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Extract from the Register of European Patents

EP About this file: EP0430237

EP0430237 - Bipolar device in which carrier lifetime is controlled [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  20.10.1993
Database last updated on 22.01.2025
Most recent event   Tooltip17.11.1994Change - applicantpublished on 04.01.1995 [1995/01]
Applicant(s)For all designated states
Kabushiki Kaisha Toshiba
72, Horikawa-cho, Saiwai-ku Kawasaki-shi
Kanagawa-ken 210-8572 / JP
[N/P]
Former [1995/01]For all designated states
KABUSHIKI KAISHA TOSHIBA
72, Horikawa-cho, Saiwai-ku
Kawasaki-shi, Kanagawa-ken 210, Tokyo / JP
Former [1991/23]For all designated states
Kabushiki Kaisha Toshiba
72, Horikawa-cho Saiwai-ku
Kawasaki-shi / JP
Inventor(s)01 / Tsunoda, Tetsujiro, c/o Intellectual Prop. Div.
Kabushiki Kaisha Toshiba, 1-1 Shibaura 1-chome
Minato-ku, Tokyo 105 / JP
[1991/23]
Representative(s)Lehn, Werner, et al
Hoffmann Eitle, Patent- und Rechtsanwälte, Postfach 81 04 20
81904 München / DE
[N/P]
Former [1991/23]Lehn, Werner, Dipl.-Ing., et al
Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20
D-81904 München / DE
Application number, filing date90122850.229.11.1990
[1991/23]
Priority number, dateJP1989031133330.11.1989         Original published format: JP 31133389
[1991/23]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0430237
Date:05.06.1991
Language:EN
[1991/23]
Search report(s)(Supplementary) European search report - dispatched on:EP12.03.1991
ClassificationIPC:H01L29/32
[1991/23]
CPC:
H01L21/263 (EP); H10D18/00 (KR); H10D12/441 (EP);
H10D18/60 (EP); H10D62/53 (EP)
Designated contracting statesDE,   FR,   GB [1991/23]
TitleGerman:Bipolar-Bauelement, in welchem die Ladungsträgerlebensdauer kontrolliert wird[1991/23]
English:Bipolar device in which carrier lifetime is controlled[1991/23]
French:Dispositif bipolaire pour lequel la durée de vie des porteurs de change est contrôlée[1991/23]
File destroyed:12.06.1999
Examination procedure29.11.1990Examination requested  [1991/23]
28.01.1993Despatch of a communication from the examining division (Time limit: M04)
08.06.1993Application deemed to be withdrawn, date of legal effect  [1993/49]
07.07.1993Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1993/49]
Fees paidRenewal fee
09.10.1992Renewal fee patent year 03
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Documents cited:Search[X]JP60207376  ;
 [A]DE3339393  (LICENTIA GMBH [DE]);
 [X]US4752818  (KUSHIDA TOMOYOSHI [JP], et al);
 [X]EP0297325  (MITSUBISHI ELECTRIC CORP [JP]);
 [X]FR2625043  (MATSUSHITA ELECTRIC WORKS LTD [JP]);
 [X]EP0327316  (TOSHIBA KK [JP])
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.