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Extract from the Register of European Patents

EP About this file: EP4070904

EP4070904 - WELDING TRANSFORMER [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  09.09.2022
Database last updated on 05.10.2024
FormerThe international publication has been made
Status updated on  11.06.2021
Formerunknown
Status updated on  25.11.2020
Most recent event   Tooltip29.04.2024The date on which the examining division becomes responsible, has been established 
29.04.2024Amendment by applicant 
Applicant(s)For all designated states
Koyo Giken Inc.
2-7-6 Hashimotodai Midori-ku
Sagamihara-shi
Kanagawa 2520132 / JP
[2022/41]
Inventor(s)01 / KAI, Kouji
2-7-6 Hashimotodai Midori-ku
Sagamihara-shi Kanagawa 2520132 / JP
02 / HOUZAN, Kazuki
2-7-6 Hashimotodai Midori-ku
Sagamihara-shi Kanagawa 2520132 / JP
03 / SHINOZAKI, Tuyosi
2-7-6 Hashimotodai Midori-ku
Sagamihara-shi Kanagawa 2520132 / JP
04 / KAI, Mitoshi
2-7-6 Hashimotodai Midori-ku
Sagamihara-shi Kanagawa 2520132 / JP
 [2022/41]
Representative(s)Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München / DE
[2022/41]
Application number, filing date20807647.124.03.2020
[2022/41]
WO2020JP13131
Priority number, dateJP2019021870503.12.2019         Original published format: JP 2019218705
[2022/41]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021111651
Date:10.06.2021
Language:JA
[2021/23]
Type: A1 Application with search report 
No.:EP4070904
Date:12.10.2022
Language:EN
[2022/41]
Search report(s)International search report - published on:JP10.06.2021
(Supplementary) European search report - dispatched on:EP29.11.2023
ClassificationIPC:B23K11/24, H01F30/10, H01F27/28, H01F38/08, // H01F27/40, H01F27/10
[2023/52]
CPC:
H01F30/10 (EP); H01F38/085 (EP,KR,US); H01F27/10 (EP,KR,US);
B23K11/24 (EP); B23K11/241 (KR,US); F28F3/048 (US);
H01F27/2852 (EP); H01F27/2876 (EP); H01F3/08 (EP);
H01F2027/408 (EP) (-)
Former IPC [2022/41]B23K11/24, H01F30/10
Designated contracting statesAL,   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,   RS,   SE,   SI,   SK,   SM,   TR [2022/41]
TitleGerman:SCHWEISSTRANSFORMATOR[2022/41]
English:WELDING TRANSFORMER[2022/41]
French:TRANSFORMATEUR DE SOUDAGE[2022/41]
Entry into regional phase25.11.2020Translation filed 
25.11.2020National basic fee paid 
25.11.2020Search fee paid 
25.11.2020Designation fee(s) paid 
25.11.2020Examination fee paid 
Examination procedure25.11.2020Examination requested  [2022/41]
26.04.2024Amendment by applicant (claims and/or description)
26.04.2024Date on which the examining division has become responsible
Fees paidRenewal fee
01.03.2022Renewal fee patent year 03
15.03.2023Renewal fee patent year 04
07.03.2024Renewal fee patent year 05
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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[XA]JPH0582357  (NIKKI DENSO KK) [X] 1 * §§1-25;; figures 1-7 * [A] 2-8;
 [XA]DE202009012960U  (NIMAK GMBH [DE]) [X] 1,2 * §§5-22;; figures 5-1-5-5 * [A] 3-8;
 [XA]US2010156585  (SOLAR ANTON [SI], et al) [X] 1,2 * §§35-49;; figures 1-4 * [A] 3-8;
 [A]JP2014232822  (KOYO GIKEN KK) [A] 1-8* figures 2, 4, 5 *;
 [A]US9202622  (KAI KOJI [JP], et al) [A] 1-8 * figures 13-15 *
International search[A]JPH06151211  (HONDA MOTOR CO LTD) [A] 1-6 * 0019-0040,1-7 *;
 [A]JP2008130657  (OBARA CORP) [A] 1-6 * 0011-0019, 1-4 *;
 [A]JP2013172066  (KOYO GIKEN KK) [A] 1-6 * 0 0 1 4 - 0 0 6 2, 1 -1 2 *;
 [A]JP2015501539  [A] 1-6* 00 9 3, 7 *
by applicantWO2012JP66646
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.