Horse riding robot for health promotion and its control. - Shuoyu Wang; Koichi Kawata; Takeshi Tsuchiya; Kenji Ishida; Tetsuhiko Kimura; Ryoji Nakajima; Youichi Shinomiya (Adv. Robotics, 1998)

A Semi-Autonomous Security Robot Employing Telepresence. - Takashi Nishiyama; Junji Nomura; Ryoji Nakajima; Tetsuji Miyanoh (Commun. ACM, 1998)