Extract from the Register of European Patents

EP About this file: EP4346233

EP4346233 - SEMICONDUCTOR DEVICE AND ELECTRONIC APPARATUS [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  16.05.2025
Database last updated on 26.03.2026
FormerGrant of patent is intended
Status updated on  22.01.2025
FormerRequest for examination was made
Status updated on  30.08.2024
FormerThe application has been published
Status updated on  01.03.2024
Most recent event   Tooltip20.03.2026Lapse of the patent in a contracting state
New state(s): RO
published on 22.04.2026 [2026/17]
Applicant(s)For all designated states
Seiko Epson Corporation
1-6, Shinjuku 4-chome
Shinjuku-ku
Tokyo 160-8801 / JP
[2024/14]
Inventor(s)01 / KATAYAMA, Takao
Suwa-shi, 392-8502 / JP
02 / FUKUZAWA, Akihiro
Suwa-shi, 392-8502 / JP
03 / BAISHO, Fumihito
Suwa-shi, 392-8502 / JP
04 / NONAKA, Tsutomu
Suwa-shi, 392-8502 / JP
 [2024/14]
Representative(s)Lewis Silkin LLP
Arbor
255 Blackfriars Road
London SE1 9AX / GB
[2024/14]
Application number, filing date23199921.026.09.2023
[2024/14]
Priority number, dateJP2022015360227.09.2022         Original published format: JP 2022153602
[2024/14]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4346233
Date:03.04.2024
Language:EN
[2024/14]
Type: B1 Patent specification 
No.:EP4346233
Date:18.06.2025
Language:EN
[2025/25]
Search report(s)(Supplementary) European search report - dispatched on:EP12.02.2024
ClassificationIPC:H04R29/00, H03F3/185, H03F3/217
[2025/07]
CPC:
H04R29/001 (EP); H03F3/45475 (US); H03F3/185 (EP);
H03F3/2173 (EP); H03H11/0466 (US); H03F2200/03 (EP);
H03F2200/331 (EP); H03F2200/336 (US); H03F2200/387 (US);
H04R2499/13 (EP) (-)
Former IPC [2024/14]H04R29/00, H03F3/185
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,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/40]
Former [2024/14]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  ME,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:HALBLEITERBAUELEMENT UND ELEKTRONISCHE VORRICHTUNG[2024/14]
English:SEMICONDUCTOR DEVICE AND ELECTRONIC APPARATUS[2024/14]
French:DISPOSITIF À SEMI-CONDUCTEUR ET APPAREIL ÉLECTRONIQUE[2024/14]
Examination procedure27.08.2024Examination requested  [2024/40]
27.08.2024Date on which the examining division has become responsible
23.01.2025Communication of intention to grant the patent
13.05.2025Fee for grant paid
13.05.2025Fee for publishing/printing paid
13.05.2025Receipt of the translation of the claim(s)
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.
Lapses during opposition  TooltipAT18.06.2025
BG18.06.2025
CZ18.06.2025
EE18.06.2025
ES18.06.2025
FI18.06.2025
HR18.06.2025
LV18.06.2025
NL18.06.2025
PL18.06.2025
RO18.06.2025
SK18.06.2025
SM18.06.2025
NO18.09.2025
RS18.09.2025
GR19.09.2025
IS18.10.2025
PT20.10.2025
[2026/17]
Former [2026/11]AT18.06.2025
BG18.06.2025
CZ18.06.2025
EE18.06.2025
ES18.06.2025
FI18.06.2025
HR18.06.2025
LV18.06.2025
NL18.06.2025
PL18.06.2025
SK18.06.2025
SM18.06.2025
NO18.09.2025
RS18.09.2025
GR19.09.2025
IS18.10.2025
PT20.10.2025
Former [2026/07]BG18.06.2025
FI18.06.2025
HR18.06.2025
LV18.06.2025
NL18.06.2025
NO18.09.2025
RS18.09.2025
GR19.09.2025
IS18.10.2025
PT20.10.2025
Former [2026/03]BG18.06.2025
FI18.06.2025
HR18.06.2025
LV18.06.2025
NL18.06.2025
NO18.09.2025
RS18.09.2025
GR19.09.2025
PT20.10.2025
Former [2025/52]BG18.06.2025
FI18.06.2025
HR18.06.2025
LV18.06.2025
NL18.06.2025
NO18.09.2025
RS18.09.2025
GR19.09.2025
Former [2025/49]BG18.06.2025
FI18.06.2025
HR18.06.2025
LV18.06.2025
NO18.09.2025
RS18.09.2025
GR19.09.2025
Former [2025/48]BG18.06.2025
FI18.06.2025
HR18.06.2025
NO18.09.2025
RS18.09.2025
GR19.09.2025
Former [2025/46]FI18.06.2025
Documents cited:Search[A] US2015030167  (PAN YANG et al.)
 [A] US2012294450  (OZCAN KORAY et al.)
 [A] US2011241774  (NUSSBAUM MICHAEL et al.) [A] 1-8 * paragraphs [0022] - [0023] - [0 45] - [0051]; figure 2 *
 [A] US2022086577  (RAMAMURTHY VENKATA RAMANAN et al.) [A] 1-8 * paragraph [0087] - paragraph [0102]; figures 2, 6 *
by applicantJP2022153602
 JP2012199854
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.