About SHIMIZU SHIGEO
About 古河電気工業
About SAITO AKIHIRO
About 古河電気工業
About TAKASAKA HIDEYO
About 古河電気工業
About MATSUURA TOSHIKAZU
About 古河電気工業
About SAKUMA JUN'ICHI
About 古河電気工業
About 電子情報通信学会大会講演論文集
About optical fiber cable
About Optical communication systems and equipment
About Electric wires and cables
About 軽量
About 細径
About 光ケーブル