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Pat. 10014793 United States, Int. Cl.22 H02M 7/00, H02J 9/06, H02M 5/458, H02M 7/217, H02M 7/537, H02M 7/5387. Power conversion unit, power converter, and power conversion method : Appl. N 15/025370 : Filed 10.03.2014 : Pub. 03.07.2018 : / Akira Mima, Yukio Hattori, Tetsuya Kawashima, Yuichi Mabuchi, Daisuke Matsumoto, Hiroshi Kamiduma ; Assignee Hitachi Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10014793/en?oq=US10014793.html (дата обращения: ДД.ММ.ГГГГ).