Patents by Inventor Yasunari Tsuruta

Yasunari Tsuruta 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: 6226434
    Abstract: A closure for cable connection which is capable of preventing deformation thereof, facilitating incorporation and setting of a cable therein, exhibiting increased safety and airtightness, and attaining sleeve assembling and cable connection with improved workability. A sleeve is provided therein with a cable connection mechanism including a cable clamp, a tension member holder, and a fiber cable storage casing in which a fiber connection section of cable fibers and an excessive fiber are received. The sleeve is provided on upper and lower portions of an inner surface thereof with connection fitment mounting sections, on which a frame-like connection fitment for mounting the cable connection mechanism thereon is detachably fittedly fixed.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: May 1, 2001
    Assignees: Japan Recom Ltd., Fujikara Ltd.
    Inventors: Koji Koshiyama, Tadashi Hattori, Yasunari Tsuruta, Tetsuo Nozawa, Yasuhiro Tamaki, Hiroshi Yokosuka
  • Patent number: 5850499
    Abstract: A closure for cable connection capable of positively maintaining fastening between joint edges of a sleeve, exhibiting increased safety and airtightness, and substantially improving workability in assembling thereof. A sleeve is formed so as to be split into two parts in an axial direction thereof. The two parts of the sleeve are connected on one side thereof to each other by means of hinge sections and formed on the other side thereof with joint edges. One of the joint edges is mounted thereon with fasteners each provided with a holding hole and the other joint edge is provided with holding projections each releasably engaged with a corresponding one of the holding holes. Each fastener and the sleeve are provided with a holding hole and an additional holding projection for locking the fastener to the sleeve in a manner to be opposite to each other, respectively.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: December 15, 1998
    Assignees: Japan Recom Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Daijiro Sasaki, Kinji Mineshima, Yasunari Tsuruta, Tadashi Hattori, Yoshiyuki Yoshii, Mitsuo Kama, Tetsuya Hoshijima, Toshiyuki Ishikawa