Patents by Inventor Yoshifumi Kikutani

Yoshifumi Kikutani 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).

  • Rotary tool made of inorganic fiber-reinforced plastic
    Patent number: 5233794
    Abstract: A rotary tool for cutting, drilling, grinding, or polishing metallic or non-metallic materials is made of a compact material, which consists of an inorganic fiber reinforced plastic containing 50 to 81 volume % of inorganic long fibers selected from the following group: alumina fibers, boron fibers, silicon carbide fibers, and silicon nitride fibers, the remaining portion of the compact material consisting of a thermosetting resin matrix.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: August 10, 1993
    Assignee: Nippon Steel Corporation
    Inventors: Yoshifumi Kikutani, Kenji Kikuzawa, Isao Tajima, Kazuo Sato