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Extract from the Register of European Patents

EP About this file: EP1460651

EP1460651 - METHOD FOR PRODUCING R-T-B BASED RARE EARTH ELEMENT PERMANENT MAGNET [Right-click to bookmark this link]
Status	No opposition filed within time limit Status updated on 28.12.2007 Database last updated on 25.09.2024
Most recent event Tooltip	28.12.2007	No opposition filed within time limit	published on 30.01.2008 [2008/05]
Applicant(s)	For all designated states TDK Corporation 13-1, Nihonbashi 1-chome Chuo-ku Tokyo 103-8272 / JP
	[2007/08]
Former [2004/39]	For all designated states TDK Corporation 13-1, Nihonbashi 1-chome Chuo-ku, Tokyo 103-8272 / JP
Inventor(s)	01 / ISHIZAKA, Chikara, c/o TDK Corporation 13-1, Nihonbashi 1-chome, Chuo-ku Tokyo 103-8272 / JP
	02 / NISHIZAWA, Gouichi, c/o TDK Corporation 13-1, Nihonbashi 1-chome, Chuo-ku Tokyo 103-8272 / JP
	03 / HIDAKA, Tetsuya, c/o TDK Corporation 13-1, Nihonbashi 1-chome, Chuo-ku Tokyo 103-8272 / JP
	04 / FUKUNO, Akira, c/o TDK Corporation 13-1, Nihonbashi 1-chome, Chuo-ku Tokyo 103-8272 / JP
	05 / UCHIDA, Nobuya, c/o TDK Corporation 13-1, Nihonbashi 1-chome, Chuo-ku Tokyo 103-8272 / JP
	[2004/39]
Representative(s)	Hoffmann Eitle Patent- und Rechtsanwälte PartmbB Arabellastrasse 30 81925 München / DE
	[N/P]
Former [2004/39]	HOFFMANN - EITLE Patent- und Rechtsanwälte Arabellastrasse 4 81925 München / DE
Application number, filing date	03748613.1	30.09.2003
	[2004/39]
	WO2003JP12492
Priority number, date	JP20020287033	30.09.2002 Original published format: JP 2002287033
	JP20030092890	28.03.2003 Original published format: JP 2003092890
	[2004/39]
Filing language	JA
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO2004030000
	Date:	08.04.2004
	Language:	EN
	[2004/15]
	Type:	A1 Application with search report
	No.:	EP1460651
	Date:	22.09.2004
	Language:	EN
	The application published by WIPO in one of the EPO official languages on 08.04.2004 takes the place of the publication of the European patent application.
	[2004/39]
	Type:	B1 Patent specification
	No.:	EP1460651
	Date:	21.02.2007
	Language:	EN
	[2007/08]
Search report(s)	International search report - published on:	JP	08.04.2004
	(Supplementary) European search report - dispatched on:	EP	07.02.2005
Classification	IPC:	C22C1/04, C22C33/02, H01F1/057, H01F1/053, H01F1/047	[2005/12]
	CPC:	C22C38/005 (EP); C22C33/0228 (EP); C22C33/0278 (EP); C22C38/06 (EP); C22C38/14 (EP); H01F1/0557 (EP); (+) H01F1/0577 (EP); H01F41/0253 (EP); B22F2998/10 (EP); C22C2202/02 (EP) (-)
	C-Set:	B22F2998/10, B22F9/023, B22F9/04, B22F3/02, B22F3/10 (EP)
	Former IPC [2004/39]	H01F1/08, H01F1/04, C22C33/02, C22C38/00, C22C38/16
Designated contracting states	DE, FR, GB, NL [2004/39]
Title	German:	VERFAHREN ZUR HERSTELLUNG EINES SELTENERDELEMENT-PERMANENTMAGNETEN AUF R-T-B-BASIS	[2004/39]
	English:	METHOD FOR PRODUCING R-T-B BASED RARE EARTH ELEMENT PERMANENT MAGNET	[2004/39]
	French:	METHODE DE PRODUCTION D'UN AIMANT PERMANENT A ELEMENTS DES TERRES RARES EN ALLIAGE DE R-T-B	[2004/39]
Entry into regional phase	21.05.2004	Translation filed
	21.05.2004	National basic fee paid
	21.05.2004	Search fee paid
	21.05.2004	Designation fee(s) paid
	21.05.2004	Examination fee paid
Examination procedure	21.05.2004	Examination requested [2004/39]
