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US4868079A
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Infrared-sensitive electrophotoconductive element comprising an anthanthrone, a phthalocyanine and an oxadiazole compound in admixture
Assignee: DIC Corp
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Filing: 1988-04-13
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Granted: 1989-09-19
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Expires: 2008-04-13
Abstract
Abstract An electrophotoconductor is disclosed, comprising a conductive support having provided thereon a photoconductive layer comprising a resin binder having dispersed therein an anthanthrone compound, a phthalocyanine compound, and an oxadiazole compound. The electrophotoconductor exhibits high sensitivity in the wavelength region of from 760 to 850 nm and high negative charge retention and is suitable for use in a recording device using a semiconductor laser as a light source.
Inventors
- 👤 Nguyen C. Khe
- 👤 Masanobu Nakamura
- 👤 Midori Fukawatase
- 👤 Kenji Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:09
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0609; G03G5/0622; G03G5/0624; G03G5/0627; G03G5/0633; G03G5/09
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
An electrophotoconductor having high sensitivity in the near infrared region comprising a conductive support having provided thereon a photosensitive layer comprising a resin binder having dispersed therein from 0.5 to 90% by weight of an anthanthrone compound, from 0.5 to 90% by weight of a phthalocyanine compound, and from 0.1 to 90% by weight of an axadiazole compound.
Claim 2
Dependent Claim
58 words
An electrophotoconductor having high sensitivity in the near infrared region comprising a conductive support having provided thereon a photosensitive layer comprising a resin binder having dispersed therein from 0.5 to 90% by weight of an anthanthrone compound, from 0.5 to 90% by weight of a phthalocyanine compound, and from 0.1 to 90% by weight of an axadiazole compound.
Claim 3
Dependent Claim
40 words
An electrophotoconductor as in claim 1, wherein said anthanthrone compound is a compound represented by formula ##STR5## wherein X 1 and X 2 each represents a halogen atom; and n represents 0 or an integer of from 1 to 4.
Claim 4
Dependent Claim
17 words
An electrophotoconductor as in claim 1, wherein said oxadiazole compound is a compound represented by formula ##STR6##
Claim 5
Dependent Claim
27 words
An electrophotoconductor as in claim 1, wherein said anthanthrone compound is present in an amount of from 10 to 40% by weight based on the resin binder.
Claim 6
Dependent Claim
27 words
An electrophotoconductor as in claim 1, wherein said phthalocyanine compound is present in an amount of from 10 to 40% by weight based on the resin binder.
Claim 7
Dependent Claim
27 words
An electrophotoconductor as in claim 1, wherein said oxadiazole compound is present in an amount of from 1 to 80% by weight based on the resin binder.
Claim 8
Dependent Claim
26 words
An electrophotoconductor as in claim 1, wherein said conductive support is an aluminum sheet having a grain surface and said resin binder is an alkalisoluble resin.
References Cited (Backward Citations)
US3894869A
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 |