Patents by Inventor Saburo Kawano

Saburo Kawano 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).

  • Molding machines using rotary screws
    Patent number: 4966540
    Abstract: In a molding machine, the front end of a rotary screw is provided with at least one slot communicated with a metering section so as to make uniform the temperature of plasticized resin in a space in front of the rotary screw.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: October 30, 1990
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Masaru Taguchi, Yasuhiro Kuroki, Yoshiharu Uchida, Saburo Kawano