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Takeshi Yamamoto is a pioneering researcher in space robotics, with a focus on tethered satellite systems and energy-efficient manipulation. His work centers on developing innovative robotic systems for space applications, particularly free-flying manipulators and tethered space robots that connect to mother spacecraft via cables. Yamamoto’s major contributions include real-time path planning methods that minimize energy consumption in space manipulators by accounting for mechanical friction and motor resistance, and attitude control techniques for tethered bodies using arm link motion. His most cited paper (19 citations) introduces a novel approach to saving energy in free-flying robot manipulators, while his work on microgravity experiments for tethered body control (14 citations) has advanced the understanding of multi-body space systems. Yamamoto also led the development of the KUKAI pico-satellite, launched by JAXA in 2009, which demonstrated tethered space robot technology in orbit. Additionally, he contributed to the STARS satellite project, the first satellite developed in Shikoku, featuring a mother-daughter configuration. His research in graspless manipulation, which enables robots to handle objects without rigid grasping, further showcases his versatility. With over 45 total citations, Yamamoto’s work continues to influence space robotics and satellite design.