About ASAKURA KAORU
About NTT 環境エネルギー研
About TANAKA TOSHIMITSU
About NTT 環境エネルギー研
About BABASAKI TADATOSHI
About NTT 環境エネルギー研
About NTT技術ジャーナル
About high voltage
About power distribution
About standardization
About technology development
About power converter
About electric work
About data center
About energy saving
About DC electric supply
About Power distribution(under-taker side)
About グリーン
About 社会
About 環境
About エネルギー
About 高電圧直流
About 給電システム