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: EP0220731

EP0220731 - A method of distributed file recovery and a system using the method [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.01.1996
Database last updated on 29.06.2024
Most recent event   Tooltip08.01.1996No opposition filed within time limitpublished on 07.02.1996 [1996/06]
Applicant(s)For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku
Tokyo / JP
[N/P]
Former [1987/19]For all designated states
HITACHI, LTD.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo 100 / JP
Inventor(s)01 / Kawakami, Setsuo
Chishinryo 214 33-2, Nishinarusawacho-1-chome
Hitachi-shi / JP
02 / Koizumi, Minoru
Pasutoraru Azamino 505 9-22, Azamino-1-chome
Midori-ku Yokohama / JP
03 / Mori, Kinji
569-1-7-408, Kamoshidacho
Midori-ku Yokohama / JP
04 / Nakai, Kozo
2920-59, Mukaino
Mawatari Katsuta-shi / JP
05 / Kasashima, Hirokazu
16-9, Kanesawacho-2-chome
Hitachi-shi / JP
06 / Suzuki, Yasuo
352-13, Imazato
Ebina-shi / JP
07 / Kawano, Katsumi
15-61, Harumicho-1-chome
Fuchu-shi / JP
08 / Orimo, Masayuki
Sky Rejidensu 203
256-1, Miwamachi Machida-shi / JP
[1987/19]
Representative(s)Strehl Schübel-Hopf & Partner
Maximilianstrasse 54
80538 München / DE
[N/P]
Former [1987/19]Strehl Schübel-Hopf Groening & Partner
Maximilianstrasse 54
D-80538 München / DE
Application number, filing date86115045.629.10.1986
[1987/19]
Priority number, dateJP1985024141630.10.1985         Original published format: JP 24141685
[1987/19]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0220731
Date:06.05.1987
Language:EN
[1987/19]
Type: A3 Search report 
No.:EP0220731
Date:19.07.1989
Language:EN
[1989/29]
Type: B1 Patent specification 
No.:EP0220731
Date:15.02.1995
Language:EN
[1995/07]
Search report(s)(Supplementary) European search report - dispatched on:EP31.05.1989
ClassificationIPC:G06F17/30, G06F15/16
[1995/07]
CPC:
G06F11/1435 (EP,US); G06F13/14 (KR); G06F16/152 (EP,US)
Former IPC [1987/19]G06F15/40, G06F15/16
Designated contracting statesDE,   FR,   GB [1987/19]
TitleGerman:Verfahren zur Wiedergewinnung verteilter Dateien und System zur Anwendung des Verfahrens[1987/19]
English:A method of distributed file recovery and a system using the method[1987/19]
French:Méthode pour le recouvrement de fichiers répartis et système utilisant la méthode[1987/19]
Examination procedure05.01.1990Examination requested  [1990/10]
26.06.1991Despatch of a communication from the examining division (Time limit: M08)
21.02.1992Reply to a communication from the examining division
15.01.1993Despatch of a communication from the examining division (Time limit: M06)
26.07.1993Reply to a communication from the examining division
05.04.1994Despatch of communication of intention to grant (Approval: Yes)
11.08.1994Communication of intention to grant the patent
26.10.1994Fee for grant paid
26.10.1994Fee for publishing/printing paid
Opposition(s)16.11.1995No opposition filed within time limit [1996/06]
Fees paidRenewal fee
28.10.1988Renewal fee patent year 03
27.10.1989Renewal fee patent year 04
30.10.1990Renewal fee patent year 05
29.10.1991Renewal fee patent year 06
29.10.1992Renewal fee patent year 07
28.10.1993Renewal fee patent year 08
27.10.1994Renewal 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[Y]DE3148773  (HITACHI LTD [JP])
 [Y]  - ACM TRANSACTIONS ON DATABASE SYSTEMS, vol. 2, no. 1, mars 1977, pages 91-104; R.A. LORIE: "Physical integrity in a large segmented database"
 [A]  - THE FIRST INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATION, Washington, 24th-26th October 1972, pages 364-370, A.C.M., New York, US; D.J. FARBER et al.: "The structure of a distributed computer system - the distributed file system"
 [A]  - IEEE TRANSACTIONS ON SOFTWARE ENGINEERING, vol. SE-10, no. 6, November 1984, pages 645-649, IEEE, New York, US; R. ATTAR et al.: "Site initialization, recovery, and backup in a distributed database system"
 [A]  - COMPUTING SURVEYS, vol. 13, no. 2, June 1981, pages 149-183, A.C.M., US; W.H. KOHLER: "A survey of techniques for synchronization and recovery in decentralized computer systems"
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.