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Extract from the Register of European Patents

EP About this file: EP2254131

EP2254131 - MANUFACTURING METHOD OF A Nd-BASED SINTERED MAGNET [Right-click to bookmark this link]
Former [2010/47]ND-BASED SINTERED MAGNET AND MANUFACTURING METHOD THEREOF
[2017/32]
StatusNo opposition filed within time limit
Status updated on  26.10.2018
Database last updated on 03.01.2025
FormerThe patent has been granted
Status updated on  17.11.2017
FormerGrant of patent is intended
Status updated on  01.08.2017
Most recent event   Tooltip26.10.2018No opposition filed within time limitpublished on 28.11.2018  [2018/48]
Applicant(s)For all designated states
Shin-Etsu Chemical Co., Ltd.
6-1, Ohtemachi 2-chome Chiyoda-ku
Tokyo 100-0004 / JP
[2010/47]
Inventor(s)01 / MIYATA Koji
c/o Magnetic Materials Research Center
Shin-Etsu Chemical Co. Ltd.
1-5 Kitago 2-chome
Echizen-shi
Fukui 915-8515 / JP
02 / MINOWA Takehisa
c/o Magnetic Materials Research Center
Shin-Etsu Chemical Co. Ltd.
1-5 Kitago 2-chome
Echizen-shi
Fukui 915-8515 / JP
03 / NAKAMURA Hajime
c/o Magnetic Materials Research Center
Shin-Etsu Chemical Co. Ltd.
1-5 Kitago 2-chome
Echizen-shi
Fukui 915-8515 / JP
04 / HIROTA Koichi
c/o Magnetic Materials Research Center
Shin-Etsu Chemical Co. Ltd.
1-5 Kitago 2-chome
Echizen-shi
Fukui 915-8515 / JP
05 / HONSHIMA Masakatsu
c/o Magnetic Materials Research Center
Shin-Etsu Chemical Co. Ltd.
1-5 Kitago 2-chome
Echizen-shi
Fukui 915-8515 / JP
 [2017/51]
Former [2011/08]01 / MIYATA Koji
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome Echizen-shi
Fukui 915-8515 / JP
02 / MINOWA Takehisa
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome Echizen-shi
Fukui 915-8515 / JP
03 / NAKAMURA Hajime
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome Echizen-shi
Fukui 915-8515 / JP
04 / HIROTA Koichi
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome Echizen-shi
Fukui 915-8515 / JP
05 / HONSHIMA Masakatsu
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome Echizen-shi
Fukui 915-8515 / JP
Former [2010/47]01 / MIYATA Koji
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome
Echizen-shi Fukui 915-8515 / JP
02 / MINOWA Takehisa
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome
Echizen-shi Fukui 915-8515 / JP
03 / NAKAMURA Hajime
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome
Echizen-shi Fukui 915-8515 / JP
04 / HIROTA Koichi
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome
Echizen-shi Fukui 915-8515 / JP
05 / HONSHIMA Masakatsu
c/o Magnetic Materials Research Center Shin-Etsu Chemical Co. Ltd. 1-5 Kitago 2-chome
Echizen-shi Fukui 915-8515 / JP
Representative(s)Bailey, Sam Rogerson, et al
Mewburn Ellis LLP
City Tower
40 Basinghall Street
London EC2V 5DE / GB
[2017/51]
Former [2010/47]Bailey, Sam Rogerson, et al
Mewburn Ellis LLP 33 Gutter Lane London
EC2V 8AS / GB
Application number, filing date09830345.627.11.2009
[2010/47]
WO2009JP70010
Priority number, dateJP2008030933804.12.2008         Original published format: JP 2008309338
[2010/47]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2010064578
Date:10.06.2010
Language:JA
[2010/23]
Type: A1 Application with search report 
No.:EP2254131
Date:24.11.2010
Language:EN
[2010/47]
Type: B1 Patent specification 
No.:EP2254131
Date:20.12.2017
Language:EN
[2017/51]
Search report(s)International search report - published on:JP10.06.2010
(Supplementary) European search report - dispatched on:EP22.07.2016
