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Extract from the Register of European Patents

EP About this file: EP0687526

EP0687526 - Polishing method and apparatus for automatic reduction of wafer taper in single-wafer polishing [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  26.05.2000
Database last updated on 19.10.2024
Most recent event   Tooltip21.06.2002Lapse of the patent in a contracting statepublished on 07.08.2002  [2002/32]
Applicant(s)For all designated states
SHIN-ETSU HANDOTAI COMPANY LIMITED
4-2, Marunouchi 1-Chome Chiyoda-ku
Tokyo / JP
[N/P]
Former [1995/51]For all designated states
SHIN-ETSU HANDOTAI COMPANY LIMITED
4-2, Marunouchi 1-Chome
Chiyoda-ku Tokyo / JP
Inventor(s)01 / Misaka, Hitoshi
1-110, Aza-furutakayama
Shirakawa-shi, Fukushima-ken / JP
02 / Tanaka, Kouichi, Kohu-ryo 106
250-9, Aza-ohira, Oaza-odakura, Nishigo-mura
Nishishirakawa-gun, Fukushima-ken / JP
03 / Matsumoto, Morifumi, Ryokuhu-ryo
150-5, Aza-ohira, Oaza-odakura, Nishigo-mura
Nishishirakawa-gun, Fukushima-ken / JP
04 / Morita, Kouji
58, Aza-nishinouchi, Oaza-motonuma
Shirakawa-shi, Fukushima-ken / JP
[1995/51]
Representative(s)Whalley, Kevin, et al
Marks & Clerk LLP
90 Long Acre
London WC2E 9RA / GB
[N/P]
Former [1995/51]Whalley, Kevin, et al
MARKS & CLERK, 57-60 Lincoln's Inn Fields
London WC2A 3LS / GB
Application number, filing date95302449.412.04.1995
[1995/51]
Priority number, dateJP1994010339818.04.1994         Original published format: JP 10339894
[1995/51]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0687526
Date:20.12.1995
Language:EN
[1995/51]
Type: B1 Patent specification 
No.:EP0687526
Date:21.07.1999
Language:EN
[1999/29]
Search report(s)(Supplementary) European search report - dispatched on:EP24.07.1995
ClassificationIPC:B24B37/04
[1995/51]
CPC:
B24B37/005 (EP,US)
Designated contracting statesDE,   FR,   GB [1995/51]
TitleGerman:Verfahren und Vorrichtung zur automatischen Reduzierung der Konizität eines Wafers im Einzelpoliervorgang[1995/51]
English:Polishing method and apparatus for automatic reduction of wafer taper in single-wafer polishing[1995/51]
French:Procédé et dispositif de polissage pour la réduction automatique de la conicité d'une plaquette semi-conductrice lors du polissage pièce par pièce[1995/51]
Examination procedure08.12.1995Examination requested  [1996/06]
22.10.1998Despatch of communication of intention to grant (Approval: No)
13.01.1999Despatch of communication of intention to grant (Approval: later approval)
25.01.1999Communication of intention to grant the patent
30.03.1999Fee for grant paid
30.03.1999Fee for publishing/printing paid
Opposition(s)26.04.2000No opposition filed within time limit [2000/28]
Fees paidRenewal fee
12.04.1997Renewal fee patent year 03
14.04.1998Renewal fee patent year 04
14.04.1999Renewal fee patent year 05
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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  TooltipFR21.07.1999
[2002/32]
Documents cited:Search[DA]JPH02159722  ;
 [A]JPH02257628  ;
 [A]JPH01228773  ;
 [A]JPH01193172  ;
 [A]JPH0227721  ;
 [A]JPH01153266  ;
 [A]US4742651  (WITTSTOCK GERHARD [DE]) [A] 1,3 * abstract *
 [DA]  - PATENT ABSTRACTS OF JAPAN, (19900907), vol. 014, no. 414, Database accession no. (E - 0975), & JP02159722 A 19900619 (SHIN ETSU HANDOTAI CO LTD) [DA] 1,3 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19910107), vol. 015, no. 003, Database accession no. (E - 1019), & JP02257628 A 19901018 (KYUSHU ELECTRON METAL CO LTD;OTHERS: 01) [A] 1,3 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19891211), vol. 013, no. 555, Database accession no. (M - 904), & JP01228773 A 19890912 (KYUSHU ELECTRON METAL CO LTD;OTHERS: 01) [A] 1,3 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19891106), vol. 013, no. 485, Database accession no. (M - 887), & JP01193172 A 19890803 (SUMITOMO METAL MINING CO LTD) [A] 1,3 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19900330), vol. 014, no. 170, Database accession no. (E - 0913), & JP02027721 A 19900130 (HITACHI LTD) [A] 1,3 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19890913), vol. 013, no. 415, Database accession no. (M - 870), & JP01153266 A 19890615 (SHINETSU ENG KK;OTHERS: 01) [A] 1,3 * 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.