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Pat. 11211881 United States, Int. Cl.22 H02M 7/5387, B60L 9/18, B60L 9/24, H02M 1/32, H02M 5/458, H02M 7/00, H05K 7/20, H05K 7/10. Power conversion device and electric railroad vehicle equipped with power conversion device : Appl. N 16/962308 : Filed 15.10.2018 : Pub. 28.12.2021 : / Keisuke Horiuchi, Kiyoshi Nakata, Noriyoshi Urushiwara, Shuichi Terakado, Kiyoshi Terasawa ; Assignee Hitachi Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11211881/en?oq=US11211881.html (дата обращения: ДД.ММ.ГГГГ).