Patents by Inventor Ryuta Kimata

Ryuta Kimata 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).

  • Production of gas separators for use in fuel cells and equipment used therefor
    Patent number: 6592743
    Abstract: A method for producing a separator integrated with a gas flow channel of fuel cells efficiently at low costs without deteriorating processing accuracy and the like. A plane-facing electrode nozzle 30 is placed oppositely to the face to be processed, which is partially covered with a mask M, of base material B of a separator. While feeding electricity to the electrode nozzle 30 and the base material B of a separator, an electrolytic solution is injected and fed from the side of the electrode nozzle 30 to the face to be processed of the base material B from a direction that is almost perpendicular to the face. Thereby, the unmasked portion undergoes electrolytic etching with the electrolytic solution lying between the face to be processed and the electrode nozzle 30 to form recessed portions for making a gas flow channel.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: July 15, 2003
    Assignees: Aisin Takaoka Co., Ltd., Nippon Chemical Denshi Co., Ltd.
    Inventors: Masanori Matsukawa, Ryuta Kimata, Youhei Kuwabara, Kenji Dewaki, Shinji Dewaki
  • Production of gas separators for use in fuel cells and equipment used therefor
    Publication number: 20020050458
    Abstract: To provide a method capable of producing a separator integrated with a gas flow channel of fuel cells efficiently at low costs without deteriorating processing accuracy and the like.
    Type: Application
    Filed: June 28, 2001
    Publication date: May 2, 2002
    Inventors: Masanori Matsukawa, Ryuta Kimata, Youhei Kuwabara, Kenji Dewaki, Shinji Dewaki