Specifications
Height
170 cm
Weight
56 kg
Country
Japan
Use Cases
Research
Overview
Musculoskeletal research humanoid from the University of Tokyo's JSK Lab: tendon-driven with 100+ motors, a rib cage and spine, and a party trick with real engineering behind it — it 'sweats', seeping deionized water through a porous laser-sintered aluminum frame to cool its motors evaporatively. Published in Science Robotics (2017); sibling to Kenshiro and Kojiro.
Sourcing Notes
jsk.t.u-tokyo.ac.jp verified 2026-08-20 (HTTP 200). Published in Science Robotics (2017); IEEE Spectrum coverage of 'sweating' cooling.
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