Patents by Inventor Toshiaki Oya

Toshiaki Oya 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).

  • Publication number: 20040140148
    Abstract: The present invention provides an electric power steering device capable of attaining the expected control and control characteristics while using phase compensator. The device comprises a target current setting unit including a compensation unit having an inertia compensating unit for outputting an inertial compensating current value and a damper control unit for outputting a damping control current value. The device further comprises a compensation unit for outputting a compensation current value; a basic assist current setting unit for outputting a basic assist current value; and a phase compensating unit connected with the downstream stage of the basis assist current setting unit for outputting a target current value by performing a phase compensation of an added current value while receiving no influence from the dead zone or the characteristic break points of an assist table for setting the basic assist current value.
    Type: Application
    Filed: December 22, 2003
    Publication date: July 22, 2004
    Applicant: Koyo Seiko Co., Ltd.
    Inventors: Katsutoshi Nishizaki, Toshiaki Oya, Masahiko Sakamaki