US5109164A
Expired / Lapsed
US
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Superconducting weak link device
Assignee: National Institute of Information and Communications Technology
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Filing: 1990-06-06
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Granted: 1992-04-28
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Expires: 2010-06-06
Abstract
Abstract A superconducting weak link device includes a plurality of interconnected small superconducting regions and a plurality of conductive bridges which connect adjacent the small superconducting regions in which the length of the bridges is in the range from 1 to 5.31 times the coherence length.
Inventors
- 👤 Toshiaki Matsui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:54
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/10; H10N60/12; H10N60/124; H03; H03K; H03K17/00; H03K17/51; H03K17/92; H03K3/00; H03K3/02; H03K3/38; Y; Y10; Y10S; Y10S505/00; Y10S505/70; Y10S505/701; Y10S505/702; Y10S505/725; Y10S505/729; Y10S505/825; Y10S505/873; Y10S505/874
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A superconducting weak link device, comprising: a plurality of superconducting regions formed of a superconducting material having a superconducting coherence length, each of said regions having a volume of between 10 -18 and 2 × 10 -12 cubic centimeters, each of said regions being adjacent to at least one other of said regions; a plurality of conductive bridges which interconnect adjacent superconducting regions, the length of each said bridge being in the range of 1 to 5.31 times said coherence length.
Claim 2
Dependent Claim
81 words
A superconducting weak link device, comprising: a plurality of superconducting regions formed of a superconducting material having a superconducting coherence length, each of said regions having a volume of between 10 -18 and 2 × 10 -12 cubic centimeters, each of said regions being adjacent to at least one other of said regions; a plurality of conductive bridges which interconnect adjacent superconducting regions, the length of each said bridge being in the range of 1 to 5.31 times said coherence length.
Claim 3
Dependent Claim
21 words
A device according to claim 1, wherein: said superconducting regions have transition temperatures higher than the boiling temperature of liquid nitrogen.
Claim 4
Dependent Claim
28 words
A device according to claim 1, wherein: at least one of said superconducting regions is connected by conductive bridges to at least 2 other of said superconducting regions.
References Cited (Backward Citations)
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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) | 1995-04-28 | 1995-10-28 | 1996-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-28 | 1999-10-28 | 2000-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-28 | 2003-10-28 | 2004-04-28 | $7700.00 | Window Closed / Lapsed |