Patents by Inventor Shiji Naoki

Shiji Naoki 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 manufacturing a fuel cell bipolar plate
    Patent number: 7718108
    Abstract: A method of manufacturing a fuel cell bipolar plate that improves dimensional accuracy even with viscous material, eliminates the need for large-scale production equipment such as a press to make a pre-formed product, and furthermore, enables manufacturing time for the fuel cell bipolar plate to be reduced. Powdered raw material A containing electrically conductive material and resin is dropped into a filling container so that a top thereof is flat. The powdered raw material A inside the filling container is then heated to form a temporary cast B, the temporary cast B is set in a mold in which a predetermined pattern is formed, and heated and compressed to form a fuel cell bipolar plate.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: May 18, 2010
    Assignee: Nisshinbo Industries Inc.
    Inventor: Shiji Naoki
  • Method of manufacturing a fuel cell bipolar plate
    Publication number: 20060199065
    Abstract: A method of manufacturing a fuel cell bipolar plate that improves dimensional accuracy even with viscous material, eliminates the need for large-scale production equipment such as a press to make a pre-formed product, and furthermore, enables manufacturing time for the fuel cell bipolar plate to be reduced. Powdered raw material A containing electrically conductive material and resin is dropped into a filling container so that a top thereof is flat. The powdered raw material A inside the filling container is then heated to form a temporary cast B, the temporary cast B is set in a mold in which a predetermined pattern is formed, and heated and compressed to form a fuel cell bipolar plate.
    Type: Application
    Filed: February 14, 2006
    Publication date: September 7, 2006
    Applicant: Nisshinbo Industries Inc.
    Inventor: Shiji Naoki