Patents by Inventor Masao Kumeta

Masao Kumeta 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 and device for assembling a fuel cell stack
    Patent number: 4615107
    Abstract: A method for assembling fuel cell stack comprises the steps of alternately stacking the prescribed number of fuel cells and bipolar plates to form a plurality of substacks, arranging the laid substacks on a supporting base so that the central axes of the substacks parallel to the stacking direction of the fuel cell stack are on a horizontal straight line to form a complete fuel cell stack, tying up the fuel cell stack to apply a predetermined compressive load to the fuel cell components, making the fuel cell stack vertical, and then removing said supporting base from the fuel cell stack. The supporting base on which a plurality of fuel cell substacks is provided at its both end with a pair of side plates, and a pressure plate is slidably arranged on the base and connected to driving means.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: October 7, 1986
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masao Kumeta, Masahiro Ide, Nobuyoshi Nishizawa, Nobuya Inoue, Hideki Goto