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Pat. 10468992 United States, Int. Cl.22 H05K 9/00, B60L 1/00, B60L 3/00, B60L 13/00, H02M 1/08, H02M 3/335, H02M 7/537, H02M 3/337, H02M 7/48. Auxiliary power supply device for electric rolling stock : Appl. N 15/516788 : Filed 22.10.2014 : Pub. 05.11.2019 : / Takeshi Tanaka, Takeshi Yamamoto, Naoki Kuraba ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10468992/en?oq=US10468992.html (дата обращения: ДД.ММ.ГГГГ).