Cogging Torque Analysis of Magnetic Gear. - Noboru Niguchi; Katsuhiro Hirata (IEEE Trans. Ind. Electron., 2012)

Feedback control of outer rotor spherical actuator using adaptive neuro-fuzzy inference system. - Junghyun Chu; Noboru Niguchi; Katsuhiro Hirata (ICST, 2013)

Characteristics Verification of an Independently Controllable Electromagnetic Spherical Motor. - Shuhei Maeda; Katsuhiro Hirata; Noboru Niguchi (Sensors, 2014)

A New Linear Oscillatory Actuator with Variable Characteristics Using Two Sets of Coils. - Fumiya Kitayama; Katsuhiro Hirata; Noboru Niguchi; Masashi Kobayashi (Sensors, 2016)

Analytical Calculation of Air Gap Magnetic Flux Density Distribution in Magnetic Geared Motor. - Hyoseok Shi; Noboru Niguchi; Katsuhiro Hirata (TENCON, 2018)

Proposal of a Magnetic Screw Motor Utilizing a Modulated Magnetic Flux. - Kazuaki Takahara; Katsuhiro Hirata; Noboru Niguchi (ISIE, 2019)