Patents by Inventor Tsunao Yanase

Tsunao Yanase 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).

  • Controlled-drive toy
    Patent number: 4702718
    Abstract: A controlled-drive toy including two driving wheels independently driven by driving motors controlled by data carried by a rotary disc. The rotary disc carries white and black data segments forming a pair of data rings to represent a moving pattern for the toy. Photosensors are provided to detect reflections from the white and black segments and to produce signals to energize the driving motors. The rotary disc can be easily replaced so that a different moving pattern can be provided.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: October 27, 1987
    Assignee: Kaho Musen Limited
    Inventor: Tsunao Yanase