ClassificationIPC:H01F41/02, H01F1/08, H01F7/02, H02K1/27, H02K15/03, H01F1/057
[2016/34]
CPC:
H01F41/0293 (EP,US); H01F1/01 (US); H01F1/047 (US);
H01F1/0555 (US); H01F1/06 (US); H01F41/02 (US);
H01F41/026 (US); H01F41/0266 (US); H02K1/2781 (EP,US);
H01F1/0577 (EP,US); Y10T29/49009 (EP,US); Y10T29/49075 (EP,US);
Y10T29/49076 (EP,US) (-)
Former IPC [2010/47]H01F41/02, H01F1/08, H01F7/02, H02K1/27, H02K15/03
Designated contracting statesDE,   DK,   ES,   FR,   GB [2017/47]
Former [2010/47]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  SE,  SI,  SK,  SM,  TR 
Extension statesALNot yet paid
BANot yet paid
RSNot yet paid
TitleGerman:HERSTELLUNGSVERFAHREN EINES GESINTERTEN MAGNETES AUF Nd-BASIS[2017/33]
English:MANUFACTURING METHOD OF A Nd-BASED SINTERED MAGNET[2017/33]
French:PROCÉDÉ DE FABRICATION D'UN AIMANT FRITTÉ À BASE DE Nd[2017/33]
Former [2010/47]GESINTERTER MAGNET AUF ND-BASIS UND VERFAHREN ZU SEINER HERSTELLUNG
Former [2010/47]ND-BASED SINTERED MAGNET AND MANUFACTURING METHOD THEREOF
Former [2010/47]AIMANT FRITTÉ À BASE DE ND ET SON PROCÉDÉ DE FABRICATION
Entry into regional phase29.06.2010Translation filed 
05.07.2010National basic fee paid 
05.07.2010Search fee paid 
05.07.2010Designation fee(s) paid 
05.07.2010Examination fee paid 
Examination procedure05.07.2010Examination requested  [2010/47]
10.02.2017Amendment by applicant (claims and/or description)
02.08.2017Communication of intention to grant the patent
12.10.2017Receipt of the translation of the claim(s)
13.10.2017Fee for grant paid
13.10.2017Fee for publishing/printing paid
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  02.08.2017
Opposition(s)21.09.2018No opposition filed within time limit [2018/48]
Fees paidRenewal fee
21.11.2011Renewal fee patent year 03
13.11.2012Renewal fee patent year 04
18.11.2013Renewal fee patent year 05
10.11.2014Renewal fee patent year 06
10.11.2015Renewal fee patent year 07
10.11.2016Renewal fee patent year 08
13.11.2017Renewal fee patent year 09
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Documents cited:Search[A]EP1746611  (SHINETSU CHEMICAL CO [JP]) [A] 1-12* paragraphs [0059] , [0065]; figure 2 *;
 [I]EP1895636  (SHINETSU CHEMICAL CO [JP]) [I] 1-12 * paragraphs [0025] , [0034] , [0062] , [0071]; figure 5; claim 1 *;
 [A]WO2008075709  (ULVAC INC [JP], et al) [A] 1-12 * paragraph [0027] *;
 US2010051140  [ ] (NAGATA HIROSHI [JP], et al)
International search[A]WO03079516  (DAIKIN IND LTD [JP], et al);
 [A]JP2006261433  (TOYOTA MOTOR CORP);
 [Y]JP2008061333  (SHINETSU CHEMICAL CO);
 [Y]WO2008075709  (ULVAC INC [JP], et al);
 [AP]JP2009254092  (SHINETSU CHEMICAL CO)
by applicantJPH0521218
 JPH0531807B
 WO2006043348
    - K. D. DURST; H. KRONMULLER, "THE COERCIVE FIELD OF SINTERED AND MELT-SPUN NdFeB MAGNETS", JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, (1987), vol. 68, doi:doi:10.1016/0304-8853(87)90097-7, pages 63 - 75, XP024487191

DOI:   http://dx.doi.org/10.1016/0304-8853(87)90097-7
    - K. T. PARK; K. HIRAGA; M. SAGAWA, "Effect of Metal-Coating and Consecutive Heat Treatment on Coercivity of Thin Nd-Fe-B Sintered Magnets", PROCEEDINGS OF THE SIXTEEN INTERNATIONAL WORKSHOP ON RARE-EARTH MAGNETS AND THEIR APPLICATIONS, (2000), page 257, XP008130311
    - K. MACHIDA; H. KAWASAKI; S. SUZUKI; M. ITO; T. HORIKAWA, "Grain Boundary Tailoring of Nd-Fe-B Sintered Magnets and Their Magnetic Properties", PROCEEDINGS OF THE 2004 SPRING MEETING OF THE POWDER & POWDER METALLURGY SOCIETY, page 202
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