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Tsutsui-Endo Lab (YASKAWA Future Technology Joint Research Chair)
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A lab building ultralight actuators for future robots that work alongside people.
AboutAbout the lab
A new step toward future collaborative robots.
Tsutsui-Endo Lab studies ultralight actuators made with new materials for next-generation collaborative robots.
It is a joint research chair with YASKAWA Electric Corporation, established across two departments: Electrical and Electronic Engineering and Mechanical Engineering.
The lab pursues mechatronics research that crosses the boundary between electrical/electronic and mechanical engineering, in collaboration with many labs inside and outside the university, including the School of Materials and Chemical Technology.
Key terms
- Actuator
- A device that converts energy such as electricity into mechanical motion, such as rotating or pushing. A motor is one type
- Collaborative robot
- A robot designed to work alongside people without being enclosed by safety fences
- Topology optimization
- A design method that calculates where to place material and where to leave empty space, automatically finding shapes that are light and perform well
NewsLab news
Lab tour and information session for the undergraduate specific research project (assignment in April 2026)
Lab tour and information session for the master's program (admission in April 2027)
ResearchResearch themes
The lab takes on the development of ultralight actuators using new materials, aiming to realize next-generation collaborative robots. It advances mechatronics research that spans electrical/electronic and mechanical engineering, working together with a wide range of specialties.
*Illustrative imageLightweight motors from new materials
Research on making motors and actuators lighter and higher-performing using new materials such as carbon nanotube (CNT) conductors. The lab is also investigating the use of CNTs as winding material.
*Illustrative imageLightweight design through topology optimization
For motor stators and rotors and robot links, the lab uses topology optimization to generate shapes and create lightweight designs. It also aims to expand design freedom.
*Illustrative imageMagnetic worm gears and high-force motors
The lab designs actuators with high torque density that can produce large force despite their small size, by building a magnetic gear mechanism (speed reduction using the force of magnets) into the motor.
*Illustrative imageRobot joints that are easy to move from the outside
Research on combining multiple motors to reduce a joint's apparent weight (reflected inertia), creating lightweight robot joints that move easily under external force, for application to collaborative robots.
MembersFaculty
- Project ProfessorYukio TsutsuiPublications ↗
- Project Associate ProfessorEndo MitsuruPublications ↗
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Детали волновых передач” Twdragon / CC BY-SA 3.0 (cropped)
- Lightweight motors from new materials: “CSIRO ScienceImage 988 Carbon nanotubes spun to form a yarn” CSIRO / CC BY 3.0 (cropped)
- Lightweight design through topology optimization: “Topology Optimization with filtereing” Meenakshsundaram / CC BY-SA 3.0 (cropped)
- Magnetic worm gears and high-force motors: “Worm drive ( )” Bernard Spragg. NZ / CC0 (cropped)
- Robot joints that are easy to move from the outside: “Harmonic Drive” wd / CC BY-SA 4.0 (cropped)
- Related lab (Takemoto-Kiyota Lab): “Stator Winding of a BLDC Motor” Medvedev / CC BY-SA 3.0 (cropped)
- Related lab (Kodera Lab): “Quantum lab ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped)
- Related lab (Miyamoto Lab): “Fluorescence in calcite” Jan Pavelka / CC BY-SA 4.0 (cropped)
- Related lab (Nishiyama Lab): “Laser diode chip” NASA
（PD NASA。 作者欄なし） / Public domain (cropped)
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