High- Speed Digital Controller for Magnetic Servo Levitation of Robot Mechanisms. - Masahiro Tsuda; Yoshihiko Nakamura; Toshiro Higuchi (ISER, 1989)

Development of a magnetically supported intelligent hand for automated precision assembly. - Toshiro Higuchi; Masahiro Tsuda; Shigeki Fujiwara (Adv. Robotics, 1990)