Patents by Inventor Yasuo Sasao

Yasuo Sasao 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).

  • Multi-direction operation device
    Patent number: 4614847
    Abstract: A multi-direction joystick device has an operation shaft swingable in plural directions. The operation shaft has switch-pushing arm portions extending radially from the shaft and returning elastic plates also extending radially beyond the tips of the arm portions in separation from the arm portions.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: September 30, 1986
    Assignee: Alps Electric Co., Ltd.
    Inventor: Yasuo Sasao