US4797338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive member comprising charge generating layer and charge transporting layer
Assignee: Minolta Co Ltd
•
Filing: 1987-09-14
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Granted: 1989-01-10
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Expires: 2007-09-14
Abstract
Abstract A photosensitive member of the present invention comprises an electrically conductive substrate, an evaporated layer of phthalocyanine compounds as a charge generating layer and a hydrogen-containing amorphous carbon layer as a charge transporting layer. The charge transporting layer contains hydrogen in an amount of about 30 to about 60 atomic % based on the combined amount of hydrogen atoms and carbon atoms.
Inventors
- 👤 Syuji Iino
- 👤 Hideo Hotomi
- 👤 Noboru Saeki
- 👤 Masanori Fujiwara
- 👤 Fumiko Uchino
- 👤 Izumi Osawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:50
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/08; G03G5/082; G03G5/08285; G03G5/043; G03G5/0436
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
38 words
A photosensitive member comprising: an electrically conductive substrate; a vacuum evaporated layer formed from phthalocyanine compounds serving as a charge generating layer; and a plasma polymerized layer serving as a charge transporting layer comprising amorphous carbon containing hydrogen.
Claim 2
Dependent Claim
38 words
A photosensitive member comprising: an electrically conductive substrate; a vacuum evaporated layer formed from phthalocyanine compounds serving as a charge generating layer; and a plasma polymerized layer serving as a charge transporting layer comprising amorphous carbon containing hydrogen.
Claim 3
Dependent Claim
41 words
A photosensitive member as claimed in claim 1 wherein the hydrogen atoms are contained in the plasma polymerized layer in an amount of about 30 to about 60 atomic % based on the combined amount of hydrogen atoms and carbon atoms.
Claim 4
Dependent Claim
24 words
A photosensitive member as claimed in claim 1 wherein the thickness of the vacuum evaporated layer is about 200 angstroms to about 2 microns.
Claim 5
Dependent Claim
22 words
A photosensitive member as claimed in claim 1 wherein the thickness of the plasma polymerized layer is about 5 to 50 microns.
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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) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |