained in the overcoat layer is about 0.01 to about 50 atomic % based on all the constituent atoms therein.
Claim 5
Dependent Claim
35 words
A photosensitive member as claimed in claim 3 wherein the amount of the halogen contained in the overcoat layer is preferably about 0.1 to about 10 atomic % based on all the constituent atoms therein.
Claim 6
Dependent Claim
34 words
A photosensitive member as claimed in claim 1 wherein the amount of the oxygen contained in the overcoat layer is about 0.01 to about 20 atomic % based on all the constituent atoms therein.
Claim 7
Dependent Claim
35 words
A photosensitive member as claimed in claim 5 wherein the amount of the oxygen contained in the overcoat layer is preferably about 0.1 to about 10 atomic % based on all the constituent atoms therein.
Claim 8
Dependent Claim
34 words
A photosensitive member as claimed in claim 1 wherein the amount of the nitrogen contained in the overcoat layer is about 0.01 to about 20 atomic % based on all the constituent atoms therein.
Claim 9
Dependent Claim
35 words
A photosensitive member as claimed in claim 7 wherein the amount of the nitrogen contained in the overcoat layer is preferably about 0.1 to about 10 atomic % based on all the constituent atoms therein.
Claim 10
Dependent Claim
23 words
A photosensitive member as claimed in claim 1 wherein said organic photoconductive layer comprises a binder resin and a dis-azo compound dispersed therein.
Claim 11
Dependent Claim
14 words
A photosensitive member as claimed in claim 1 wherein the photoconductive layer comprises phthalocyanine.
Claim 12
Dependent Claim
22 words
A photosensitive member as claimed in claim 1 wherein said photoconductive layer comprises a binder resin and a hydrazone compound dispersed therein.
Claim 13
Dependent Claim
95 words
A photosensitive member comprising: an electrically conductive substrate; an organic charge generating layer comprising an organic material as a matrix; an organic charge transporting layer comprising an organic material as a matrix; and an overcoat layer formed on said photoconductive layer by an organic plasma polymerization with said substrate heated to a temperature not exceeding 100° C. and comprising amorphous carbon containing hydrogen, said overcoat layer containing one or more atoms selected from the group consisting of halogen, oxygen and nitrogen, and said overcoat layer having a thickness of about 0.01 to about 5 microns.
Claim 14
Dependent Claim
95 words
A photosensitive member comprising: an electrically conductive substrate; an organic charge generating layer comprising an organic material as a matrix; an organic charge transporting layer comprising an organic material as a matrix; and an overcoat layer formed on said photoconductive layer by an organic plasma polymerization with said substrate heated to a temperature not exceeding 100° C. and comprising amorphous carbon containing hydrogen, said overcoat layer containing one or more atoms selected from the group consisting of halogen, oxygen and nitrogen, and said overcoat layer having a thickness of about 0.01 to about 5 microns.
Claim 15
Dependent Claim
36 words
A photosensitive member as claimed in claim 12 wherein the amount of the hydrogen contained in the overcoat layer is about 5 to 50 atomic % based on the combined amount of hydrogen and carbon therein.
Claim 16
Dependent Claim
34 words
A photosensitive member as claimed in claim 12 wherein the amount of the halogen contained in the overcoat layer is about 0.01 to about 50 atomic % based on all the constituent atoms therein.
Claim 17
Dependent Claim
34 words
A photosensitive member as claimed in claim 14 wherein the amount of the halogen contained in the overcoat layer is about 0.1 to about 10 atomic % based on all the constituent atoms therein.
Claim 18
Dependent Claim
34 words
A photosensitive member as claimed in claim 12 wherein the amount of the oxygen contained in the overcoat layer is about 0.01 to about 20 atomic % based on all the constituent atoms therein.
Claim 19
Dependent Claim
34 words
A photosensitive member as claimed in claim 16 wherein the amount of the oxygen contained in the overcoat layer is about 0.1 to about 10 atomic % based on all the constituent atoms therein.
Claim 20
Dependent Claim
34 words
A photosensitive member as claimed in claim 12 wherein the amount of the nitrogen contained in the overcoat layer is about 0.01 to about 20 atomic % based on all the constituent atoms therein.
Claim 21
Dependent Claim
34 words
A photosensitive member as claimed in claim 18 wherein the amount of the nitrogen contained in the overcoat layer is about 0.1 to about 10 atomic % based on all the constituent atoms therein.
Claim 22
Dependent Claim
23 words
A photosensitive member as claimed in claim 12 wherein said charge generating layer comprises a binder resin and a dis-azo compound dispersed therein.
Claim 23
Dependent Claim
23 words
A photosensitive member as claimed in claim 12 wherein said charge transporting layer comprises a binder resin and a hydrazone compound dispersed therein.
Claim 24
Dependent Claim
17 words
A photosensitive member as claimed in claim 12 wherein said charge generating layer comprises a phthalocyanine compound.
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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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |