Stability Analysis and Experimental Validation of a Motion-Copying System. - Yuki Yokokura; Seiichiro Katsura; Kiyoshi Ohishi (IEEE Trans. Ind. Electron., 2009)

Motion index/search system based on real-world haptics. - Yuki Yokokura; Seiichiro Katsura (AMC, 2010)

Low-noise and fine-efficiency motor drive for motion control. - Yuki Yokokura; Kiyoshi Ohishi; Seiichiro Katsura (AMC, 2012)

Force sensation improvement in bilateral control of different master-slave mechanism based on high-order disturbance observer. - Thao Tran Phuong; Manuel Nandayapa; Chowarit Mitsantisuk; Yuki Yokokura; Kiyoshi Ohishi (IECON, 2012)

Reproducibility analysis and experimental validation of motion-copying system. - Yuki Yokokura; Kiyoshi Ohishi (IECON, 2012)

Vibration suppression feedback control on angular transmission error of cycloid gear for industrial robot. - Shouta Kawahara; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (ICM, 2013)

Switching operation mode resonance ratio control for flexible robot system. - Chowarit Mitsantisuk; Kiyoshi Ohishi; Yuki Yokokura (ICM, 2013)

FPGA-based high performance bilateral control of different master-slave mechanism using highorder disturbance observer. - Thao Tran Phuong; Yuki Yokokura; Kiyoshi Ohishi; Chowarit Mitsantisuk (ICM, 2013)

FPGA-based broadband current control of a linear motor with Class-G power amplifiers. - Yuki Yokokura; Kiyoshi Ohishi (ICM, 2013)

Robust pressure control of electric injection molding machine using automatic parameter switching reaction force observer. - Kenji Iwazaki; Kiyoshi Ohishi; Yuki Yokokura; Koichi Kageyama; Masaru Takatsu; Shiro Urushihara (IECON, 2013)

Improvement of force sensing by harmonics suppression in a motion-copying system. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (IECON, 2013)

Reliable force-sensorless contact detection method for ball screw drive cartesian robot. - Naoki Shimada; Takashi Yoshioka; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (ISIE, 2013)

Fine mechanical impedance control using low-noise Class-G power amplifiers. - Yuki Yokokura; Kiyoshi Ohishi (ISIE, 2013)

Robust sensorless pressure control of electric injection molding machine using friction-free force observer. - Kenji Iwazaki; Kiyoshi Ohishi; Yuki Yokokura; Koichi Kageyama; Masaru Takatsu; Shiro Urushihara (AMC, 2014)

High-speed position control of SPMSM using rapid current profiling technique based on angular impulse. - Yoshiaki Seki; Kiyoshi Ohishi; Yuki Yokokura; Masataka Matsuhashi; Tomonori Mashimo (AMC, 2014)

Integrated design method of force and current control systems. - Yuki Yokokura; Kiyoshi Ohishi (AMC, 2014)

Link-coupled vibration suppression control considering product of inertia for industrial robots. - Takashi Yoshioka; Naoki Shimada; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (AMC, 2014)

Best fit sensorless force control system considering environmental stiffness variation. - Yuki Yokokura; Kiyoshi Ohishi (IECON, 2014)

Motion-copying system of a different master-slave mechanism with variable reproduction speed. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (ISIE, 2014)

FPGA-Based High-Performance Force Control System With Friction-Free and Noise-Free Force Observation. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura; Chowarit Mitsantisuk (IEEE Trans. Ind. Electron., 2014)

Fine Force Reproduction Based on Motion-Copying System Using Acceleration Observer. - Yuki Yokokura; Kiyoshi Ohishi; Seiichiro Katsura (IEEE Trans. Ind. Electron., 2014)

Quick and stable speed control of SPMSM based on current differential signal and extension of DC-link voltage utilization in flux-weakening region. - Yoshiaki Seki; Kiyoshi Ohishi; Yuki Yokokura (ICM, 2015)

Variable noise-covariance Kalman filter based instantaneous state observer for industrial robot. - Takashi Yoshioka; Thao Tran Phuong; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (ICM, 2015)

Reproduction of haptic sensations for high-stiffness environment considering mechanical admittance. - Yusuke Asai; Yuki Yokokura; Kiyoshi Ohishi (IECON, 2015)

Equivalence of resonance ratio and I-PD controllers in zero stiffness torque control for soft robot. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Kotaro Saito; Atsushi Shimamoto (IECON, 2015)

Quick torque ripple suppression controlled fast position servo based on hybrid system of disturbance observer and torque ripple table. - Yoshiaki Seki; Kiyoshi Ohishi; Yuki Yokokura; Yuji Ide; Daigo Kuraishi (IECON, 2015)

