US3816787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductor comprising cadmium selenide
Assignee: Toshiba Corp
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Filing: 1971-08-17
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Granted: 1974-06-11
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Expires: 1991-08-17
Abstract
Abstract The photoelectric conductor device comprises a first layer of cadmium selenide or cadmium sulfoselenide, a second layer formed on the first layer and made of a substance containing cadmium salt of oxy-acid, and a third layer formed on the second layer, the third layer being made of a high resistance substance having a resistivity of more than 108 ohm-cm and being selected from the group of compounds not including cadmium selenide.
Inventors
- 👤 K Shimizu
- 👤 O Yoshida
- 👤 K Terakawa
- 👤 S Aihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:28
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J9/00; H01J9/20; H01J9/233
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A photoelectric conductor device comprising a transparent electroconductive film, a first layer made of photoelectric conductive material consisting of cadmium selenide, a second layer having a thickness less than 2,000A consisting of cadmium selenite and a third layer formed on said second layer made of a high resistance compound having a resistivity of more than 108 ohm-cm selected from the group consisting of zinc sulfide, germanium sulfide, arsenic disulfide, arsenic trisulfide, arsenic triselenide, germanium selenide, thallium sulfide, thallium selenide, bismuth trisulfide, bismuth triselenide, zinc selenide, cadmium telluride, antimony trisulfide, antimony triselenide and mixtures thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |