Patents by Inventor Tadamichi Hosoya

Tadamichi Hosoya 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).

  • Perforating-printing device for making and using thermal stencils
    Patent number: 4184428
    Abstract: A device which may be operated in a mode of thermally perforating thermal stencils, and another mode of producing printed copies by employing the perforated thermal stencils, wherein the thermal stencils are provided as a particular type of framed assembly for employing a relatively viscous printing ink, the device having a base plate, a cushion plate, and a press plate pivotally mounted to the base plate and having an aperture covered with a transparent rigid plate and a light source unit mounted at the aperture for emitting flash light to the aperture.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: January 22, 1980
    Assignee: Riso Kagaku Corporation
    Inventor: Tadamichi Hosoya