About SASAKURA KUNIHIKO
About NTT 通信エネルギー研
About TANAKA NOBUHIDE
About NTT 通信エネルギー研
About KANEKO KAZUMASA
About NTT 通信エネルギー研
About 電子情報通信学会大会講演論文集
About service communication
About FTTD
About Optical communication systems and equipment
About Interior power distribution,power source equipment
About Other optical transmission devices
About 光接続
About 開発