Sumitomo Electric Industries, Limited

Nippon Telegraph and Telephone Corporation

Tohru Yamanishi

Masayuki Nishimura

Kazuhito Saito

Hideo Kobayashi

Masao Tachikura

Toshiaki Katagiri

There is disclosed a transmission line switching apparatus comprising a coupling board having a first surface adapted to be connected a first line and a second surface adapted to be connected a second line, adjusting means having a line length adjusting unit for handling surplus portions of the second lines and switching means for changing the connection between the first and second lines, and partition means for dividing the second surface of the coupling board into a plural rows.

Transmission line switching apparatus

There is disclosed an optical fiber switching device having a coupling board comprising a plurality of first optical fibers connected to one surface of the coupling board in the arrangement to one surface of the coupling board, a plurality of second optical fibers connected to the another surface of the coupling board, an optical fiber length adjusting unit for handling surplus portions of the second optical fibers and switching unit for pulling out any one of the second optical fibers selected from the plural second optical fibers from the another surface of the connecting board and for connecting the any one optical fiber to different switching position of the another surface of the connecting board to coupling the any one optical fiber with any one of the first optical fibers.

Optical fiber switching device having one of a robot mechanism and an

Optical fiber switching device and method

Optical fiber switching device having an optical fiber length adjustment

Growing community of inventors

Yokohama, Japan

Tohru Yamanishi