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EP0536421
European procedure
Extract from the Register of European Patents
EP About this file: EP0536421
| EP0536421 - METHOD OF PRODUCING A RARE EARTH PERMANENT MAGNET [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 05.06.1998 Database last updated on 19.10.2024 | Most recent event Tooltip | 05.06.1998 | No opposition filed within time limit | published on 22.07.1998 [1998/30] | Applicant(s) | For all designated states Seiko Epson Corporation 4-1, Nishi-Shinjuku 2-chome Shinjuku-ku Tokyo 163-0811 / JP | [N/P] |
| Former [1993/15] | For all designated states SEIKO EPSON CORPORATION 4-1, Nishishinjuku 2-chome Shinjuku-ku Tokyo 163 / JP | Inventor(s) | 01 /
TAKAGI, Fumio Seiko Epson Corporation, 3-5, Owa 3-chome Suwa-shi, Nagano-ken 392 / JP | 02 /
KOBAYASHI, Osamu Seiko Epson Corporation, 3-5, Owa 3-chome Suwa-shi, Nagano-ken 392 / JP | 03 /
ARAI, Akira Seiko Epson Corporation, 3-5, Owa 3-chome Suwa-shi, Nagano-ken 392 / JP | 04 /
IHARA, Seiji Seiko Epson Corporation, 3-5, Owa 3-chome Suwa-shi, Nagano-ken 392 / JP | 05 /
AKIOKA, Koji Seiko Epson Corporation, 3-5, Owa 3-chome Suwa-shi, Nagano-ken 392 / JP | [1993/15] | Representative(s) | Sturt, Clifford Mark Miller Sturt Kenyon 9 John Street London WC1N 2ES / GB | [N/P] |
| Former [1993/15] | Sturt, Clifford Mark J. MILLER & CO. 34 Bedford Row Holborn London WC1R 4JH / GB | Application number, filing date | 92909543.8 | 22.04.1992 | [1993/15] | WO1992JP00521 | Priority number, date | JP19910095692 | 25.04.1991 Original published format: JP 9569291 | JP19920036614 | 24.02.1992 Original published format: JP 3661492 | JP19920036615 | 24.02.1992 Original published format: JP 3661592 | JP19920036616 | 24.02.1992 Original published format: JP 3661692 | JP19920037741 | 25.02.1992 Original published format: JP 3774192 | [1993/15] | Filing language | JA | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO9220081 | Date: | 12.11.1992 | Language: | EN | [1992/28] | Type: | A1 Application with search report | No.: | EP0536421 | Date: | 14.04.1993 | Language: | EN | The application published by WIPO in one of the EPO official languages on 12.11.1992 takes the place of the publication of the European patent application. | [1993/15] | Type: | B1 Patent specification | No.: | EP0536421 | Date: | 30.07.1997 | Language: | EN | [1997/31] | Search report(s) | International search report - published on: | JP | 12.11.1992 | (Supplementary) European search report - dispatched on: | EP | 30.11.1993 | Classification | IPC: | H01F41/02, H01F1/04, H01F1/053 | [1993/47] | CPC: |
H01F1/0576 (EP,US);
H01F41/028 (EP,US)
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| Former IPC [1993/15] | H01F41/02, H01F1/04 | Designated contracting states | DE, FR, GB [1993/15] | Title | German: | VERFAHREN ZUR HERSTELLUNG EINES PERMANENTMAGNETES AUS SELTENEN ERDEN | [1993/15] | English: | METHOD OF PRODUCING A RARE EARTH PERMANENT MAGNET | [1993/15] | French: | PROCEDE DE PRODUCTION D'UN AIMANT PERMANENT COMPOSE DE TERRES RARES | [1993/15] | Entry into regional phase | 26.11.1992 | Translation filed | 14.12.1992 | National basic fee paid | 14.12.1992 | Search fee paid | 14.12.1992 | Designation fee(s) paid | 30.04.1993 | Examination fee paid | Examination procedure | 30.04.1993 | Examination requested [1993/26] | 28.08.1995 | Despatch of a communication from the examining division (Time limit: M04) | 21.12.1995 | Reply to a communication from the examining division | 25.06.1996 | Despatch of communication of intention to grant (Approval: Yes) | 30.10.1996 | Communication of intention to grant the patent | 21.01.1997 | Fee for grant paid | 21.01.1997 | Fee for publishing/printing paid | Opposition(s) | 05.05.1998 | No opposition filed within time limit [1998/30] | Fees paid | Renewal fee | 28.04.1994 | Renewal fee patent year 03 | 04.04.1995 | Renewal fee patent year 04 | 16.04.1996 | Renewal fee patent year 05 | 12.04.1997 | Renewal fee patent year 06 |
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| 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 | [A]JP01175207 ; | [E]JP04187722 ; | [A]US4780226 (SHEETS LOUIS E [US], et al) | [A] - PATENT ABSTRACTS OF JAPAN vol. 13, no. 450 (E-830)11 October 1989 & JP-A-01 175 207 ( SEIKO EPSON CORP. ) 11 July 1989, & JP01175207 A 19890711 | [E] - PATENT ABSTRACTS OF JAPAN vol. 16, no. 509 (C-0997)21 October 1992 & JP-A-04 187 722 ( SEIKO EPSON CORP. ) 6 July 1992, & JP04187722 A 19920706 | International search | [X]JPH01270210 (HITACHI METALS LTD); | [Y]JPH027505 (SEIKO EPSON CORP, et al); | [Y]JPH02297910 (FUJI ELECTROCHEMICAL CO LTD); | [Y]JPH02252222 (SEIKO EPSON CORP, et al); | [A]JPS609328B |