Patents by Inventor Hideyoshi Ozeki

Hideyoshi Ozeki 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).

  • Brick for sliding closure of vessel for holding molten metal
    Patent number: 4108675
    Abstract: A brick for a slide closure of a vessel for holding molten metal. The brick is made by forming and then subjecting to reducing-burninng a compound comprising an acid or neutral refractory material as a base material, graphite and a binding agent.
    Type: Grant
    Filed: May 11, 1977
    Date of Patent: August 22, 1978
    Assignees: Nippon Kokan Kabushiki Kaisha, Tokyo Yogyo Kabushiki Kaisha
    Inventors: Yoshimori Tomita, Hideyoshi Ozeki, Hisashi Takashima