Sensorless Force Control for Injection Molding Machine Using Reaction Torque Observer Considering Torsion Phenomenon. - Yuzuru Ohba; Masaki Sazawa; Kiyoshi Ohishi; Tetsuya Asai; Katsuyuki Majima; Yukio Yoshizawa; Koichi Kageyama (IEEE Trans. Ind. Electron., 2009)

Self-tuning control of both current sensor offset and electrical parameter variations for PM motor. - Yutaro Uenaka; Masaki Sazawa; Kiyoshi Ohishi (AMC, 2010)