27 May 2025Appointed Toda, Tatsuya as Director
29 May 2024Appointed Sasaoka, Hiroshi as Director
1 March 2024Appointed Masaki, Takahiro as Secretary
1 March 2024Resigned Shibuki, Tsutomu as Secretary
1 September 2021Resigned Isshiki, Tomoyuki as Secretary
1 September 2021Appointed Shibuki, Tsutomu as Secretary
1 March 2019Appointed Isshiki, Tomoyuki as Secretary
28 February 2019Resigned Matsushima, Kosuke as Secretary
26 May 2017Appointed Matsushima, Kosuke as Secretary
26 May 2017Resigned Toda, Tatsuya as Secretary
28 October 2015Appointed Toda, Tatsuya as Secretary
1 March 2014Resigned Takahashi, Masaru as Secretary
25 July 2012Resigned Ito, Koichi as Secretary
25 July 2012Appointed Takahashi, Masaru as Secretary
25 May 2012Appointed Ito, Koichi as Secretary
25 May 2012Resigned Koike, Hiroshi as Secretary
25 May 2012Resigned Koike, Hiroshi as Director
28 February 2011Resigned Nakano, Fuji as Director
13 October 2009Resigned Inoue, Masataka as Director
1 March 2009Resigned Terada, Masaaki as Director
1 March 2009Resigned Terada, Masaaki as Secretary
1 March 2009Appointed Koike, Hiroshi as Secretary
1 March 2009Appointed Koike, Hiroshi as Director
27 May 2005Appointed Inoue, Masataka as Director
22 July 2003Resigned Inoue, Masataka as Secretary
22 July 2003Appointed Terada, Masaaki as Secretary
22 July 2003Appointed Terada, Masaaki as Director
22 July 2003Resigned Inoue, Masataka as Director
11 February 1998Appointed Inoue, Masataka as Director
11 February 1998Appointed Inoue, Masataka as Secretary
11 February 1998Appointed Nakano, Fuji as Director