Realization of bilateral control by compact solenoid actuators without position and force sensors. - Sakahisa Nagai; Atsuo Kawamura (AMC, 2016)

Environmental Robust Position Control for Compact Solenoid Actuators by Sensorless Simultaneous Estimation of Position and Force. - Sakahisa Nagai; Takahiro Nozaki; Atsuo Kawamura (IEEE Trans. Ind. Electron., 2016)

Fast force control using acceleration-aided Kalman filter and reaction force observer for probing systems. - Sakahisa Nagai; Roberto Oboe; Tomoyuki Shimono; Atsuo Kawamura (IECON, 2017)

Basic study on 1D array actuator using solenoid actuators for 2D haptic display realization. - Sakahisa Nagai; Sota Ogura; Akihiro Shimazu; Atsuo Kawamura (AMC, 2018)

Sensorless Position Estimation with Thermal Compensation for Compact Dual Solenoid Actuator. - Sakahisa Nagai; Atsuo Kawamura (IECON, 2018)

Sensorless Position Control for Compact Dual Solenoid Actuator Using Disturbance Observer. - Sakahisa Nagai; Atsuo Kawamura (ICM, 2019)

Position/Force Sensorless Force Control Using Reaction Force Observer for Compact Dual Solenoid Actuator. - Sakahisa Nagai; Atsuo Kawamura (IECON, 2019)

Development of Compact Linear Actuator Combining DC motor and Cylindrical Cam for Tactile Display. - Sakahisa Nagai; Atsuo Kawamura (AMC, 2020)

Wind vector estimation considering difference of propeller model characteristics for fully actuated drone. - Manto Kamiya; Sakahisa Nagai; Hiroshi Fujimoto (AIM, 2023)

Test Bench Study on Attitude Estimation in Ground Effect Region Based on Motor Current for In-Flight Inductive Power Transfer of Drones. - Kota Fujimoto; Sakahisa Nagai; Nguyen Binh Minh; Hiroshi Fujimoto (IECON, 2023)

Learning-Based Distributed Approach to Energy-Optimized Speed Trajectory for Electric Vehicles at Multiple Signalized Intersections. - Yuki Hosomi; Binh-Minh Nguyen; Sakahisa Nagai; Hiroshi Fujimoto (IECON, 2023)

Multirate Attitude Control of Dual-Rotor System Considering Propeller Loss of Effectiveness. - Binh-Minh Nguyen; Sakahisa Nagai; Hiroshi Fujimoto (IECON, 2023)

Basic Study on Received Power Control of In-Flight Inductive Power Transfer for Drones by Active Rectifier Switching and Altitude Regulation. - Yusuke Satoh; Kota Fujimoto; Ryo Matsumoto; Nguyen Binh Minh; Sakahisa Nagai; Hiroshi Fujimoto (IECON, 2023)

Thrust Force Vibration Suppression of Drone Rotor by Higher Harmonic Rotational Speed Control. - Yuto Naoki; Sakahisa Nagai; Hiroshi Fujimoto (AIM, 2024)

Basic Study on Vortex Ring State Detection of Multi-rotor UAV Using Motor Counter Torque Observer. - Manto Kamiya; Sakahisa Nagai; Hiroshi Fujimoto (IECON, 2024)

Two-pulse Width Modulation for Voltage Regulation and Reduction of Electromagnetic Field Radiated by Third Harmonic Current in Wireless Power Transfer System. - Sakahisa Nagai; Toshiyuki Fujita; Osamu Shimizu; Hiroshi Fujimoto (IECON, 2024)

Effect of the Conduction Resistance of SiC MOSFET on the Harmonics of Inverter Voltage in Wireless Power-Transfer Systems for Electric Vehicles. - Tatsuya Yanagi; Ken Nakahara; Hayato Sumiya; Sakahisa Nagai; Osamu Shimizu; Hiroshi Fujimoto (IEEE Access, 2024)

Basic Study on Short Distance Landing Control with Reverse Thrust of Variable Pitch Propeller for Fixed Wing Electric Aircraft. - Pinzhe Feng; Yuto Naoki; Kota Fujimoto; Kentaro Yokota; Sakahisa Nagai; Hiroshi Fujimoto (ICM, 2025)

Trajectory Tracking Control of Tilt-Wing eVTOL Using Aerodynamic Coupling Observer and Wing Angle Correction Method. - Takuma Katagiri; Kota Fujimoto; Sakahisa Nagai; Hiroshi Fujimoto (ICM, 2025)

Optimizing the Number of Parallel SiC MOSFET Chips in a Wireless Power Transfer Inverter With Pulse Width Control. - Tatsuya Yanagi; Ken Nakahara; Sakahisa Nagai; Osamu Shimizu; Hiroshi Fujimoto (IEEE Trans. Ind. Electron., 2025)