Haptic Display Device with Fingertip Presser for Motion/Force Teaching to Human. - Ryo Kikuuwe; Tsuneo Yoshikawa (ICRA, 2001)

Robot Perception of Environment Impedance. - Ryo Kikuuwe; Tsuneo Yoshikawa (ICRA, 2002)

Recognizing surface properties using impedance perception. - Ryo Kikuuwe; Tsuneo Yoshikawa (ICRA, 2003)

Recognizing cylindrical surface using impedance perception. - Ryo Kikuuwe; Tsuneo Yoshikawa (IROS, 2003)

Haptic Illusions Induced by Moving Line Stimuli. - Hiromi Mochiyama; Akihito Sano; Naoyuki Takesue; Ryo Kikuuwe; Kei Fujita; Shinji Fukuda; Ken'ichi Marui; Hideo Fujimoto (WHC, 2005)

Fixed-step friction simulation: from classical Coulomb model to modern continuous models. - Ryo Kikuuwe; Naoyuki Takesue; Akihito Sano; Hiromi Mochiyama; Hideo Fujimoto (IROS, 2005)

Tracking assist system using virtual friction field. - Naoyuki Takesue; Ryo Kikuuwe; Akihito Sano; Hiromi Mochiyama; Hideo Fujimoto (IROS, 2005)

Robot perception of impedance. - Ryo Kikuuwe; Tsuneo Yoshikawa (J. Field Robotics, 2005)

Recognizing object surface properties using impedance perception. - Ryo Kikuuwe; Tsuneo Yoshikawa (Robotica, 2005)

Enhancing haptic detection of surface undulation. - Ryo Kikuuwe; Akihito Sano; Hiromi Mochiyama; Naoyuki Takesue; Hideo Fujimoto (ACM Trans. Appl. Percept., 2005)

Low-Force Kinesthetic Guidance for Accurate Positioning and Tracking. - Ryo Kikuuwe; Takahiro Yamamoto; Hideo Fujimoto (HAPTICS, 2006)

Proxy-based Sliding Mode Control for Accurate and Safe Position Control. - Ryo Kikuuwe; Hideo Fujimoto (ICRA, 2006)

Velocity-Bounding Stiff Position Controller. - Ryo Kikuuwe; Takahiro Yamamoto; Hideo Fujimoto (IROS, 2006)

Admittance and Impedance Representations of Friction Based on Implicit Euler Integration. - Ryo Kikuuwe; Naoyuki Takesue; Akihito Sano; Hiromi Mochiyama; Hideo Fujimoto (IEEE Trans. Robotics, 2006)

Incorporating Geometric Algorithms in Impedance- and Admittance-Type Haptic Rendering. - Ryo Kikuuwe; Hideo Fujimoto (WHC, 2007)

Passive Virtual Fixtures Based on Simulated Position-Dependent Anisotropic Plasticity. - Ryo Kikuuwe; Naoyuki Takesue; Hideo Fujimoto (ICRA, 2007)

A modular software architecture for simulating mechanical systems involving Coulomb friction integrable by the Runge-Kutta method. - Ryo Kikuuwe; Motoji Yamamoto (IROS, 2008)

A Control Framework to Generate Nonenergy-Storing Virtual Fixtures: Use of Simulated Plasticity. - Ryo Kikuuwe; Naoyuki Takesue; Hideo Fujimoto (IEEE Trans. Robotics, 2008)

A Guideline for Low-Force Robotic Guidance for Enhancing Human Performance of Positioning and Trajectory Tracking: It Should Be Stiff and Appropriately Slow. - Ryo Kikuuwe; Takahiro Yamamoto; Hideo Fujimoto (IEEE Trans. Syst. Man Cybern. Part A, 2008)

"Future Dream!" Review of The 2007 Robotics-Mechatronics Design Competition. - Taisuke Sakaki; Ryuichi Oguro; Shinichi Sagara; Kanta Aoki; Nobuhiro Ushimi; Takanori Kiyota; Ryo Kikuuwe; Makoto Iwamura; Manabu Fukushima; Keiji Imado; Hidetaka Ikeuchi; Shunji Moromugi (J. Robotics Mechatronics, 2009)

An edge-based computationally efficient formulation of Saint Venant-Kirchhoff tetrahedral finite elements. - Ryo Kikuuwe; Hiroaki Tabuchi; Motoji Yamamoto (ACM Trans. Graph., 2009)

