Extract from the Register of European Patents

EP About this file: EP4379071

EP4379071 - NON-ORIENTED ELECTRICAL STEEL SHEET, IRON CORE, IRON CORE MANUFACTURING METHOD, AND MOTOR MANUFACTURING METHOD [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  22.08.2025
Database last updated on 14.03.2026
FormerRequest for examination was made
Status updated on  03.05.2024
FormerThe international publication has been made
Status updated on  03.02.2023
Most recent event   Tooltip22.08.2025Application deemed to be withdrawnpublished on 24.09.2025  [2025/39]
Applicant(s)For all designated states
NIPPON STEEL CORPORATION
6-1, Marunouchi 2-chome
Chiyoda-ku
Tokyo 100-8071 / JP
[2024/23]
Inventor(s)01 / TANAKA, Ichiro
Tokyo 100-8071 / JP
02 / WAKISAKA, Takeaki
Tokyo 100-8071 / JP
 [2024/23]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstraße 3
81675 München / DE
[2024/23]
Application number, filing date22849574.328.07.2022
[2024/23]
WO2022JP29067
Priority number, dateJP2021012628930.07.2021         Original published format: JP 2021126289
[2024/23]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023008513
Date:02.02.2023
Language:JA
[2023/05]
Type: A1 Application with search report 
No.:EP4379071
Date:05.06.2024
Language:EN
[2024/23]
Search report(s)International search report - published on:JP02.02.2023
(Supplementary) European search report - dispatched on:EP16.10.2024
ClassificationIPC:C21D8/12, C22C38/34, C22C38/14, H01F41/02, C22C38/06, C22C38/16, C22C38/02, H01F1/16, C22C38/00, C22C38/08, C22C38/60, C22C38/04, C22C38/12, H01F1/147, C21D6/00, C21D9/46, B21D28/02
[2024/46]
CPC:
C22C38/60 (EP,US); C22C38/58 (KR); C21D6/008 (EP);
C21D8/12 (EP); C21D8/1233 (EP); C21D8/1261 (EP);
C21D8/1266 (EP); C21D8/1272 (EP); C21D9/46 (EP);
C22C38/00 (EP); C22C38/001 (EP,KR,US); C22C38/002 (EP,US);
C22C38/004 (EP,US); C22C38/005 (EP,US); C22C38/008 (EP,US);
C22C38/02 (EP,KR,US); C22C38/04 (EP,US); C22C38/06 (EP,KR,US);
C22C38/08 (EP,US); C22C38/12 (EP,US); C22C38/14 (EP,US);
C22C38/16 (EP,US); C22C38/34 (EP,KR,US); C22C38/42 (KR);
C22C38/44 (KR); C22C38/46 (KR); C22C38/48 (KR);
C22C38/50 (KR); C22C38/54 (KR); H01F1/147 (KR);
H01F1/14716 (US); H01F1/14791 (EP); H01F1/16 (EP);
H01F41/02 (KR); H01F41/0233 (EP); B21D28/02 (EP);
C22C2202/02 (US); Y02T10/64 (EP) (-)
Former IPC [2024/23]C21D8/12, C22C38/00, C22C38/60, H01F1/147
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 [2024/23]
TitleGerman:NICHTORIENTIERTES ELEKTROSTAHLBLECH, EISENKERN, EISENKERNHERSTELLUNGSVERFAHREN UND MOTORHERSTELLUNGSVERFAHREN[2024/23]
English:NON-ORIENTED ELECTRICAL STEEL SHEET, IRON CORE, IRON CORE MANUFACTURING METHOD, AND MOTOR MANUFACTURING METHOD[2024/23]
French:TÔLE D'ACIER ÉLECTRIQUE NON ORIENTÉE, NOYAU DE FER, PROCÉDÉ DE FABRICATION DE NOYAU DE FER ET PROCÉDÉ DE FABRICATION DE MOTEUR[2024/23]
Entry into regional phase18.07.2023Translation filed 
12.08.2023National basic fee paid 
12.08.2023Search fee paid 
12.08.2023Designation fee(s) paid 
12.08.2023Examination fee paid 
Examination procedure12.08.2023Examination requested  [2024/23]
07.05.2025Application deemed to be withdrawn, date of legal effect  [2025/39]
21.05.2025Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2025/39]
Fees paidRenewal fee
24.07.2024Renewal fee patent year 03
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Documents cited:Search[XI] JP2011236486  (SUMITOMO METAL IND et al.) [X] 1-5,7-10 * § 0001; cl. 1; tab. 1, A-H; tab. 2, 1-5, 7, 10-20 *[I] 6
 [I] JP2012036456  (SUMITOMO METAL IND et al.) [I] 1-10 * § 0001, 0017-0018; 0045; cl. 1; tab. 1, A-C; tab. 2, 1-22 *
 [I] JP2012036457  (SUMITOMO METAL IND et al.) [I] 1-10 * § 0001, 0016-0017; 0047; cl. 1; tab. 1, A-C; tab. 2, 1-22 *
 [A]   AUTORENKOLLEKTIV: "Spurenelemente im Stahl - Moeglichkeiten zur Beeinflussung im Smelzbetrieb", SPURENELEMENTE IN STAEHLEN, VERLAG STAHLEISEN, DUESSELDORF, DE, 1 January 1985 (1985-01-01), pages 19 - 22, XP002433212 [A] 1 * fig. 5.4 *
 [A]   AUGUSTA MARTINELLI MIRANDA ET AL: "Monitoring of less-common residual elements in scrap feeds for EAF steelmaking", IRONMAKING & STEELMAKING: PROCESSES, PRODUCTS AND APPLICATIONS, vol. 46, no. 7, 9 August 2019 (2019-08-09), United Kingdom, pages 598 - 608, XP055752627, ISSN: 0301-9233, DOI: 10.1080/03019233.2019.1601851 [A] 1 * figures 10-17 *

DOI:   http://dx.doi.org/10.1080/03019233.2019.1601851
International search[AX] JP2011236486  (SUMITOMO METAL IND et al.) [A] 6 [X] 1-5, 7-10
 [X] JPH02232319   [X] 1-10 * claims, p. 3, lower right column, line 17 to p. 4, upper left column, line 8, table 2, A11, A14, A17 *
 [X] JPH0888114  (SUMITOMO METAL IND et al.) [X] 1-10 * claims, paragraphs [0008], [0041]-[0049], example 1, table 1 *
 [X] JP2005200756  (SUMITOMO METAL IND et al.) [X] 1-10 * claims, paragraphs [0069]-[0073], table 2, examples 2-7, 2-8 *
by applicantJP2021126289
 JP5447167
 JP5716315
 WO2013069754
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