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Pat. 10411521 United States, Int. Cl.22 H02J 50/12, H02J 50/40, H02J 50/50, H02J 50/80, H02M 3/335, H02M 7/5387, H04B 5/00, H04B 5/02, H02M 1/00. Wireless power transmission system : Appl. N 15/622297 : Filed 14.06.2017 : Pub. 10.09.2019 : / Tsutomu Sakata, Hiroshi Kanno, Eiji Takahashi, Satoru Kikuchi ; Assignee Panasonic Intellectual Property Management Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10411521/en?oq=US10411521.html (дата обращения: ДД.ММ.ГГГГ).