About KATSURASHIMA WATARU
About 住友電気工業
About SAKABE ITARU
About 住友電気工業
About OTA JUN'ICHI
About 住友電気工業
About SANO HIROAKI
About 住友電気工業
About MORIKAWA GEN
About 住友電気工業
About TOMINAGA MAKOTO
About 日本通信電材
About 電子情報通信学会大会講演論文集
About optical fiber cable
About Electric wires and cables
About Optical waveguide,optical fibers,and fiber optics
About クロージャ
About 開発
About 実証