1 March 2026Resigned Ando, Tetsuya as Secretary
1 March 2026Appointed Kurakata, Norifumi as Secretary
1 March 2026Resigned Ando, Tetsuya as Director
23 May 2025Appointed Kurakata, Norifumi as Director
1 March 2022Appointed Ando, Tetsuya as Secretary
1 March 2022Resigned Kadokura, Yoshiaki as Secretary
1 March 2022Appointed Ando, Tetsuya as Director
4 May 2021Resigned Itakura, Hideki as Director
4 May 2021Appointed Oki, Masanori as Director
23 June 2017Resigned Ozaki, Takayuki as Director
29 May 2015Resigned Saito, Koji as Director
30 May 2014Appointed Nakazawa, Toru as Director
30 May 2014Resigned Shoji, Shunichi as Director
30 May 2014Resigned Kimura, Tetsuo as Director
30 May 2014Appointed Ozaki, Takayuki as Director
15 August 2013Appointed Kadokura, Yoshiaki as Secretary
31 May 2013Resigned Kojika, Shigemi as Director
31 May 2013Resigned Shiino, Michitaka as Director
31 May 2013Appointed Saito, Koji as Director
31 May 2013Appointed Shoji, Shunichi as Director
11 May 2011Appointed Kojika, Shigemi as Director
11 May 2011Resigned Kitazume, Keiji as Director
23 June 2008Appointed Itakura, Hideki as Director
23 June 2008Resigned Sasaki, Koju as Director
4 June 2007Resigned Itakura, Midori as Director
16 May 2005Resigned Ando, Noboru as Director
16 May 2005Resigned Ando, Noboru as Secretary
10 May 2004Resigned Kuwajima, Nozomu as Director
10 May 2004Appointed Shiino, Michitaka as Director
10 May 2004Resigned Fujii, Hirofumi as Director
30 June 2003Resigned Sekiguchi, Masao as Director
19 May 2003Appointed Kitazume, Keiji as Director
14 May 2001Resigned Funatsu, Hideo as Director
14 May 2001Appointed Kuwajima, Nozomu as Director
22 June 1998Resigned Mori, Hideyo as Director
22 May 1998Resigned Shibasaki, Yoshio as Director
22 May 1998Appointed Kimura, Tetsuo as Director
10 November 1997Appointed Fujii, Hirofumi as Director
10 November 1997Resigned Yamada, Kohei as Director
29 May 1997Resigned Kasamaki, Shigeji as Secretary
2 January 1997Resigned Kasamaki, Shigeji as Director
2 January 1997Appointed Ando, Noboru as Secretary
17 May 1996Appointed Ando, Noboru as Director
17 May 1996Appointed Yamada, Kohei as Director
11 May 1994Appointed Shibasaki, Yoshio as Director
11 May 1994Appointed Funatsu, Hideo as Director
27 October 1993Resigned Yakata, Hajime as Director
5 June 1992Appointed Sasaki, Koju as Director