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US5998050A
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Composite metal oxide material
Assignee: Fujikura Ltd
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Filing: 1996-12-19
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Granted: 1999-12-07
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Expires: 2016-12-19
Abstract
Abstract A composite material is disclosed which includes a substrate, an oriented film provided on a surface of the substrate and formed of a crystal of a Y123 metal oxide of the formula LnBa 2 Cu 3 O y wherein Ln stands for Y or an element belonging to the lanthanoid and y is a number of 6-7, and a layer of a Y123 metal oxide of the formula LnBa 2 Cu 3 O y wherein Ln stands for Y or an element belonging to the lanthanoid and y is a number of 6-7 formed on the oriented film.
Inventors
- 👤 Yasuji Yamada
- 👤 Masaru Nakamura
- 👤 Noriyuki Tatsumi
- 👤 Jiro Tsujino
- 👤 Kanshi Ohtsu
- 👤 Yasuo Kanamori
- 👤 Minoru Tagami
- 👤 Atsushi Kume
- 👤 Yuh Shiohara
- 👤 Shoji Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:46
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/225; C04; C04B; C04B35/00; C04B35/01; C04B35/45; C04B35/4504; C04B35/4508; C30B15/00; 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; Y10S505/00; Y10S505/70; Y10S505/701; Y10S505/704; Y10S505/725; Y10S505/729; Y10S505/733
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
146 words
A composite material comprising: a substrate, a non-uniformly oriented film with a X-ray diffraction pattern showing a diffraction peak for one axis, which is normal to the plane of the substrate, and additional diffraction peaks, said non-uniformly oriented film having a thickness of 0.01-1 μm and provided on a surface of said substrate, said non-uniformly oriented film being formed of a metal oxide which has a crystal structure of a Y123 metal oxide and which has the formula: LnBa.sub.2 CU.sub.3 O.sub.y wherein Ln stands for Y or an element belonging to the lanthanoid group and y is a number of 6-7, and a layer of a single crystal metal oxide provided over a surface of said non-uniformly oriented film and having the formula: LnBa.sub.2 CU.sub.3 O.sub.y wherein Ln stands for Y or an element belonging to the lanthanoid group and y is a number of 6-7.
Claim 2
Dependent Claim
146 words
A composite material comprising: a substrate, a non-uniformly oriented film with a X-ray diffraction pattern showing a diffraction peak for one axis, which is normal to the plane of the substrate, and additional diffraction peaks, said non-uniformly oriented film having a thickness of 0.01-1 μm and provided on a surface of said substrate, said non-uniformly oriented film being formed of a metal oxide which has a crystal structure of a Y123 metal oxide and which has the formula: LnBa.sub.2 CU.sub.3 O.sub.y wherein Ln stands for Y or an element belonging to the lanthanoid group and y is a number of 6-7, and a layer of a single crystal metal oxide provided over a surface of said non-uniformly oriented film and having the formula: LnBa.sub.2 CU.sub.3 O.sub.y wherein Ln stands for Y or an element belonging to the lanthanoid group and y is a number of 6-7.
Claim 3
Dependent Claim
30 words
A composite material as set forth in claim 1, wherein said substrate is formed of a material which is substantially unwettable with a melt composed of Ba, Cu and O.
Claim 4
Dependent Claim
24 words
A composite material as set forth in claim 1, wherein said substrate is a crystal of a metal oxide containing an alkaline earth metal.
Claim 5
Dependent Claim
18 words
A composite material as set forth in claim 1, wherein said substrate is formed of a MgO crystal.
Claim 6
Dependent Claim
22 words
A composite material as set forth in claim 1, wherein said non-uniformly oriented film has been formed by a plasma deposition method.
Claim 7
Dependent Claim
16 words
A composite material as set forth in claim 1 wherein said one axis is the c-axis.
Claim 8
Dependent Claim
16 words
A composite material as set forth in claim 1 wherein said one axis is the a-axis.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-06 | 2003-06-07 | 2003-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-06 | 2007-06-07 | 2007-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-06 | 2011-06-07 | 2011-12-07 | $7700.00 | Window Closed / Lapsed |