Patents by Inventor Tomoyoshi MORITA

Tomoyoshi MORITA 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 driver and control method
    Patent number: 9793837
    Abstract: Disclosed herein is a motor driver including: a motor current phase detector configured to detect a motor current phase and output a result of the detection as motor current phase information; a motor phase detector configured to detect a motor phase and output a result of the detection as motor phase information; a phase correction value calculator configured to calculate a correction value based on a difference between the motor current phase information and the motor phase information and output a result of the calculation as compensation information; and a motor applied voltage calculator configured to calculate a motor applied voltage representing a voltage to be applied to the motor based on the compensation information and motor phase information received and output a result of the calculation as a phase-compensated motor applied voltage signal.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: October 17, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tetsu Nagano, Tomoyoshi Morita, Shinichi Kuroshima, Taishi Iwanaga
  • MOTOR DRIVER AND CONTROL METHOD
    Publication number: 20160254765
    Abstract: Disclosed herein is a motor driver including: a motor current phase detector configured to detect a motor current phase and output a result of the detection as motor current phase information; a motor phase detector configured to detect a motor phase and output a result of the detection as motor phase information; a phase correction value calculator configured to calculate a correction value based on a difference between the motor current phase information and the motor phase information and output a result of the calculation as compensation information; and a motor applied voltage calculator configured to calculate a motor applied voltage representing a voltage to be applied to the motor based on the compensation information and motor phase information received and output a result of the calculation as a phase-compensated motor applied voltage signal.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Inventors: Tetsu NAGANO, Tomoyoshi MORITA, Shinichi KUROSHIMA, Taishi IWANAGA