US4296191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-layered photoreceptor containing a selenium-tellurium layer and an arsenic-selenium over layer
Assignee: 3M Co
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Filing: 1980-06-16
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Granted: 1981-10-20
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Expires: 2000-06-16
Abstract
Abstract A composite dual layered photoreceptor member useful in the field of electrostatic electrophotography. The photoreceptor has a support member with a bulk layer on the support member of vitreous selenium-tellurium composition and a thin overlayer of vitreous arsenic-selenium composition. The selenium-tellurium can, if desired, be doped with a halogen.
Inventors
- 👤 Richard L. Jacobson
- 👤 Timothy T. Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/043; G03G5/0433
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
79 words
A composite photoreceptor member including a support layer and only two layers of photoconductive materials, said two layers including: a. a first layer of a vitreous selenium and tellurium composition carried on the support layer, b. and a second layer comprising vitreous arsenic-selenium composition overlaying said layer of vitreous selenium-tellurium composition wherein said layer of selenium-tellurium composition is about 40 to 80 microns in thickness and said layer of arsenic-selenium composition is about 0.5 to 5.0 microns in thickness.
Claim 2
Dependent Claim
79 words
A composite photoreceptor member including a support layer and only two layers of photoconductive materials, said two layers including: a. a first layer of a vitreous selenium and tellurium composition carried on the support layer, b. and a second layer comprising vitreous arsenic-selenium composition overlaying said layer of vitreous selenium-tellurium composition wherein said layer of selenium-tellurium composition is about 40 to 80 microns in thickness and said layer of arsenic-selenium composition is about 0.5 to 5.0 microns in thickness.
Claim 3
Dependent Claim
19 words
The photoreceptor member according to claim 1 wherein said layer of vitreous selenium-tellurium composition is doped with a halogen.
Claim 4
Dependent Claim
26 words
The photoreceptor member according to claim 1 wherein said layer of vitreous selenium-tellurium composition contains tellurium in the range of 4 to 10 percent by weight.
Claim 5
Dependent Claim
18 words
The photoreceptor member according to claim 3 wherein said layer of vitreous selenium-tellurium is doped with a halogen.
Claim 6
Dependent Claim
26 words
The photoreceptor member according to claim 1 wherein said layer of vitreous arsenic-selenium composition contains arsenic in the range of 5 to 40 percent by weight.
Claim 7
Dependent Claim
18 words
The photoreceptor member according to claim 5 wherein said layer of vitreous selenium-tellurium is doped with a halogen.
Claim 8
Dependent Claim
17 words
The photoreceptor member according to claim 1 wherein said layer of vitreous arsenic-selenium composition is arsenic tri-selenide.
Claim 9
Dependent Claim
18 words
The photoreceptor member according to claim 7 wherein said layer of vitreous selenium-tellurium is doped with a halogen.
Claim 10
Dependent Claim
44 words
The photoreceptor member according to claim 1 wherein said layer of vitreous selenium-tellurium composition contains tellurium in the range of 4 to 10 percent by weight and said layer of arsenic-selenium composition contains arsenic in the range of 5 to 40 percent by weight.
Claim 11
Dependent Claim
18 words
The photoreceptor member according to claim 9 wherein said layer of vitreous selenium-tellurium is doped with a halogen.
Claim 12
Dependent Claim
35 words
The photoreceptor member according to claim 1 wherein said layer of vitreous selenium-tellurium composition contains tellurium in the range of 4 to 10 percent by weight and said layer of arsenic-selenium composition is arsenic tri-selenide.
Claim 13
Dependent Claim
18 words
The photoreceptor member according to claim 11 wherein said layer of vitreous selenium-tellurium is doped with a halogen.
Claim 14
Dependent Claim
29 words
The photoreceptor member according to claim 1 wherein said layer of vitreous selenium-tellurium composition contains about 6 percent tellurium by weight and said layer of arsenic-selenium composition is arsenic-tri-selenide.
Claim 15
Dependent Claim
18 words
The photoreceptor member according to claim 13 wherein said layer of vitreous selenium-tellurium is doped with a halogen.
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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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |