Wasaburō [jp] 山沢 和三郎 September 10, 1938 November 19, 1941 Nishioka Yoshijirō [jp] 西岡 芳次郎 November 19, 1941 March 27, 1943 Ōno Sueo [jp] 大野 季夫 March 27, 1943...