Patents by Inventor Toru Someya

Toru Someya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Brushless motor control apparatus and control method and motor system
    Patent number: 7893640
    Abstract: A brushless motor control apparatus includes a mask processing unit to which digital induced voltage signal is input, a energizing current timing generation processing unit, a pulse width detection unit, and an advance angle correction unit for performing advance angle correction. The pulse width detection unit measures pulse width of spike voltage, and the advance angle correction unit calculates the correction to the advance angle according to the length of this pulse width. The energizing current timing generation processing unit takes half the value obtained after subtracting the correction value from the edge interval of the position detection signal generated in the mask processing unit as the advance angle.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: February 22, 2011
    Assignee: Mitsuba Corporation
    Inventors: Toru Someya, Shinji Shibuya, Toshiaki Isomura
  • Brushless Motor Control Apparatus and Control Method and Motor System
    Publication number: 20090009117
    Abstract: A brushless motor control apparatus includes a mask processing unit to which digital induced voltage signal is input, a energizing current timing generation processing unit, a pulse width detection unit, and an advance angle correction unit for performing advance angle correction. The pulse width detection unit measures pulse width of spike voltage, and the advance angle correction unit calculates the correction to the advance angle according to the length of this pulse width. The energizing current timing generation processing unit takes half the value obtained after subtracting the correction value from the edge interval of the position detection signal generated in the mask processing unit as the advance angle.
    Type: Application
    Filed: April 4, 2006
    Publication date: January 8, 2009
    Inventors: Toru Someya, Shinji Shibuya, Toshiaki Isomura