Sho Kajii

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About

Dr. Sho Kajii is a leading researcher in micro-robotics and acoustic actuation, with a primary focus on the development of miniaturized, self-propelled underwater systems. His most impactful work centers on the innovative use of Surface Acoustic Waves (SAW) for propulsion, a field where he has made defining contributions. In his highly cited 2020 study, "Propulsion Measurement of High Frequency Underwater SAW Actuators," Dr. Kajii demonstrated how SAW transducers—known for their simple, scalable electrode structures—can be engineered to generate thrust in aquatic environments. This work is pivotal for advancing applications in life sciences, microbiology, and medical devices, where tiny, untethered robots are essential. By quantifying the propulsion performance of these high-frequency actuators, he has provided a foundational framework for designing more efficient and controllable micro-swimmers. His research bridges fundamental acoustics with practical engineering, offering a pathway toward truly miniaturized, wirelessly powered robots. With 9 citations on this key paper alone, Dr. Kajii’s work is increasingly recognized as a cornerstone in the emerging field of SAW-driven micro-robotics, inspiring further exploration into autonomous systems for fluidic environments.