About MORITAKA HIROKATSU
About JR九州
About MATSUMOTO TAKASHI
About JR九州
About YAZAWA EIJI
About JR九州
About private company
About super express
About measuring instrument
About displacement(transfer)
About displacement measurement
About swinging
About acceleration(ratio)
About technology development
About rolling stock
About rolling stock apparatus
About ride comfort
About JR Kyusyu
About Kyusyu Shinkansen
About vibration acceleration
About Railway noise and vibration
About Railway vehicle equipment
About 軌道管理
About 乗り心地
About JR九州
About 九州新幹線
About 営業
About 総合
About 軌道検測