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US4045375A
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Highly electron-conductive composition
Assignee: Individual
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Filing: 1975-11-24
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Granted: 1977-08-30
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Expires: 1995-11-24
Abstract
Abstract Multiple oxides of the general formula (L 1 -x Mx) (Q 1 -y Ry)O 3 , in which L is an element of atomic number 57 - 71, M is an element of Ca, Sr or Ba, Q and R are mutually different elements of atomic number 21 - 30 or Zr, 0 ≦ x < 1 and 0 < y < 1, have excellent electron-conductivity and thermal stability.
Inventors
- 👤 Masao Komatu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:13
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9016; H01M4/9025; H01M4/9033; C; C04; C04B; C04B35/00; C04B35/01; C04B35/42; H01B; H01B1/00; H01B1/06; H01B1/08; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
76 words
A highly electron-conductive composition comprising a multiple oxide having the general formula: (L.sub.1-x M.sub.x ) (Q.sub.1-y R.sub.y) O.sub.3 in which L is an element selected from the group consisting of La, Pr, Nd, Yb, Gd and Lu; M is an element selected from the group consisting of Ca, Sr and Ba; QR is a pair of elements selected from the group consisting of CrNi, ZrMn, FeTi, FeCo, and NiCu; and 0≦ x <0.5 and 0.2<y <0.8.
Claim 2
Dependent Claim
76 words
A highly electron-conductive composition comprising a multiple oxide having the general formula: (L.sub.1-x M.sub.x ) (Q.sub.1-y R.sub.y) O.sub.3 in which L is an element selected from the group consisting of La, Pr, Nd, Yb, Gd and Lu; M is an element selected from the group consisting of Ca, Sr and Ba; QR is a pair of elements selected from the group consisting of CrNi, ZrMn, FeTi, FeCo, and NiCu; and 0≦ x <0.5 and 0.2<y <0.8.
Claim 3
Dependent Claim
29 words
A highly electron-conductive composition comprising multiple oxide having the formual (Pr 1 -xSrx)(Zr 1 -yMny)O 3 in which x and y are the same as defined in claim 1.
Claim 4
Dependent Claim
29 words
A highly electron-coductive composition comprising multiple oxide having the formula (La 1 -xCax)(Cr 1 -yNiy)O 3 in which x and y are the same as defined in claim 1.
Claim 5
Dependent Claim
28 words
A highly electron-conductive composition comprising multiple oxide having the formula (La 1 -xBax)(Fe 1 -yTiy)O 3 which x and y are the same as defined in claim 1.
Claim 6
Dependent Claim
29 words
A highly electron-conductive composition comprising multiple oxide having the formula (Yb 1 -xCax)(Fe 1 -yCoy)O 3 in which x and y are the same as defined in claim 1.
Claim 7
Dependent Claim
29 words
A highly electron-conductive composition comprising multiple oxide having the formula (Nd 1 -xSrx)(Ni 1 -yCuy)O 3 in which x and y are the same as defined in claim 1.
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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |