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US4996187A
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Epitaxial Ba-Y-Cu-O superconductor film
Assignee: Honeywell International Inc
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Filing: 1988-10-17
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Granted: 1991-02-26
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Expires: 2008-10-17
Abstract
Abstract Superconducting structure are composed of thin film of Ba-Y-Cu-O superconductor epitaxially deposited on a crystal substrate of SrLaAlO, SrLaGaO 4 , SrPrGaO 4 , SrNdGaO 4 , SrSmGaO 4 , SrEuGaO 4 , CaLaGaO 4 , CaPrGaO 4 , or CaNdGaO 4 .
Inventors
- 👤 Bruce H. T. Chai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:04
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/225; C30B15/00; C30B23/00; C30B23/02; C30B7/00; H; H10; H10N; H10N60/00; H10N60/01; H10N60/0268; H10N60/0296; H10N60/0576; H10N60/0604; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/93
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
66 words
A superconducting structure comprising, in combination, a crystal substrate having a superconducting film epitaxially deposited thereon, wherein wherein the substrate is a crystal selected from the group consisting of SrLaAlO 4 , SrLaGaO 4 , SrPrGaO 4 , SrNdGaO 4 , SrSmGaO 4 , SrEuGaO 4 , CaLaGaO 4 , CaPrGaO 4 and CaNdGaO 4 , and wherein the superconducting film is a Ba-Y-Cu-O type superconductor.
Claim 2
Dependent Claim
66 words
A superconducting structure comprising, in combination, a crystal substrate having a superconducting film epitaxially deposited thereon, wherein wherein the substrate is a crystal selected from the group consisting of SrLaAlO 4 , SrLaGaO 4 , SrPrGaO 4 , SrNdGaO 4 , SrSmGaO 4 , SrEuGaO 4 , CaLaGaO 4 , CaPrGaO 4 and CaNdGaO 4 , and wherein the superconducting film is a Ba-Y-Cu-O type superconductor.
Claim 3
Dependent Claim
22 words
The structure of claim 1 wherein the substrate is a crystal of SrLaGaO 4 , SrSmGaO 4 , or CaLaGaO 4 .
Claim 4
Dependent Claim
15 words
The structure of claim 1 wherein the substrate is a crystal of SrSmGaO 4 .
Claim 5
Dependent Claim
15 words
The structure of claim 1 wherein the substrate is a crystal of CaLaGaO 4 .
Claim 6
Dependent Claim
28 words
The structure of claim 1 wherein the Ba-Y-Cu-D type superconductor has the formula Ba 2 YCu 3 O 7-x wherein x is from about 0.1 to about 0.5.
Claim 7
Dependent Claim
22 words
The structure of claim 5 wherein the substrate is a crystal of SrLaGaO 4 , SrSmGaO 4 , or CaLaGaO 4 .
Claim 8
Dependent Claim
15 words
The structure of claim 5 wherein the substrate is a crystal of SrSmGaO 4 .
Claim 9
Dependent Claim
15 words
The structure of claim 5 wherein the substrate is a crystal of CaLaGaO 4 .
Claim 10
Dependent Claim
15 words
The structure of claim 5 wherein the substrate crystal is oriented in the (001) direction.
Claim 11
Dependent Claim
16 words
The structure of claim 5 wherein the substrate crystal has been obtained by the Czochralski process.
References Cited (Backward Citations)
EP0345441A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |