Max Robotics — Global Service Robot Directory + US Certification

About

Keisuke Yagi is a robotics researcher whose work centers on assistive and rehabilitation devices, with a particular focus on semi-active exoskeletons and orthoses that leverage smart materials. His major contributions lie in the design of variable-impedance mechanisms for gait support and back support exoskeletons. In his 2019 paper on a variable viscosity link for a robotic Ankle Foot Orthosis (AFO), Yagi introduced a novel system that uses an elastic link and energy storage to mitigate foot-drop symptoms, earning 16 citations. That same year, his work on MRLift—a semi-active lower back support exoskeleton employing magnetorheological (MR) fluid and force retention technology—also garnered 16 citations, addressing critical usability and battery-life challenges in wearable robots. Yagi has also explored humanoid locomotion augmentation, modeling the use of a casterboard for enhanced mobility, and contributed to nonlinear control theory with a study on Plant-Input-Mapping discretization. His research stands out for its practical approach to improving the cost-performance and energy efficiency of wearable robotic systems, making strides toward their broader adoption in healthcare and industry.