Patents by Inventor Yasuhiro Hosaka

Yasuhiro Hosaka 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).

  • Electric motor-driven power steering apparatus
    Patent number: 6903524
    Abstract: In an electric motor-driven power steering apparatus which comprises a bridge circuit for connecting a power source between input terminals and also connecting an electric motor between output terminals and energizes the electric motor by this bridge circuit and operates electric motor power to a steering system, the bridge circuit includes a predetermined number of arms constructed by connecting circuits for connecting switching elements in parallel with diodes in series so that the diodes mutually become reverse polarity.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: June 7, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takayuki Kifuku, Yasuhiro Hosaka
  • Electric motor-driven power steering apparatus
    Publication number: 20040200663
    Abstract: In an electric motor-driven power steering apparatus which comprises a bridge circuit for connecting a power source between input terminals and also connecting an electric motor between output terminals and energizes the electric motor by this bridge circuit and operates electric motor power to a steering system, the bridge circuit includes a predetermined number of arms constructed by connecting circuits for connecting switching elements in parallel with diodes in series so that the diodes mutually become reverse polarity.
    Type: Application
    Filed: October 8, 2003
    Publication date: October 14, 2004
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Takayuki Kifuku, Yasuhiro Hosaka