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Pat. 10020670 United States, Int. Cl.22 H01F 27/42, H01F 38/14, H02J 5/00, H02J 7/00, H02J 7/02, H02J 50/12, H02J 50/40, H02J 50/80, F02P 3/02, H02M 1/12, H02M 3/06. Power receiving device and wireless power supply system : Appl. N 14/982331 : Filed 29.12.2015 : Pub. 10.07.2018 : / Koichiro Kamata ; Assignee Semiconductor Energy Laboratory Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10020670/en?oq=US10020670.html (дата обращения: ДД.ММ.ГГГГ).