◆1st
KAWAISHI Kunio
Aug. 1, 1953~Apr. 1, 1956
◆2nd
NISHIMARU Kazuyoshi
Apr. 1, 1956~Oct. 22, 1956
◆3rd
SUZUKI Naokichi
Oct. 22, 1956~Mar. 31, 1958
◆4th
WATANABE Susumu
Mar. 31, 1958~Mar. 31, 1960
◆5th
TSUKAMOTO Hiroshi
Mar. 31, 1960(Acting Director)
Apr. 1, 1960~Mar. 31, 1962
◆6th
NAKATSUKA Masayuki
Apr. 1, 1962~Mar. 31, 1964
◆7th
URAKI Jiro
Apr. 1, 1964~Mar. 31, 1966
◆8th
NAKATSUKA Masayuki
Apr. 1, 1966~May 6, 1969
◆9th
URAKI Jiro
May 7, 1969~May 21, 1969(Acting Director)
May 22, 1969~Oct. 13, 1969
◆10th
KOBAYASHI Hiroshi
Oct. 13, 1969~Mar. 12, 1970(Acting Director)
Mar. 12, 1970~Mar. 11, 1974
◆11th
SAWANO Juzo
Mar. 12, 1974~Apr. 1, 1977
◆12th
YAMURA Takuso
Apr. 2, 1977~Apr. 1, 1979
◆13th
NIHIRA Hiromi
Apr. 2, 1979~Apr. 1, 1981
◆14th
YAMURA Takuso
Apr. 2, 1981~Apr. 1, 1982
◆15th
NISHIMOTO Yukio
Apr. 2, 1982~Sep. 10, 1985
◆16th
MATSUO Yoshiyasu
Sep. 10, 1985~Oct. 1, 1985(Acting Director)
Oct. 1, 1985~Mar. 31, 1986
◆17th
TOKUOKA Shoji
Apr. 1, 1986~Mar. 31, 1988
◆18th
MORIO Michio
Apr. 1, 1988~Mar. 31, 1990
◆19th
HARADA Yasuo
Apr. 1, 1990~May 20, 1993
◆20th
KAWASAKI Takeshi
May 21, 1993~Mar. 31, 1994
◆21st
CHOSHI Kanji
Mar. 31, 1994~Mar. 31, 1996
◆22th
YOSHINAGA Fumitaka
Apr. 1, 1996~Mar. 31, 1998
◆23rd
MATSUURA Yuichirio
Apr. 1, 1998~Mar. 31, 2000
◆24th
OHAMA Kozo
Apr. 1, 2000~Mar. 31, 2002
◆25th
INAI Koki
Apr. 1, 2002~Mar. 31, 2006
◆26th
KONO Nobuoki
Apr. 1, 2006~Mar. 31, 2010
◆27th
YOSHIZUMI Masao
Apr. 1, 2010~Mar. 31, 2014
◆28th
KIHARA Yasuki
Apr. 1, 2014~Mar. 31, 2016
◆29th
HIDE Michihiro
Apr. 1, 2016~Mar. 31, 2020
◆30th
AWAI Kazuo
Apr. 1, 2020~Mar. 31, 2024
Apr. 1, 2024~Jun. 30, 2024(Acting Director)
◆31st
SHIME Nobuaki
Jul. 1, 2024~