1 September 2026Appointed Yoshida, Taku as Director
1 September 2026Resigned Uehara, Yukihiro as Director
1 April 2026Appointed Ohsato, Ken as Director
1 April 2026Resigned Kawanishi, Noriyuki as Director
1 November 2025Appointed Saito, Atsushi as Secretary
31 October 2025Resigned Nakatsuji, Toshitane as Secretary
1 April 2024Appointed Uehara, Yukihiro as Director
1 April 2024Resigned Yamagishi, Makoto as Director
1 September 2023Appointed Bambury, Thomas as Director
1 September 2023Appointed Nakatsuji, Toshitane as Secretary
1 April 2022Resigned Banno, Tatsuya as Director
1 April 2022Appointed Kawanishi, Noriyuki as Director
1 April 2022Appointed Yamagishi, Makoto as Director
1 April 2022Resigned Hamasuna, Toru as Director
30 June 2021Resigned Sato, Kiminori, Dr as Director
30 June 2021Appointed Banno, Tatsuya as Director
30 June 2021Resigned Hosoya, Hideyuki as Director
30 June 2021Appointed Hamasuna, Toru as Director
30 June 2021Resigned Saita, Akira as Director
1 April 2019Appointed Sato, Kiminori, Dr as Director
1 April 2019Resigned Kitajima, Takeaki as Director
1 April 2019Resigned Kimpara, Masaaki as Director
21 September 2017Resigned Higgins, Roy as Director
1 June 2016Appointed Saita, Akira as Director
1 April 2015Appointed Higgins, Roy as Director
1 April 2015Appointed Kimpara, Masaaki as Director
1 April 2015Appointed Hosoya, Hideyuki as Director
1 April 2015Resigned Fukushima, Keiichi as Director
1 April 2015Resigned Nomura, Yoshikazu as Director
1 April 2014Appointed Kitajima, Takeaki as Director
1 April 2014Resigned Kuge, Tadatoshi as Director
1 April 2013Appointed Fukushima, Keiichi as Director
1 April 2013Resigned Kosone, Naoto as Director
1 April 2013Resigned Sugiyama, Noboru as Director
1 April 2013Appointed Nomura, Yoshikazu as Director
1 April 2011Appointed Kosone, Naoto as Director
1 April 2011Resigned Kumakawa, Yasuo as Director
1 April 2010Appointed Kuge, Tadatoshi as Director
1 April 2010Resigned Sato, Takashi as Director
1 April 2009Appointed Kumakawa, Yasuo as Director
15 July 2007Resigned Hashimoto, Mitsuji as Director
15 July 2007Resigned Sato, Yoshiaki as Director
30 October 2006Appointed Sugiyama, Noboru as Director
30 October 2006Resigned Kato, Takamasa as Director
1 April 2005Appointed Sato, Takashi as Director
1 April 2005Appointed Hashimoto, Mitsuji as Director
1 April 2005Appointed Kato, Takamasa as Director
31 March 2005Resigned Aoki, Tsutomu as Director
31 March 2005Resigned Kuroda, Masatoshi as Director
31 March 2005Resigned Kawabata, Masao as Director
8 October 2002Appointed Aoki, Tsutomu as Director
8 October 2002Resigned Naruse, Toshihde as Director
1 April 2002Appointed Sato, Yoshiaki as Director
31 March 2002Resigned Nagahama, Yoichi as Director
31 March 2002Resigned Sasaki, Tadashi as Director
29 June 2001Appointed Kuroda, Masatoshi as Director
29 June 2001Resigned Kashiwase, Katsumi as Director
19 November 1999Appointed Nagahama, Yoichi as Director
19 November 1999Resigned Kusano, Masahiro as Director
19 November 1999Appointed Kawabata, Masao as Director
19 November 1999Resigned Shibuta, Tetsuo as Director
1 September 1997Appointed Naruse, Toshihde as Director
1 September 1997Resigned Tsujikawa, Akira as Director
1 September 1997Appointed Kusano, Masahiro as Director
1 September 1997Resigned Kawabata, Masao as Director
27 June 1996Appointed Tsujikawa, Akira as Director
27 June 1996Resigned Nabeta, Mamoru as Director
14 June 1996Appointed Kashiwase, Katsumi as Director
14 June 1996Resigned Watanabe, Atashi as Director
1 July 1995Resigned Kobayashi, Norimasa as Director
1 July 1995Appointed Shibuta, Tetsuo as Director
10 November 1994Resigned Yashiro, Ryuji as Director
10 November 1994Resigned Takeuchi, Kiichiro as Director
10 November 1994Appointed Nabeta, Mamoru as Director
10 November 1994Appointed Kawabata, Masao as Director
19 May 1994Resigned Thring, Christopher Charles as Secretary
29 October 1993Resigned Voller, Ian as Director
13 July 1993Appointed Voller, Ian as Director
1 October 1991Appointed Thring, Christopher Charles as Secretary