1 April 2022Resigned Ono, Akihiko as Director
1 April 2021Appointed Tanaka, Toshiaki as Director
1 April 2021Appointed Hinooka, Yutaka as Director
1 April 2021Resigned Takahashi, Shizuo as Director
1 April 2021Resigned Maruyama, Takahashi as Director
31 December 2019Appointed Maruyama, Takahashi as Director
31 December 2019Appointed Ono, Akihiko as Director
31 March 2019Appointed Takahashi, Shizuo as Director
31 March 2019Resigned Tanabe, Masahiro as Director
23 June 2015Appointed Hashimoto, Takeshi as Director
21 June 2013Appointed Ikeda, Junichiro as Director
21 June 2013Appointed Tanabe, Masahiro as Director
21 June 2013Resigned Aoto, Shugo as Director
21 June 2013Resigned Shishido, Toshitaka as Director
1 July 2012Appointed Aoto, Shugo as Director
1 July 2012Appointed Shishido, Toshitaka as Director
1 July 2012Resigned Takemura, Osamu as Director
1 July 2010Resigned Tomokuni, Hachiro as Director
1 July 2010Resigned Kawabata, Minoru as Director
1 July 2010Resigned Temporin, Susumu as Director
1 July 2010Resigned Ishii, Makoto as Director
1 July 2010Resigned Miyazaki, Toru as Director
1 July 2010Resigned Fujiwara, Takanobu as Director
1 July 2010Resigned Kitade, Shoji as Director
1 July 2010Resigned Hirakawa, Masayuki as Director
29 June 1994Appointed Takemura, Osamu as Director
29 June 1994Appointed Kawabata, Minoru as Director
26 June 1992Appointed Fujiwara, Takanobu as Director
26 June 1992Appointed Hirakawa, Masayuki as Director
27 June 1991Appointed Kitade, Shoji as Director
27 June 1991Appointed Miyazaki, Toru as Director
11 July 1990Appointed Ishii, Makoto as Director
3 November 1982Appointed Tomokuni, Hachiro as Director
7 September 1981Appointed Temporin, Susumu as Director