Patent US4868076A successfully refreshed from Google Patents.
US4868076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive member comprising charge generating layer and charge transporting layer
Assignee: Minolta Co Ltd
•
Filing: 1987-09-25
•
Granted: 1989-09-19
•
Expires: 2007-09-25
Abstract
Abstract A photosensitive member of the present invention comprises an electrically conductive substrate, a hydrogenated and/or halogenated amorphous silicon:germanium charge generating layer and a hydrogen-containing amorphous carbon charge transporting layer which contains oxygen and/or nitrogen. The charge generating layer may further contain various elements such as boron or phosphorus, oxygen, nitrogen and carbon as a chemical modifier.
Inventors
- 👤 Syuji Iino
- 👤 Izumi Osawa
- 👤 Hideo Hotomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:26
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/0433; G03G5/08; G03G5/082; G03G5/08214; G03G5/08221; G03G5/08235; G03G5/08285
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
180 words
A photosensitive member comprising: an electrically conductive substrate; a charge generating layer comprising amorphous silicon as a mtrix containing germanium atoms in an amount of up to about 30 atomic % based on the combined amount of silicon atoms and germanium atoms and at least one of hydrogen and halogen atoms in an amount of about 10 to about 35 atomic % based on the combined amount of silicon atoms and hydrogen atoms or of silicon atoms and halogen atoms, said charge generating layer having a thickness of about 0.1 to about 5 microns; and a charge transporting layer comprising amorphous carbon containing hydrogen in an amount of about 30 to about 60 atomic % based on the combined amount of hydrogen atoms and carbon atoms, said charge transporting layer having a thickness of about 5 to about 50 microns and containing at least one of oxygen atoms in an amount of about 0.01 to about 7.0 atomic % and nitrogn atoms in an amount of about 0.01 to about 5.0 atomic % based on all the constituent atoms therein.
Claim 2
Dependent Claim
180 words
A photosensitive member comprising: an electrically conductive substrate; a charge generating layer comprising amorphous silicon as a mtrix containing germanium atoms in an amount of up to about 30 atomic % based on the combined amount of silicon atoms and germanium atoms and at least one of hydrogen and halogen atoms in an amount of about 10 to about 35 atomic % based on the combined amount of silicon atoms and hydrogen atoms or of silicon atoms and halogen atoms, said charge generating layer having a thickness of about 0.1 to about 5 microns; and a charge transporting layer comprising amorphous carbon containing hydrogen in an amount of about 30 to about 60 atomic % based on the combined amount of hydrogen atoms and carbon atoms, said charge transporting layer having a thickness of about 5 to about 50 microns and containing at least one of oxygen atoms in an amount of about 0.01 to about 7.0 atomic % and nitrogn atoms in an amount of about 0.01 to about 5.0 atomic % based on all the constituent atoms therein.
Claim 3
Dependent Claim
38 words
A photosensitive member as claimed in claim 1 wherein said charge generating layer further comprises boron atoms or phosphorus atoms in an effective amount of less than about 20,000 atomic ppm based on all the constituent atoms therein.
Claim 4
Dependent Claim
33 words
A photosensitive member as claimed in claim 2 wherein the effective amount of the boron or phosphorus atoms is preferably up to about 150 atomic ppm based on all the constituent atoms therein.
Claim 5
Dependent Claim
34 words
A photosensitive member as claimed in claim 1 wherein the charge generating layer further contains oxygen in an amount of about 0.001 to about 1 atomic % based on all the constituent atoms therein.
Claim 6
Dependent Claim
34 words
A photosensitive member as claimed in claim 1 wherein the charge generating layer further contains nitrogen in an amount of about 0.001 to about 3 atomic % based on all the constituent atoms therein.
Claim 7
Dependent Claim
34 words
A photosensitive member as claimed in claim 1 wherein the charge generating layer further contains carbon in an amount of about 0.001 to about 5 atomic % based on all the constituent atoms therein.
Claim 8
Dependent Claim
36 words
A photosensitive member as claimed in claim 1 wherein the amount of oxygen atoms contained in the charge transporting layer is preferably about 0.1 to about 4.7 atomic % based on all the constituent atoms therein.
Claim 9
Dependent Claim
36 words
A photosensitive member as claimed in claim 1 wherein the amount of nitrogen atoms contained in the charge transporting layer is preferably about 0.1 to about 3.9 atomic % based on all the constituent atoms therein.
Claim 10
Dependent Claim
35 words
A photosensitive member as claimed in claim 6, wherein said charge generating layer further comprises oxygen atoms in an amount of about 0.001 to about 1 atomic % based on all the constituent atoms therein.
Claim 11
Dependent Claim
35 words
A photosensitive member as claimed in claim 9, wherein said charge generating layer further comprises nitrogen atoms in an amount of about 0.001 to about 3 atomic % based on all the constituent atoms therein.
Claim 12
Dependent Claim
35 words
A photosensitive member as claimed in claim 6, wherein said charge generating layer further comprises nitrogen atoms in an amount of about 0.001 to about 3 atomic % based on all the constituent atoms therein.
References Cited (Backward Citations)
US3956525A
Cited
US4366208A
Cited
JPS5662554A
Cited
US4394425A
Cited
JPS5888753A
Cited
US4491626A
Cited
US4495262A
Cited
US4518670A
Cited
JPS5928161A
Cited
JPS5938753A
Cited
JPS59136742A
Cited
JPS58154850A
Cited
US4513073A
Cited
US4544617A
Cited
US4592982A
Cited
JPS60249115A
Cited
JPS60249155A
Cited
DE3610076A1
Cited
US4675265A
Cited
US4634648A
Cited
US4738912A
Cited
US4741982A
Cited
US4743522A
Cited
US4749636A
Cited
JPH06194056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |