Patents by Inventor Keiji Ohas{acute over (h)}i

Keiji Ohas{acute over (h)}i 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).

  • Resin coated optical fiber
    Patent number: 6760528
    Abstract: A thermoplastic resin coated optical fiber having an outer diameter of 0.9 mm is formed by providing a coating layer around a reinforcing resin coated optical fiber having an outer diameter of 0.25 mm, and has a flexural rigidity of 5.5 to 7.5 N·mm2. The coating layer comprises a thermoplastic resin having a bending elastic modulus of 200 to 350 MPa and the thermoplastic resin is a polyester elastomer. When optical fiber cords are connected to each other or when an optical fiber is exposed to low temperatures, loss is prevented from increasing and superior transmission characteristics are exhibited.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: July 6, 2004
    Assignee: Fujikura Ltd.
    Inventors: Tsuyoshi Simomichi, Keiji Ohas{acute over (h)}i