17 August 2026Appointed Yamakawa, Yoshiki as Director
2 June 2025Appointed Akiyama, Masataka as Director
2 June 2025Resigned Kimura, Yoshiki as Director
4 May 2023Appointed Kimura, Yoshiki as Director
24 March 2017Resigned Tada, Takafumi as Secretary
24 March 2017Appointed Denham, Neil Llewellyn as Secretary
1 August 2012Resigned Okada, Junji as Director
21 October 2011Appointed Tada, Takafumi as Secretary
21 October 2011Resigned Morishima, Toshiyuki as Secretary
13 April 2010Appointed Okada, Junji as Director
13 April 2010Resigned Nakajima, Shigehiro as Director
31 May 2007Appointed Nakajima, Shigehiro as Director
31 May 2007Resigned Kosaka, Masahiro as Director
10 November 2006Resigned Komori, Shigetaka as Director
10 November 2006Appointed Kosaka, Masahiro as Director
27 July 2005Appointed Morishima, Toshiyuki as Secretary
27 July 2005Resigned Iguchi, Ryo as Secretary
10 November 2003Resigned Nakamura, Toshio as Director
1 August 2003Appointed Komori, Shigetaka as Director
1 August 2003Resigned Ohnishi, Minoru as Director
17 April 1998Appointed Iguchi, Ryo as Secretary
17 April 1998Resigned Takahashi, Jun as Secretary
15 December 1995Appointed Nakamura, Toshio as Director
15 December 1995Resigned Takekoshi, Shozo as Director