Extract from the Register of European Patents

EP About this file: EP3432011

EP3432011 - ELECTRIC LEAKAGE DETECTION DEVICE [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  12.12.2025
Database last updated on 21.03.2026
FormerGrant of patent is intended
Status updated on  10.10.2025
FormerExamination is in progress
Status updated on  21.10.2022
FormerRequest for examination was made
Status updated on  21.12.2018
FormerThe international publication has been made
Status updated on  22.09.2017
Most recent event   Tooltip12.12.2025(Expected) grantpublished on 14.01.2026  [2026/03]
Applicant(s)For all designated states
NTN Corporation
3-17, Kyomachibori 1-chome Nishi-ku
Osaka-shi, Osaka 550-0003 / JP
[2019/04]
Inventor(s)01 / HANEDA Masaji
975 Jorakuji
Azuchicho
Omihachiman-shi Shiga 521-0351 / JP
 [2019/04]
Representative(s)Müller, Enno, et al
Rieder & Partner mbB
Patentanwälte - Rechtsanwalt
Yale-Allee 26
42329 Wuppertal / DE
[2026/03]
Former [2019/04]Müller, Enno, et al
Rieder & Partner mbB
Patentanwälte - Rechtsanwalt
Corneliusstrasse 45
42329 Wuppertal / DE
Application number, filing date17766536.109.03.2017
[2019/04]
WO2017JP09474
Priority number, dateJP2016005592018.03.2016         Original published format: JP 2016055920
[2019/04]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2017159535
Date:21.09.2017
Language:JA
[2017/38]
Type: A1 Application with search report 
No.:EP3432011
Date:23.01.2019
Language:EN
[2019/04]
Type: B1 Patent specification 
No.:EP3432011
Date:14.01.2026
Language:EN
[2026/03]
Search report(s)International search report - published on:JP21.09.2017
(Supplementary) European search report - dispatched on:EP04.11.2019
ClassificationIPC:G01R31/52
[2025/43]
CPC:
G01R31/52 (EP,US); G01R31/50 (KR); G01R19/16576 (KR);
H02H3/16 (EP,KR,US); G01R27/025 (EP); G01R27/18 (EP);
G01R31/006 (EP) (-)
Former IPC [2019/49]G01R31/02, H02H3/16, // G01R27/02, G01R27/18, G01R31/00
Former IPC [2019/04]G01R31/02, H02H3/16
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 [2019/04]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TitleGerman:ELEKTRISCHE LECKDETEKTIONSVORRICHTUNG[2019/04]
English:ELECTRIC LEAKAGE DETECTION DEVICE[2019/04]
French:DISPOSITIF DE DÉTECTION DE FUITE ÉLECTRIQUE[2019/04]
Entry into regional phase17.10.2018Translation filed 
17.10.2018National basic fee paid 
17.10.2018Search fee paid 
17.10.2018Designation fee(s) paid 
17.10.2018Examination fee paid 
Examination proceduredeletedDate on which the examining division has become responsible
17.10.2018Examination requested  [2019/04]
29.04.2020Amendment by applicant (claims and/or description)
25.10.2022Despatch of a communication from the examining division (Time limit: M04)
22.02.2023Reply to a communication from the examining division
04.09.2024Despatch of a communication from the examining division (Time limit: M01)
05.09.2024Reply to a communication from the examining division
10.10.2025Communication of intention to grant the patent
08.12.2025Fee for grant paid
08.12.2025Fee for publishing/printing paid
08.12.2025Receipt of the translation of the claim(s)
Fees paidRenewal fee
19.03.2019Renewal fee patent year 03
17.03.2020Renewal fee patent year 04
22.03.2021Renewal fee patent year 05
17.03.2022Renewal fee patent year 06
21.03.2023Renewal fee patent year 07
14.03.2024Renewal fee patent year 08
18.03.2025Renewal fee patent year 09
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Documents cited:Search[XI] JP2013130536  (SEIKO DENKI SEISAKUSHO KK et al.) [X] 1,4 * paragraphs [0001] , [0005] , [0012] - paragraph [0022]; figures 1,2,11 *[I] 2-3
 [XI] EP1555536  (FANUC LTD et al.) [X] 1,4 * paragraph [0034]; figure 3 *[I] 2-3
 [XI] US2014103939  (CHATROUX DANIEL et al.) [X] 1,4 * abstract; figures 15,16 *[I] 2-3
 [A] EP1275969  (SANYO ELECTRIC CO et al.) [A] 1-4 * paragraphs [0027] , [0028] , [0034]; figure 1 *
International search[XY] JPS5649231   [X] 1 * , column 1, line 37 to column 4, line 4; page 3, drawing (Figure Number: none) (Family: none) *[Y] 2-4
 [XY] JPS50127630   [X] 1, 4 * , page 5, line 9 to page 7, line 8; fig. 2 to 3 (Family: none) *[Y] 2
 [XY] JP2013130536  (SEIKO DENKI SEISAKUSHO KK et al.) [X] 1, 4 * , paragraph [0022]; fig. 11 (Family: none) *[Y] 2
 [XY] JP2014522628   [X] 1, 4 * , paragraphs [0034] to [0049]; fig. 1 to 5 & US 2014/0103939 A1 paragraphs [0060] to [0074]; fig. 1 to 5 & WO 2012/164073 A1 & EP 2715379 A1 & FR 2976083 A1 & FR 2976084 A1 & CN 103608689 A & KR 10-2014-0041622 A *[Y] 2
 [Y] JPH05275687   [Y] 2, 4 * , paragraph [0002] (Family: none) *
 [Y] JPH1188095  (JIMBO ELECTRIC et al.) [Y] 3-4 * , paragraphs [0013] to [0014]; fig. 1 (Family: none) *
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