Patents by Inventor Kimiyuki Tominaga

Kimiyuki Tominaga 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 for fusion splicing optical fibers
    Patent number: 6835005
    Abstract: In a method for fusing splicing optical fibers having different diameters of fiber coating portions, the fiber coating portions of optical fibers to be spliced are clamped on V-groove boards and end faces of the optical fibers are aligned. Then, the end faces of the optical fibers are fused spliced by a discharged heating. An inclination angle &thgr;g of glass fibers of the fusion spliced optical fibers is measured from an observed image of a fusion splicing portion after fusion splicing the optical fibers to estimate a splice loss of the optical fibers.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: December 28, 2004
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Mikio Kobayashi, Hiroshi Ohzeki, Kimiyuki Tominaga, Hidemitsu Hisata
  • Method for fusion splicing optical fibers
    Publication number: 20040013373
    Abstract: In a method for fusing splicing optical fibers having different diameters of fiber coating portions, the fiber coating portions of optical fibers to be spliced are clamped on V-groove boards and end faces of the optical fibers are aligned. Then, the end faces of the optical fibers are fused spliced by a discharged heating. An inclination angle &thgr;g of glass fibers of the fusion spliced optical fibers is measured from an observed image of a fusion splicing portion after fusion splicing the optical fibers to estimate a splice loss of the optical fibers.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 22, 2004
    Applicants: Sumitomo Electric Industries, Ltd., OCC Corporation
    Inventors: Mikio Kobayashi, Hiroshi Ohzeki, Kimiyuki Tominaga, Hidemitsu Hisata