Patents by Inventor Shigezi Sato

Shigezi Sato 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).

  • Colored polyethylene molding compositions
    Patent number: 4107133
    Abstract: A coloring composition for polyethylene which comprises organic pigment and at least one organometal compound selected from the group consisting of organosilane compounds and organotitanium compounds.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: August 15, 1978
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Hideo Sawai, Satoshi Hirabayashi, Shigezi Sato