Koji Maruyama

Papers

Total Citations

259

H-Index

About

Koji Maruyama is a pioneering researcher in the field of robotics and control systems, whose work in the mid-1980s helped establish sliding mode control as a practical and powerful approach for robot manipulator systems. His most influential contribution, "A Microprocessor-Based Robot Manipulator Control with Sliding Mode" (1987), has garnered 142 citations and demonstrated how Variable Structure System (VSS)-based sliding mode control could effectively suppress complex interactions between robotic joints, yielding robust, real-world applicable systems. This work was preceded by his 1986 paper on practical robust control of robot arms using VSS, which accumulated 98 citations and addressed critical challenges including parametric uncertainties, external disturbances, and variable payload conditions — longstanding obstacles in reliable robotic control. His complementary study on time-varying switching surfaces further advanced the theoretical foundations of multi-joint manipulator control by tackling inertia variations and nonlinear forces such as Coriolis and centrifugal effects. Together, Maruyama's contributions represent foundational milestones in making robust robot control both theoretically sound and practically implementable, earning him a lasting place in the robotics and control engineering literature.