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Pat. 10749381 United States, Int. Cl.22 H02J 50/12, H02M 7/48, H02J 7/02, H02M 1/00. Wireless power transmission device and method of controlling the same : Appl. N 15/801871 : Filed 02.11.2017 : Pub. 18.08.2020 : / Dong Woo Han, Byoung Woo Ryu, Hyo Young Kim, Se Joo Kim, Young Seung Roh ; Assignee Wits Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10749381/en?oq=US10749381.html (дата обращения: ДД.ММ.ГГГГ).