Patents by Inventor Katsuyuki Seto

Katsuyuki Seto 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).

  • Optical fiber cable
    Patent number: 4804245
    Abstract: An optical fiber cable includes an elongated flexible body having at least two spiral grooves formed in a circumferential surface thereof and extending longitudinally of the body. An optical fiber is received in one of the spiral grooves while an elongated flexible tension member is received in the other spiral groove, the tension member being composed of at least one elongated element made of aramid fibers.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: February 14, 1989
    Assignee: Fujikura Ltd.
    Inventors: Hiroichi Katayose, Hiroshi Yokosuka, Katsuyuki Seto