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Takuma Hiraoka

7 accepted papers

2026

Development of Adaptive-Limb Transformable Robot for Portable and Replaceable End-Effectors With Compact Lock-Spin Mechanisms

RA-L 2026

Transformable robots adapt to various environments by changing their shape or functionality. The robots are able to further expand their task range by replacing their end-effectors (EEs). In this paper, we propose an adaptive-limb transformable robot capable of replacing multiple types of mounted EE

Cited by 0SourceScholar
2026

Development of Adaptive-Limb Transformable Robot for Portable and Replaceable End-Effectors with Compact Lock-Spin Mechanisms

ICRA 2026poster

Transformable robots adapt to various environments by changing their shape or functionality. The robots are able to further expand their task range by replacing their end-effectors (EEs). In this paper, we propose an adaptive-limb transformable robot capable of replacing multiple types of mounted EE…

Cited by 0SourceScholar
2025

Development of Variable Chain Motor with Shape and Speed-Torque Characteristics Variability and Its Application to a Humanoid

IROS 2025

Various methods have been proposed to achieve high output torque and a wide output range for fast and high-load robotic motions. However, in robots composed of slender frames, such as humanoid robots, the limited space available for actuators and transmission components restricts the application of

Cited by 0SourceScholar
2025

Trajectory Generation for Humanoid Backflips and Jumps Based on Whole-Body Dynamics Optimization with Consideration of KKT Residual Convergence

IROS 2025

For trajectory generation of whole-body jumping motions such as humanoid backflips, it is crucial to simultaneously optimize the takeoff, flight, and landing phases while considering full-body dynamics and kinematics. Although such methods have been proposed for standard jumping motions, they have n

Cited by 0SourceScholar
2024

HumanMimic: Learning Natural Locomotion and Transitions for Humanoid Robot via Wasserstein Adversarial Imitation

ICRA 2024poster

Transferring human motion skills to humanoid robots remains a significant challenge. In this study, we introduce a Wasserstein adversarial imitation learning system, allowing humanoid robots to replicate natural whole-body locomotion patterns and execute seamless transitions by mimicking human motio…

Cited by 33SourceScholar
2024

Magnetic tactile sensor with load tolerance and flexibility using frame structures for estimating triaxial contact force distribution of humanoid

IROS 2024poster

For humanoid whole body contact motions, it is important to recognize the existence of whole body contacts and the contact forces. The challenges in recognizing the existence of whole body contacts and the contact forces in life-size humanoids are: 1) the measurement part with low mechanical strengt…

Cited by 0SourceScholar
2023

Whole-Body Torque Control Without Joint Position Control Using Vibration-Suppressed Friction Compensation for Bipedal Locomotion of Gear-Driven Torque Sensorless Humanoid

IROS 2023poster

Humanoids operate in repeated contact and non-contact with their environment and so the motion of humanoids such as walking on uneven terrain or in a narrow space requires the accurate force and position control. Joint torque control systems are suitable for position and force control, but are prone…

Cited by 0SourceScholar