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EP 4 530 476 A3

(12)	EUROPEAN PATENT APPLICATION

(88) Date of publication A3: 25.06.2025 Bulletin 2025/26 (43) Date of publication A2: 02.04.2025 Bulletin 2025/14 (21) Application number: 25152288.4 (22) Date of filing: 13.03.2023

(51) International Patent Classification (IPC):  F04D 25/08(2006.01) F04D 29/44(2006.01) F24F 13/20(2006.01) F04D 29/66(2006.01) F04D 17/04(2006.01) F24F 1/0007(2019.01) F24F 13/24(2006.01) (52) Cooperative Patent Classification (CPC): F04D 17/04; F24F 1/0025; F24F 13/24; F24F 1/0007; F24F 13/20; F24F 1/0057; F05D 2250/51; F04D 29/441; F04D 29/663

(84) Designated Contracting States: 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 (30) Priority: 22.03.2022 JP 2022044828 (62) Application number of the earlier application in accordance with Art. 76 EPC: 23774622.7 / 4498014 (71) Applicant: Panasonic Intellectual Property Management Co., Ltd. Kadoma-shi, Osaka 571-0057 (JP)	(72) Inventors: WADA, Masanobu Kadoma-shi, Osaka, 571-0057 (JP) OSHIRO, Takahiro Kadoma-shi, Osaka, 571-0057 (JP) NAGATA, Takeshi Kadoma-shi, Osaka, 571-0057 (JP) (74) Representative: Eisenführ Speiser  Patentanwälte Rechtsanwälte PartGmbB Gollierstraße 4 80339 München 80339 München (DE)