Patents by Inventor Yuzo Ohtsuki

Yuzo Ohtsuki 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).

  • Forsterite-carbon refractory
    Patent number: 4497901
    Abstract: A forsterite-carbon refractory containing forsterite material, carbonaceous material, silicon carbide and magnesia refractory material.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: February 5, 1985
    Assignees: Nippon Steel Corporation, Kyushu Refractories Co., Ltd.
    Inventors: Yuzo Ohtsuki, Nobiru Komatsu, Akira Watanabe, Gouji Saeki