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Pat. 10306054 United States, Int. Cl.22 H04M 1/74, H01F 17/00, H01F 27/28, H01F 27/38, H02M 1/12, H02M 3/335, H04N 1/00. Image forming apparatus to which noise counter-measure is applied : Appl. N 15/726849 : Filed 06.10.2017 : Pub. 28.05.2019 : / Teruhiko Suzuki, Masahiro Shinotsuka, Kazunori Miyake ; Assignee Canon Inc ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10306054/en?oq=US10306054.html (дата обращения: ДД.ММ.ГГГГ).