Stationary reference frame sensorless vector control based on primary flux linkage and sinusoidal complete tracking current controller for IPMSM. - Ryota Takahashi; Kiyoshi Ohishi; Hitoshi Haga; Yuki Yokokura (IECON, 2015)

Design method of stable force control system using new resonance ratio control and instantaneous state observer. - Akinori Yabuki; Takashi Yoshioka; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (IECON, 2015)

Superiority of admittance control system in mechanical impedance implementation of high-stiffness environment. - Yusuke Asai; Yuki Yokokura; Kiyoshi Ohishi (INDIN, 2015)

Verification of load-side acceleration control for a 2-inertia resonant system with a torsion torque sensor. - Yuki Yokokura; Kiyoshi Ohishi; Kotaro Saito; Atsushi Shimamoto; Yu Yamamoto (SII, 2015)

High back-drivable pseudo I-PD torque control using load-side torque observer with torsion torque sensor. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Kotaro Saito; Atsushi Shimamoto (AMC, 2016)

Design method of I-PD force control system based on instantaneous state observer for industrial robot. - Akinori Yabuki; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (AMC, 2016)

Harmonic current reduction control of IPMSM drive inverter without inductor or electrolytic capacitor. - Kodai Abe; Kiyoshi Ohishi; Hitoshi Haga; Yuki Yokokura (IECON, 2016)

Robust position control using double disturbance observers based state feedback for two mass system. - Thang Xuan Bo; Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura; Toshimasa Miyazaki (IECON, 2016)

High-robust acceleration control using force and position sensors integrated disturbance observer. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Pattawan Boonwong (IECON, 2016)

Fine force control without force sensor based on reaction force estimation system considering static friction and kinetic friction. - Hiroshi Nakamura; Kiyoshi Ohishi; Yuki Yokokura; Toshimasa Miyazaki; Akifumi Tsukamoto (IECON, 2016)

Force control including contact process using acceleration-sensor-based instantaneous state observer for high-stiffness gear drive. - Akinori Yabuki; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (ISIE, 2016)

Load-side acceleration control of a 2-inertia resonant system for fine torque servoing. - Yuki Yokokura; Kiyoshi Ohishi; Yusuke Kawai (ISIE, 2016)

Fine Force Reproduction of Environmental Haptic Sensations Based on Momentum Control. - Yusuke Asai; Yuki Yokokura; Kiyoshi Ohishi (IEEE Trans. Ind. Electron., 2016)

Single inertialization of a 2-inertia system based on fine torsional torque and sensor-based resonance ratio controllers. - Yuki Yokokura; Kiyoshi Ohishi (ICM, 2017)

Dual notch-type high-order frinction-free force observers for force sensorless fine force control. - Toshimasa Miyazaki; Naoki Kamiya; Hiroshi Nakamura; Yuki Yokokura; Kiyoshi Ohishi (IECON, 2017)

Kalman filter based fine force sensation with periodic component extraction. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (ISIE, 2017)

Fine vibration suppression control based on new two-inertia state observer feedback against three-inertia robot joint. - Akinori Yabuki; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (ISIE, 2017)

Fine Current Harmonics Reduction Method for Electrolytic Capacitor-Less and Inductor-Less Inverter Based on Motor Torque Control and Fast Voltage Feedforward Control for IPMSM. - Kodai Abe; Hitoshi Haga; Kiyoshi Ohishi; Yuki Yokokura (IEEE Trans. Ind. Electron., 2017)

Analysis of Estimation Performance of Load-side Torque and Load-side Velocity Observers for Human Interaction Control Based on Torsion Torque Control. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (AIM, 2018)

Sensor-less torque control considering contact phase for two-mass system. - Thang Xuan Bo; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura (AMC, 2018)

Current control system suppressing mechanical resonance using a voltage disturbance observer. - Junichi Itoh; Kiyoshi Ohishi; Yuki Yokokura; Toshimasa Miyazaki (AMC, 2018)

Force sensorless force control using notch-type friction free disturbance observer. - Naoki Kamiya; Kiyoshi Ohishi; Yuki Yokokura; Toshimasa Miyazaki (AMC, 2018)

Forward-back and back-forward drivable controls for human-robot interaction. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (AMC, 2018)

Storage and haptic rendering of multi-inertia environment using FDTD method. - Hirotaka Muto; Yuki Yokokura; Kiyoshi Ohishi (AMC, 2018)

Applications of disturbance observer and kalman filter based force sensation in motion control. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura; Yoshinori Takei (AMC, 2018)

Motor Current Regulation Based Direct DC-link Current Control of Wide Range Load Condition for IPMSM Drive System Without Passive Component. - Kodai Abe; Kiyoshi Ohishi; Hitoshi Haga; Yuki Yokokura (IECON, 2018)

