Patents by Inventor Junichi Ulyama

Junichi Ulyama 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).

  • Actuator used shape memory alloy and display conversion device of signs
    Patent number: 4914908
    Abstract: An actuator used shape memory alloy and a display conversion device of signs characterized in that, in the actuator equipped with a shape memory alloy allowing a movable body to work in one direction by the restoration force to the memorized shape at the time of temperature rising, a control base standing opposite to at least part of said movable body is provided, concave portions are provided to one of said movable body and control base and, at the same time, a control element is provided to the other thereof to guide said control element to said concave portion and to press said concave portion and control element against one another by a fixed resilience.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: April 10, 1990
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Masashi Sugiyama, Isamu Ohishi, Morio Handa, Junichi Ulyama