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

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0509423

EP0509423 - Optical recording medium [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.05.1998
Database last updated on 25.09.2024
Most recent event   Tooltip04.09.1998Lapse of the patent in a contracting statepublished on 21.10.1998 [1998/43]
Applicant(s)For all designated states
MITSUI TOATSU CHEMICALS, Inc.
2-5 Kasumigaseki 3-chome Chiyoda-Ku
Tokyo 100 / JP
[N/P]
Former [1992/43]For all designated states
MITSUI TOATSU CHEMICALS, Inc.
2-5 Kasumigaseki 3-chome
Chiyoda-Ku Tokyo 100 / JP
Inventor(s)01 / Koike, Tadashi
5-45, Dai 4-chome
Kamakura-shi, Kanagawa / JP
02 / Mizukuki, Tadahiko
37-4, Adachi 4-chome
Adachi-ku, Tokyo / JP
03 / Sasakawa, Tomoyoshi
14-7-702, Takasu 1-chome
Chiba-shi, Chiba / JP
04 / Suzuki, Yuko
2070-3-29, Iijima-machi, Sakae-ku
Yokohama-shi, Kanagawa / JP
05 / Shiina, Kouichi
2957, Nase-Machi, Totsuka-ku
Yokohama-shi, Kanagawa / JP
[1992/43]
Representative(s)Mai, Oppermann & Partner i.L.
Patentanwälte
Postfach 3929
65029 Wiesbaden / DE
[N/P]
Former [1997/44]Luderschmidt, Schüler & Partner GbR
Patentanwälte, Postfach 3929
65029 Wiesbaden / DE
Former [1992/43]Schüler, Horst, Dr.
Patentanwalt, Kaiserstrasse 69
D-60329 Frankfurt / DE
Application number, filing date92106324.412.04.1992
[1992/43]
Priority number, dateJP1991008378416.04.1991         Original published format: JP 8378491
[1992/43]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0509423
Date:21.10.1992
Language:EN
[1992/43]
Type: B1 Patent specification 
No.:EP0509423
Date:02.07.1997
Language:EN
[1997/27]
Search report(s)(Supplementary) European search report - dispatched on:EP22.07.1992
ClassificationIPC:G11B7/24, G11B7/26
[1992/43]
CPC:
G11B7/0938 (EP,US); G11B7/24027 (KR); G11B7/24 (EP,US);
G11B7/24079 (EP,US); G11B7/248 (EP,KR,US)
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI,   NL [1992/43]
TitleGerman:Optischer Aufzeichnungsträger[1992/43]
English:Optical recording medium[1992/43]
French:Milieu d'enregistrement optique[1992/43]
Examination procedure20.08.1992Examination requested  [1992/43]
06.07.1995Despatch of a communication from the examining division (Time limit: M06)
13.01.1996Reply to a communication from the examining division
25.10.1996Despatch of communication of intention to grant (Approval: No)
19.12.1996Despatch of communication of intention to grant (Approval: later approval)
03.01.1997Communication of intention to grant the patent
13.03.1997Fee for grant paid
13.03.1997Fee for publishing/printing paid
Opposition(s)03.04.1998No opposition filed within time limit [1998/26]
Fees paidRenewal fee
21.04.1994Renewal fee patent year 03
22.04.1995Renewal fee patent year 04
24.04.1996Renewal fee patent year 05
19.04.1997Renewal fee patent year 06
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.
Lapses during opposition  TooltipCH02.07.1997
LI02.07.1997
[1998/43]
Documents cited:Search[A]US4359750  (HOWE DENNIS G);
 [AD]EP0410183  (TAIYO YUDEN KK [JP]);
 [A]EP0368442  (PIONEER ELECTRONIC CORP [JP])
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.