MPDCC Based High Efficiency Harmonic Reduction Control for IPMSM Driven by Electrolytic Capacitorless Inverter. - Yushi Araki; Kiyoshi Ohishi; Yuki Yokokura; Kodai Abe (IECON, 2018)

Haptic Rendering for Time-Variant System Based on FDTD Method Considering Realtime Discretization. - Hirotaka Muto; Yuki Yokokura; Kiyoshi Ohishi (IECON, 2018)

Identification of Internal Impedance Parameters of Multi-Inertial Environment for Haptic Rendering. - Hirotaka Muto; Kiyoshi Ohishi; Yuki Yokokura (ISIE, 2018)

Direct DC-Link Current Control Considering Voltage Saturation for Realization of Sinusoidal Source Current Waveform Without Passive Components for IPMSM Drives. - Kodai Abe; Hitoshi Haga; Kiyoshi Ohishi; Yuki Yokokura (IEEE Trans. Ind. Electron., 2018)

High Speed Force Balance Control of Injection Molding Machine Using Equilibrium Point Movement. - Yuki Matsui; Kiyoshi Ohishi; Yuki Yokokura; Hiroshi Morita; Daigo Hotta (AIM, 2019)

Parameter Variation Insensitive Armature Temperature Estimation Method for SPMSM Servo System. - Hiroki Iwata; Kiyoshi Ohishi; Yuki Yokokura; Yuji Okada; Yuji Ide; Daigo Kuraishi; Akihiko Takahashi (ICIT, 2019)

Wideband Sensorless Force Control Based on Singular Spectrum Analysis and Dither Periodic Component Elimination Kalman Filter. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (ICIT, 2019)

Force Sensorless Force Control Using Notch-Type Dual Disturbance Observer. - Naoki Kamiya; Kiyoshi Ohishi; Yuki Yokokura; Toshimasa Miyazaki (ICM, 2019)

Stick-Slip Suppression in Geared Motor Using Speed-Variant Transient Components of High-Order Motor-Side Normalization Compensator. - Juan Padron; Kiyoshi Ohishi; Yuki Yokokura (ICM, 2019)

Suppression of Stick-Slip in an Oil-Seal-Mounted Geared Motor for Forward-Drivability Improvement. - Juan Padron; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (IECON, 2019)

Advanced Wideband Sensorless Force Control Based on Harmonic Estimation Integrated Singular Spectrum Analysis Based Disturbance Observer. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (IECON, 2019)

Wideband Load-Side Acceleration Control Based on Load-Side Acceleration Sensing of Two-Inertia System. - Shunsuke Suzuki; Yuki Yokokura; Yusuke Kawai; Kiyoshi Ohishi; Toshimasa Miyazaki (IECON, 2019)

Realization of Resonance Ratio Control Focusing on Duality of Torque and Velocity for Two-Inertia System with Environment. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (ISIE, 2019)

Switching Controller-less Approach and Contact Controls Based on Force Impulse Regulator. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (AIM, 2020)

Enhancement of Performance on Sensor-less Force Sensation Using Singular Spectrum Analysis Based Force Observers. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (AIM, 2020)

Soft Boom Cylinder Control Using Disturbance-Observer-Based Equivalent Hydraulic System for Electric Excavator. - Rintaro Nakano; Kiyoshi Ohishi; Yuki Yokokura (AMC, 2020)

Resonant Frequency Damping Disturbance Observer based Robot Servo System. - Akinori Yabuki; Toshiyuki Kanmachi; Kiyoshi Ohishi; Toshimasa Miyazaki; Yuki Yokokura; Itaru Ando (AMC, 2020)

Fine Torsion Torque Control for Geared Motors by a State-Reference-Dependent Variable-Order Friction Observer. - Juan Padron; Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (ISIE, 2020)

Fine Sensorless Force Control Realization Based on Dither Periodic Component Elimination Kalman Filter and Wide Band Disturbance Observer. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (IEEE Trans. Ind. Electron., 2020)

Fine Load-Side Acceleration Control Based on Torsion Torque Sensing of Two-Inertia System. - Yuki Yokokura; Kiyoshi Ohishi (IEEE Trans. Ind. Electron., 2020)

Analysis and Comparison of Back-Forward Drivability Control Using Load-side Sensors for Human-Robot Interaction. - Yusuke Kawai; Juan Padron; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (AMC, 2021)

Evaluating the Equivalence between Nonlinear Friction and Backlash in Two-Inertia Systems. - Juan Padron; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki; Yusuke Kawai (AMC, 2021)

Deep Learning Based Singular Spectrum Analysis for Realization of Wideband Force Sensing. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (ICM, 2021)