Semiglobally strictly passive two-port network representation of rigid link manipulator under PID trajectory-tracking control. - Ryo Kikuuwe (CDC, 2010)

Proxy-Based Sliding Mode Control: A Safer Extension of PID Position Control. - Ryo Kikuuwe; S. Yasukouchi; Hideo Fujimoto; Motoji Yamamoto (IEEE Trans. Robotics, 2010)

Discrete-time velocity estimator based on sliding mode and adaptive windowing. - Shanhai Jin; Ryo Kikuuwe; Motoji Yamamoto (SII, 2012)

A Differential-Algebraic Multistate Friction Model. - Xiaogang Xiong; Ryo Kikuuwe; Motoji Yamamoto (SIMPAR, 2012)

Real-Time Quadratic Sliding Mode Filter for Removing Noise. - Shanhai Jin; Ryo Kikuuwe; Motoji Yamamoto (Adv. Robotics, 2012)

Finger-Mounted Tactile Sensor for Evaluating Surfaces. - Ryo Kikuuwe; Kenta Nakamura; Motoji Yamamoto (J. Robotics Mechatronics, 2012)

A Differential Algebraic Method to Approximate Nonsmooth Mechanical Systems by Ordinary Differential Equations. - Xiaogang Xiong; Ryo Kikuuwe; Motoji Yamamoto (J. Appl. Math., 2013)

Alternative proofs of four stability properties of rigid-link manipulators under PID position control. - Ryo Kikuuwe (Robotica, 2013)

A new noise-reduction filter with sliding mode and low-pass filtering. - Myo Thant Sin Aung; Zhan Shi; Ryo Kikuuwe (CCA, 2014)

Improving velocity feedback for position control by using a discrete-time sliding mode filtering with adaptive windowing. - Shanhai Jin; Ryo Kikuuwe; Motoji Yamamoto (Adv. Robotics, 2014)

Acceleration feedback and friction compensation for improving positioning performance in systems with friction. - Myo Thant Sin Aung; Ryo Kikuuwe (ACC, 2015)

Acceleration feedback and friction compensation for improving the stability of admittance control. - Myo Thant Sin Aung; Ryo Kikuuwe (ASCC, 2015)

An identification procedure for rate-dependent friction laws of robotic manipulator with limited motion range. - Masayoshi Iwatani; Ryo Kikuuwe (ASCC, 2015)

Implicit Euler simulation of one-dimensional Burridge-Knopoff model of earthquakes with set-valued friction laws. - Xiaogang Xiong; Ryo Kikuuwe; Motoji Yamamoto (Adv. Comput. Math., 2015)

Phase-Lead Stabilization of Force-Projecting Master-Slave Systems With a New Sliding Mode Filter. - Ryo Kikuuwe; Katsuya Kanaoka; Tomohiro Kumon; Motoji Yamamoto (IEEE Trans. Control. Syst. Technol., 2015)

An external force estimator using elastoplastic friction model with improved static friction behavior. - Masayoshi Iwatani; Ryo Kikuuwe (ICARCV, 2016)

Fast forward dynamics simulation of robot manipulators with highly frictional gears. - Naoki Wakisaka; Ryo Kikuuwe; Tomomichi Sugihara (ICRA, 2016)

An elastoplastic friction force estimator and its application to external force estimation and force-sensorless admittance control. - Masayoshi Iwatani; Ryo Kikuuwe (SII, 2016)

Stable simulation of flexible cable-like objects by using serial kinematic chains with high number of passive degrees-of-freedom. - Rafael Cisneros 001; Ryo Kikuuwe; Shinichiro Nakaoka; Fumio Kanehiro (SIMPAR, 2016)

Adaptive gain parabolic sliding mode filter augmented with vibration observer. - Soe Lin Paing; Myo Thant Sin Aung; Ryo Kikuuwe (CCTA, 2017)

A time-integration method for stable simulation of extremely deformable hyperelastic objects. - Ryo Kikuuwe (Vis. Comput., 2017)

Anti-Noise and Anti-Disturbance Properties of Differential-Algebraic Relaxation Applied to a Set-Valued Controller. - Ryo Kikuuwe (VSS, 2018)

