Patents by Inventor Hidetoshi Takasugi

Hidetoshi Takasugi 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).

  • Optical connector apparatus
    Patent number: 5590227
    Abstract: Disclosed is an optical connector connecting apparatus. In the apparatus, a plurality of fixed optical connectors are mounted on a fixed member in a lined-up manner. An optical connector containing member having a movable optical connector mounted thereon is supported on a support member through a small-diameter beam. A moving plate mounted on a base supports the support member, and the movable optical connector is moved in X-axis, Y-axis and Z-axis directions so as to be connected to the fixed optical connector. Therefore, a position deviation at the time of the connection is corrected by the flexing of the small-diameter beam so that fine-positioning is unnecessary.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: December 31, 1996
    Assignees: Sumitomo Electric Industries, Ltd., Nippon Telegraph Telephone Corp., Sumiden Opcom Ltd.
    Inventors: Keiji Osaka, Takeo Komiya, Yasuo Asano, Tomomi Sano, Hidetoshi Takasugi, Kazuhiko Arimoto
  • Optical connector connecting apparatus and optical connector connecting method
    Patent number: 5418872
    Abstract: Disclosed is an optical connector connecting apparatus. In the apparatus, a plurality of fixed optical connectors are mounted on a fixed member in a lined-up manner. An optical connector containing member having a movable optical connector mounted thereon is supported on a support member through a small-diameter beam. A moving plate mounted on a base supports the support member, and the movable optical connector is moved in X-axis, Y-axis and Z-axis directions so as to be connected to the fixed optical connector. Therefore, a position deviation at the time of the connection is corrected by the flexing of the small-diameter beam so that fine-positioning is unnecessary.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: May 23, 1995
    Assignees: Sumitomo Electric Industries, Ltd., Nippon Telegraph & Telephone Corporation, Sumiden Opcom, Ltd.
    Inventors: Keiji Osaka, Takeo Komiya, Yasuo Asano, Hidetoshi Takasugi, Kazuhiko Arimoto
  • Device and a method for distinguishing faults employed in an optical transmission system
    Patent number: 5177354
    Abstract: The present invention discloses a fault distinguishing device for establishing whether fault exists in an optical fiber cable and in another optical system. The disclosed device is intermediate between the optical fiber cable and the another optical system and optically coupled with the optical fiber cable and the another optical system. The disclosed device is composed of at least one intrinsic optical fiber and at least one optical filter. The optical filter is internal to a corresponding intrinsic optical fiber, and forms an angle of between 0 and 4.7 degrees inclusive with respect to a plane perpendicular to the longitudinal axis of the intrinsic optical fiber, such that the optical fiber is cable of reflecting a first light component and of transmitting a second light component. The first light component and the second light component differ from one another in terms of wavelength.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: January 5, 1993
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Nobuo Tomita, Takashi Nakamura, Hidetoshi Takasugi, Hideki Suzuki