Patents by Inventor Kohei USHIDA

Kohei USHIDA 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).

  • Method of producing a separator
    Patent number: 9364883
    Abstract: This method is for producing a compact (fuel-cell separator) having a projection by pressing a plate by a die and a punch. A tip end surface of the punch presses the plate to form an overhang, and then a sidewall of the overhang is sandwiched between an inclined surface of the die and an inclined surface of the punch, and in this state the sidewall is rolled, thereby forming the projection.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: June 14, 2016
    Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Takuma Watanabe, Kohei Ushida, Shirou Fujimura
  • PRODUCING METHOD OF COMPACT
    Publication number: 20120055223
    Abstract: This method is for producing a compact (fuel-cell separator) having a projection by pressing a plate by a die and a punch. A tip end surface of the punch presses the plate to form an overhang, and then a sidewall of the overhang is sandwiched between an inclined surface of the die and an inclined surface of the punch, and in this state the sidewall is rolled, thereby forming the projection.
    Type: Application
    Filed: August 15, 2011
    Publication date: March 8, 2012
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Takuma WATANABE, Kohei USHIDA, Shirou FUJIMURA