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Humanoid

Kojiro

Built by Tokyo University

Updated May 2026·methodology
Kojiro

Overview

Kojiro is a humanoid robot with a musculoskeletal system that mimics how the human body works to generate motion. Developed at the University of Tokyo's JSK lab, the robot features artificial muscles and tendons, a flexible spine with cable-driven actuation, and 56 degrees of freedom. The goal is to build a robot that is light and agile, capable of moving much as people do.

Detailed specifications

Motion & kinematics1
Dof
60
Other2
Company Country
JP
Additional Information
- Developed at the University of Tokyo's JSK lab. - Uses a flexible spine and cable-driven actuation system. - Equipped with advanced sensors to simulate human-like movement. - Notable for the use of synthetic fibers such as Vectran, Dyneema, and Zylon in construction. - Designed for research purposes and not commercially available.

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