About KOSEKI TAKAFUMI
About 東大 大学院工学系研究科
About Subway
About linear motor
About underground railway
About induction motor
About urban traffic
About transit system
About standardization
About energy saving
About technical trend
About subway
About linear induction motor
About 都市軌道交通システム
About リニアメトロ
About international standardization
About energy saving technique
About Urban traffic
About リニア
About メトロ