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Pat. 9863428 United States, Int. Cl.22 F04D 25/06, F04D 19/00, F04D 27/00, F04D 29/58, H02M 7/00, H05K 7/20. Fan control unit and power conditioner : Appl. N 14/438866 : Filed 30.10.2012 : Pub. 09.01.2018 : / Keisuke Tsujimoto, Atsushi Makitani, Kazuhiro Nishikawa, Yuji Takamori ; Assignee Sansha Electric Manufacturing Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US9863428/en?oq=US9863428.html (дата обращения: ДД.ММ.ГГГГ).