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Extract from the Register of European Patents

EP About this file: EP0184034

EP0184034 - Perpendicular magnetic recording medium and method of producing same [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  16.11.1991
Database last updated on 04.06.2024
Most recent event   Tooltip16.11.1991No opposition filed within time limitpublished on 08.01.1992 [1992/02]
Applicant(s)For all designated states
SUMITOMO SPECIAL METALS CO., LTD.
4-7-19 Kitahama, Chuo-ku
Osaka / JP
[1989/43]
Former [1986/24]For all designated states
SUMITOMO SPECIAL METAL CO., LTD.
22, Kitahama 5-chome Higashi-ku
Osaka-shi Osaka 541 / JP
Inventor(s)01 / Suzuki, Takao
35-16 Kaigamori Aramaki
Sendai-shi Miyagi-ken / JP
02 / Sagawa, Masato
5-7 Imazato Sannotsubo
Nagaokakyo-shi Kyoto-fu / JP
[1986/24]
Representative(s)Diehl, Hermann O. Th., et al
Diehl & Partner GbR
Augustenstrasse 46
80333 München / DE
[N/P]
Former [1989/43]Diehl, Hermann, Dr. Dipl.-Phys., et al
DIEHL, GLÄSER, HILTL & PARTNER Patentanwälte Flüggenstrasse 13
D-80639 München / DE
Former [1986/24]Diehl, Hermann O. Th., Dr.
Diehl, Glaeser, Hiltl & Partner Postfach 19 03 65
D-80603 München / DE
Application number, filing date85114367.712.11.1985
[1986/24]
Priority number, dateJP1984023666112.11.1984         Original published format: JP 23666184
[1986/24]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0184034
Date:11.06.1986
Language:EN
[1986/24]
Type: A3 Search report 
No.:EP0184034
Date:04.05.1988
Language:EN
[1988/18]
Type: B1 Patent specification 
No.:EP0184034
Date:16.01.1991
Language:EN
[1991/03]
Search report(s)(Supplementary) European search report - dispatched on:EP14.03.1988
ClassificationIPC:G11B5/62, G11B5/64, G11B5/708, G11B11/03, G11C13/06
[1988/17]
CPC:
G11B5/657 (EP,US); Y10S428/90 (EP,US); Y10S428/928 (EP,US);
Y10T428/26 (EP,US); Y10T428/265 (EP,US)
Former IPC [1986/24]G11B5/62
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1986/24]
TitleGerman:Senkrecht magnetisiertes Aufzeichnungsmedium und Verfahren zu seiner Herstellung[1986/24]
English:Perpendicular magnetic recording medium and method of producing same[1986/24]
French:Milieu d'enregistrement magnétique perpendiculaire et sa méthode de fabrication[1986/24]
Examination procedure24.10.1988Examination requested  [1988/51]
16.05.1989Despatch of a communication from the examining division (Time limit: M04)
14.09.1989Reply to a communication from the examining division
08.11.1989Despatch of communication of intention to grant (Approval: No)
03.05.1990Despatch of communication of intention to grant (Approval: later approval)
13.07.1990Communication of intention to grant the patent
17.10.1990Fee for grant paid
17.10.1990Fee for publishing/printing paid
Opposition(s)17.10.1991No opposition filed within time limit [1992/02]
Fees paidRenewal fee
27.11.1987Renewal fee patent year 03
24.10.1988Renewal fee patent year 04
30.11.1989Renewal fee patent year 05
19.10.1990Renewal 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:SearchEP0051296  [ ] (DAIDO STEEL CO LTD [JP])
    [ ] - PATENT ABSTRACTS OF JAPAN, Unexamined Applications, E Section, Vol. 2, No. 32, February 28, 1978 The Patent Office Japanese Government page 12 353 E 77 * Kokai-No. 52-153 409 (Mitsubishi Denki K.K.) *
    [ ] - PATENT ABSTRACTS OF JAPAN, Unexamined Applications, E Section, Vol. 1, No. 98, August 31, 1977 The Patent Office Japanese Government page 2 882 E 77 * Kokai-No. 52-31 703 (Kokusai Denshindenwa K.K.) *
    [ ] - PATENT ABSTRACTS OF JAPAN, Unexamined Applications, E Section, Vol. 1, No. 117, October 6, 1977 The Patent Office Japanese Government page 4 696 E 77 * Kokai-No. 52-50 203 (Kokusai Denshin Denwa K.K.) *
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.