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Cyber-Robotics Lab
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A lab that studies the fusion of humans and robots, including myoelectric prosthetic hands.
AboutAbout the lab
What is a machine for the body that adapts to humans?
The Cyber-Robotics Lab studies applications of Cyber-Robotics, a field that fuses humans and robots, to medicine, welfare, and rehabilitation.
It works on myoelectric prosthetic hands that replace the motor function of people with upper-limb loss, and exoskeleton-type power-assist devices for the rehabilitation of finger paralysis.
The lab approaches the question "What is a machine for the body that adapts to humans?" from an engineering standpoint, and its research covers everything from replacing bodily functions to augmenting them.
The lab's website also introduces it under the name "Kato Lab."
Key terms
- Myoelectric prosthetic hand
- A prosthetic hand that identifies hand and finger movements from EMG signals measured on the skin and drives a robot hand accordingly
- Surface EMG
- Electrical signals produced when muscles move, measured on the surface of the skin
- Targeted muscle reinnervation
- A surgical procedure that transfers the motor nerves of the hand and fingers to upper-arm muscles, making it possible to control a prosthetic hand with surface EMG from the upper arm
ResearchResearch themes
This lab develops myoelectric prosthetic hands that replace the motor function of people with upper-limb loss, and exoskeleton-type power-assist devices for the rehabilitation of finger paralysis. It approaches the question "What is a machine for the body that adapts to humans?" from an engineering standpoint, and its research covers everything from compensating for bodily functions to augmenting them.
*Illustrative imageMotion Classification for Natural Myoelectric Prosthetic Hand Control
The features of surface electromyogram (EMG) signals measured on the skin differ from person to person and also change over long recording sessions. The lab proposes new methods for classifying hand and finger movements, such as introducing sequential learning systems and using EMG features from the preparatory motion before grasping, aiming for more natural control.
*Illustrative imageFive-Finger Robot Hand with Few Actuators
The lab aims to reproduce as many hand and finger movements as possible with as few actuators as possible, while keeping the hand within a volume and weight that a person can wear. It develops low-degree-of-freedom hands with wire-interference drive systems that imitate the muscle-tendon structure of the human hand, and with variable joint stiffness mechanisms.
*Illustrative imageControlling a Prosthetic Hand with Upper-Arm EMG
Myoelectric prosthetic hands are difficult to apply to amputations above the elbow. The lab aims to establish a technology that uses targeted muscle reinnervation to transfer the motor nerves of the hand and fingers to upper-arm muscles, and then controls a prosthetic hand from surface EMG recorded on the skin of the upper arm. This is joint research with Orthopaedic Surgery, Department of Surgery, Tokai University School of Medicine.
*Illustrative imageMyoelectric Prosthetic Hand Simulator Using AR
The lab is developing a simulator that overlays a virtual myoelectric prosthetic hand and virtual objects on camera images of real space. Because the virtual hand can physically touch virtual objects, a variety of rehabilitation training is possible.
MembersFaculty
The members of the Cyber-Robotics Lab consist of faculty members, graduate students, undergraduate students, and a secretary.As of 2026
- ProfessorRyu Kato
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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: “Brain-Controlled Prosthetic Arm 2” FDA / Public domain (cropped)
- Motion Classification for Natural Myoelectric Prosthetic Hand Control: “3-D Printed Prosthetic Hand ( )” The U.S. Food and Drug Administration / Public domain (cropped)
- Five-Finger Robot Hand with Few Actuators: “Robotic Hand at Hannover Messe 2016” NearEMPTiness / CC BY-SA 4.0 (cropped)
- Controlling a Prosthetic Hand with Upper-Arm EMG: “Prosthetic arm with strings - DPLA - 4535afbfb91ae2e2c9c4c1d7c078bb29” Robbins, Morris A. / Public domain (cropped)
- Myoelectric Prosthetic Hand Simulator Using AR: “Augmented-reality” zedinteractive / CC0 (cropped)
- Related lab (Applied Solid Mechanics Lab): “Friction-Driven Encoder Test (encoder 04-CC)” International Gemini Observatory/NOIRLab/NSF/AURA / CC BY 4.0 (cropped)
- Related lab (Micro Robo-Mechanics Lab): “Rotary piezoelectric motor ANR101v” Jaanus.kalde / CC BY-SA 3.0 (cropped)
- Related lab (Bio-Mechanical Systems Lab): “Test Bench at the Fraunhofer LBF for active vibration control” Thomas Ernsting / CC BY-SA 4.0 (cropped)
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