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Yokoi Lab
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The lab studies technologies that connect humans and machines, such as myoelectric prosthetic hands and electrical stimulation.

AboutAbout the lab
Rebuilding engineering theory and technology with humans at the center.
The Yokoi Lab's main research task is to rebuild the theoretical framework of engineering, with humans at its center, together with its surrounding technologies.
Starting from studying humans and living organisms themselves from an engineering viewpoint, the lab explores natural interfaces between humans and machines and between society and machines, as well as technologies that integrate them.
The research draws on human-machine co-adaptive systems, cognitive science, biosignal processing, robotics, mechatronics, learning theory, evolutionary computation, and embodiment-based machine theory.
The lab's website presents it as the joint "Yokoi-Jiang-Togo Lab," together with the labs of Associate Professor Jiang and Associate Professor Togo.
Key terms
- Myoelectric prosthetic hand
- A prosthetic hand that can be moved by the activity of the arm muscles
- Functional electrical stimulation (FES)
- A method that uses electricity to stimulate muscles, making them contract and producing movement
- Brain-machine interface (BMI)
- A system that connects the brain and a machine. In this lab, it is used to control robot arms with brain signals such as EEG
ResearchResearch themes
The lab aims for a society in which mechanical systems and human society coexist and elevate each other. Its goal is to create precise mechanical systems that can touch smoothly and softly, rather than hard, cold machines. To achieve this, the lab holds that robots and machines must realize cognitive and adaptive behavior like that of humans and living things, such as learning and adapting to their environment.
*Illustrative imageResearch and Development of Myoelectric Prosthetic Hands
The lab researches and develops powered myoelectric prosthetic hands for people with upper-limb amputation. It also develops each component a myoelectric prosthesis needs: the hand mechanism, control, artificial intelligence, myoelectric sensors, and cosmetic gloves.
*Illustrative imageElectrical Stimulation to Move Paralyzed Limbs
The lab researches and develops functional electrical stimulation (FES) methods to restore function in paralyzed limbs. It searches for stimulation waveforms that cause less pain and discomfort, and studies effective rehabilitation methods that use multichannel stimulation.
*Illustrative imageRobot Arms Controlled by Brain Signals
The lab designs and develops robot arms for brain-machine interfaces (BMI) and studies control methods. It researches and develops ways to control lightweight, multi-degree-of-freedom, high-output robot arms using EEG signals.
MembersFaculty
The members of the Yokoi-Jiang-Togo Lab are faculty, researchers, doctoral, master's, and undergraduate students, and research students.As of 2025
- ProfessorHiroshi Yokoi
VoicesStudent voices
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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: “3-D Printed Prosthetic Hand ( )” The U.S. Food and Drug Administration / Public domain (cropped)
- Research and Development of Myoelectric Prosthetic Hands: “Prosthetic hand iron and springs Oxford” takomabibelot / CC BY 2.0 (cropped)
- Electrical Stimulation to Move Paralyzed Limbs: “دستگاه تیوان” Pouria008 / CC BY-SA 4.0 (cropped)
- Robot Arms Controlled by Brain Signals: “Brain-computer interface (schematic)” see source / CC BY 2.5 (cropped)
- Related lab (Shintake Lab): “Production Pneumatic Actuator with PWM Solenoid Valve” PWMhistorical / CC BY-SA 4.0 (cropped)
- Related lab (Min-Sato Lab): “Big Dog robot - D60 Symposium - Defense Advanced Research Projects Agency - DSC05557” Daderot / CC0 (cropped)
- Related lab (Togo Lab): “Robotic Hand at Hannover Messe 2016” NearEMPTiness / CC BY-SA 4.0 (cropped)
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