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Pat. 10008953 United States, Int. Cl.22 H02M 1/00, H02M 5/45, H02M 7/00, H02M 7/217, H02J 9/06. Power conversion device and power conversion method for power conversion device : Appl. N 15/304171 : Filed 07.05.2014 : Pub. 26.06.2018 : / Hiroshi Kamizuma, Yukio Hattori, Tetsuya Kawashima, Akira Mima, Daisuke Matsumoto, Yuuichi Mabuchi ; Assignee Hitachi Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10008953/en?oq=US10008953.html (дата обращения: ДД.ММ.ГГГГ).