Patents by Inventor Kenji Yamana

Kenji Yamana 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 and fuel cell device
    Patent number: 6797426
    Abstract: A fuel cell with enhanced cell output includes a fuel electrode which has a fuel-diffusion layer for diffusing fuel and a fuel-reactive layer for reaction of the fuel; an oxygen electrode which has an oxygen-diffusion layer for diffusing oxygen and an oxygen-reactive layer for reaction of the oxygen; and an electrolyte layer between the fuel electrode and the oxygen electrode. The fuel-reactive layer is in contact with the fuel-diffusion layer, and the oxygen-reactive layer is in contact with the oxygen-diffusion layer. Further, the fuel-diffusion layer has high water-repellency than the oxygen-diffusion layer.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 28, 2004
    Assignee: Kabushiki Kaisha Equos Research
    Inventors: Taizo Yamamoto, Masafumi Kobayashi, Kenji Yamana, Hidemi Kato
  • Fuel cell and fuel cell device
    Publication number: 20010041282
    Abstract: A fuel cell comprises a fuel electrode which has a fuel-diffusion layer for diffusing fuel and a fuel-reactive layer for having the fuel react; an oxygen electrode which has an oxygen-diffusion layer for diffusing oxygen and an oxygen-reactive layer for having the oxygen react; an electrolyte layer which is arranged between the fuel electrode and the oxygen electrode. In this fuel cell, the fuel-reactive layer is in contact with the fuel-diffusion layer, and the oxygen-reactive layer is in contact with the oxygen-diffusion layer. Further, the fuel-diffusion layer has higher water-repellency than that of the oxygen-diffusion layer. According to this fuel cell, cell outputs of fuel cells can be enhanced. Thus, fuel cells and fuel cell devices, which bring high cell outputs, can be provided.
    Type: Application
    Filed: March 30, 2001
    Publication date: November 15, 2001
    Inventors: Taizo Yamamoto, Masafumi Kobayashi, Kenji Yamana, Hidemi Kato
  • Terminal apparatus for resetting by remote control
    Patent number: 5136715
    Abstract: A terminal apparatus having a data processing circuit wherein a reset command, which is sent from another station through the same transmission line and according to the same procedure as normal data sent from the station, is detected, and then the data processing circuit is reset in accordance with the reset command. Further, a data renewing command, which is also sent from another station through the same transmission line and according to the same procedure as normal data sent from the station, is detected, and then a content of a data storage in the terminal apparatus is renewed in accordance with the data renewal command.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: August 4, 1992
    Assignee: Fujitsu Limited
    Inventors: Ryosuke Hirose, Nobumasa Ohya, Hiroshi Takizawa, Kenji Yamana, Seijun Tanikawa, Takahiro Yamamoto, Atsushi Suzuki