Patents by Inventor Naomichi Suzuji

Naomichi Suzuji 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 of fusion-splicing polarization maintaining optical fibers
    Patent number: 5013345
    Abstract: Fusion-splicing polarization maintaining optical fibers includes the steps of: observing a polarization maintaining optical fiber containing stress applying members in a predetermined direction, using a core direct monitoring method to obtain a reference image; aligning the pair of polarization maintaining optical fibers to be fusion-spliced; automatically rotating the fibers while observing them with the core direct monitoring method until the images of the pair coincide with the reference image; and fusion splicing the pair together.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: May 7, 1991
    Assignee: Fujikura Ltd.
    Inventors: Kenichiroh Itoh, Nikio Yoshinuma, Naomichi Suzuji, Takeshi Yamada, Hiroyuki Taya