US4810606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive member comprising charge generating layer and charge transporting layer
Assignee: Minolta Co Ltd
•
Filing: 1987-07-02
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Granted: 1989-03-07
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Expires: 2007-07-02
Abstract
Abstract A photosensitive member of the present invention comprises an electrically conductive substrate, a charge generating layer and a charge transporting layer comprising amorphous carbon which contains hydrogen. The charge transporting layer contains about 0.1 to about 7 atomic % of oxygen and/or about 0.1 to about 5 atomic % of nitrogen based on all the constituent atoms therein. The photosensitive member of this construction is excellent in electrophotographic characteristics inclusive of charge transportability and charging ability.
Inventors
- 👤 Shuji Iino
- 👤 Hideo Hotomi
- 👤 Isao Doi
- 👤 Mitsutoshi Nakamura
- 👤 Izumi Osawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:25
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08214; G03G5/08278; G03G5/043; G03G5/0433; G03G5/08221; G03G5/08235; G03G5/08285
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
97 words
A photosensitive member comprising: an electrically conductive substrate; a charge generating layer; and a charge transporting layer comprising amorphous carbon containing hydrogen in an amount of about 0.1 to about 67 atomic % based on the combined amount of hydrogen and carbon, said charge transporting layer containing at least one of oxygen in an amount of about 0.1 to about 7 atomic % and nitrogen in an amount of about 0.1 to about 5 atomic % based on all the constituent atoms in the layer and having a relative dielectric constant of about 2.0 to about 6.0.
Claim 2
Dependent Claim
97 words
A photosensitive member comprising: an electrically conductive substrate; a charge generating layer; and a charge transporting layer comprising amorphous carbon containing hydrogen in an amount of about 0.1 to about 67 atomic % based on the combined amount of hydrogen and carbon, said charge transporting layer containing at least one of oxygen in an amount of about 0.1 to about 7 atomic % and nitrogen in an amount of about 0.1 to about 5 atomic % based on all the constituent atoms in the layer and having a relative dielectric constant of about 2.0 to about 6.0.
Claim 3
Dependent Claim
17 words
A photosensitive member as claimed in claim 1 wherein said charge transporting layer has essentially no photoconductivity.
Claim 4
Dependent Claim
19 words
A photosensitive member as claimed in claim 1 wherein said charge transporting layer is prepared by organic plasma polymerization.
Claim 5
Dependent Claim
36 words
A photosensitive member as claimed in claim 1 wherein the amount of the oxygen contained in the charge transporting layer is preferably about 0.1 to about 4.7 atomic % based on all the constituent atoms therein.
Claim 6
Dependent Claim
36 words
A photosensitive member as claimed in claim 1 wherein the amount of the nitrogen contained in the charge transporting layer is preferably about 0.1 to about 3.9 atomic % based on all the constituent atoms therein.
Claim 7
Dependent Claim
24 words
A photosensitive member as claimed in claim 1 wherein the charge transporting layer has an optical energy gap of about 1.5 to about 3.0.
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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) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |