Patents by Inventor Nobutane Usui

Nobutane Usui 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).

  • Multipurpose board like article for decoration and amusement
    Patent number: 4944969
    Abstract: A multipurpose board has a frame circumferentially supporting at least three transparent plates with segregating clearances between the transparent plates. Particles only partially fill each segregating clearance, the particles in the respective segregating clearances having different physical properties. When the board is moved, particle flow in each segregating clearance permitted by the only partial filling thereof forms varieties of wave-like combinations when movement is stopped, which are visible three dimentionally through the transparent plates.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: July 31, 1990
    Inventor: Nobutane Usui