US4500742A
Expired / Lapsed
US
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Iron silicide thermoelectric conversion element
Assignee: Futaba Corp
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Filing: 1984-01-26
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Granted: 1985-02-19
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Expires: 2004-01-26
Abstract
Abstract An iron silicide thermoelectric conversion element wherein a part of one of components of the silicide is substituted by oxygen atom to form either Si-O bond or Fe-O bond in a matrix of the compound to provide either p-type conductivity or n-type conductivity as desired.
Inventors
- 👤 Kiyoshi Morimoto
- 👤 Toshinori Takagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:44
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/01; H10N10/80; H10N10/81; H10N10/817; H10N10/85; H10N10/851; H10N10/855; H10N10/8556; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/129
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
44 words
An iron silicide thermoelectric conversion element comprising a compound consisting of iron and silicon wherein a part of one of components of said compound forming said element is substituted by oxygen atom to provide said element with one of n-type conductivity and p-type conductivity.
Claim 2
Dependent Claim
44 words
An iron silicide thermoelectric conversion element comprising a compound consisting of iron and silicon wherein a part of one of components of said compound forming said element is substituted by oxygen atom to provide said element with one of n-type conductivity and p-type conductivity.
Claim 3
Dependent Claim
36 words
An iron silicide thermoelectric conversion element mainly comprising a compound consisting of iron and silicon wherein a part of silicon contained in said compound is substituted by oxygen atom to provide said element with p-type conductivity.
Claim 4
Dependent Claim
36 words
An iron silicide thermoelectric conversion element mainly comprising a compound consisting of iron and silicon wherein a part of silicon contained in said compound is substituted by oxygen atom to provide said element with p-type conductivity.
Claim 5
Dependent Claim
36 words
An iron silicide thermoelectric conversion element mainly comprising a compound consisting of iron and silicon wherein a part of iron contained in said compound is substituted by oxygen atom to provide said element with n-type conductivity.
Claim 6
Dependent Claim
36 words
An iron silicide thermoelectric conversion element mainly comprising a compound consisting of iron and silicon wherein a part of iron contained in said compound is substituted by oxygen atom to provide said element with n-type conductivity.
Claim 7
Dependent Claim
90 words
An iron silicide thermoelectric conversion element comprising a first element mainly comprising a first compound consisting of iron and silicon in which a part of silicon contained in said first compound is substituted by oxygen atom to provide said first element with p-type conductivity and a second element mainly comprising a second compound consisting of iron and silicon in which a part of iron contained in said second element is substituted by oxygen atom to provide said second element with n-type conductivity, said first and second elements being joined together.
Claim 8
Dependent Claim
90 words
An iron silicide thermoelectric conversion element comprising a first element mainly comprising a first compound consisting of iron and silicon in which a part of silicon contained in said first compound is substituted by oxygen atom to provide said first element with p-type conductivity and a second element mainly comprising a second compound consisting of iron and silicon in which a part of iron contained in said second element is substituted by oxygen atom to provide said second element with n-type conductivity, said first and second elements being joined together.
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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |