Patents by Inventor Masao Koida

Masao Koida 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).

  • Method and apparatus for fabricating coated optical fiber, and coated optical fiber
    Patent number: 6519404
    Abstract: In a fabrication method of coated optical fiber 21, the coated optical fiber 21 is fabricated by heating to soften an end of an optical fiber preform 11 to draw a glass fiber 13 out therefrom, laying coatings 16, 19 on the glass fiber 13 to make the coated optical fiber 21, and guiding the coated optical fiber 21 via a swing guide roller 23 periodically swinging, to twist the coated optical fiber 21, thereby imparting twists about the axis to the glass fiber 13 inside the coated optical fiber 21.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: February 11, 2003
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Motohide Yoshida, Katsuyuki Tsuneishi, Masao Koida, Katsuya Nagayama