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Extract from the Register of European Patents

EP About this file: EP0293185

EP0293185 - Semiconductor laser device and method for manufacturing the same [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  03.12.1994
Database last updated on 25.09.2024
Most recent event   Tooltip03.12.1994No opposition filed within time limitpublished on 25.01.1995 [1995/04]
Applicant(s)For all designated states
Kabushiki Kaisha Toshiba
72, Horikawa-cho, Saiwai-ku Kawasaki-shi
Kanagawa-ken 210-8572 / JP
[N/P]
Former [1988/48]For all designated states
KABUSHIKI KAISHA TOSHIBA
72, Horikawa-cho, Saiwai-ku
Kawasaki-shi, Kanagawa-ken 210, Tokyo / JP
Inventor(s)01 / Morinaga, Motoyasu c/o Patent Division
Kabushiki Kaisha Toshiba 1-1 Shibaura 1-chome
Minato-ku Tokyo 105 / JP
02 / Furuyama, Hideto c/o Patent Division
Kabushiki Kaisha Toshiba 1-1 Shibaura 1-chome
Minato-ku Tokyo 105 / JP
03 / Nakamura, Masaru c/o Patent Division
Kabushiki Kaisha Toshiba 1-1 Shibaura 1-chome
Minato-ku Tokyo 105 / JP
04 / Suzuki, Nobuo c/o Patent Division
Kabushiki Kaisha Toshiba 1-1 Shibaura 1-chome
Minato-ku Tokyo 105 / JP
05 / Hirayama, Yuzo c/o Patent Division
Kabushiki Kaisha Toshiba 1-1 Shibaura 1-chome
Minato-ku Tokyo 105 / JP
06 / Okuda, Hajime c/o Patent Division
Kabushiki Kaisha Toshiba 1-1 Shibaura 1-chome
Minato-ku Tokyo 105 / JP
[1988/48]
Representative(s)Freed, Arthur Woolf, et al
Marks & Clerk Incorporating Edward Evans Barker 90 Long Acre
London WC2E 9RA / GB
[N/P]
Former [1988/48]Freed, Arthur Woolf, et al
MARKS & CLERK, 57-60 Lincoln's Inn Fields
London WC2A 3LS / GB
Application number, filing date88304737.525.05.1988
[1988/48]
Priority number, dateJP1987012694426.05.1987         Original published format: JP 12694487
JP1987020422319.08.1987         Original published format: JP 20422387
JP1987024084528.09.1987         Original published format: JP 24084587
[1988/48]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0293185
Date:30.11.1988
Language:EN
[1988/48]
Type: A3 Search report 
No.:EP0293185
Date:12.04.1989
Language:EN
[1989/15]
Type: B1 Patent specification 
No.:EP0293185
Date:02.02.1994
Language:EN
[1994/05]
Search report(s)(Supplementary) European search report - dispatched on:EP20.02.1989
ClassificationIPC:H01S3/19, H01L27/15, H01L33/00
[1988/48]
CPC:
H01S5/026 (US); H01S5/0261 (EP,US); H01S5/0422 (US);
H01S5/04257 (EP,US); H01S5/227 (EP,US); H01S5/0208 (EP,US);
H01S5/04256 (EP,US); H01S5/2275 (EP,US); H01S5/2277 (EP,US);
H01S5/32391 (EP,US) (-)
Designated contracting statesDE,   FR,   GB [1988/48]
TitleGerman:Halbleiterlaservorrichtung und Verfahren zu ihrer Herstellung[1988/48]
English:Semiconductor laser device and method for manufacturing the same[1988/48]
French:Dispositif laser à semi-conducteur et son procédé de fabrication[1988/48]
Examination procedure07.06.1988Examination requested  [1988/48]
27.01.1992Despatch of a communication from the examining division (Time limit: M04)
28.05.1992Reply to a communication from the examining division
29.10.1992Despatch of a communication from the examining division (Time limit: M04)
16.12.1992Reply to a communication from the examining division
15.03.1993Despatch of communication of intention to grant (Approval: Yes)
01.07.1993Communication of intention to grant the patent
06.10.1993Fee for grant paid
06.10.1993Fee for publishing/printing paid
Opposition(s)03.11.1994No opposition filed within time limit [1995/04]
Fees paidRenewal fee
16.05.1990Renewal fee patent year 03
17.12.1990Renewal fee patent year 04
11.05.1992Renewal fee patent year 05
10.05.1993Renewal fee patent year 06
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Documents cited:Search[A]JP61210689  ;
 [A]EP0208209  (NEC CORP [JP]);
 [A]US4366567  (FUKUZAWA TADASHI, et al);
 [A]US4468850  (LIAU ZONG-LONG [US], et al);
 [E]DE3713133  (SIEMENS AG [DE])
 [A]  - IEEE JOURNAL OF QUANTUM ELECTRONICS, vol. OE-22, no. 6, June 1986, pages 805-821, IEEE, New York, US; O. WADA et al.: "Recent progress in optoelectronic integrated circuits (OEIC's)"
 [A]  - ELECTRONIC LETTERS, vol. 20, no. 21, 11th October 1984, pages 856-857, Staines, Middlesex, GB; T.L. KOCH et al.: "Low-threshold high-speed 1.55 mum vapour phase transported buried heterostructure lasers (VPTBH)"
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 11, no. 46 (E-479)[2493], 12th February 1987; & JP-A-61 210 689 (FUJITSU LTD) 18-09-1986, & JP61210689 A 00000000
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.