Patents by Inventor Mitsuyoshi Okiyama

Mitsuyoshi Okiyama 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).

  • Method of and apparatus for incorporating torsion spring
    Patent number: 5926935
    Abstract: A torsion spring having a central coiled portion and a pair of resilient arms projecting from the coiled portion in different directions is incorporated in a workpiece so that the coiled portion is fitted on a support pin on the workpiece and the arms are engaged with first and second engagement portions on the workpiece. A center pin is inserted into the coiled portion of the torsion spring, and the coiled portion is held by attraction of an attracting portion provided around the center pin. A pair of forming pins are moved relative to the center pin in directions perpendicular to the longitudinal axis of the center pin to abut against the respective arms of the torsion spring and deflect them.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: July 27, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Mizuta, Mitsuyoshi Okiyama