blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability
Register Forum

2022.02.11

More...
blank News flashes

News flashes

New version of the European Patent Register - SPC information for Unitary Patents.

2024-03-06

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0657884

EP0657884 - Magnetic recording medium, method of producing it, and magnetic recording apparatus using it [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.07.1999
Database last updated on 21.05.2024
Most recent event   Tooltip09.07.1999No opposition filed within time limitpublished on 25.08.1999 [1999/34]
Applicant(s)For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku
Tokyo / JP
[N/P]
Former [1995/24]For all designated states
HITACHI, LTD.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo 100 / JP
Inventor(s)01 / Yonezawa, Seiji
2-6-11, Mejirodai
Hachioji-shi, Tokyo / JP
02 / Kataoka, Keiji
728-19, Imafuku
Kawagoe-shi, Saitama / JP
03 / Fukke, Hajime
5-8-15-201, Ochiai
Tama-shi, Toyko / JP
04 / Terasawa, Tsuneo
E-404, 2-32, Koyasucho
Hachioji-shi, Toyko / JP
05 / Kato, Keizo
1-48-18, Akatsukicho
Hachioji-shi, Toyko / JP
06 / Miyamoto, Harukazu
1-31-9-404, Josuihoncho
Kadaira-shi, Tokyo / JP
07 / Kinstätter, Klaus
Altenburger Strasse 85
D-8600 Bamberg / DE
08 / Ito, Masaru
3-9-16, Aihara
Sagamihara-shi, Kanagawa / JP
09 / Ohta, Norio
306-462, Shinkou
Iruma-shi, Saitama / JP
[1998/36]
Former [1995/24]01 / Yonezawa, Seiji
2-6-11, Mejirodai
Hachioji-shi, Tokyo / JP
02 / Kataoka, Keiji
728-19, Imafuku
Kawagoe-shi, Saitama / JP
03 / Fukke, Hajime
5-8-15-201, Ochiai
Tama-shi, Toyko / JP
04 / Terasawa, Tsuneo
E-404, 2-32, Koyasucho
Hachioji-shi, Toyko / JP
05 / Kato, Keizo
1-48-18, Akatsukicho
Hachioji-shi, Toyko / JP
06 / Miyamoto, Harukazu
1-31-9-404, Josuihoncho
Kadaira-shi, Tokyo / JP
07 / Kinstätter, Klaus
Altenburger Strasse 85
D-8600 Bamberg / DE
08 / Ito, Masaru
3-9-16, Aihara
Sagamihara-shi, Kanagawa / JP
09 / Ohta, Norio
306,462, Shinkou
Iruma-shi, Saitama / JP
Representative(s)Strehl Schübel-Hopf & Partner
Maximilianstrasse 54
80538 München / DE
[N/P]
Former [1995/24]Strehl Schübel-Hopf Groening & Partner
Maximilianstrasse 54
D-80538 München / DE
Application number, filing date95101862.111.01.1990
[1995/24]
Priority number, dateJP1989000273611.01.1989         Original published format: JP 273689
JP1989001763330.01.1989         Original published format: JP 1763389
JP1989003103413.02.1989         Original published format: JP 3103489
JP1989003822020.02.1989         Original published format: JP 3822089
JP1989006096715.03.1989         Original published format: JP 6096789
JP1989010162324.04.1989         Original published format: JP 10162389
JP1989015457019.06.1989         Original published format: JP 15457089
[1995/24]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0657884
Date:14.06.1995
Language:EN
[1995/24]
Type: B1 Patent specification 
No.:EP0657884
Date:02.09.1998
Language:EN
[1998/36]
Search report(s)(Supplementary) European search report - dispatched on:EP12.04.1995
ClassificationIPC:G11B20/12, G11B5/84, G11B5/858
[1995/24]
CPC:
B82Y10/00 (EP,US); G09B5/065 (EP,US); G11B19/02 (EP,US);
G11B20/1252 (EP,US); G11B27/034 (EP,US); G11B27/105 (EP,US);
G11B27/19 (EP,US); G11B27/28 (EP,US); G11B5/012 (EP,US);
G11B5/5526 (EP,US); G11B5/58 (EP,US); G11B5/596 (EP,US);
G11B5/59633 (EP,US); G11B5/62 (EP,US); G11B5/74 (EP,US);
G11B5/743 (EP,US); G11B5/82 (EP,US); G11B5/84 (EP,US);
G11B5/855 (EP,US); G11B2020/1259 (EP,US); G11B2220/211 (EP,US);
G11B2220/2537 (EP,US) (-)
Designated contracting statesDE,   FR,   GB [1995/24]
TitleGerman:Verfahren zum magnetischen Aufzeichnen und Wiedergeben von Daten, magnetischer Auzeichnungsträger, sein Herstellungsverfahren und Gerät zur magnetischen Aufzeichnung[1995/24]
English:Magnetic recording medium, method of producing it, and magnetic recording apparatus using it[1995/24]
French:Procédé pour l'enregistrement magnétique et la lecture de données, milieu d'eregistrement, son procédé de production et appareil d'enregistrement magnétique[1995/24]
Examination procedure28.02.1995Examination requested  [1995/24]
04.09.1996Despatch of a communication from the examining division (Time limit: M06)
14.03.1997Reply to a communication from the examining division
16.10.1997Despatch of communication of intention to grant (Approval: Yes)
06.03.1998Communication of intention to grant the patent
10.06.1998Fee for grant paid
10.06.1998Fee for publishing/printing paid
Parent application(s)   TooltipEP90100547.0  / EP0378222
Opposition(s)03.06.1999No opposition filed within time limit [1999/34]
Fees paidRenewal fee
28.02.1995Renewal fee patent year 03
28.02.1995Renewal fee patent year 04
28.02.1995Renewal fee patent year 05
28.02.1995Renewal fee patent year 06
29.01.1996Renewal fee patent year 07
27.01.1997Renewal fee patent year 08
27.01.1998Renewal fee patent year 09
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[X]JPS58111130  ;
 [X]EP0120990  (IBM [US]) [X] 6 * page 1, paragraph 2 * * page 3, paragraph 3 - paragraph 4 ** figures 1-4 *;
 [X]FR2617627  (SONY CORP [JP]) [X] 1,2;
 [XP]GB2206723  (SONY CORP) [XP] 1,2 * page 1, line 18 - page 1, line 29 * * page 3, line 35 - page 4, line 18 * * page 5, line 1 - line 12 *
 [X]  - PATENT ABSTRACTS OF JAPAN, (19830924), vol. 7, no. 216, Database accession no. (P - 225), & JP58111130 A 19830702 (SHIN SHIGRO ET AL.) [X] 1 * abstract *
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.