1 October 2025Resigned Takai, Kenichi as Director
1 October 2025Appointed Harasaki, Kazuhiko as Director
31 January 2023Resigned Ueno, Tsukasa as Secretary
31 January 2023Appointed Mizuguchi, Hironori as Secretary
31 January 2023Appointed Mizuguchi, Hironori as Director
31 January 2023Resigned Ueno, Tsukasa as Director
1 July 2022Appointed Takai, Kenichi as Director
30 June 2022Resigned Ito, Kenichi as Director
28 June 2018Resigned Kawabata, Hisashi as Director
28 June 2018Appointed Ueno, Tsukasa as Secretary
28 June 2018Resigned Kawabata, Hisashi as Secretary
28 June 2018Appointed Ito, Kenichi as Director
28 June 2018Resigned Watanabe, Nozomu as Director
28 June 2018Appointed Ueno, Tsukasa as Director
12 June 2013Resigned Aoki, Takahiro as Director
12 June 2013Appointed Kawabata, Hisashi as Secretary
12 June 2013Appointed Kawabata, Hisashi as Director
12 June 2013Appointed Watanabe, Nozomu as Director
12 June 2013Resigned Aoki, Takahiro as Secretary
12 June 2013Resigned Hashimoto, Kazuya as Director
28 April 2009Resigned Takaoka, Minoru as Director
28 April 2009Appointed Hashimoto, Kazuya as Director
28 April 2009Appointed Aoki, Takahiro as Director
28 April 2009Appointed Aoki, Takahiro as Secretary
28 April 2009Resigned Endo, Nobuhiro, Doctor as Director
28 April 2009Resigned Taya, Kunihiko as Secretary
1 May 2008Appointed Takaoka, Minoru as Director
1 May 2008Resigned Taya, Kunihiko as Director
17 April 2006Appointed Endo, Nobuhiro, Doctor as Director
17 April 2006Resigned Kuki, Takakuni as Director
1 April 2004Appointed Taya, Kunihiko as Secretary
1 April 2004Resigned Ryu, Toshihiko as Director
1 April 2004Appointed Taya, Kunihiko as Director
1 April 2004Resigned Ryu, Toshihiko as Secretary
28 October 2003Appointed Kuki, Takakuni as Director
10 October 2003Resigned Chisholm, James Alan as Director
11 September 2000Resigned Kikumoto, Yoshifumi as Secretary
11 September 2000Resigned Matsuo, Yoshitake as Director
11 September 2000Appointed Ryu, Toshihiko as Secretary
11 September 2000Resigned Kikumoto, Yoshifumi as Director
11 September 2000Appointed Ryu, Toshihiko as Director
11 September 2000Appointed Chisholm, James Alan as Director
26 June 1998Resigned Shimomura, Fumihiko as Secretary
26 June 1998Appointed Kikumoto, Yoshifumi as Secretary
26 June 1998Appointed Matsuo, Yoshitake as Director
26 June 1998Resigned Shimomura, Fumihiko as Director
30 March 1998Appointed Shimomura, Fumihiko as Director
26 January 1998Appointed Shimomura, Fumihiko as Secretary
26 January 1998Appointed Kikumoto, Yoshifumi as Director