Patents by Inventor Toyohide Yamaguchi

Toyohide Yamaguchi 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).

  • Graphite-containing monolithic refractory material
    Patent number: 6288001
    Abstract: A graphite-containing monolithic refractory material comprises at least one component selected from alumina and alumina-magnesia spinel, which are divided into selected particle size regions, artificial graphite having a selected average particle size, and pitch powder. The refractory material may optionally comprise a selected amount of silicon carbide having a selected average particle size. The graphite-containing monolithic refractory material exhibits excellent casting workability at a low moisture content, and both excellent corrosion resistance and spalling resistance. The refractory material is suitable as a casting monolithic refractory material for lining a topedo ladle car.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: September 11, 2001
    Assignee: Kawasaki Steel Corporation
    Inventors: Yoshisato Kiyota, Masato Kumagai, Masao Nanbu, Shigenobu Takata, Masakazu Iida, Noboru Komatsubara, Toyohide Yamaguchi