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Extract from the Register of European Patents

EP About this file: EP0452580

EP0452580 - A resin bound magnet and its production process [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  28.04.2000
Database last updated on 02.09.2024
Most recent event   Tooltip30.11.2007Lapse of the patent in a contracting state
New state(s): IT
published on 02.01.2008  [2008/01]
Applicant(s)For all designated states
Seiko Epson Corporation
4-1, Nishishinjuku 2-chome Shinjuku-ku
Tokyo / JP
[N/P]
Former [1994/32]For all designated states
SEIKO EPSON CORPORATION
4-1, Nishishinjuku 2-chome
Shinjuku-ku Tokyo / JP
Former [1994/03]For all designated states
SEIKO EPSON CORPORATION
4-1, Nishi-shinjuku 2-chome, Shinjuku-ku
Tokyo 163 / JP
Former [1991/43]For all designated states
IMPERIAL CHEMICAL INDUSTRIES PLC
Imperial Chemical House, Millbank
London SW1P 3JF / GB
For all designated states
SEIKO EPSON CORPORATION
4-1, Nishi-shinjuku 2-chome, Shinjuku-ku
Tokyo 163 / JP
Inventor(s)01 / Ikuma, Ken, Room 101 Mezon Shandoro
No 3838-1 Shimokaneko, Nakasu
Suwa-Shi, Nagano-Ken / JP
02 / Akioka, Koji, Room 336 Kanazawaseiwa-so
No 2050 Kanazawa
Chino-shi, Nagano-Ken / JP
03 / Sakata, Masaaki, Room 401 Kanazawaseiwa-so
No 2050 Kanazawa
Chino-shi, Nagano-Ken / JP
04 / Shimoda, Tatsuya, No 10017-16 Ochiai
Fujimi-Machi, Suwa-Gun
Nagano-Ken / JP
[1991/43]
Representative(s)Sturt, Clifford Mark
Miller Sturt Kenyon
9 John Street
London
WC1N 2ES / GB
[N/P]
Former [1994/11]Sturt, Clifford Mark
J. MILLER & CO. 34 Bedford Row Holborn
London WC1R 4JH / GB
Former [1993/40]Sturt, Clifford Mark
J. Miller & Co. 34 Bedford Row Holborn
London WC1R 4JH / GB
Former [1991/43]Walmsley, David Arthur Gregson
Intellectual Property Department ICI Chemicals & Polymers Ltd P.O. Box 11 The Heath
Runcorn Cheshire WA7 4QE / GB
Application number, filing date90304268.720.04.1990
[1991/43]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0452580
Date:23.10.1991
Language:EN
[1991/43]
Type: B1 Patent specification 
No.:EP0452580
Date:23.06.1999
Language:EN
[1999/25]
Search report(s)(Supplementary) European search report - dispatched on:EP21.01.1991
ClassificationIPC:H01F41/02
[1991/43]
CPC:
H01F41/0273 (EP,US); Y10S428/90 (EP,US); Y10T428/1355 (EP,US);
Y10T428/139 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1991/43]
TitleGerman:Kunstharzgebundener Magnet und dessen Herstellungsverfahren[1991/43]
English:A resin bound magnet and its production process[1991/43]
French:Aimant à liant résineux et son procédé de fabrication[1991/43]
Examination procedure08.02.1992Examination requested  [1992/15]
16.12.1992Despatch of a communication from the examining division (Time limit: M06)
20.10.1993Reply to a communication from the examining division
02.02.1994Despatch of a communication from the examining division (Time limit: M04)
09.06.1994Reply to a communication from the examining division
12.09.1994Despatch of a communication from the examining division (Time limit: M06)
16.03.1995Reply to a communication from the examining division
14.07.1995Despatch of a communication from the examining division (Time limit: M06)
19.01.1996Reply to a communication from the examining division
21.03.1996Despatch of a communication from the examining division (Time limit: M06)
30.09.1996Reply to a communication from the examining division
09.12.1996Despatch of a communication from the examining division (Time limit: M06)
19.06.1997Reply to a communication from the examining division
25.09.1997Despatch of a communication from the examining division (Time limit: M06)
30.03.1998Reply to a communication from the examining division
