Lin Wen-hsiang of Sony recalls that when he was a graduate student at Tokyo Industrial University, research was taking place there into walking mechanisms, with the object of helping the physically disabled.
現在日本新力公司任職的林文祥指出，過去他在東京工業大學念研究所的時候，有老師及同學作步行機械的研究，目的是幫助殘障者行動更便利。