Some stability proofs on proxy-based sliding mode control. - Ryo Kikuuwe (IMA J. Math. Control. Inf., 2018)

Torque-Bounded Admittance Control Realized by a Set-Valued Algebraic Feedback. - Ryo Kikuuwe (IEEE Trans. Robotics, 2019)

Reliable chattering-free simulation of friction torque in joints presenting high stiction. - Rafael Cisneros 001; Mehdi Benallegue; Ryo Kikuuwe; Mitsuharu Morisawa; Fumio Kanehiro (IROS, 2020)

Master-Slave Bipedal Walking and Semi-Automatic Standing Up of Humanoid Robots. - Tomoya Ando; Tomofumi Watari; Ryo Kikuuwe (SII, 2020)

A Stable Algorithm for Unsolvable Inverse Kinematics of a Class of Six-DoF Manipulators. - Shota Sekiguchi; Ryo Kikuuwe (SII, 2020)

Implicit-Euler Implementation of Super-Twisting Observer and Twisting Controller for Second-Order Systems. - Xiaogang Xiong; Ryo Kikuuwe; Shyam Kamal; Shanhai Jin (IEEE Trans. Circuits Syst., 2020)

Reference ZMP Generation for Teleoperated Bipedal Robots Walking on Non-Flat Terrains. - Tomoya Ando; Tomofumi Watari; Ryo Kikuuwe (SII, 2021)

A Sliding-Mode Set-Point Position Controller for Hydraulic Excavators. - Yuki Yamamoto; Jinjun Qiu; Yoshiki Munemasa; Takayuki Doi; Takao Nanjo; Koji Yamashita; Ryo Kikuuwe (IEEE Access, 2021)

Nonsmooth Quasistatic Modeling of Hydraulic Actuators. - Ryo Kikuuwe; Tomofumi Okada; Hideo Yoshihara; Takayuki Doi; Takao Nanjo; Koji Yamashita (CoRR, 2021)

Sliding motion accuracy of proxy-based sliding mode control subjected to measurement noise and disturbance. - Ryo Kikuuwe (Eur. J. Control, 2021)

Chattering of proxy-based sliding mode control in the presence of parasitic dynamics. - Ryo Kikuuwe; Pablo J. Prieto; Jorge-Antonio López-Rentería (IMA J. Math. Control. Inf., 2021)

Neural Encoding of Mass Matrices of Articulated Rigid-body Systems in Cholesky-Decomposed Form. - Shih-Ming Wang; Ryo Kikuuwe (ICIT, 2022)

Implicit Implementation of Nonsmooth Controllers to Nonsmooth Actuators. - Ryo Kikuuwe; Yuki Yamamoto; Bernard Brogliato (IEEE Trans. Autom. Control., 2022)

Position-Commanding Anti-Sway Controller for 2-D Overhead Cranes Under Velocity and Acceleration Constraints. - Ryo Nishimoto; Ryo Kikuuwe (IEEE Access, 2023)

COM Shifter and Body Rotator for Step-by-Step Teleoperation of Bipedal Robots. - Yachen Zhang; Ryo Kikuuwe (IEEE Access, 2023)

End-Effector Position Estimation and Control of Hydraulic Excavators with Total Stations. - Yuki Yamamoto; Ryo Kikuuwe (SII, 2024)

Solving Technical Difficulties in Implementing Teleoperated Biped Walking on NAO Robot. - Yachen Zhang; Ryo Kikuuwe (SII, 2024)

An Admittance Controller with a Jerk Limiter for Position-Controlled Robots. - Ryusei Mae; Ryo Kikuuwe (J. Robotics Mechatronics, 2024)

A New Variable-Gain Sliding Mode Filter and Its Application to Velocity Filtering. - Myo Thant Sin Aung; Ryo Kikuuwe; Soe Lin Paing; Jun Yang; Haoyong Yu (ICRA, 2025)

Torque-based Balancing Control for Teleoperated Bipedal Robots. - Hanae Yamamoto; Katsuya Kanaoka; Ryo Kikuuwe (SII, 2025)

A Position Controller for Hydraulic Excavators With Deadtime and Regenerative Pipelines. - Yuki Yamamoto; Jinjun Qiu; Takayuki Doi; Takao Nanjo; Koji Yamashita; Ryo Kikuuwe (IEEE Trans Autom. Sci. Eng., 2025)