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EP 4 274 863 A2

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(88) Date of publication A3: 01.09.2022 (43) Date of publication: 15.11.2023 Bulletin 2023/46 (21) Application number: 22700567.5 (22) Date of filing: 04.01.2022

(51) International Patent Classification (IPC):  C09B 57/00(2006.01) C09K 3/00(2006.01) G02B 1/04(2006.01) G03C 1/73(2006.01) C07D 311/92(2006.01) C09K 9/02(2006.01) G02B 5/23(2006.01) (52) Cooperative Patent Classification (CPC): C07D 311/92; C09K 9/02; C09B 57/00; G02B 5/23; C07D 409/14; C07D 311/78   C-Sets: G02B 1/04, C08K 5/0041; (86) International application number: PCT/EP2022/050089 (87) International publication number: WO 2022/148752 (14.07.2022 Gazette 2022/28)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 08.01.2021 EP 21150762 (71) Applicants: Sony Group Corporation Tokyo 108-0075 (JP) Sony Europe B.V. Weybridge, Surrey KT13 0XW (GB) AL

(72) Inventors: KARIPIDOU, Zoi 70327 Stuttgart (DE) KNORR, Nikolaus 70327 Stuttgart (DE) HENNIG, Diana 70327 Stuttgart (DE) ROSSELLI, Silvia 70327 Stuttgart (DE) ONO, Hideki 70327 Stuttgart (DE) TAKANASHI, Hidehiko 70327 Stuttgart (DE) HERON, Mark 70327 Stuttgart (DE) EDGAR, Ross 70327 Stuttgart (DE) (74) Representative: Engelhard, Markus  Boehmert & Boehmert Anwaltspartnerschaft mbB Pettenkoferstrasse 22 80336 München 80336 München (DE)