Patents by Inventor Shizuo Togashi

Shizuo Togashi 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 for improving the surface of plastic materials
    Patent number: 4247496
    Abstract: The present invention relates to a method for improving the surface of plastic materials, particularly plastic films. The new method comprises stretching the film at least in one direction during or after irradiation with the ultra-violet light.
    Type: Grant
    Filed: April 17, 1979
    Date of Patent: January 27, 1981
    Assignee: Toray Industries, Inc.
    Inventors: Ken-Ichi Kawakami, Shoji Saito, Shizuo Togashi