About HATAKEDA KENJI
About JR九州 直方車両セ
About 運転協会誌
About electric railcar
About manganate
About lithium compound
About secondary battery
About pantograph
About carrosserie
About private company
About railway transportation
About rolling stock apparatus
About traction motor
About bogie
About regenerative brake
About power converter
About motor control
About inverter
About running performance
About 蓄電池電車
About マンガン酸リチウム電池
About lithium manganate
About JR Kyusyu
About PWM converter
About VVVF control
About Powered vehicles
About 新型車両
About プロフィール
About 交流
About 架線
About 蓄電池
About 電車
About 開発