Kyoichi Ui

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About

Kyoichi Ui is a leading figure in space robotics, specializing in the development of autonomous systems for on-orbit servicing and satellite capture. His research centers on reconfigurable robotic architectures, micro-gravity manipulation, and dual-arm control for debris removal. Ui’s seminal work, "Micro-gravity experiment of a space robotic arm using parabolic flight" (2004, 61 citations), provided critical validation of the Reconfigurable Brachiating space Robot (RBR) unit arm, demonstrating how a four-degree-of-freedom arm and end-effector perform in micro-gravity conditions—a foundational contribution to space-based robotic mobility. His "Ground experiment system for dual-manipulator-based capture of damaged satellites" (2002, 22 citations) established a pioneering simulator using two 7-DOF manipulators and floating testbeds, enabling realistic testing of chaser-target interactions for satellite rescue. Ui also introduced the RBR system architecture (2000), featuring a center hub with three reconfigurable arms, each equipped with a pivot and end-effector, allowing the robot to brachiate across structures like a primate. With over 85 citations across his key works, Ui’s experiments and designs have directly influenced modern approaches to autonomous space repair and debris mitigation, making him a pivotal innovator in the field.