Patents Assigned to Komatsu Haumetto Kabushiki Kaisha
  • Pattern material used for investment casting
    Patent number: 4758613
    Abstract: A material for making a pattern used in the investment casting, the material including wax and starch between 2% by weight and 70% by weight.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: July 19, 1988
    Assignees: Komatsu Haumetto Kabushiki Kaisha, Kabushiki Kaisha Nard Kenkyusho
    Inventors: Shigeru Kawano, Kouichi Hirooka, Susumu Tanabe, Motoko Mishima