Extract from the Register of European Patents

EP About this file: EP0069534

EP0069534 - Superconducting logic circuit [Right-click to bookmark this link]
Former [1983/02]Superconducting logic circuit and superconducting switching device therefor
[1987/03]
StatusNo opposition filed within time limit
Status updated on  20.11.1987
Database last updated on 08.04.2026
Most recent event   Tooltip31.07.2009Change - representativepublished on 02.09.2009  [2009/36]
Applicant(s)For all designated states
Hitachi, Ltd.
5-1, Marunouchi 1-chome
Chiyoda-ku
Tokyo 100 / JP
[N/P]
Former [1983/02]For all designated states
Hitachi, Ltd.
5-1, Marunouchi 1-chome
Chiyoda-ku, Tokyo 100 / JP
Inventor(s)01 / Kotera, Nobuo
2-18-3-301, Minami-cho
Kokubunji-shi Tokyo / JP
02 / Hatano, Juji
4-1-2, Hiyoshi-cho
Kokubunji-shi Tokyo / JP
03 / Asano, Atsushi
1-47-3-F302, Akatsuki-cho
Hachioji-shi Tokyo / JP
04 / Kawabe, Ushio
1-8-46, Sakae-cho Hamuramachi
Nishitama-gun Tokyo / JP
[1983/02]
Representative(s)Calderbank, Thomas Roger, et al
Mewburn Ellis LLP
City Tower
40 Basinghall Street
London EC2V 5DE / GB
[N/P]
Former [2009/36]Calderbank, Thomas Roger, et al
Mewburn Ellis LLP 33 Gutter Lane London
EC2V 8AS / GB
Former [1983/02]Calderbank, Thomas Roger, et al
MEWBURN ELLIS York House 23 Kingsway
London WC2B 6HP / GB
Application number, filing date82303428.530.06.1982
[1983/02]
Priority number, dateJP1981010122101.07.1981         Original published format: JP 10122181
[1983/02]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0069534
Date:12.01.1983
Language:EN
[1983/02]
Type: A3 Search report 
No.:EP0069534
Date:31.08.1983
Language:EN
[1983/35]
Type: B1 Patent specification 
No.:EP0069534
Date:14.01.1987
Language:EN
[1987/03]
Search report(s)(Supplementary) European search report - dispatched on:EP28.06.1983
ClassificationIPC:H03K19/195, H03K17/92
[1983/02]
CPC:
H03K19/1956 (EP,US); H03K17/92 (EP,US); Y10S505/858 (EP,US);
Y10S505/861 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL [1983/02]
TitleGerman:Supra-leitende-logische Schaltung[1987/03]
English:Superconducting logic circuit[1987/03]
French:Circuit logique supra-conducteur[1987/03]
Former [1983/02]Supra-leitende-logische Schaltung und supra-leitende Schaltvorrichtung dafür
Former [1983/02]Superconducting logic circuit and superconducting switching device therefor
Former [1983/02]Circuit logique supra-conducteur et dispositif de commutation supra-conducteur pour celui-ci
Examination procedure13.08.1982Examination requested  [1983/02]
28.12.1984Despatch of a communication from the examining division (Time limit: M06)
04.07.1985Reply to a communication from the examining division
04.04.1986Despatch of communication of intention to grant (Approval: )
17.07.1986Communication of intention to grant the patent
15.08.1986Fee for grant paid
15.08.1986Fee for publishing/printing paid
Opposition(s)15.10.1987No opposition filed within time limit [1988/01]
Fees paidRenewal fee
20.06.1984Renewal fee patent year 03
19.06.1985Renewal fee patent year 04
20.06.1986Renewal fee patent year 05
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Documents cited:Search[A]   IBM TECHNICAL DISCLOSURE BULLETIN, vol. 24, no. 1B, June 1981, pages 736-737, New York, USA [A]
 [A]   JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 19, suppl. 19-1, 1980, pages 607-611, Tokyo, JP. [A]
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