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Pat. 9887590 United States, Int. Cl.22 H02J 50/10, H01H 47/22, H02J 50/12, H02J 50/40, H02J 50/50, H02J 50/80, H02M 7/04, H02M 7/44, H04B 5/00. Wireless power transmission system : Appl. N 15/258267 : Filed 07.09.2016 : Pub. 06.02.2018 : / Satoru Kikuchi, Tsutomu Sakata, Eiji Takahashi, Hiroshi Kanno ; Assignee Panasonic Intellectual Property Management Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9887590/en?oq=US9887590.html (дата обращения: ДД.ММ.ГГГГ).