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About

Toshio Ishizaki is a pioneering researcher in wireless power transfer (WPT) for underwater and robotic systems, with a focus on enabling efficient, contactless energy delivery in challenging environments. His major contributions center on constructing WPT systems for moving ornamental robot fish in aquariums, where he addresses critical issues such as resonant frequency shifts and power loss caused by dielectric materials like water. In his most-cited work, "Wireless power transfer to moving ornamental robot fish in aquarium" (2014, 15 citations), he demonstrated a coupled resonator technique that successfully powers swimming robot fish, laying groundwork for applications in capsule endoscopes. His subsequent studies, including "Construction of a secure wireless power transfer system for robot fish" (2015, 8 citations), further refined this approach by integrating solenoidal resonators to replace button batteries. Ishizaki also extended his research to articulated arm robots, developing a contactless power transfer module using rotating disk capacitors and series inductors to improve power factor. Notably, his work on the role of water conductivity in WPT systems (2015, 2 citations) provides essential insights for underwater power transfer. Through these innovations, Ishizaki has advanced the feasibility of wireless power in aquatic and robotic applications, impacting fields from biomedical devices to industrial automation.