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EP0418871
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EP About this file: EP0418871
| EP0418871 - Wide-band optical fiber coupler and its manufacturing method [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 29.09.1993 Database last updated on 30.07.2024 | Most recent event Tooltip | 29.09.1993 | Application deemed to be withdrawn | published on 18.11.1993 [1993/46] | Applicant(s) | For all designated states Japan Aviation Electronics Industry, Limited 21-2, Dogenzaka 1-chome Shibuya-ku Tokyo / JP | For all designated states NIPPON TELEGRAPH AND TELEPHONE CORPORATION 1-6 Uchisaiwaicho 1-chome Chiyoda-ku Tokyo / JP | [N/P] |
| Former [1991/13] | For all designated states JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED 21-6, Dogenzaka 1-chome Shibuya-ku Tokyo / JP | ||
| For all designated states NIPPON TELEGRAPH AND TELEPHONE CORPORATION 1-6 Uchisaiwaicho 1-chome Chiyoda-ku Tokyo / JP | Inventor(s) | 01 /
Sasaki, Hiroyuki, c/o Japan Aviation Electronics Ind. Ltd., 21-6 Dogenzaka 1-chome, Shibuya-ku Tokyo / JP | 02 /
Takeuchi, Yoshiaki 2057-52-3-101, Senbacho Mito-shi, Ibaragi / JP | 03 /
Hanafusa, Hiroaki 3-54, Hirasucho Mito-shi, Ibaragi / JP | 04 /
Noda, Juichi 2-4-7-402 Higashihara Mito-shi, Ibaragi / JP | 05 /
Shimamura, Masato, c/o Japan Aviation Electronics Ind. Ltd., 21-6, Dogenzaka 1-chome, Shibuya-ku Tokyo / JP | [1991/13] | Representative(s) | Blumbach Weser Bergen Kramer Zwirner Hoffmann Patentanwälte Radeckestrasse 43 81245 München / DE | [N/P] |
| Former [1991/13] | Blumbach Weser Bergen Kramer Zwirner Hoffmann Patentanwälte Radeckestrasse 43 D-81245 München / DE | Application number, filing date | 90118050.5 | 19.09.1990 | [1991/13] | Priority number, date | JP19890243979 | 20.09.1989 Original published format: JP 24397989 | [1991/13] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0418871 | Date: | 27.03.1991 | Language: | EN | [1991/13] | Type: | A3 Search report | No.: | EP0418871 | Date: | 15.05.1991 | Language: | EN | [1991/20] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 27.03.1991 | Classification | IPC: | G02B6/28 | [1991/13] | CPC: |
G02B6/2835 (EP,US)
| Designated contracting states | DE, FR, GB, IT [1991/13] | Title | German: | Breitbandiger optischer Faserkoppler und Herstellungsverfahren | [1991/13] | English: | Wide-band optical fiber coupler and its manufacturing method | [1991/13] | French: | Coupleur à fibres optiques à large bande et méthode pour sa fabrication | [1991/13] | File destroyed: | 12.06.1999 | Examination procedure | 19.09.1990 | Examination requested [1991/13] | 29.12.1992 | Despatch of a communication from the examining division (Time limit: M04) | 11.05.1993 | Application deemed to be withdrawn, date of legal effect [1993/46] | 11.06.1993 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time [1993/46] | Fees paid | Renewal fee | 30.09.1992 | Renewal fee patent year 03 |
| 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. | Documents cited: | Search | [XP]WO9008968 (ASTER CORP [US]); | [A]DE2822022 (CANADIAN PATENTS DEV); | [A]EP0234665 (PLESSEY OVERSEAS [GB]); | [A]US4798438 (MOORE DOUGLAS [US], et al) | [Y] - APPLIED OPTICS vol. 25, no. 19, 1 October 1986, pages 3443-3447, New York, NY, US; K. IMOTO et al.: "Plastic optical fiber star coupler" | [Y] - ELECTRONICS LETTERS vol. 21, no. 17, 15 August 1985, pages 742,743, Stevenage, Herts, GB; D.B. MORTIMORE: "Wavelength-flattened fused couplers" |