9 June 2025Resigned Suzuki, Yusuke as Director
27 May 2025Appointed Seimiya, Takashi as Director
5 June 2023Appointed Ono, Tetsuro as Director
1 June 2023Resigned Kato, Tomoo as Director
16 May 2023Resigned Gould, Timothy Peter as Director
5 November 2019Appointed Suzuki, Yusuke as Director
5 November 2019Resigned Watanabe, Shunichi as Director
23 June 2017Appointed Gould, Timothy Peter as Director
1 June 2017Resigned Watanabe, Shigeru as Director
1 June 2017Appointed Watanabe, Shunichi as Director
17 June 2016Appointed Kato, Tomoo as Director
17 June 2016Resigned Ota, Akio as Director
1 April 2016Resigned Kubo, Hiroaki as Director
1 April 2016Appointed Watanabe, Shigeru as Director
27 June 2013Resigned Okimuro, Toshiharu as Director
27 June 2013Appointed Ota, Akio as Director
2 April 2012Appointed Kubo, Hiroaki as Director
2 April 2012Resigned Watanabe, Shunichi as Director
29 June 2011Resigned Moriya, Koji as Director
29 June 2011Appointed Okimuro, Toshiharu as Director
21 July 2009Appointed Yamashita, Kazuyuki as Director
21 July 2009Resigned Nakamura, Hiroshi as Director
27 June 2008Appointed Watanabe, Shunichi as Director
27 June 2008Resigned Fujii, Hiroshi as Director
28 June 2007Resigned Takeichi, Koichi as Director
29 June 2006Appointed Moriya, Koji as Director
29 June 2006Resigned Hachiya, Kiyotaka as Director
28 August 2003Resigned Kashio, Kazuo as Director
4 January 2003Resigned Cowling, John Gordon as Director
27 June 2002Appointed Hachiya, Kiyotaka as Director
27 June 2002Resigned Onoe, Shinichi as Director
1 December 2001Appointed Onoe, Shinichi as Director
1 December 2001Resigned Suzuki, Yozo as Director
21 December 2000Resigned Onoe, Shinichi as Director
21 December 2000Appointed Suzuki, Yozo as Director
29 June 2000Appointed Takeichi, Koichi as Director
29 June 2000Resigned Tsuda, Kazumi as Director
29 June 2000Appointed Nakamura, Hiroshi as Director
29 June 2000Resigned Oyama, Shigeto as Director
1 December 1999Resigned Kato, Kenji as Director
1 December 1999Appointed Fujii, Hiroshi as Director
26 June 1998Resigned Tameguchi, Mitsuru as Director
26 June 1998Appointed Tsuda, Kazumi as Director
26 June 1998Appointed Kato, Kenji as Director
30 June 1995Appointed Onoe, Shinichi as Director
30 June 1995Resigned Shimizu, Akira as Director
1 April 1994Appointed Tameguchi, Mitsuru as Director
31 March 1994Resigned Date, Kiyoshi as Director
1 June 1993Appointed Oyama, Shigeto as Director
1 June 1993Resigned Kitano, Shunro as Director
1 June 1993Appointed Cowling, John Gordon as Director
1 June 1993Appointed Shimizu, Akira as Director
31 May 1993Resigned Rayner, Richard George as Director