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Pat. 11152821 United States, Int. Cl.22 H02J 50/60, G01V 3/10, H02J 7/02, H02J 50/12, H02M 7/06, H02M 7/5387. Metallic foreign object detector, wireless power transmitting device, wireless power receiving device, and wireless power transmission system : Appl. N 16/469498 : Filed 20.12.2017 : Pub. 19.10.2021 : / Kazunori Oshima, Akira Gotani, Kazuki Kondo, Narutoshi Fukuzawa ; Assignee Tdk Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11152821/en?oq=US11152821.html (дата обращения: ДД.ММ.ГГГГ).