1 April 2026Appointed Sugawara, Junya as Director
1 April 2026Resigned Hirao, Kazuyoshi as Director
13 June 2024Appointed Hirao, Kazuyoshi as Director
13 June 2024Resigned Nozawa, Ken as Director
28 September 2020Resigned Ichikawa, Makoto as Director
28 September 2020Appointed Nozawa, Ken as Director
2 December 2019Appointed Ichikawa, Makoto as Director
2 June 2017Resigned Kajimura, Isao as Director
25 September 2015Resigned Wakana, Koichi as Director
25 September 2015Appointed Kajimura, Isao as Director
25 September 2015Resigned Takayama, Yasuhiro as Director
29 August 2014Appointed Takayama, Yasuhiro as Director
29 August 2014Appointed Wakana, Koichi as Director
29 August 2014Resigned Takiguchi, Naoto as Director
29 August 2014Resigned Ogiwara, Yasunobu as Director
19 April 2013Appointed Takiguchi, Naoto as Director
19 April 2013Resigned Katamura, Kazushige as Director
12 February 2013Resigned Saito, Kitaro as Director
20 April 2012Appointed Katamura, Kazushige as Director
20 April 2012Resigned Ueda, Yutaka as Director
1 February 2011Appointed Saito, Kitaro as Director
1 February 2011Appointed Ogiwara, Yasunobu as Director
1 April 2010Appointed Ueda, Yutaka as Director
1 April 2010Resigned Murai, Shunsuke as Director
9 November 2009Appointed Murai, Shunsuke as Director
9 November 2009Resigned Obara, Toru as Director
1 July 2009Resigned Amano, Tatsuro as Secretary
1 June 2009Appointed Obara, Toru as Director
1 June 2009Resigned Ueda, Yutaka as Director
5 March 2009Resigned Tate, Toshihiro as Director
5 July 2006Appointed Tate, Toshihiro as Director
5 July 2006Appointed Ueda, Yutaka as Director
5 July 2006Appointed Amano, Tatsuro as Secretary