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Pat. 11291088 United States, Int. Cl.22 H05B 6/68, H02M 3/335, H03F 3/189, H03F 3/19, H03F 3/24, H05B 6/66, H03F 3/20. High-frequency heating device : Appl. N 16/080285 : Filed 17.01.2017 : Pub. 29.03.2022 : / Yoshinobu Tomomura ; Assignee Sharp Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11291088/en?oq=US11291088.html (дата обращения: ДД.ММ.ГГГГ).