Patents Assigned to Siro Hagishita
  • Patent number: 5000910
    Abstract: At least two kinds of element metal or half-metal powders are mechanically alloyed in a non-oxidizing atmosphere in a blending machine. Then, the resultant mechanically alloyed powdered blend is heated and pressurized in the non-oxidizing atmosphere at a temperature higher than a minimum temperature required for generating the intermetallic compound from the element powders.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: March 19, 1991
    Assignees: Masaharu Tokizane, Siro Hagishita
    Inventors: Masaharu Tokizane, Kei Ameyama, Haruhiko Sugimoto