Patents by Inventor Kazumichi Miyabe

Kazumichi Miyabe 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).

  • Patent number: 5764833
    Abstract: An optical fiber array according to the present invention comprises an optical coupling end face to be optically coupled to another optical line, and one ends of a plurality of optical fibers are arrayed in the optical coupling end face. The optical fiber array comprises a lower plate (3a) comprising a plurality of V-shaped grooves (4) for positioning the optical fibers exposing from one end of a ribbon part of the optical fibers, and an upper plate (3b) for pressing each optical fiber provided in each V-shaped groove (4) of the lower plate into the positioning groove. A boundary portion between the ribbon part (7) and the optical fibers (1) is fixed between the first and second plates (3a, 3b) by heat resistant adhesive (10), and the optical fibers from the boundary portion to a front end are fixed by solder (6) in an airtightness state. Accordingly, the hermetic sealing with sufficiently high airtightness can be achieved.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: June 9, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshiaki Kakii, Hidetoshi Ishida, Shinji Ogawa, Kazumichi Miyabe
  • Patent number: 5719978
    Abstract: An optical fiber array according to the present invention includes an optical coupling end face to be optically coupled to another optical line, and first ends of a plurality of optical fibers are arrayed in the optical coupling end face. The optical fiber array includes a lower plate (3a) having a plurality of V-shaped grooves (4) for positioning the optical fibers exposed from one end of a ribbon part of the optical fibers, and an upper plate (3b) for pressing each optical fiber provided in each V-shaped groove (4) of the lower plate into the positioning groove. A boundary portion between the ribbon part (7) and the optical fibers (1) is fixed between the first and second plates (3a, 3b) by heat resistant adhesive (10), and the optical fibers from the boundary portion to a front end of the array are fixed by solder (6) to achieve hermetic sealing.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: February 17, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshiaki Kakii, Hidetoshi Ishida, Shinji Ogawa, Kazumichi Miyabe
  • Patent number: 5548677
    Abstract: A housing structure for coupling and releasing optical modules comprises three housing. A first housing including a distal wall at one end, an opening at the other end, and the opening having a first protrusion part protruding toward inside of the opening. A second housing for receiving and holding an optical module provided in the first housing so as to be slidable. The second housing includes a second protrusion part for engaging with the first protrusion part and the sliding of the second housing being limited by the distal wall of the first housing and the first protrusion part. A third housing for holding an another optical module including holding parts for selectively holding the second housing and a contact part provided at one end of the third housing for touching the second housing. The second housing also includes engaging means for engaging the holding parts of the third housing.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: August 20, 1996
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshiaki Kakii, Hidetoshi Ishida, Shinji Ogawa, Kazumichi Miyabe
  • Patent number: 5416868
    Abstract: An optical connector for connecting optical fibers, comprises: a guide-groove substrate having grooves for positioning optical fibers and guide pins; an upper plate having groove portions each for covering the guide pins positioned in the guide grooves of the guide-groove substrate; elastic guide-pin pressing members each provided in the groove portions of the upper plate above portions where the guide pin grooves are in contact with the guide pins. In such a arrangement, it is preferable to forman oxide film on said V-grooves of the guide-groove substrate at least in the vicinity of contact points between the guide pins and the V-grooves. The optical connector further includes a resin molding portion for surrounding the substrate and the upper plate, the resin molding portion including a pair of opposite opened portions at top and bottom surfaces thereof.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: May 16, 1995
    Assignees: Sumitomo Electric Industries, Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Toshiaki Kakii, Makoto Honjo, Hidetoshi Ishida, Hiroshi Katsura, Toru Yamanishi, Kazumichi Miyabe, Tadashi Haibara, Michito Matsumoto
  • Patent number: 5351328
    Abstract: An optical connector for connecting optical fibers, comprises: a guide-groove substrate having grooves for positioning optical fibers and guide pins; an upper plate having groove portions each for covering the guide pins positioned in the guide grooves of the guide-groove substrate; elastic guide-pin pressing members each provided in the groove portions of the upper plate above portions where the guide pin grooves are in contact with the guide pins. In such a arrangement, it is preferable to form an oxide film on said V-grooves of the guide-groove substrate at least in the vicinity of contact points between the guide pins and the V-grooves. The optical connector further includes a resin molding portion for surrounding the substrate and the upper plate, the resin molding portion including a pair of opposite opened portions at a front and back surfaces thereof.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: September 27, 1994
    Assignees: Sumitomo Electric Industries, Ltd., Nippon Telegraph & Telephone Corporation
    Inventors: Toshiaki Kakii, Makoto Honjo, Hidetoshi Ishida, Hiroshi Katsura, Toru Yamanishi, Kazumichi Miyabe, Yoshikyo Tamekuni, Shinji Nagasawa
  • Patent number: 5339376
    Abstract: An optical connector for connecting optical fibers, comprises: a guide-groove substrate having grooves for positioning optical fibers and guide pins; an upper plate having groove portions each for covering the guide pins positioned in the guide grooves of the guide-groove substrate; elastic guide-pin pressing members each provided in the groove portions of the upper plate above portions where the guide pin grooves are in contact with the guide pins. In such a arrangement, it is preferable to form an oxide film on said V-grooves of the guide-groove substrate at least in the vicinity of contact points between the guide pins and the V-grooves. The optical connector further includes a resin molding portion for surrounding the substrate and the upper plate, the resin molding portion including a pair of opposite opened portions at a front and back surfaces thereof.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: August 16, 1994
    Assignees: Sumitomo Electric Industries, Ltd., Nippon Telegraph and Telephone Corp.
    Inventors: Toshiaki Kakii, Makoto Honjo, Hidetoshi Ishida, Hiroshi Katsura, Toru Yamanishi, Kazumichi Miyabe, Tadashi Haibara, Michito Matsumoto