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Extract from the Register of European Patents

EP About this file: EP0706243

EP0706243 - Distributed feedback semiconductor laser and method for producing the same [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  05.11.2004
Database last updated on 31.08.2024
Most recent event   Tooltip19.06.2009Change - representativepublished on 22.07.2009  [2009/30]
Applicant(s)For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
1006, Oaza Kadoma Kadoma-shi Osaka
571-8501 / JP
[2008/47]
Former [1996/15]For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
1006, Ohaza Kadoma
Kadoma-shi, Osaka 571 / JP
Inventor(s)01 / Kito, Masahiro
A-201, 2-23, Higashitoyonaka-cho
Toyonaka-shi, Osaka / JP
02 / Matsui, Yasushi
8-23, Kansozuka-cho
Neyagawa-shi, Osaka / JP
03 / Ishino, Masato
5-7-1-6, Tawara-dai
Shijyonawate-shi, Osaka / JP
04 / Nakamura, Shinji
1-4-14, Asukano-minami
Ikoma-shi, Nara-ken / JP
05 / Otsuka, Nobuyuki
148-18, Aza Nakamichi, Sasabe
Kawanishi-shi, Hyogo-ken / JP
[1996/15]
Representative(s)Kügele, Bernhard, et al
Novagraaf International SA
Chemin de l'Echo 3
1213 Onex / CH
[N/P]
Former [2009/30]Kügele, Bernhard, et al
Novagraaf International SA Avenue de Pailly 25
1220 Les Avanchets-Genève / CH
Former [1996/15]Kügele, Bernhard, et al
NOVAPAT-CABINET CHEREAU, 9, Rue du Valais
CH-1202 Genève / CH
Application number, filing date95115272.728.09.1995
[1996/15]
Priority number, dateJP1994023383728.09.1994         Original published format: JP 23383794
JP1995001686303.02.1995         Original published format: JP 1686395
[1996/15]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0706243
Date:10.04.1996
Language:EN
[1996/15]
Type: A3 Search report 
No.:EP0706243
Date:13.11.1996
[1996/46]
Search report(s)(Supplementary) European search report - dispatched on:EP24.09.1996
ClassificationIPC:H01S3/00, H01S3/085, H01S3/025, H01L21/208, H01L21/20, C30B25/12, G02B6/12
[1996/15]
CPC:
B82Y20/00 (EP,US); H01L21/02392 (EP,US); H01L21/0243 (EP,US);
H01L21/02461 (EP,US); H01L21/02463 (EP,US); H01L21/02505 (EP,US);
H01L21/02513 (EP,US); H01L21/02543 (EP,US); H01L21/02546 (EP,US);
H01L21/0262 (EP,US); H01S5/0265 (EP,US); H01S5/12 (EP,US);
H01S5/1228 (EP,US); H01S5/125 (EP,US); H01S5/06256 (EP,US);
H01S5/1231 (EP,US); H01S5/2077 (EP,US); H01S5/2081 (EP,US);
H01S5/2272 (EP,US); H01S5/2275 (EP,US); H01S5/32391 (EP,US);
H01S5/34306 (EP,US); H01S5/3434 (EP,US); H01S5/34373 (EP,US) (-)
Designated contracting statesDE,   FR,   GB [1996/15]
TitleGerman:Halbleiterlaser mit verteilter Rückkopplung und Herstellungsverfahren[1996/15]
English:Distributed feedback semiconductor laser and method for producing the same[1996/15]
French:Laser à semi-conducteur à réflecteur distribué et méthode de fabrication[1996/15]
Examination procedure19.10.1995Examination requested  [1996/15]
31.10.2000Despatch of a communication from the examining division (Time limit: M04)
16.02.2001Reply to a communication from the examining division
20.07.2001Despatch of a communication from the examining division (Time limit: M06)
17.01.2002Reply to a communication from the examining division
14.11.2002Despatch of a communication from the examining division (Time limit: M04)
12.03.2003Reply to a communication from the examining division
04.02.2004Despatch of a communication from the examining division (Time limit: M04)
15.06.2004Application deemed to be withdrawn, date of legal effect  [2004/52]
19.07.2004Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2004/52]
Divisional application(s)EP01103522.7  / EP1130715
EP01103523.5  / EP1130716
Fees paidRenewal fee
08.09.1997Renewal fee patent year 03
16.09.1998Renewal fee patent year 04
20.09.1999Renewal fee patent year 05
06.09.2000Renewal fee patent year 06
06.09.2001Renewal fee patent year 07
24.09.2002Renewal fee patent year 08
17.09.2003Renewal fee patent year 09
Penalty fee
Additional fee for renewal fee
30.09.200410   M06   Not yet paid
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Documents cited:Search[XA]JPH02159086  ;
 [A]JPH01106489  ;
 [A]JPH02143580  ;
 [XA]JPH03147386  ;
 [A]JPH06164051  ;
 [Y]JPH03145780  ;
 [A]GB2146259  (NEC CORP) [A] 20-22,29 * the whole document *;
 [A]EP0507956  (OPTICAL MEASUREMENT TECHNOLOGY [JP]) [A] 1,3,4,11-13,20,21,24,25,27,30,31,33,35 * page 8, column 33 - page 9, column 40; figure 6 *;
 [XA]EP0513745  (CSELT CENTRO STUDI LAB TELECOM [IT]) [X] 1,24,30 * the whole document * [A] 11-13,27;
 [A]EP0601890  (FURUKAWA ELECTRIC CO LTD [JP]) [A] 20,21,29 * column 5 *;
 [PX]DE4429586  (MATSUSHITA ELECTRIC IND CO LTD [JP]) [PX] 1-4,24-26,28 * the whole document *;
 [XA]  - PATENT ABSTRACTS OF JAPAN, (19900907), vol. 014, no. 414, Database accession no. (E - 0975), & JP02159086 A 19900619 (FUJITSU LTD) [X] 1-3,5,6,24,25,28,30-34 * abstract * [A] 7-12,14,15,20,21,27,29,35-37,39-55
 [A]  - PATENT ABSTRACTS OF JAPAN, (19890803), vol. 013, no. 346, Database accession no. (E - 798), & JP01106489 A 19890424 (FUJITSU LTD) [A] 1,24,30 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19900823), vol. 014, no. 391, Database accession no. (E - 0968), & JP02143580 A 19900601 (FURUKAWA ELECTRIC CO LTD:THE) [A] 1,24,30 * abstract *
 [A]  - TANBUN-EK T ET AL, "EFFECTS OF STRAIN IN MULTIPLE QUANTUM WELL DISTRIBUTED FEEDBACK LASERS", APPLIED PHYSICS LETTERS, (19901119), vol. 57, no. 21, pages 2184 - 2186, XP000178217 [A] 1,7-9 * the whole document *

