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Pat. 10007224 United States, Int. Cl.22 H02M 3/337, G03G 15/00, H02M 3/335, H02M 3/338, H04N 1/00. Power supply device changing target voltage depending on operation mode, and image forming device having power supply device : Appl. N 15/297663 : Filed 19.10.2016 : Pub. 26.06.2018 : / Masayuki Watanabe, Yuhei Tatsumoto, Akihiro Hayashi, Makoto Shimazoe ; Assignee Konica Minolta Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10007224/en?oq=US10007224.html (дата обращения: ДД.ММ.ГГГГ).