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EP0318004
European procedure
Extract from the Register of European Patents
EP About this file: EP0318004
| EP0318004 - Magnetic recording medium [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 19.12.1996 Database last updated on 02.09.2024 | Most recent event Tooltip | 19.12.1996 | No opposition filed within time limit | published on 05.02.1997 [1997/06] | Applicant(s) | For all designated states Hitachi Maxell Ltd. No 1-1-88, Ushitora Ibaraki-shi Osaka-fu / JP | [1990/33] |
| Former [1989/22] | For all designated states HITACHI MAXELL LTD. 1-88 Ushitora-1-chome Ibaraki-shi Osaka / JP | Inventor(s) | 01 /
Maro, Tsuyoshi 1468-5, Furumagi Ishigemachi Yuki-gun Ibaraki-ken / JP | 02 /
Kitakami, Osamu 20-2, Kubogaoka-4-chome Moriyamachi Kitasoma-gun Ibaraki-ken / JP | 03 /
Fujiwara, Hideo 2-24-9, Keyakidai Moriyamachi Kitasoma-gun Ibaraki-ken / JP | [1989/22] | Representative(s) | Beetz & Partner mbB Patentanwälte Prinzregentenstraße 54 80538 München / DE | [N/P] |
| Former [1989/22] | Patentanwälte Beetz - Timpe - Siegfried Schmitt-Fumian - Mayr Steinsdorfstrasse 10 D-80538 München / DE | Application number, filing date | 88119591.1 | 24.11.1988 | [1989/22] | Priority number, date | JP19870298371 | 26.11.1987 Original published format: JP 29837187 | JP19880107302 | 28.04.1988 Original published format: JP 10730288 | JP19880272310 | 28.10.1988 Original published format: JP 27231088 | [1989/22] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0318004 | Date: | 31.05.1989 | Language: | EN | [1989/22] | Type: | A3 Search report | No.: | EP0318004 | Date: | 10.10.1990 | Language: | EN | [1990/41] | Type: | B1 Patent specification | No.: | EP0318004 | Date: | 07.02.1996 | [1996/06] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 20.08.1990 | Classification | IPC: | G11B5/704, G11B5/64 | [1989/22] | CPC: |
G11B5/702 (EP,US);
G11B5/7028 (EP);
G11B5/70605 (EP);
G11B5/725 (EP);
G11B5/7371 (EP,US);
Y10S428/90 (EP,US);
| Designated contracting states | DE, FR [1989/22] | Title | German: | Magnetischer Aufzeichnungsträger | [1989/22] | English: | Magnetic recording medium | [1989/22] | French: | Milieu d'enregistrement magnétique | [1989/22] | Examination procedure | 27.12.1990 | Examination requested [1991/09] | 26.02.1993 | Despatch of a communication from the examining division (Time limit: M06) | 07.09.1993 | Reply to a communication from the examining division | 26.05.1994 | Despatch of a communication from the examining division (Time limit: M06) | 23.11.1994 | Reply to a communication from the examining division | 03.04.1995 | Despatch of communication of intention to grant (Approval: No) | 03.08.1995 | Despatch of communication of intention to grant (Approval: later approval) | 08.08.1995 | Communication of intention to grant the patent | 30.10.1995 | Fee for grant paid | 30.10.1995 | Fee for publishing/printing paid | Opposition(s) | 08.11.1996 | No opposition filed within time limit [1997/06] | Fees paid | Renewal fee | 22.11.1990 | Renewal fee patent year 03 | 28.11.1991 | Renewal fee patent year 04 | 25.11.1992 | Renewal fee patent year 05 | 26.11.1993 | Renewal fee patent year 06 | 29.11.1994 | Renewal fee patent year 07 | 30.11.1995 | Renewal fee patent year 08 |
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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]DE3714358 (TDK CORP [JP]); | [A]US4072781 (SHIRAHATA RYUJI, et al) | [A] - IEEE TRANSACTIONS ON MAGNETICS, vol. MAG-23, no. 5 (part II of two parts), September 1987, pages 3651-3654, IEEE, New York, US; K. INOUE et al.: "Co-Cr-W-C- alloy thin films for perpendicular recording media" |