Patent US4731312A successfully refreshed from Google Patents.
US4731312A
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US
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Photoconductor for electrophotography comprises indium phthalocyanine
Assignee: Oki Electric Industry Co Ltd
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Filing: 1987-02-17
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Granted: 1988-03-15
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Expires: 2007-02-17
Abstract
Abstract A function separation type photoconductor for use in electrophotography comprises an electroconductive substrate, a carrier generation layer vapor deposited on the substrate and a carrier transport layer formed on the carrier generation layer. The carrier generation layer is made of an indium phthalocyanine having the general formula ##STR1## wherein Me represents indium, and X is a halogen selected from the group consisting of chlorine, bromine and iodine.
Inventors
- 👤 Masakazu Kato
- 👤 Yoichi Nishioka
- 👤 Katsuaki Kaife
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:35
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0696; C; C09; C09B; C09B47/00; C09B47/04; C09B47/06; C09B47/067; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
In a method for electrophotography with a light source having a wavelength of about 650 nm or greater, which comprises exposing a photoconductor comprising an electroconductive substrate, a carrier generation layer vapor deposited on said substrate, and a carrier transport layer formed on the carrier generation layer, to a light image from said light source, the improvement wherein said carrier generation layer is made of an indium phthalocyanine having the formula ##STR3## wherein Me represents indium, and said carrier generation layer having a transmittance with respect to applied wavelength as shown in FIG. 5.
Claim 2
Dependent Claim
94 words
In a method for electrophotography with a light source having a wavelength of about 650 nm or greater, which comprises exposing a photoconductor comprising an electroconductive substrate, a carrier generation layer vapor deposited on said substrate, and a carrier transport layer formed on the carrier generation layer, to a light image from said light source, the improvement wherein said carrier generation layer is made of an indium phthalocyanine having the formula ##STR3## wherein Me represents indium, and said carrier generation layer having a transmittance with respect to applied wavelength as shown in FIG. 5.
Claim 3
Dependent Claim
22 words
The method according to claim 1 wherein said photoconductor exhibits a sensitivity with respect to applied wavelength as shown in FIG. 7.
Claim 4
Dependent Claim
19 words
The method according to claim 1 wherein the light source has a wavelength of about 800 nm or greater.
Claim 5
Dependent Claim
94 words
In a method for electrophotography with a light source having a wavelength of about 650 nm or greater, which comprises exposing a photoconductor comprising an electroconductive substrate, a carrier generation layer vapor deposited on said substrate, and a carrier transport layer formed on the carrier generation layer, to a light image from said light source, the improvement wherein said carrier generation layer is made of an indium phthalocyanine having the formula ##STR4## wherein Me represents indium, and said carrier generation layer having a transmittance with respect to applied wavelength as shown in FIG. 8.
Claim 6
Dependent Claim
94 words
In a method for electrophotography with a light source having a wavelength of about 650 nm or greater, which comprises exposing a photoconductor comprising an electroconductive substrate, a carrier generation layer vapor deposited on said substrate, and a carrier transport layer formed on the carrier generation layer, to a light image from said light source, the improvement wherein said carrier generation layer is made of an indium phthalocyanine having the formula ##STR4## wherein Me represents indium, and said carrier generation layer having a transmittance with respect to applied wavelength as shown in FIG. 8.
Claim 7
Dependent Claim
22 words
The method according to claim 4 wherein said photoconductor exhibits a sensitivity with respect to applied wavelength as shown in FIG. 9.
Claim 8
Dependent Claim
19 words
The method according to claim 4 wherein said light source has a wavelength of about 800 nm or greater.
Claim 9
Dependent Claim
94 words
In a method for electrophotography with a light source having a wavelength of about 650 nm or greater, which comprises exposing a photoconductor comprising an electroconductive substrate, a carrier generation layer vapor deposited on said substrate, and a carrier transport layer formed on the carrier generation layer, to a light image from said light source, the improvement wherein said carrier generation layer is made of an indium phthalocyanine having the formula ##STR5## wherein Me represents indium, and said carrier generation layer having a transmittance with respect to applied wavelength as shown in FIG. 10.
Claim 10
Dependent Claim
94 words
In a method for electrophotography with a light source having a wavelength of about 650 nm or greater, which comprises exposing a photoconductor comprising an electroconductive substrate, a carrier generation layer vapor deposited on said substrate, and a carrier transport layer formed on the carrier generation layer, to a light image from said light source, the improvement wherein said carrier generation layer is made of an indium phthalocyanine having the formula ##STR5## wherein Me represents indium, and said carrier generation layer having a transmittance with respect to applied wavelength as shown in FIG. 10.
Claim 11
Dependent Claim
22 words
The method according to claim 7 wherein the photoconductor exhibits a sensitivity with respect to applied wavelength as shown in FIG. 11.
Claim 12
Dependent Claim
19 words
The method according to claim 7 wherein said light source has a wavelength of about 800 nm or greater.
References Cited (Backward Citations)
US3895944A
Cited
US4226928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-03-15 | 1991-09-14 | 1992-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-15 | 1995-09-14 | 1996-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-15 | 1999-09-14 | 2000-03-15 | $7700.00 | Window Closed / Lapsed |