About KUMAGAI N
About Japan Railways Group, Tokyo, TPN
About ISHIKAWA H
About Tobu Railway Co, Ltd, Saitama, JPN
About HAGA K
About Keio Teito Electric Railway Co., Tokyo, JPN
About KIGAWA T
About Japan Railways Group, Tokyo, TPN
About NAGASE K
About Kanazawa Inst. Technology, Ishikawa, JPN
About brake shoe
About rail brake
About Railway vehicle design
About 車輪
About 現象
About 要因