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(11)

EP 4 740 228 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24732524.4 (22) Date of filing: 14.06.2024

(51) International Patent Classification (IPC):  H01F 7/20(2006.01) G21B 1/05(2006.01) H01F 27/28(2006.01) H01F 27/16(2006.01) (52) Cooperative Patent Classification (CPC): H01F 27/2876; H01F 7/20; G21B 1/05; H01F 27/16 (86) International application number: PCT/EP2024/066637 (87) International publication number: WO 2025/008161 (09.01.2025 Gazette 2025/02)

(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 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: 05.07.2023 EP 23183628 (71) Applicant: Novatron Fusion Group AB 167 33 Bromma (SE)	(72) Inventor: JÄDERBERG, Jan 163 47 Spånga (SE) (74) Representative: AWA Sweden AB  Box 5117 200 71 Malmö 200 71 Malmö (SE)