Patents by Inventor Masato Yakushiji

Masato Yakushiji 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).

  • Cylinder head gasket
    Patent number: 6139024
    Abstract: Disclosed is a cylinder head gasket which comprises: plural thin metal plates each having at least cylinder bores and fluid-passing bores being laminated to constitute laminated thin plates; the surfaces of the outermost thin plates of the laminated thin plates being coated with a composite material, respectively; and the surface of at least one of the thin plates adjacent to each other of the laminated thin plates being coated with the composite material to form a coating layer, whereby the adjacent thin plates are laminated with the coating layer sandwiched therebetween.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: October 31, 2000
    Assignee: Marusan Corporation
    Inventors: Masato Yakushiji, Hitoshi Kodaira