Patents by Inventor Yutaka Kurosawa

Yutaka Kurosawa 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 containing ribbon fibers
    Patent number: 5531064
    Abstract: A loose tube optical fiber cable with SZ stranding in which the units receive two or more laminated multicase ribbons stranded toward a central member with the stranding direction reversed at specific intervals. These multicase ribbons are twisted in the same direction as the stranding of the tube units, and a reverse stranding angle of the tube units is selected to be a value within a specific scope.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: July 2, 1996
    Assignee: Fujikura Ltd.
    Inventors: Hiroyuki Sawano, Masayoshi Yamanaka, Yutaka Kurosawa, Matsuhiro Miyamoto