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Pat. 11070086 United States, Int. Cl.22 H02J 7/00, H02J 7/02, H02J 7/14, H02J 50/12, H02M 3/22. Power receiving unit, power transmission system, and method of controlling the power receiving unit : Appl. N 15/902395 : Filed 22.02.2018 : Pub. 20.07.2021 : / Hirotaka Oshima, Kiyoto Matsui ; Assignee Fujitsu Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11070086/en?oq=US11070086.html (дата обращения: ДД.ММ.ГГГГ).