Nippon Telegraph and Telephone Corporation

Fujikura Limited

Kyoei High Opt Co., Ltd.

Kazuya Ogata

Norihiro Momotsu

Masahiro Shibata

Atsuya Takahashi

Shigenori Uruno

Katsuaki Suzuki

Arata Natsume

Hidenori Fukumoto

This optical connector holder includes a holder body into which optical connectors are inserted, connector housing recesses are formed on the holder body and caps which fit together with said optical ferrules of said optical connectors that are inserted into said connector housing recess and which cover their connection end faces, wherein said caps separate from said optical ferrules and remain on said holder body side when said optical connectors are withdrawn from said connector housing recesses.

Optical connector holder and optical termination cabinet, and method of optical fiber wiring in optical termination cabinet

A holding member includes a flared tubular body and collectively holds a plurality of unused optical fibers provided with optical connectors within an optical distribution frame. The tubular body has a rectangular cross section and includes an elongated rectangular lower opening and an upper opening wider than the lower opening. A part of sidewalls of the tubular body is formed to serve as an openable cover. The cover is first opened; the optical fibers provided with the optical connectors are accommodated in the tubular body; and then the cover is closed.

Holding member for optical distribution frame and optical distribution frame

A method and apparatus including an easily installed spiral support useful laying a cable. The spiral support is composed of a counterclockwise spiral portion and a clockwise spiral portion, both of which are connected to each other with a reverse portion therebetween. The spiral support is installed on a messenger wire in such a way that the reverse portion is fitted on the messenger wire; the spiral support is rotated counterclockwise or clockwise; and these steps are repeated.

Spiral support, installation method of the same, and cable laying method using the spiral support

Growing community of inventors

Sakura, Japan

Kazuya Ogata