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Pat. 11049640 United States, Int. Cl.22 H01F 27/08, H01F 27/22, H01F 27/24, H01F 27/28, H01F 27/30, H02M 3/335, H02M 7/00, H05K 7/20. Circuit device and power converter : Appl. N 16/069375 : Filed 04.01.2017 : Pub. 29.06.2021 : / Kenta Fujii, Koji Nakajima, Yuji Shirakata, Jun Tahara, Takashi Kumagai ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11049640/en?oq=US11049640.html (дата обращения: ДД.ММ.ГГГГ).