Patents by Inventor Mitsuo Nishiya

Mitsuo Nishiya 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).

  • Patent number: 4205491
    Abstract: A vibration barrel grinding device particularly for light articles wherein the outer peripheral wall of a vibration barrel having a circular or polygonal grinding tub or a toroidal-shaped tub is formed of a pressurized flow wall and a pressured riser wall. A cylindrical core is provided as fixed or rotatable along the inner peripheral wall of the barrel and a proper number of blades are provided as inclined downward on the peripheral surface of the cylindrical core so that the flow of a mass may be forcibly moved downward to improve the grinding efficiency.
    Type: Grant
    Filed: September 29, 1978
    Date of Patent: June 3, 1980
    Assignee: Ietatsu Ohno
    Inventor: Mitsuo Nishiya