Patents by Inventor Yoshihiro Sugai

Yoshihiro Sugai 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).

  • Brake disk material for railroad vehicle
    Patent number: 5028494
    Abstract: An aluminum composite material as a brake disk material for railroad vehicles is obtained by dispersing and mixing reinforcement particles of alumina, silicon carbide or the like into an aluminum alloy. The reinforcement particles are 5 to 100 .mu.m in diameter, and are dispersed uniformly in the alloy in an amount of 1 to 25% by weight. An extremely excellent brake disk material for railroad vehicles is thus provided which is light in weight and has high strength, good thermal conductivity and high wear resistance.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: July 2, 1991
    Assignees: Railway Technical Research Institute, Mitsubishi Aluminum Kabushiki Kaisha
    Inventors: Taro Tsujimura, Shuji Manabe, Akira Watanabe, Yoshihiro Sugai