Kenji Kimura, Ph.D., is an Associate Professor in the Department of Control Engineering at the National Institute of Technology (KOSEN), Matsue College, Japan. He received his Master's degree in Mathematics and worked as a high school mathematics teacher for approximately 20 years before earning his Ph.D. in 2020. His interdisciplinary career spans mathematics, robotics, and engineering education. His research interests include mobile robotics, omni-wheel and omni-roller mechanisms, spherical mechanisms, robot kinematics, and mechanism design. In particular, his research focuses on the mathematical modeling and analysis of roller-driven spherical motion, including constrained and unconstrained kinematics, singularity analysis, and the systematic design of robotic mechanisms. Drawing on his extensive experience in mathematics education, he is also actively engaged in STEAM education, exploring approaches that integrate mathematics, engineering, robotics, and hands-on problem solving. His current work bridges mathematical theory, robotic mechanism design, and STEAM education.