Patents by Inventor Hiroshi Kokuryo

Hiroshi Kokuryo 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).

  • Rotary powder compression molding apparatus
    Patent number: 4793791
    Abstract: A rotary powder compression molding apparatus is disclosed, which includes a rotary disk. The rotary disk has a mortar mounting portion, an upper pestle guide portion arranged above the mortar mounting portion, and a lower pestle guide portion arranged below the mortar mounting portion. An annular vertical wall, extending upward, is arranged on the periphery of the lower pestle guide portion, and a recessed powder trap portion is formed inside the vertical wall. Powder leaking from mortars is moved outwardly due to a centrifugal force, and is trapped by the powder trap portion.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: December 27, 1988
    Assignee: Hata Iron Works, Ltd.
    Inventor: Hiroshi Kokuryo