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Extract from the Register of European Patents

EP About this file: EP0895344

EP0895344 - A method of controlling a torque ripple of a motor having interior permanent magnets and a controller using the same method [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.08.2004
Database last updated on 19.10.2024
Most recent event   Tooltip17.10.2008Change - applicantpublished on 19.11.2008  [2008/47]
Applicant(s)For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
1006, Oaza Kadoma Kadoma-shi Osaka
571-8501 / JP
[2008/47]
Former [2003/40]For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
1006, Oaza-Kadoma
Kadoma-shi, Osaka 571-0000 / JP
Former [1999/05]For all designated states
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
1006, Oaza-Kadoma
Kadoma-shi, Osaka 571 / JP
Inventor(s)01 / Nakamura, Tomokazu
2-20-16, Kozu
Katano-shi, Osaka, 576 / JP
02 / Nishiyama, Noriyoshi
15-27, Sugahara-cho
Izumiotsu-shi, Osaka, 595 / JP
03 / Ikkai, Yasufumi
5-9-50-502, Uozakiminamimachi, Higashinada-ku
Kobe-shi, Hyogo, 658 / JP
[1999/05]
Representative(s)Kügele, Bernhard, et al
Novagraaf International SA
Chemin de l'Echo 3
1213 Onex / CH
[N/P]
Former [1999/05]Kügele, Bernhard, et al
NOVAPAT INTERNATIONAL SA, 9, Rue du Valais
1202 Genève / CH
Application number, filing date98114055.128.07.1998
[1999/05]
Priority number, dateJP1997020411430.07.1997         Original published format: JP 20411497
[1999/05]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0895344
Date:03.02.1999
Language:EN
[1999/05]
Type: A3 Search report 
No.:EP0895344
Date:01.09.1999
[1999/35]
Type: B1 Patent specification 
No.:EP0895344
Date:01.10.2003
Language:EN
[2003/40]
Search report(s)(Supplementary) European search report - dispatched on:EP15.07.1999
ClassificationIPC:H02P6/10
[1999/05]
CPC:
H02P6/10 (EP,US)
Designated contracting statesDE,   FR,   GB [2000/19]
Former [1999/05]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE 
TitleGerman:Verfahren zum Regeln von Drehmomentschwankungen eines Motors mit Permanentmagneten im Inneren und ein Regler mit diesem Verfahren[1999/05]
English:A method of controlling a torque ripple of a motor having interior permanent magnets and a controller using the same method[1999/05]
French:Méthode de commande d'ondulation du couple d'un moteur avec aimants permanents à l'intéerieur et régulateur utilisant cette méthode[1999/05]
Examination procedure16.11.1999Examination requested  [2000/03]
16.10.2001Despatch of a communication from the examining division (Time limit: M04)
11.02.2002Reply to a communication from the examining division
06.06.2002Despatch of a communication from the examining division (Time limit: M04)
22.07.2002Reply to a communication from the examining division
25.03.2003Communication of intention to grant the patent
16.07.2003Fee for grant paid
16.07.2003Fee for publishing/printing paid
Opposition(s)02.07.2004No opposition filed within time limit [2004/39]
Fees paidRenewal fee
21.07.2000Renewal fee patent year 03
23.07.2001Renewal fee patent year 04
20.07.2002Renewal fee patent year 05
23.07.2003Renewal fee patent year 06
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Documents cited:Search[XY]EP0564608  (KAMAN ELECTROMAGNETICS CORP [US]) [X] 1,11 * column 13, line 34 - line 44 * * claims 1,5 * [Y] 2,12;
 [Y]  - JAHNS T M ET AL, "PULSATING TORQUE MINIMIZATION TECHNIQUES FOR PERMANENT MAGNET AC MOTOR DRIVES-A REVIEW", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, (19960401), vol. 43, no. 2, ISSN 0278-0046, pages 321 - 330, XP000592585 [Y] 2,12 * page 326, line 38 - line 45 * * figure 6 *

DOI:   http://dx.doi.org/10.1109/41.491356
 [A]  - TAMAKI S ET AL, "THE OPTIMAL CONTROL SYSTEM OF INTERIOR PERMANENT MAGNET MOTORS FOR ELECTRIC VEHICLES", EVS - 13. 13TH. INTERNATIONAL ELECTRIC VEHICLE SYMPOSIUM, OSAKA, OCT. 13 - 16, 1996 SESSIONS 5A - 6H + POSTER/DIALOGUE SESSION, JAPAN ELECTRIC VEHICLE ASSOCIATION (JEVA), (19961013), vol. 2, no. SYMP. 13, pages 557 - 561, XP000688972 [A] 8-10,18-20 * page 557, INTRODUCTION, paragraph 2 *
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.