Wideband Backforward-Drivability Motor Drive Based on Fast Current Control of Geared SPMSM. - Yuki Yokokura; Kiyoshi Ohishi (ICM, 2021)

Equivalent Disturbance Compensator and Friction Compensation for Back-Forward Drivability Improvement. - Yusuke Kawai; Juan Padron; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (IECON, 2021)

Voltage Feedforward Compensation Method for Reduction of Acoustic Noise Caused by the 6th-and 12th-order Radial Electromagnetic Forces of IPMSM. - Toshiyuki Kanmachi; Akinori Yabuki; Kiyoshi Ohishi; Yuki Yokokura; Koji Kobayashi; Tatsuki Kashihara; Yushi Araki (ISIE, 2021)

Load-Side Reaction Force Control Based on Model-Matching Controller for Two-Inertia System with Environment. - Sora Nagao; Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (ISIE, 2021)

A Method for Gear Impact Suppression In Torsion Torque Control of Two-Inertia Systems with Backlash. - Juan Padron; Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (ISIE, 2021)

Deep Learning Based Kalman Filter for Variable-Frequency Disturbance Elimination in Force Sensing. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura (ISIE, 2021)

Load-side Acceleration Control Based on I-P Drive-side Velocity Control and Acceleration Sensor Feedback. - Taiga Shinozaki; Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (ISIE, 2021)

Smooth Acceleration Control of Hybrid-Vehicle Based on Constrained Model Predictive Control for Two-Inertia Systems with a Clutch. - Tomohiro Taki; Takanori Iwaki; Kiyoshi Ohishi; Yuki Yokokura; Akira Yamaguchi; Takashi Hatano (ISIE, 2021)

Quick Torsion Torque Control Based on Model Error Compensator and Disturbance Observer with Torsion Torque Sensor. - Yusuke Kawai; Sora Nagao; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (SII, 2021)

High-Robust Force Control for Environmental Stiffness Variation Based on Duality of Two-Inertia System. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki (IEEE Trans. Ind. Electron., 2021)

Load-Side Acceleration Control for Geared Motors with Unknown Backlash and Nonlinear Friction. - Juan Padron; Yuki Yokokura; Kiyoshi Ohishi; Toshimasa Miyazaki; Yusuke Kawai (IECON, 2022)

Integratorless 2DOF Torsion Torque Control for Geared Motors with Transmission Error. - Juan Padron; Toshimasa Miyazaki; Yuki Yokokura; Kiyoshi Ohishi (IECON, 2023)

Load-side acceleration control based on load-side velocity disturbance observer for geared actuator. - Yusuke Kawai; Yuki Yokokura; Kiyoshi Ohishi; Taiga Shinozaki (Adv. Robotics, 2023)

Workspace Bilateral Control Based on Load-Side Acceleration Control and Load-Side Observers for Two-Inertia Systems. - Satoshi Igarashi; Yuki Yokokura; Kiyoshi Ohishi (AMC, 2024)

Deep Learning Based Force-Sensor-Like Reaction Force Observer for Realization of Intelligent Force Sensing. - Thao Tran Phuong; Kiyoshi Ohishi; Yuki Yokokura; Toshimasa Miyazaki (AMC, 2024)

Low Switching Frequency Motor Drive Using All Switching Patterns Search based Direct Torque Control. - Haru Hayashi; Yuki Yokokura; Kiyoshi Ohishi; Yuto Kobayashi; Tenjiro Hiwatari; Akira Satake (IECON, 2024)

Fine Sinusoidal Voltage Modulation Inverter Driven AC Motor System Implementing Extremely Few Influences on Common-Mode Noise and Switching Loss. - Yuto Kobayashi; Yuki Yokokura; Kiyoshi Ohishi (IECON, 2024)

Individual axis control for industrial robots by posture-variant dynamic compensation and feedback control using the FDTD method. - Juan Padron; Kenta Tatsuda; Kiyoshi Ohishi; Yuki Yokokura; Toshimasa Miyazaki (Adv. Robotics, 2024)

A Torque-Sensor-Based Nonlinear Observer for Shockless Torque Control of Two-Inertia Systems with Backlash. - Juan Padron; Toshimasa Miyazaki; Yuki Yokokura; Kiyoshi Ohishi (ICM, 2025)

Instantaneous Voltage Regulation-based Sliding Mode Direct Torsion Torque Control for High-Backforward-Drivability Actuation. - Itsuki Shono; Yuki Yokokura; Kiyoshi Ohishi (ICM, 2025)

Special issue on force control and its related technology. - Sho Sakaino; Sehoon Oh; Emre Sariyildiz; Yuki Yokokura; Toshiaki Tsuji (Adv. Robotics, 2025)