Patents by Inventor Fumihiko Kato

Fumihiko Kato 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).

  • Coated optical glass fibers and method for production thereof
    Patent number: 4396645
    Abstract: Coated optical glass fibers are described, wherein the coating composition comprises an unsaturated polyester containing at least one of (1) polyethylene glycol or polypropylene glycol having an average molecular weight of from 200 to 1,000 as a glycol component, (2) a long chain saturated aliphatic dibasic acid containing 12 or more carbon atoms as saturated polybasic acid component, and an acrylate or methacrylate, and (3) a long chain saturated aliphatic dibasic acid containing 6 or more carbon atoms as a saturated polybasic acid component and a long chain aliphatic dihydric alcohol containing 4 or more carbon atoms as a glycol component; and an acrylate or methacrylate.
    Type: Grant
    Filed: September 24, 1981
    Date of Patent: August 2, 1983
    Assignees: Nippon Telegraph and Telephone Public Corporation, Nitto Electric Industrial Co., Ltd.
    Inventors: Takao Kimura, Nobuo Inagaki, Mitsuo Yoshihara, Fumihiko Kato