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Extract from the Register of European Patents

EP About this file: EP0442022

EP0442022 - Method of forming ferrite coatings [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.07.1995
Database last updated on 02.11.2024
Most recent event   Tooltip08.07.1995No opposition filed within time limitpublished on 30.08.1995 [1995/35]
Applicant(s)For all designated states
Nippon Paint Co., Ltd.
2-1-2, Oyodokita Kita-ku Osaka-shi
Osaka 530 / JP
[N/P]
Former [1991/34]For all designated states
NIPPON PAINT CO., LTD.
2-1-2, Oyodokita Kita-ku
Osaka-shi Osaka 530 / JP
Inventor(s)01 / Yoshioka, Katsuaki, c/o Kasa Musashiseki 801
1-20-14, Kita Sekimachi, Nerima-ku
Tokyo-to / JP
02 / Oishi, Masao
15-13, Tainishimachi
Neyagawa-shi, Osaka-fu / JP
03 / Saito, Takao
2-17-9, Midorigaoka
Toyonaka-shi, Osaka-fu / JP
04 / Ishikawa, Katsukiyo
2-40 Kitadai, Sayama, Kumiyama-cho
Kuze-gun, Kyoto-fu / JP
[1991/34]
Representative(s)Hansen, Bernd, et al
Hoffmann Eitle Patent- und Rechtsanwälte Postfach 81 04 20
81904 München / DE
[N/P]
Former [1991/34]Hansen, Bernd, Dr.rer.nat., et al
Hoffmann, Eitle & Partner Patentanwälte Postfach 81 04 20
D-81904 München / DE
Application number, filing date90105545.923.03.1990
[1991/34]
Priority number, dateJP1990003150414.02.1990         Original published format: JP 3150490
[1991/34]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0442022
Date:21.08.1991
Language:EN
[1991/34]
Type: A3 Search report 
No.:EP0442022
Date:13.05.1992
Language:EN
[1992/20]
Type: B1 Patent specification 
No.:EP0442022
Date:07.09.1994
Language:EN
[1994/36]
Search report(s)(Supplementary) European search report - dispatched on:EP27.03.1992
ClassificationIPC:H01F41/24, H01F1/11
[1991/34]
CPC:
H01F41/24 (EP,US); H01F1/111 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL [1991/34]
TitleGerman:Verfahren zum Formen von Ferritschichten[1991/34]
English:Method of forming ferrite coatings[1991/34]
French:Méthode pour former des couches en ferrite[1991/34]
Examination procedure08.07.1992Examination requested  [1992/36]
17.09.1993Despatch of a communication from the examining division (Time limit: M04)
03.01.1994Reply to a communication from the examining division
25.01.1994Despatch of communication of intention to grant (Approval: Yes)
09.03.1994Communication of intention to grant the patent
26.05.1994Fee for grant paid
26.05.1994Fee for publishing/printing paid
Opposition(s)08.06.1995No opposition filed within time limit [1995/35]
Fees paidRenewal fee
30.03.1992Renewal fee patent year 03
31.03.1993Renewal fee patent year 04
31.03.1994Renewal fee patent year 05
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Documents cited:Search[X]NL6917431  ;
 [Y]EP0259194  (NIPPON PAINT CO LTD [JP]);
 [A]EP0259975  (NIPPON PAINT CO LTD [JP])
 [Y]  - IEEE TRANSACTIONS ON MAGNETICS. vol. 25, no. 5, September 1989, NEW YORK US pages 4230 - 4232; T. ITOH ET AL: 'FERRITE PLATING OF Fe3O4 AND Fe3-xNixO4 FILMS'
Examination   - pages 4230 - 4232; T. ITOH ET AL: 'FERRITE PLATING OF Fe3O4 AND Fe3-xNixO4FILMS'
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.