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Extract from the Register of European Patents

EP About this file: EP4296730

EP4296730 - LIGHT DIFFRACTION ELEMENT UNIT AND OPTICAL COMPUTATION DEVICE [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  24.11.2023
Database last updated on 10.07.2024
FormerThe international publication has been made
Status updated on  26.08.2022
Most recent event   Tooltip19.04.2024Change: Validation statespublished on 22.05.2024  [2024/21]
19.04.2024Change - extension statespublished on 22.05.2024  [2024/21]
Applicant(s)For all designated states
Fujikura Ltd.
1-5-1, Kiba
Koto-ku
Tokyo 135-8512 / JP
[2023/52]
Inventor(s)01 / KUSAKA, Hiroyuki
Tokyo 135-8512 / JP
02 / KASHIWAGI, Masahiro
Tokyo 135-8512 / JP
 [2023/52]
Representative(s)Plasseraud IP
104 Rue de Richelieu
CS92104
75080 Paris Cedex 02 / FR
[N/P]
Former [2023/52]Plasseraud IP
66, rue de la Chaussée d'Antin
75440 Paris Cedex 09 / FR
Application number, filing date22755783.214.01.2022
[2023/52]
WO2022JP01047
Priority number, dateJP2021002450118.02.2021         Original published format: JP 2021024501
[2023/52]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022176458
Date:25.08.2022
Language:JA
[2022/34]
Type: A1 Application with search report 
No.:EP4296730
Date:27.12.2023
Language:EN
[2023/52]
Search report(s)International search report - published on:JP25.08.2022
ClassificationIPC:G02B5/18, G02F3/00, G06N3/067
[2023/52]
CPC:
G02B5/1871 (EP); G02B5/18 (US); G02B5/1809 (EP);
G06E3/001 (EP); G06N3/067 (EP,US)
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 [2023/52]
TitleGerman:LICHTBEUGUNGSELEMENTEINHEIT UND OPTISCHE BERECHNUNGSVORRICHTUNG[2023/52]
English:LIGHT DIFFRACTION ELEMENT UNIT AND OPTICAL COMPUTATION DEVICE[2023/52]
French:UNITÉ D'ÉLÉMENT DE DIFFRACTION DE LUMIÈRE ET DISPOSITIF DE CALCUL OPTIQUE[2023/52]
Entry into regional phase27.07.2023Translation filed 
27.07.2023National basic fee paid 
27.07.2023Search fee paid 
27.07.2023Designation fee(s) paid 
27.07.2023Examination fee paid 
Examination procedure27.07.2023Examination requested  [2023/52]
Fees paidRenewal fee
27.12.2023Renewal fee patent year 03
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Cited inInternational search[Y]JP2006001050  (SONY CORP) [Y] 2-3, 7 * paragraph [0032], fig. 1 *;
 [YX]JP2009134232  (SONY CORP) [Y] 2-3, 7 * paragraphs [0028]-[0029], [0166], [0200]-[0210], [0225], [0285]-[0343], [0367], fig. 20(a), 25, 29 * [X] 1, 4-6;
 [Y]JP2010145672  (DAINIPPON PRINTING CO LTD) [Y] 2-3, 7 * paragraph [0032], fig. 1-2 *;
 [A]JP2018189939  (DAINIPPON PRINTING CO LTD) [A] 1-7* entire text, all drawings *;
 [A]WO2019147828  (HARVARD COLLEGE [US]) [A] 1-7 * the whole document, fig. 1-34 *;
 [A]JP2020024284  (DAINIPPON PRINTING CO LTD) [A] 1-7 * entire text, all drawings *
by applicantUS7847225
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.