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Pat. 10345827 United States, Int. Cl.22 H02P 6/16, G05B 19/19, G05D 3/20, H02M 5/458. Motor control device and motor control method, control system and location estimation method used in control system : Appl. N 13/814576 : Filed 06.08.2011 : Pub. 09.07.2019 : / Jun Otsuji, Akihiro Ito, Hirokazu Watanabe, Hideyuki Odagiri ; Assignee Nidec Sankyo Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10345827/en?oq=US10345827.html (дата обращения: ДД.ММ.ГГГГ).