	23.05.2005	Despatch of a communication from the examining division (Time limit: M04)
	16.09.2005	Reply to a communication from the examining division
	07.03.2006	Despatch of a communication from the examining division (Time limit: M04)
	13.06.2006	Reply to a communication from the examining division
	12.10.2006	Communication of intention to grant the patent
	05.01.2007	Fee for grant paid
	05.01.2007	Fee for publishing/printing paid
Opposition(s)	22.11.2007	No opposition filed within time limit [2008/05]
Fees paid	Renewal fee
	26.09.2005	Renewal fee patent year 03
	21.09.2006	Renewal fee patent year 04
Opt-out from the exclusive Tooltip competence of the Unified 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.
Documents cited:	Search	[A]JPH1041113 ;
		[A]JPH10259459 ;
		[A]EP0302395 (TDK CORP [JP]) [A] 1-6 * figures 1-5; examples 1,6,8 *;
		[A]EP0753867 (HITACHI METALS LTD [JP]) [A] 1-6 * claim 8 *;
		[A]EP0994493 (HITACHI METALS LTD [JP]) [A] 1-6* paragraphs [0031] - [0037] *;
		[A]EP1014392 (SHINETSU CHEMICAL CO [JP]) [A] 1-6 * example 1; claims 1,2 *;
		[A]EP1033415 (SHOWA DENKO KK [JP]) [A] 1-6 * paragraphs [0012] - [0014] *;
		[X]EP1164599 (SHINETSU CHEMICAL CO [JP]) [X] 1-6 * paragraphs [0039] , [0040] , [0074] , [0075]; figures 1-4; example 3; claim 4 *;
		[A] - KIM A S ET AL, "MICROSTRUCTURE OF ZR CONTAINING NDFEB", IEEE TRANSACTIONS ON MAGNETICS, IEEE INC. NEW YORK, US, (199709), vol. 33, no. 5, PART 2, ISSN 0018-9464, pages 3823 - 3825, XP000703229 [A] 1-6 * figures 2-4; table I * DOI: http://dx.doi.org/10.1109/20.619583
		[A] - POLLARD R J ET AL, "EFFECT OF ZR ADDITIONS ON THE MICROSTRUCTURAL AND MAGNETIC PROPERTIES OF NDFEB BASED MAGNETS", IEEE TRANSACTIONS ON MAGNETICS, IEEE INC. NEW YORK, US, (19880301), vol. 24, no. 2, ISSN 0018-9464, pages 1626 - 1628, XP000174162 [A] 1-6 * abstract * DOI: http://dx.doi.org/10.1109/20.11551
		[A] - BESENICAR S, "THE INFLUENCE OF ZRO2 ADDITION ON THE MICROSTRUCTURE AND THE MAGNETIC PROPERTIES OF ND-DY-FE-B MAGNETS", JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, (19920201), vol. 104 - 107, no. PART 2, ISSN 0304-8853, pages 1175 - 1178, XP000329968 [A] 1-6 * abstract * DOI: http://dx.doi.org/10.1016/0304-8853(92)90539-Z
		[A] - MCGUINESS P J ET AL, "Magnetic properties and microstructure in NdDyFeBZr-HDDR", JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, (19980915), vol. 188, no. 1-2, ISSN 0304-8853, pages 119 - 124, XP004141643 [A] 1-6 * abstract * DOI: http://dx.doi.org/10.1016/S0304-8853(98)00168-1
		[A] - PATENT ABSTRACTS OF JAPAN, (19980430), vol. 1998, no. 06, & JP10041113 A 19980213 (MITSUBISHI MATERIALS CORP) [A] 1-6 * abstract *
		[A] - PATENT ABSTRACTS OF JAPAN, (19981231), vol. 1998, no. 14, & JP10259459 A 19980929 (MITSUBISHI MATERIALS CORP) [A] 1-6 * abstract *
	International search	[A]JPH01196104 (TDK CORP);
		[A]JPH07130522 (TDK CORP);
		[X]JPH07176414 (TDK CORP);
		[A]JPH09223617 (MITSUBISHI MATERIALS CORP);
		[Y]JPH1064712 (HITACHI METALS LTD);
		[A]WO0012771 (SHOWA DENKO KK [JP], et al);
		[A]JP2002075717 (SHINETSU CHEMICAL CO);
		[A]JP2002093610 (AICHI STEEL WORKS LTD);
		[Y]JP2002164239 (HITACHI METALS LTD)

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.

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