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Pat. 10389259 United States, Int. Cl.22 H02M 3/335, G03G 15/00, H02M 1/08, H02M 1/36, H02M 1/00. Power supply apparatus and image forming apparatus switching a capacitance value of a resonance capacitor at a time of a continuous operation and an intermittent operation : Appl. N 16/058280 : Filed 08.08.2018 : Pub. 20.08.2019 : / Hiroki Asano, Yasuhiro Shimura ; Assignee Canon Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10389259/en?oq=US10389259.html (дата обращения: ДД.ММ.ГГГГ).