Impedance Control of a Multi-D.O.F. Direct-Drive Manipulator. - Yasuyuki Inoue; Taisuke Sakaki; Toshio Matsumoto; Takanobu Iwakane (J. Robotics Mechatronics, 1990)

Ultra-Precision Linear Motor Positioning Technique. - Masanori Suematsu; Takao Fujii; Atsushi Kawahara; Tomoaki Tanimoto; Toshio Matsumoto; Hideaki Watanabe (J. Robotics Mechatronics, 1991)