About IWASAKI SUSUMU
About OSAWA SHIGERU
About KAWAHARATA SATORU
About YAMAZAKI TAKASHI
About KOBAYASHI ATARU
About YOSHIIKE SHINJI
About MATSUI YASUO
About NEC通信システム
About YAMAMOTO TOORU
About NEC通信システム
About SUGAWARA HAJIME
About NEC通信システム
About ATM network
About Exchange and switching systems
About ATM
About 交換システム