US4916335A
Expired / Lapsed
US
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Superconducting circuit
Assignee: Hitachi Ltd
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Filing: 1988-09-09
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Granted: 1990-04-10
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Expires: 2008-09-09
Abstract
Abstract There is provided a quantum flux parametron-type superconducting circuit in which a path with a Josephson device is connected in parallel with exciting inductors of the quantum flux parametron or inductors of exciting line magnetically coupled with the exciting inductors, thereby constructing a phase regulator.
Inventors
- 👤 Eiichi Goto
- 👤 Yutaka Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:25
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/195; H03K19/1952; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86; Y10S505/861; Y10S505/865
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
A quantum flux parametron-type superconducting circuit comprising a superconducting loop including two Josephson devices and two exciting inductors, a load inductor connected to the superconducting loop and other inductors magnetically coupled with said exciting inductors, said circuit including a path with a Josephson device which is connected in parallel with said exciting inductors or said other inductors.
Claim 2
Dependent Claim
57 words
A quantum flux parametron-type superconducting circuit comprising a superconducting loop including two Josephson devices and two exciting inductors, a load inductor connected to the superconducting loop and other inductors magnetically coupled with said exciting inductors, said circuit including a path with a Josephson device which is connected in parallel with said exciting inductors or said other inductors.
Claim 3
Dependent Claim
30 words
The superconducting circuit set forth in the claim 1, in which said path is constructed by connecting a Josephson device in parallel with the series connection of said exciting inductors.
Claim 4
Dependent Claim
30 words
The superconducting circuit set forth in the claim 1, in which said path is constructed by connecting a Josephson device in parallel with the series connection of said other inductors.
Claim 5
Dependent Claim
37 words
The superconducting circuit set forth in the claim 1, in which said path is constructed by connecting a serial connection of a Josephson device and a constant phase generator in parallel with each of said exciting inductors.
Claim 6
Dependent Claim
37 words
The superconducting circuits set forth in the claim 1, in which said path is constructed by connecting a series connection of a Josephson device and a constant phase generator in parallel with each of said other inductors.
Claim 7
Dependent Claim
21 words
The superconducting circuit set forth in claim 1, in which resistors are connected in parallel with each of the Josephson devices.
References Cited (Backward Citations)
US4117503A
Cited
US4785426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |