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Pat. 9893537 United States, Int. Cl.22 H02J 5/00, H02J 7/02, H02J 50/05, H02J 50/12, H02J 50/90, H02M 3/335, H04B 5/00. Power transmission device and wireless power transmission system : Appl. N 14/823150 : Filed 11.08.2015 : Pub. 13.02.2018 : / Hironori Sakai ; Assignee Murata Manufacturing Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9893537/en?oq=US9893537.html (дата обращения: ДД.ММ.ГГГГ).