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Pat. 10693387 United States, Int. Cl.22 H02M 5/12, H02M 1/00, H02M 3/06, H02M 5/06, H02M 5/293. Transformer : Appl. N 14/911245 : Filed 29.08.2014 : Pub. 23.06.2020 : / Hideaki Nakahata, Kenichi Hirotsu, Nobuo Shiga, Takashi Ohira, Kyohei Yamada, Daiya Egashira ; Assignee Toyohashi University of Technology Nuc, Sumitomo Electric Industries Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10693387/en?oq=US10693387.html (дата обращения: ДД.ММ.ГГГГ).