Kotaro Honda was taught by what physicist who was a pioneer of Japanese physics during the Meiji period?
Kotaro Honda:  He was taught by the famous Japanese physicist Hantaro Nagaoka at the University of Tokyo. Hantaro Nagaoka: Hantaro Nagaoka (長岡 半太郎 , Nagaoka Hantarō , August 19, 1865 – December 11, 1950) was a Japanese physicist and a pioneer of Japanese physics during the Meiji period.
Hantaro Nagaoka