blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability
Register Forum

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
FAQ - Register Alert
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP3872558

EP3872558 - OPTICAL ISOLATOR [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  18.04.2024
Database last updated on 03.09.2024
FormerRequest for examination was made
Status updated on  30.07.2021
FormerThe international publication has been made
Status updated on  02.05.2020
Most recent event   Tooltip14.08.2024New entry: Reply to examination report 
Applicant(s)For all designated states
Shin-Etsu Chemical Co., Ltd.
4-1, Marunouchi 1-chome
Chiyoda-ku
Tokyo 100-0005 / JP
[2022/07]
Former [2021/35]For all designated states
SHIN-ETSU CHEMICAL CO., LTD.
6-1, Ohtemachi 2-chome
Chiyoda-ku
Tokyo 100-0004 / JP
Inventor(s)01 / YAHAGI, Akira
c/o Advanced Functional Materials Research
Center, SHIN-ETSU CHEMICAL CO., LTD.
13-1, Isobe 2-chome
Annaka-shi, Gunma 379-0195 / JP
02 / IKARI, Masanori
c/o Advanced Functional Materials Research
Center, SHIN-ETSU CHEMICAL CO., LTD.
13-1, Isobe 2-chome
Annaka-shi, Gunma 379-0195 / JP
03 / MATSUMOTO, Takuto
c/o Advanced Functional Materials Research
Center, SHIN-ETSU CHEMICAL CO., LTD.
13-1, Isobe 2-chome
Annaka-shi, Gunma 379-0195 / JP
 [2021/35]
Representative(s)Wibbelmann, Jobst
Wuesthoff & Wuesthoff
Patentanwälte und Rechtsanwalt PartG mbB
Schweigerstrasse 2
81541 München / DE
[N/P]
Former [2021/35]Wibbelmann, Jobst
Wuesthoff & Wuesthoff
Patentanwälte PartG mbB
Schweigerstrasse 2
81541 München / DE
Application number, filing date19877050.502.10.2019
[2021/35]
WO2019JP38848
Priority number, dateJP2018019896423.10.2018         Original published format: JP 2018198964
[2021/35]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020085017
Date:30.04.2020
Language:JA
[2020/18]
Type: A1 Application with search report 
No.:EP3872558
Date:01.09.2021
Language:EN
[2021/35]
Search report(s)International search report - published on:JP30.04.2020
(Supplementary) European search report - dispatched on:EP22.06.2022
ClassificationIPC:G02B27/28, G02F1/09, H01F7/02
[2022/29]
CPC:
G02F1/093 (EP,US); C04B35/50 (US); G02F1/0136 (US);
G02F1/055 (US); H01F7/0273 (EP); G02B27/283 (EP);
G02B27/286 (EP) (-)
Former IPC [2021/35]G02B27/28, G02F1/09
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 [2021/35]
TitleGerman:OPTISCHER ISOLIERER[2021/35]
English:OPTICAL ISOLATOR[2021/35]
French:OPTOISOLATEUR[2021/35]
Entry into regional phase07.04.2021Translation filed 
07.04.2021National basic fee paid 
07.04.2021Search fee paid 
07.04.2021Designation fee(s) paid 
07.04.2021Examination fee paid 
Examination procedure07.04.2021Examination requested  [2021/35]
02.01.2023Amendment by applicant (claims and/or description)
17.04.2024Despatch of a communication from the examining division (Time limit: M04)
14.08.2024Reply to a communication from the examining division
Fees paidRenewal fee
28.10.2021Renewal fee patent year 03
25.10.2022Renewal fee patent year 04
25.10.2023Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
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[X]JP2015108726  (FUJIKURA LTD);
 [XI]JP2016180858  (SUMITOMO METAL MINING CO);
 [X]JP2017032639  (SUMITOMO METAL MINING CO)
International search[Y]JP2008007385  (MURATA MANUFACTURING CO);
 [Y]JP2012082079  (SHINETSU CHEMICAL CO);
 [A]US2014160565  (ROGERS EVAN M [US], et al);
 [Y]JP2016109743  (SHINETSU CHEMICAL CO);
 [Y]JP2016180858  (SUMITOMO METAL MINING CO);
 [Y]JP2017090538  (FUJIKURA LTD);
 [Y]JP2017137223  (NAT INST MATERIALS SCIENCE, et al);
by applicantJPS61114420U
 JP2012083381
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.