Patents by Inventor Tetsuroh Kikuchi

Tetsuroh Kikuchi 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).

  • Fuel cell system, related method and current measuring device for fuel cell system
    Patent number: 7670700
    Abstract: A fuel cell system, control method and current measuring device for a power unit are disclosed. The fuel cell system includes a fuel cell having local areas, a current measuring device associated with at least one of the local areas to measure localized current related to a specified operating characteristic, and a control section for diagnosing an operating condition of the fuel cell in response to localized current to enable optimum control of the fuel cell depending upon a specified operating characteristic determined by localized current. The control method controls the operating condition of the fuel cell in response to localized current indicative of the specified operating characteristic of the fuel cell. The current measuring device includes an electrical conductor formed with a recessed portion, a localized current conductor received in the recessed portion, and a current sensor for detecting current flowing across the localized current conductor.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: March 2, 2010
    Assignee: Denso Corporation
    Inventors: Tomonori Imamura, Toshiyuki Kawai, Shinya Sakaguchi, Kunio Okamoto, Hideshi Izuhara, Hideki Kashiwagi, Tetsuroh Kikuchi
  • Fuel cell system, related method and current measuring device for fuel cell system
    Publication number: 20050053814
    Abstract: A fuel cell system, control method and current measuring device for a power unit are disclosed. The fuel cell system includes a fuel cell having local areas, a current measuring device associated with at least one of the local areas to measure localized current related to a specified operating characteristic, and a control section for diagnosing an operating condition of the fuel cell in response to localized current to enable optimum control of the fuel cell depending upon a specified operating characteristic determined by localized current. The control method controls the operating condition of the fuel cell in response to localized current indicative of the specified operating characteristic of the fuel cell. The current measuring device includes an electrical conductor formed with a recessed portion, a localized current conductor received in the recessed portion, and a current sensor for detecting current flowing across the localized current conductor.
    Type: Application
    Filed: September 2, 2004
    Publication date: March 10, 2005
    Applicant: DENSO CORPORATION
    Inventors: Tomonori Imamura, Toshiyuki Kawai, Shinya Sakaguchi, Kunio Okamoto, Hideshi Izuhara, Hideki Kashiwagi, Tetsuroh Kikuchi