13.56-MHz Class-E RF power amplifier using normally-on GaN HEMT. - Masayuki Okamoto; Toshihiko Tanaka; Koyo Matuzaki; Tamotsu Hashizume; Hiroaki Yamada 003 (IECON, 2014)

Reducing capacitances of DC capacitors in smart charger for electric vehicles in single-phase three-wire distribution feeders with sinusoidal charging and discharging for Li-ion batteries. - Yuki Okamoto; Fuka Ikeda; Kei Nishikawa; Hiroaki Yamada 003; Toshihiko Tanaka; Masayuki Okamoto (GCCE, 2017)

A Practical Control Strategy for Hybrid Static Var Compensator. - Yuta Ohori; Hiroaki Yamada 003; Fuka Ikeda; Masayuki Okamoto; Toshihiko Tanaka (ISCIT, 2021)