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Extract from the Register of European Patents

EP About this file: EP0801422

EP0801422 - Removing agent composition for a photoresist and process for producing a semiconductor integrated circuit [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  24.10.2003
Database last updated on 25.09.2024
Most recent event   Tooltip24.10.2003No opposition filed within time limitpublished on 10.12.2003  [2003/50]
Applicant(s)For all designated states
MITSUBISHI GAS CHEMICAL COMPANY, INC.
No. 5-2, Marunouchi 2-chome Chiyoda-ku
Tokyo / JP
[N/P]
Former [1997/42]For all designated states
MITSUBISHI GAS CHEMICAL COMPANY, INC.
No. 5-2, Marunouchi 2-chome
Chiyoda-ku, Tokyo / JP
Inventor(s)01 / Iwata, Keiichi, Mitsubishi Gas Chem. Comp. Inc.
Niigata Research Laboratory, 182, Aza-Shinwai
Tayuhama, Niigata-shi, Niigata-ken / JP
02 / Karita, Tetsuya, Mitsubishi Gas Chem. Comp. Inc.
Niigata Research Laboratory, 182, Aza-Shinwai
Tayuhama, Niigata-shi, Niigata-ken / JP
03 / Aoyama, Tetsuo, Mitsubishi Gas Chem. Comp. Inc.
Niigata Research Laboratory, 182, Aza-Shinwai
Tayuhama, Niigata-shi, Niigata-ken / JP
[1997/42]
Representative(s)Gille Hrabal Partnerschaftsgesellschaft mbB Patentanwälte
Brucknerstraße 20
40593 Düsseldorf / DE
[N/P]
Former [1997/42]Türk, Gille, Hrabal, Leifert
Brucknerstrasse 20
40593 Düsseldorf / DE
Application number, filing date97105547.003.04.1997
[1997/42]
Priority number, dateJP1996009152112.04.1996         Original published format: JP 9152196
[1997/42]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0801422
Date:15.10.1997
Language:EN
[1997/42]
Type: A3 Search report 
No.:EP0801422
Date:29.04.1998
[1998/18]
Type: B1 Patent specification 
No.:EP0801422
Date:18.12.2002
Language:EN
[2002/51]
Search report(s)(Supplementary) European search report - dispatched on:EP17.03.1998
ClassificationIPC:H01L21/321, G03F7/42
[1997/42]
CPC:
H01L21/02071 (EP,US); G03F7/42 (KR); G03F7/425 (EP,US);
H01L21/027 (KR); H01L21/31133 (EP,KR,US)
Designated contracting statesDE,   FR,   GB,   IT [1997/42]
TitleGerman:Reinigungsmittelzusammensetzung für Photoresist und Verfahren zur Herstellung eines halbleitenden integrierten Schaltkreises[1997/42]
English:Removing agent composition for a photoresist and process for producing a semiconductor integrated circuit[1997/42]
French:Composition décapante pour photoresist et procédé de fabrication d'un circuit intégré semi-conducteur[1997/42]
Examination procedure02.10.1998Examination requested  [1998/49]
29.03.2000Despatch of a communication from the examining division (Time limit: M04)
25.07.2000Reply to a communication from the examining division
14.02.2002Despatch of communication of intention to grant (Approval: Yes)
26.06.2002Communication of intention to grant the patent
02.09.2002Fee for grant paid
02.09.2002Fee for publishing/printing paid
Opposition(s)19.09.2003No opposition filed within time limit [2003/50]
Fees paidRenewal fee
25.03.1999Renewal fee patent year 03
26.04.2000Renewal fee patent year 04
26.04.2001Renewal fee patent year 05
19.04.2002Renewal fee patent year 06
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Documents cited:Search[XY]JPH0728254  ;
 [X]JPH07283204  ;
 [Y]EP0578507  (EKC TECHNOLOGY INC [US]) [Y] 1-4 * claims 2,10 *;
 [A]EP0463423  (MITSUBISHI GAS CHEMICAL CO [JP]) [A] 1-4 * abstract *;
 [PX]EP0723205  (MITSUBISHI GAS CHEMICAL CO [JP]) [PX] 1-4 * claims 6-10 *;
 [A]EP0647884  (BAKER J T INC [US]) [A] 1-4 * abstract *;
 [XY]  - PATENT ABSTRACTS OF JAPAN, (19950531), vol. 95, no. 4, & JP07028254 A 19950131 (KANTO CHEM CO) [X] 1-4 * abstract * [Y] 1-4
 [X]  - PATENT ABSTRACTS OF JAPAN, (19960229), vol. 96, no. 2, & JP07283204 A 19951027 (MITSUBISHI GAS CO) [X] 1-4 * abstract *
 [A]  - WAI MUN LEE, "A NEW APPROACH IN PHOTORESIST STRIPPING AND POST PLASMA ETCH/ASH WAFER CLEANING FOR SUBMICRON PROCESSES", EXTENDED ABSTRACTS, (19930101), vol. 93/1, page 488/489, XP000431791 [A] 1-4 * the whole document *
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.