Force control of a spiral motor and its application to musculoskeletal biped robot. - Yasutaka Fujimoto; Tsubasa Suenaga; Yuuki Wakayama; Kengo Sawai; Ahmad Zaki Shukor (AMC, 2012)

Control of an Interior Permanent-Magnet Screw Motor With Power-Saving Axial-Gap Displacement Adjustment. - Yasutaka Fujimoto; Tsubasa Suenaga; Masato Koyama (IEEE Trans. Ind. Electron., 2014)