DOI:   http://dx.doi.org/10.1063/1.103929
 [A]  - HUANG K H ET AL, "GROWTH AND PROPERTIES OF INASP ALLOYS PREPARED BY ORGANOMETALLIC VAPOR PHASE EPITAXY", JOURNAL OF CRYSTAL GROWTH, (19881002), vol. 92, no. 3/04, pages 547 - 552, XP000072992 [A] 20,21,29 * the whole document *

DOI:   http://dx.doi.org/10.1016/0022-0248(88)90040-1
 [XA]  - PATENT ABSTRACTS OF JAPAN, (19910918), vol. 015, no. 371, Database accession no. (E - 1113), & JP03147386 A 19910624 (CANON INC) [X] 39,43,44,49,50 * abstract * [A] 40,45-48,51-55
 [A]  - MASAHIRO AOKI ET AL, "INGAAS/INGAASP MQW ELECTROABSORPTION MODULATOR INTEGRATED WITH A DFB LASER FABRICATED BY BAND-GAP ENERGY CONTROL SELECTIVE AREA MOCVD", IEEE JOURNAL OF QUANTUM ELECTRONICS, (19930601), vol. 29, no. 6, pages 2088 - 2096, XP000397650 [A] 39-59 * figure 8 *

DOI:   http://dx.doi.org/10.1109/3.234473
 [A]  - SI W ET AL, "THEORETICAL ANALYSIS OF DFB LASER INTEGRATED WITH EA MODULATOR", INTERNATIONAL CONFERENCE ON SOLID STATE DEVICES AND MATERIALS, (19940823), pages 247 - 249, XP000543911 [A] 39,52-55 * the whole document *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19940908), vol. 018, no. 480, Database accession no. (E - 1603), & JP06164051 A 19940610 (MITSUBISHI ELECTRIC CORP) [A] 39,52-55 * abstract *
 [YA]  - T. SASAKI ET AL, "10 wavelength MQW-DBR lasers fabricated by selective MOVPE growth", ELECTRONICS LETTERS, STEVENAGE GB, (19940512), vol. 30, no. 10, pages 785 - 786, XP002013388 [Y] 56-59 * the whole document * [A] 40-55
 [Y]  - PATENT ABSTRACTS OF JAPAN, (19910917), vol. 015, no. 367, Database accession no. (E - 1112), & JP03145780 A 19910620 (MITSUBISHI ELECTRIC CORP) [Y] 56-59 * abstract *
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