Patents by Inventor Kazuya Tateoka

Kazuya Tateoka 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).

  • Motor control device
    Patent number: 10122303
    Abstract: The motor control device is an electric motor control device including a control unit (control circuit unit) configured to output a forward-rotation command or a reverse-rotation command to the electric motor. The control unit includes a position detector (door opening/closing information generation circuit) configured to detect a rotation direction of the electric motor when a detection signal is input from a rotation sensor (Hall integrated circuit (IC)), which detects the rotation of the electric motor, while no current is supplied to the electric motor. The control unit includes an electric current supply device (pulse width modulation (PWM) command generation circuit) configured to supply an electric current by which the electric motor is rotated in an opposite direction to the detected rotation direction by increasing an electric current supply duty ratio every time the detection signal is switched.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: November 6, 2018
    Assignee: Mitsuba Corporation
    Inventors: Hitoshi Roppongi, Kazuya Tateoka, Katsuhiro Tanino, Atsushi Nakamura
  • MOTOR CONTROL DEVICE
    Publication number: 20150061561
    Abstract: The motor control device is an electric motor control device including a control unit (control circuit unit) configured to output a forward-rotation command or a reverse-rotation command to the electric motor. The control unit includes a position detector (door opening/closing information generation circuit) configured to detect a rotation direction of the electric motor when a detection signal is input from a rotation sensor (Hall integrated circuit (IC)), which detects the rotation of the electric motor, while no current is supplied to the electric motor. The control unit includes an electric current supply device (pulse width modulation (PWM) command generation circuit) configured to supply an electric current by which the electric motor is rotated in an opposite direction to the detected rotation direction by increasing an electric current supply duty ratio every time the detection signal is switched.
    Type: Application
    Filed: April 16, 2013
    Publication date: March 5, 2015
    Inventors: Hitoshi Roppongi, Kazuya Tateoka, Katsuhiro Tanino, Atsushi Nakamura