Patents Assigned to Sumitomo Special Metals, Ltd.
  • Shape memory alloys
    Patent number: 4407776
    Abstract: A shape memory alloy consisting essentially of, by weight ratio, 2 to 15% aluminium, 0.01 to 3% beryllium and the balance being substantially copper, with impurities being inevitably present in the process of preparation, and a shape memory alloy further including 0.05 to 15% zinc, both including composition ranges which allows cold work.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: October 4, 1983
    Assignee: Sumitomo Special Metals, Ltd.
    Inventor: Kikuo Suzuki