Papers
45
Total Citations
397
H-Index
11
About
K. Koyanagi is a versatile robotics and human-assistive technology researcher whose work spans rehabilitation engineering, haptic systems, biomechanical robotics, and accessible computing. Best known for contributions to the five-year NEDO project on upper limb rehabilitation, Koyanagi played a central role in developing the 3D Exercise Machine for Upper Limbs (EMUL), integrating robotics, electrorheological (ER) actuators, and virtual reality to enable quantitative, objective assessment of patient motor function — work that collectively attracted over 140 citations across multiple publications. The VR-STEF system with force display glove further demonstrated Koyanagi's commitment to replacing subjective clinical evaluations with data-driven methodologies. Beyond rehabilitation, Koyanagi explored bio-inspired robotics, publishing a notable study on jumping mechanisms that replicate the bi-articular muscle mechanics found in vertebrates, earning 22 citations and showcasing a broader interest in biomimetic design. The development of high-performance magnetorheological (MR) actuators for 2D force display systems further illustrated expertise in safe human-robot interaction. Perhaps most notably, Koyanagi's P-CUBE project — an algorithm education tool for visually impaired learners — reflects a humanistic dimension to the research, bridging robotics with inclusive education. Together, these contributions mark Koyanagi as an impactful, socially conscious engineer advancing human-centered technology.
Research Focus
Key Achievements
Top Papers
- 1
- 2Development of VR-STEF system with force display glove system29 citations · 2005
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- 4Development of rehabilitation system for the upper limbs in a NEDO project23 citations · 2004
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- 9Rehabilitation system with 3-D exercise machine for upper limb12 citations · 2004
- 10High-performance 2-D force display system using MR actuators11 citations · 2005