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(11)

EP 3 981 018 A1

(12)

(43) Date of publication: 13.04.2022 Bulletin 2022/15 (21) Application number: 20837316.7 (22) Date of filing: 09.07.2020

(51) International Patent Classification (IPC):  H01F 27/26(2006.01) H01F 27/28(2006.01) H01F 17/06(2006.01) H01F 27/30(2006.01) H01F 27/02(2006.01) H01F 17/00(2006.01) (52) Cooperative Patent Classification (CPC): H01F 27/006; H01F 27/2895; H01F 2027/2814; H01F 27/06; H01F 2027/065 (86) International application number: PCT/US2020/041349 (87) International publication number: WO 2021/007403 (14.01.2021 Gazette 2021/02)

(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: 09.07.2019 US 201962871845 P (71) Applicant: Murata Manufacturing Co., Ltd. Nagaokakyo-shi, Kyoto 617-8555 (JP)	(72) Inventors: FRANCIS, Lee Milton Keynes, Buckinghamshire MK8 0ES (GB) JARVIS, William Milton Keynes, Buckinghamshire MK8 0ES (GB) TANGE, Takayuki Milton Keynes, Buckinghamshire MK8 0ES (GB) (74) Representative: Behr, Wolfgang  Lorenz Seidler Gossel Rechtsanwälte Patentanwälte Partnerschaft mbB Widenmayerstraße 23 80538 München 80538 München (DE)