Kuroda Seiki (1922–1924) Ryōjirō Fukuhara (福原鐐二郎) (1924–1931) Naohiko Masaki (正木直彦) (1931–1935) Tōru Shimizu (清水澄) (1937–1947) Seiichirō Takahashi (高橋誠一郎) (1948–1979)...