US4535195A
Expired / Lapsed
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Photoelectromotive force element
Assignee: Futaba Corp
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Filing: 1984-01-18
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Granted: 1985-08-13
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Expires: 2004-01-18
Abstract
Abstract A photoelectromotive force element capable of being manufactured at a low cost and exhibiting an excellent photoelectric conversion efficiency. The element comprises one conductivity type semiconductor substrate and the other conductivity type iron oxide film deposited on the semiconductor substrate.
Inventors
- 👤 Kiyoshi Morimoto
- 👤 Toshinori Takagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:22
CPC Classifications
H; H10; H10F; H10F71/00; H10F71/134; H10F10/00; H10F10/10; H10F10/16; H10F71/128; H10F77/00; H10F77/10; H10F77/12; Y; Y02; Y02E; Y02E10/00; Y02E10/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
28 words
A photoelectromotive force element comprising one conductivity type semiconductor substrate and the other conductivity type iron oxide film consisting essentially of FeOx (1≦X≦2) deposited on said semiconductor substrate.
Claim 2
Dependent Claim
28 words
A photoelectromotive force element comprising one conductivity type semiconductor substrate and the other conductivity type iron oxide film consisting essentially of FeOx (1≦X≦2) deposited on said semiconductor substrate.
Claim 3
Dependent Claim
21 words
A photoelectromotive force element as defined in claim 1, wherein said semiconductor substrate is formed of a p-conductivity type semiconductor material.
Claim 4
Dependent Claim
18 words
A photoelectromotive force element as defined in claim 1, wherein said semiconductor substrate is formed of monocrystalline silicon.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |