Comparative study of force control methods for bipedal walking using a force-sensitive hydraulic humanoid. - Kazuya Murotani; Ko Yamamoto 001; Taiki Ishigaki; Yoshihiko Nakamura (Adv. Robotics, 2020)

Dynamics Computation of a Hybrid Multi-link Humanoid Robot Integrating Rigid and Soft Bodies. - Taiki Ishigaki; Ko Yamamoto 001 (IROS, 2021)

Inverse Kinematics of Hybrid Multi-link System and its Application to Motion Capture for Athlete Wearing Sports Prosthesis. - Sunghee Kim; Taiki Ishigaki; Yuta Shimane; Yosuke Ikegami; Ko Yamamoto 001 (Humanoids, 2022)

Integration of Variable-height and Hopping Strategies for Humanoid Push Recovery. - Ko Yamamoto 001; Naoki Kobayashi; Taiki Ishigaki; Yuichi Sakemi (IROS, 2022)

Application of Piece-wise Constant Strain Model to Flexible Deformation Calculation of Sports Prosthesis and Stiffness Estimation. - Yuta Shimane; Taiki Ishigaki; Sunghee Kim; Yosuke Ikegami; Ko Yamamoto 001 (IROS, 2022)

Humanoid Motion Control by Compliance Optimization Explicitly Considering its Positive Definiteness. - Ko Yamamoto 001; Taiki Ishigaki; Yoshihiko Nakamura (IEEE Trans. Robotics, 2022)

Compliance Optimization Control for Rigid-Soft Hybrid System and its Application in Humanoid Robot Motion Control. - Zewen He; Taiki Ishigaki; Ko Yamamoto 001 (IROS, 2024)

Comprehensive Gradient Computation Framework of PCS Model for Soft Robot Simulation. - Taiki Ishigaki; Ko Ayusawa; Ko Yamamoto 001 (IEEE Robotics Autom. Lett., 2024)

Viscoelasticity estimation of sports prosthesis by energy-minimizing inverse kinematics and its validation by forward dynamics. - Yuta Shimane; Taiki Ishigaki; Sunghee Kim; Ko Yamamoto 001 (Adv. Robotics, 2024)

Unified Framework of Gradient Computation for Hybrid-Link System and Its Dynamical Simulation by Implicit Method. - Taiki Ishigaki; Ko Ayusawa; Ko Yamamoto 001 (IEEE Robotics Autom. Lett., 2025)