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EP 4 680 427 A1

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(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24709174.7 (22) Date of filing: 26.02.2024

(51) International Patent Classification (IPC):  B23K 26/082(2014.01) B23K 26/142(2014.01) B23K 26/362(2014.01) B23K 26/53(2014.01) B23K 26/08(2014.01) B23K 26/352(2014.01) B23K 26/402(2014.01) B41J 2/44(2006.01) (52) Cooperative Patent Classification (CPC): B23K 26/082; B23K 26/0838; B23K 26/142; B23K 26/352; B23K 26/362; B23K 26/402; B23K 26/53; B23K 26/0853; B41J 2/442; B41J 2/4753 (86) International application number: PCT/IB2024/051796 (87) International publication number: WO 2024/189445 (19.09.2024 Gazette 2024/38)

(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 Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 13.03.2023 JP 2023038703 (71) Applicant: Ricoh Company, Ltd. Tokyo 143-8555 (JP)	(72) Inventor: FUJII, Toshishige Tokyo 143-8555 (JP) (74) Representative: SSM Sandmair  Patentanwälte Rechtsanwalt Partnerschaft mbB Joseph-Wild-Straße 20 81829 München 81829 München (DE)