Patents by Inventor Osamu Itamoto

Osamu Itamoto 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).

  • Plastic-clad silica (PCS) fibers and methods and apparatuses for producing the same
    Patent number: 5212762
    Abstract: A method and apparatus for producing a polymer-clad silica (PCS) optical fiber comprising a core of a transparent inorganic glass and a cladding of a transparent organic polymer characterized in that the amount of volatile components in its cladding is not more than 1 wt %, which method and apparatus comprise forming the core fiber, forming the cladding around the core fiber, and treating the cladding with a far infrared heater.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: May 18, 1993
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Katsuhiko Shimada, Tsuneo Takano, Osamu Itamoto, Michisuke Edamatsu, Yasuo Hiromoto