30.07.1998Despatch of communication of intention to grant (Approval: No)
01.12.1998Despatch of communication of intention to grant (Approval: later approval)
04.12.1998Communication of intention to grant the patent
02.03.1999Fee for grant paid
02.03.1999Fee for publishing/printing paid
Opposition(s)24.03.2000No opposition filed within time limit [2000/24]
Request for further processing for:30.06.1993Request for further processing filed
30.06.1993Full payment received (date of receipt of payment)
Request granted
17.12.1993Decision despatched
Fees paidRenewal fee
06.03.1992Renewal fee patent year 03
05.03.1993Renewal fee patent year 04
28.04.1994Renewal fee patent year 05
04.04.1995Renewal fee patent year 06
16.04.1996Renewal fee patent year 07
12.04.1997Renewal fee patent year 08
14.04.1998Renewal fee patent year 09
14.04.1999Renewal fee patent year 10
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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  TooltipBE23.06.1999
ES23.06.1999
GR23.06.1999
IT23.06.1999
SE23.06.1999
DK23.09.1999
[2008/01]
Former [2004/07]BE23.06.1999
ES23.06.1999
GR23.06.1999
SE23.06.1999
DK23.09.1999
Former [2003/45]BE23.06.1999
ES23.06.1999
SE23.06.1999
DK23.09.1999
Former [2002/24]BE23.06.1999
ES23.06.1999
SE23.06.1999
Former [2002/23]BE23.06.1999
SE23.06.1999
Former [2000/23]BE23.06.1999
Documents cited:Search[Y]JP63216318  ;
 [Y]JP63120407  ;
 [X]JP60220918  ;
 [Y]JP61158118  ;
 [Y]JP61272914  ;
 [AD]JP60217617  ;
 [A]JP62273708  ;
 [A]JP59080902  ;
 [A]JP63110616  ;
 [A]JP01055814  ;
 [A]JP02094411  ;
 [A]US3732617  (ROWE R, et al);
 [A]GB1373019  (JOHNSON R E, et al);
 [A]FR2449957  (INOUE JAPAX RES [JP]);
 [Y]US4457851  (TABARU KAZUNORI [JP], et al);
 [A]US4601224  (CLARK III WILLIAM T [US]);
 [A]EP0255816  (TREIBACHER CHEMISCHE WERKE AG [AT]);
 [A]EP0318251  (ICI PLC [GB], et al)
 [Y]  - PATENT ABSTRACTS OF JAPAN, vol. 13, no. 5 (E-701)[3353] 09 January 1989; & JP-A-63 216 318 (SEIKO EPSON CORP.,), & JP63216318 A 19890109
 [Y]  - PATENT ABSTRACTS OF JAPAN, vol. 12, no. 367 (E-664)[3214] 30 September 1988; & JP-A-63 120 407 (SHIN ETSU CHEM CO LTD.,), & JP63120407 A 19880930
 [X]  - PATENT ABSTRACTS OF JAPAN, vol. 10, no. 75 (E-390)[2132] 25 March 1986; & JP-A-60 220 918 (SUWA SEIKOSHA K.K.), & JP60220918 A 19860325
 [Y]  - PATENT ABSTRACTS OF JAPAN, vol. 10, no. 359 (E-460)[2416] 03 December 1986; & JP-A-61 158 118 (YAMAUCHI RUBBER IND CO LTD.,), & JP61158118 A 19861203
 [Y]  - PATENT ABSTRACTS OF JAPAN, vol. 11, no. 127 (E-501)[2574] 21 April 1987; & JP-A-61 272 914 (SEIKO EPSON CORP.,), & JP61272914 A 19870421
 [AD]  - PATENT ABSTRACTS OF JAPAN, vol. 10, no. 65 (E-388)[2122] 14 March 1986; & JP-A-60 217 617 (SUWA SEIKOSHA K.K.), & JP60217617 A 19860314
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 12, no. 162 (E-609)[3009] 17 May 1988, & JP-A-62 273 708 (SEIKO EPSON CORP.,), & JP62273708 A 19880517
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 8, no. 194 (E-264)[1631] 06 September 1984; & JP-A-59 080 902 (HITACHI KINZOKU K.K.), & JP59080902 A 19840906
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 12, no. 355 (E-661)[3202] 22 September 1988; & JP-A-63 110 616 (KANEGAFUCHI CHEM IND CO LTD.,), & JP63110616 A 19880922
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 13, no. 264 (E-774)[3612] 19 June 1989; & JP-A-01 055 814 (FUJI ELECTROCHEM CO LTD.,), & JP01055814 A 19890619
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 14, no. 292 (E-944)[4235] 25 June 1990; & JP-A-02 094 411 (TOKIN CORP.,) 05 April 1990,, & JP02094411 A 19900405
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.