Patents by Inventor Hiromu Fujisaki

Hiromu Fujisaki 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 and apparatus for production of foamed thermoplastic material
    Patent number: 4746478
    Abstract: A method and apparatus for the production of a foamed thermoplastic material. A cavity transfer mixer is provided between a screw extruder which melts, or fuses, the thermoplastic material, and a cooler. The cavity transfer mixer enables the formation of uniform and well mixed admixtures of a foaming agent and a thermoplastic material and, optionally, other desired additives.
    Type: Grant
    Filed: July 23, 1986
    Date of Patent: May 24, 1988
    Assignee: Sekisui Kaseihin Kogyo Kabushiki Kaisha
    Inventors: Hiromu Fujisaki, Motoshige Hayashi, Motokazu Yoshii