Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroyuki Isegawa0
Hirofumi Atarashi0
Date of Patent
September 28, 2010
Patent Application Number
11998429
Date Filed
November 30, 2007
Patent Primary Examiner
Patent abstract
A motor control method that includes the steps of: rotationally driving a motor that is provided with a rotor having permanent magnet pieces, and a stator; and short circuiting a plurality of phases of the motor when the rotational frequency of the motor is equal to or greater than a predetermined rotational frequency.
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