| UEDA, Teijiro |
April, 1940 - May 1940 |
| TAKASE, Sotaro |
May 1940 - August 1946 |
| OOTSUKA, Kinnosuke |
March 1947 - February 1949 |
| NAKAYAMA, Ichiro |
February 1949 - November 1949 |
| TSURU, Shigeto |
November 1949 - October 1956 |
| OHARA, Keiji |
February 1957 - January 1959 |
| TAKAHASHI, Chotaro |
February 1959 - January 1963 |
| IOCHI, Ryotaro |
February 1963 - January 1965 |
| TSURU, Shigeto |
February 1965 - January 1967 |
| YAMADA, Isamu |
February 1967 - January 1969 |
| OONO, Seizaburo |
February 1969 - August 1969 |
| OHKAWA, Kazushi |
August 1969 - October 1970 |
| YAMADA, Hideo |
October 1970 - October1972 |
| ISHIKAWA, Shigeru |
October 1972 - April 1974 |
| UMEMURA, Mataji |
April 1974 - June 1974 |
| ITO, Masakichi |
June 1974 - May 1976 |
| SATO, Sadayuki |
June 1976 - May 1978 |
| KURABAYASHI, Yoshimasa |
June 1978 - May 1980 |
| EMI, Koichi |
June 1980 - March 1982 |
| FUJINO, Shozaburo |
March 1982 - February 1984 |
| MIYANABE, Noboru |
March 1984 - February 1986 |
| TSUDA, Takumi |
March 1986 - February 1988 |
| MIZOGUCHI, Toshiyuki |
March 1988 - February 1990 |
| MINAMI, Ryoshin |
March 1990 - February 1992 |
| TOMIZAWA, Kenji |
March 1992 - February 1994 |
| ODAKA, Konosuke |
March 1994 - February 1996 |
| KIYOKAWA, Yukihiko |
March 1996 - February 1998 |
| TERANISHI, Juro |
March 1998 - February 2000 |
| SAITO, Osamu |
March 2000 - February 2002 |
| NISHIMURA, Yoshiaki |
March 2002 - February 2004 |
| KUBONIWA, Masaaki |
March 2004 - July 2005 |
| TAKAYAMA, Noriyuki |
August 2005 - July 2007 |
| NISHIZAWA, Tamotsu |
August 2007 - March 2011 |
| ASAKO, Kazumi |
April 2011 - March 2013 |
| FUKAO, Kyoji |
April 2013 - March 2015 |
| KITAMURA, Yukinobu |
April 2015 - March 2017 |
| OSHIO, Takashi |
April 2017- March 2019 |
| WATANABE, Toshiaki |
April 2019 - March 2021 |
| KUROSAKI, Takashi |
April 2021 - March 2023 |
| IWAISAKO, Tokuo |
April 2023 - |
