Patents by Inventor Mutsuml Kikuchi

Mutsuml 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).

  • Electronic equipment with fuel cell-power supply unit
    Patent number: 7977001
    Abstract: Fuel concentration near a power generator of a DMFC is adjusted by decreasing current taken from the DMFC when the concentration near the power generator of the DMFC is higher than an optimum value and increasing the current taken from the DMFC when the concentration near the power generator of the DMFC is lower than the optimum value. Since the fuel does not come into direct contact with the power generator in the DMFC in a portion from a cartridge to the power generator in the DMFC, drying of the fuel is suppressed. By providing an auxiliary tank capable of storing fuel, concentration of methanol supplied near the power generator of the DMFC is lowered upon activation after long-time storage.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: July 12, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Yasuaki Norimatsu, Akihiko Kanouda, Mutsuml Kikuchi
  • Electronic equipment with cell-power supply unit
    Publication number: 20070059568
    Abstract: Fuel concentration near a power generator of a DMFC is adjusted by decreasing current taken from the DMFC when the concentration near the power generator of the DMFC is higher than an optimum value and increasing the current taken from the DMFC when the concentration near the power generator of the DMFC is lower than the optimum value. Since the fuel does not come into direct contact with the power generator in the DMFC in a portion from a cartridge to the power generator in the DMFC, drying of the fuel is suppressed. By providing an auxiliary tank capable of storing fuel, concentration of methanol supplied near the power generator of the DMFC is lowered upon activation after long-time storage.
    Type: Application
    Filed: September 5, 2006
    Publication date: March 15, 2007
    Inventors: Yasuaki Norimatsu, Akihiko Kanouda, Mutsuml Kikuchi