Patents by Inventor Tokushiro Hasegawa

Tokushiro Hasegawa 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).

  • Wear resistant alloy
    Patent number: 4292074
    Abstract: A wear resistant alloy having the composition of 30%-60% Ni, 6%-10% Si, 0.5%-3% B, 0.5%-2% C, 2%-8% carbide and boride forming element selected from Cr, Mo, and W, and 30%-60% Fe, wherein Si and B form silicides and borides, respectively, of Ni and Fe of the desirable density to provide a good balance between hardness, strength, fusibility, grindability, brittleness, etc. of the material, and to maintain its melting point as low as possible and to allow for good self-fluxing characteristic and moldability.
    Type: Grant
    Filed: August 31, 1979
    Date of Patent: September 29, 1981
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Yoshiro Komiyama, Katsumi Kondo, Yoshio Fuwa, Akira Matsui, Shoji Miyazaki, Tokushiro Hasegawa