Patents by Inventor Keizo Iwasaki

Keizo Iwasaki 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).

  • Ni-Ti-Cu shape memory alloy electrothermal actuator element
    Publication number: 20020112788
    Abstract: An Ni—Ti—Cu shape memory alloy electrothermal actuator element that recovers its original shape by electrical heating, having a wire diameter of 0.5 mm or less, comprising an Ni—Ti—Cu shape memory alloy wire which contains 49.0 to 51.0 at % of Ti, and 5.0 to 12.0 at % of Cu, with the balance being made of Ni, wherein the actuator element has a deterioration rate of shape strain recovery of 0.5% or less after repeating desired times of shape recovery movement.
    Type: Application
    Filed: October 22, 2001
    Publication date: August 22, 2002
    Inventors: Toyonobu Tanaka, Hiroshi Horikawa, Keizo Iwasaki, Kengo Mitose