Patents by Inventor Kuniaki Hirao

Kuniaki Hirao 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).

  • Position control device for electric motor
    Patent number: 9143073
    Abstract: Position control device for electric motor inputs deviation signal between angle command and angle detection value to position control section and calculates angular velocity command, inputs deviation signal between this angular velocity command and angular velocity detection value to speed control section and calculates torque current command, and controls, according to this torque current command, the electric motor current control section.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: September 22, 2015
    Assignee: MEIDENSHA CORPORATION
    Inventors: Toshimichi Takahashi, Kuniaki Hirao, Shizunori Hamada, Yasuhiro Kanazashi
  • POSITION CONTROL DEVICE FOR ELECTRIC MOTOR
    Publication number: 20130229137
    Abstract: Position control device for electric motor inputs deviation signal between angle command and angle detection value to position control section and calculates angular velocity command, inputs deviation signal between this angular velocity command and angular velocity detection value to speed control section and calculates torque current command, and controls, according to this torque current command, the electric motor current control section.
    Type: Application
    Filed: November 18, 2011
    Publication date: September 5, 2013
    Inventors: Toshimichi Takahashi, Kuniaki Hirao, Shizunori Hamada, Yasuhiro Kanazashi