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Extract from the Register of European Patents

EP About this file: EP0632471

EP0632471 - Process of preparing a permanent magnet containing rare earth metal, boron and iron [Right-click to bookmark this link]
Former [1995/01]Permanent magnet containing rare earth metal, boron and iron
[1997/39]
StatusNo opposition filed within time limit
Status updated on  31.07.1998
Database last updated on 31.08.2024
Most recent event   Tooltip28.12.2007Lapse of the patent in a contracting state
New state(s): ES
published on 30.01.2008  [2008/05]
Applicant(s)For all designated states
SANTOKU METAL INDUSTRY CO., LTD.
14-34, 4-chome, Fukae-Kitamachi, Higashinada-ku Kobe-shi
Hyogo-ken / JP
[N/P]
Former [1995/01]For all designated states
SANTOKU METAL INDUSTRY CO., LTD.
14-34, 4-chome, Fukae-Kitamachi, Higashinada-ku
Kobe-shi, Hyogo-ken / JP
Inventor(s)01 / Yamamoto, Kazuhiko
4-2-3-414, Aoyamadai, Tarumi-ku
Kobe-shi, Hyogo-ken / JP
02 / Miyake, Yuichi
841, Nakanomachi
Kasai-shi, Hyogo-ken / JP
03 / Okada, Chikara
Rekkusu Manshon 710, 6-4-8, Shirakawadai, Suma-ku
Kobe-shi, Hyogo-ken / JP
[1995/01]
Representative(s)Kraus, Walter, et al
Patentanwälte Kraus, Weisert & Partner Thomas-Wimmer-Ring 15
80539 München / DE
[N/P]
Former [1995/01]Kraus, Walter, Dr., et al
Patentanwälte Kraus, Weisert & Partner Thomas-Wimmer-Ring 15
D-80539 München / DE
Application number, filing date94108868.409.06.1994
[1995/01]
Priority number, dateJP1993014215614.06.1993         Original published format: JP 14215693
[1995/01]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0632471
Date:04.01.1995
Language:EN
[1995/01]
Type: A3 Search report 
No.:EP0632471
Date:15.02.1995
Language:EN
[1995/07]
Type: B1 Patent specification 
No.:EP0632471
Date:24.09.1997
Language:EN
[1997/39]
Search report(s)(Supplementary) European search report - dispatched on:EP23.12.1994
ClassificationIPC:H01F1/053
[1995/01]
CPC:
C22C1/0441 (EP); H01F1/00 (KR); H01F1/0571 (EP);
H01F1/0577 (EP)
Designated contracting statesAT,   DE,   ES,   FR,   GB,   IT,   NL,   SE [1995/01]
TitleGerman:Verfahren zur Herstellung eines Dauermagneten aus Seltenerdmetall, Bor und Eisen[1997/39]
English:Process of preparing a permanent magnet containing rare earth metal, boron and iron[1997/39]
French:Procédé de preparation d' un aimant permanent contenant du métal de terre rare, du bore et du fer[1997/39]
Former [1995/01]Dauermagnet aus Seltenerdmetall, Bor und Eisen
Former [1995/01]Permanent magnet containing rare earth metal, boron and iron
Former [1995/01]Aimant permanent contenant du métal de terre rare, du bore et du fer
Examination procedure07.03.1995Examination requested  [1995/19]
08.09.1995Despatch of a communication from the examining division (Time limit: M06)
11.03.1996Reply to a communication from the examining division
17.04.1996Despatch of a communication from the examining division (Time limit: M05)
03.09.1996Reply to a communication from the examining division
09.12.1996Despatch of communication of intention to grant (Approval: Yes)
27.03.1997Communication of intention to grant the patent
25.06.1997Fee for grant paid
25.06.1997Fee for publishing/printing paid
Opposition(s)25.06.1998No opposition filed within time limit [1998/38]
Fees paidRenewal fee
21.06.1996Renewal fee patent year 03
18.06.1997Renewal fee patent year 04
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Lapses during opposition  TooltipES24.09.1997
IT24.09.1997
SE24.12.1997
[2002/26]
Former [1999/42]IT24.09.1997
SE24.12.1997
Former [1998/15]SE24.12.1997
Documents cited:Search[YA]JPH04147605  ;
 [A]JPH02118054  ;
 [A]JPS63115304  ;
 [PX]EP0556751  (SANTOKU METAL IND [JP]) [PX] 1 * page 4, line 2 - line 29 ** page 5, line 2 - line 8; claims 1,2,4,5 *
 [Y]  - D.DADON ET AL, IEEE TRANSACTIONS ON MAGNETICS., NEW YORK US, (198709), vol. 23, no. 5, pages 3605 - 3606 [Y] 1,2,5,6 * the whole document *
 [YA]  - PATENT ABSTRACTS OF JAPAN, (19920907), vol. 16, no. 423, Database accession no. (E - 1260), & JP04147605 A 19920521 (HITACHI METALS LTD.) [Y] 1,2,5,6 * abstract * [A] 3,4
 [A]  - PATENT ABSTRACTS OF JAPAN, (19900712), vol. 14, no. 326, Database accession no. (C - 740), & JP02118054 A 19900502 (SEIKO EPSON CORP.) [A] 1,3,4 * abstract *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19880928), vol. 12, no. 362, Database accession no. (E - 663), & JP63115304 A 19880519 (TDK CORP) [A] 1-8 * abstract *
 [A]  - T-S.CHIN ET AL, APPLIED PHYSICS LETTERS, NEW YORK US, (19910814), vol. 59, no. 16, pages 2046 - 2048
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.