Name	Term of office
Tsunayuki Yamamoto	May 31, 1949 -March 31, 1957
Kanzoh Yamazaki	April 1, 1957 -March 31, 1961
Juzaburoh Takazawa	April 1, 1961 -March 31, 1965
Yuzaburoh Shibata	April 1, 1965 -March 31, 1967
Juitsu Endoh	April 1, 1967 -February 28, 1969
Syoichi Wakiya	March1, 1969 -February 28, 1971
Seiji Kondoh	March1, 1971 -February 28, 1973
1Ugoroh Kobayashi	March1, 1973 -February 28, 1975
Juitsu Endoh	March1, 1975 -February 28, 1979
Noboru Saitoh	March1, 1979 -March 31, 1981
Nobuyuki Sakai	April 1, 1981 -March 31, 1985
Shigeru Shimoda	April 1, 1985 -March 31, 1987
Takeo Abe	April 1, 1987 -March 31, 1991
Ryoichi Ichimiya	April 1, 1991 -March 31, 1995
Yoshiaki Saitoh	April 1, 1995 -March 31, 1999
Tomiichi Hasegawa	April 1, 1999 -March 31, 2003
Sengoku Masakazu	April 1, 2003 -March 31, 2007
Ohkawa Hideo	April 1, 2007 -March 31, 2011
Tsubokawa Norio	April 1, 2011 -March 31, 2013
Kaneko Futao	April 1, 2013 -January 31, 2014
Tanabe Yuji	February 1, 2014 -