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Pat. 11165341 United States, Int. Cl.22 H02M 1/44, H01F 27/40, H01G 4/40, H02M 3/155, H01F 17/00, H01G 4/38, H01L 23/64, H01L 23/66, H02M 3/04. Noise reduction circuit and noise reduction element : Appl. N 16/446695 : Filed 20.06.2019 : Pub. 02.11.2021 : / Hirokazu Yazaki, Takanori Tsuchiya ; Assignee Murata Manufacturing Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11165341/en?oq=US11165341.html (дата обращения: ДД.ММ.ГГГГ).