20 August 2025Appointed Soda, Tatsufumi as Director
21 July 2025Appointed Kodama, Dai as Director
21 July 2025Resigned Yoshikiyo, Tomoyuki as Director
1 July 2024Resigned Ozaki, Michio as Director
1 July 2024Appointed Nishii, Hiroki as Director
1 February 2021Appointed Nass, Ulrich, Dr as Director
1 July 2020Appointed Yoshikiyo, Tomoyuki as Director
1 July 2020Resigned Suzuki, Shigeyuki as Director
1 July 2020Appointed Ozaki, Michio as Director
1 July 2020Resigned Kamio, Yasuhiro as Director
8 September 2016Appointed Kamio, Yasuhiro as Director
8 September 2016Resigned Matsubara, Masahide as Director
4 December 2014Resigned Komori, Tsutomu as Director
4 December 2014Appointed Suzuki, Shigeyuki as Director
21 October 2013Resigned Keiffer, Franck Claude as Director
21 October 2013Appointed Matsubara, Masahide as Director
25 January 2013Resigned Duning, Ralf Adolf Walter Hermann as Director
25 January 2013Appointed Keiffer, Franck Claude as Director
17 August 2011Resigned Takebe, Yukio as Director
21 August 2009Appointed Komori, Tsutomu as Director
21 August 2009Resigned Tonotsuka, Takashi as Director
21 August 2009Appointed Duning, Ralf Adolf Walter Hermann as Director
10 October 2007Appointed Takebe, Yukio as Director
10 October 2007Appointed Tonotsuka, Takashi as Director
21 September 2006Resigned Coitino, Richard as Director
26 April 2002Resigned Takano, Koichi as Director
1 October 2001Appointed Takano, Koichi as Director
1 May 2001Resigned Nakagawa, Nobutaro as Director
17 August 1998Resigned Constance, William Leonard as Director
14 January 1994Resigned Tazawa, Masami as Secretary
28 October 1993Resigned Kuji, Bunei as Director
1 April 1993Appointed Coitino, Richard as Director
1 April 1993Appointed Nakagawa, Nobutaro as Director