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Extract from the Register of European Patents

EP About this file: EP0481464

EP0481464 - Integrated optical branching/combining coupler and method of manufacturing such coupler [Right-click to bookmark this link]
Former [1992/17]Optical device with an optical coupler for effecting light branching/combining by splitting wavefront of light
[1999/01]
StatusNo opposition filed within time limit
Status updated on  03.11.2000
Database last updated on 20.05.2024
Most recent event   Tooltip26.12.2003Lapse of the patent in a contracting state
New state(s): GR		published on 11.02.2004  [2004/07]
Applicant(s)For all designated states
CANON KABUSHIKI KAISHA
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
[N/P]
Former [1992/17]For all designated states
CANON KABUSHIKI KAISHA
30-2, 3-chome, Shimomaruko, Ohta-ku
Tokyo / JP
Inventor(s)01 / Handa, Yuichi, c/o Canon Kabushiki Kaisha
3-30-2 Shimomaruko
Ohta-ku, Tokyo / JP
02 / Hasegawa, Mitsutoshi, c/o Canon Kabushiki Kaisha
3-30-2 Shimomaruko
Ohta-ku, Tokyo / JP
[1992/17]
Representative(s)Pellmann, Hans-Bernd
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4-6
80336 München / DE
[N/P]
Former [1992/17]Pellmann, Hans-Bernd, Dipl.-Ing.
Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4
D-80336 München / DE
Application number, filing date91117674.116.10.1991
[1992/17]
Priority number, dateJP1990027800317.10.1990         Original published format: JP 27800390
[1992/17]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0481464
Date:22.04.1992
Language:EN
[1992/17]
Type: A3 Search report 
No.:EP0481464
Date:23.09.1992
Language:EN
[1992/39]
Type: B1 Patent specification 
No.:EP0481464
Date:05.01.2000
Language:EN
[2000/01]
Search report(s)(Supplementary) European search report - dispatched on:EP05.08.1992
ClassificationIPC:G02B6/12, H01S3/085, H04B10/12, G02B6/28
[1992/39]
CPC:
H01S5/10 (EP,US); G02B6/125 (EP,US); G02B6/2817 (EP,US);
H01S5/026 (EP,US); H01S5/4056 (EP,US)
Former IPC [1992/17]G02B6/12, G02B6/28, H04B10/12
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1992/17]
TitleGerman:Integriert-optischer Koppler zum Verzweigen/Kombinieren von Licht und Verfahren zur Herstellung eines solchen Kopplers[1999/01]
English:Integrated optical branching/combining coupler and method of manufacturing such coupler[1999/01]
French:Coupler en optique intégrée pour effectuer une séparation/combinaison de lumière et méthode de fabrication d'un tel coupler[1999/01]
Former [1992/17]Optische Vorrichtung mit einem optischen Koppler zum Verzweigen/Kombinieren durch Spalten der Lichtwellenfront
Former [1992/17]Optical device with an optical coupler for effecting light branching/combining by splitting wavefront of light
Former [1992/17]Dispositif optique avec un coupleur optique pour effectuer une séparation/combinaison de lumière par division du front d'onde
Examination procedure09.02.1993Examination requested  [1993/14]
11.04.1995Despatch of a communication from the examining division (Time limit: M06)
13.10.1995Reply to a communication from the examining division
29.10.1996Despatch of a communication from the examining division (Time limit: M06)
02.05.1997Reply to a communication from the examining division
15.06.1998Despatch of a communication from the examining division (Time limit: M04)
14.10.1998Reply to a communication from the examining division
09.12.1998Despatch of communication of intention to grant (Approval: Yes)
15.04.1999Communication of intention to grant the patent
23.07.1999Fee for grant paid
23.07.1999Fee for publishing/printing paid
Opposition(s)06.10.2000No opposition filed within time limit [2000/51]
Fees paidRenewal fee
26.10.1993Renewal fee patent year 03
28.11.1994Renewal fee patent year 04
27.10.1995Renewal fee patent year 05
29.10.1996Renewal fee patent year 06
29.10.1997Renewal fee patent year 07
29.10.1998Renewal fee patent year 08
29.10.1999Renewal fee patent year 09
Penalty fee
Additional fee for renewal fee
31.10.199404   M06   Fee paid on   28.11.1994
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT05.01.2000
BE05.01.2000
CH05.01.2000
ES05.01.2000
GR05.01.2000
LI05.01.2000
NL05.01.2000
SE05.01.2000
DK05.04.2000
[2004/07]
Former [2003/45]AT05.01.2000
BE05.01.2000
CH05.01.2000
ES05.01.2000
LI05.01.2000
NL05.01.2000
SE05.01.2000
DK05.04.2000
Former [2003/07]AT05.01.2000
BE05.01.2000
CH05.01.2000
ES05.01.2000
LI05.01.2000
NL05.01.2000
SE05.01.2000
Former [2002/25]AT05.01.2000
BE05.01.2000
CH05.01.2000
ES05.01.2000
LI05.01.2000
SE05.01.2000
Former [2002/23]AT05.01.2000
BE05.01.2000
CH05.01.2000
LI05.01.2000
SE05.01.2000
Former [2001/08]AT05.01.2000
BE05.01.2000
CH05.01.2000
LI05.01.2000
Former [2000/52]CH05.01.2000
LI05.01.2000
Former [2000/50]CH10.04.2000
LI10.04.2000
Documents cited:Search[A]JP59216107  ;
 [X]EP0237237  (NORTHERN TELECOM LTD [CA]);
 [X]US4888785  (LEE TIEN-PEI [US]);
 [A]WO9002349  (RAYNET CORP [US]);
 [A]EP0362789  (CANON KK [JP])
 [A]  - PATENT ABSTRACTS OF JAPAN vol. 9, no. 86 (P-349)(1985) 16 April 1985 & JP-A-59 216 107 ( FUJITSU ) 6 December 1984, & JP59216107 A 19841206
 [AD]  - APPLIED PHYSICS LETTERS. vol. 52, no. 10, 7 March 1988, NEW YORK US pages 767 - 769; J. SALZMAN ET AL.: 'Cross coupled cavity semiconductor laser'
ExaminationEP0179507
    - IEEE Journal of Quantum Electronics, Vol. QE-18, July 1982, pages 1072-1077
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.