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Mizuki Nakajima is a robotics researcher whose work centers on the motion control and mechanical design of articulated mobile robots and snake robots, with particular emphasis on navigation through complex, constrained environments. Nakajima's most influential contribution — "Development and Control of Articulated Mobile Robot for Climbing Steep Stairs" (2018, 82 citations) — established foundational methods for adapting multi-body robots to challenging 3D terrain, including stair climbing and navigation in narrow spaces. Building on this, Nakajima extended these control frameworks to pipe inspection environments and non-parallel plane locomotion, addressing real-world industrial inspection needs. A recurring theme across the body of work is disaster prevention: the T²Snake-4 robot system, developed and field-tested in industrial plant settings, exemplifies the translation of theoretical control methods into deployable technology capable of valve operation and information gathering in hazardous conditions. Nakajima also advanced task-space control for robots equipped with soft grippers, enabling object manipulation during locomotion. More recently, research into obstacle-aided locomotion using piecewise helixes has expanded snake robot capabilities in unstructured environments. With over 290 cumulative citations, Nakajima's research represents a meaningful and practical contribution to mobile robotics and autonomous inspection systems.