Patents by Inventor Ishimaru Fumiya

Ishimaru Fumiya 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).

  • Liquid fuel direct supply fuel cell system and its operation controlling method and controller
    Patent number: 7618729
    Abstract: A liquid fuel direct supply fuel cell system capable of being operated under optimal conditions. A plurality of cells each having an anode and a positive electrode disposed oppositely through an electrolytic film and being fed, respectively, with liquid fuel and oxidizing agent gas are connected in series as a power generating section (11), which is then provided with a sensor section (12) for detecting the concentration of the liquid fuel in association with a temperature detected by a temperature detecting element thus producing a cell stack (1), and a controller (7) controls high concentration fuel supply amount from a high concentration fuel tank (5) to a fuel tank (2) based on an output signal from the sensor section (12).
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: November 17, 2009
    Assignee: GS Yuasa Corporation
    Inventors: Okuyama Ryoichi, Ishimaru Fumiya, Nomura Eiichi, Takemitsu Takatomo
  • Liquid fuel direct supply fuel cell system and its operation controlling method and controller
    Publication number: 20060141307
    Abstract: A liquid fuel direct supply fuel cell system capable of being operated under optimal conditions. A plurality of cells each having an anode and a positive electrode disposed oppositely through an electrolytic film and being fed, respectively, with liquid fuel and oxidizing agent gas are connected in series as a power generating section (11), which is then provided with a sensor section (12) for detecting the concentration of the liquid fuel in association with a temperature detected by a temperature detecting element thus producing a cell stack (1), and a controller (7) controls high concentration fuel supply amount from a high concentration fuel tank (5) to a fuel tank (2) based on an output signal from the sensor section (12).
    Type: Application
    Filed: September 29, 2003
    Publication date: June 29, 2006
    Inventors: Okuyama Ryoichi, Ishimaru Fumiya, Nomura Eiichi, Takemitsu Takatomo