1 November 2025Resigned Hashimoto, Atsushi as Director
1 September 2024Appointed Hashimoto, Atsushi as Director
1 April 2024Resigned Azuma, Hiroshi as Director
1 April 2024Appointed Tada, Toshifumi as Director
1 April 2024Resigned Kawakami, Yasutoshi as Director
31 January 2023Appointed Kim, Jungkeun as Secretary
31 January 2023Resigned Chiba, Masatoshi as Director
31 January 2023Resigned Chiba, Masatoshi as Secretary
12 April 2022Appointed Azuma, Hiroshi as Director
12 April 2022Resigned Kuki, Hideki as Director
1 April 2020Appointed Kuki, Hideki as Director
1 April 2020Appointed Kawakami, Yasutoshi as Director
1 April 2020Resigned Azuma, Hiroshi as Director
1 April 2020Resigned Namba, Junya as Director
10 January 2020Resigned Maeda, Kazutaka as Secretary
10 January 2020Appointed Chiba, Masatoshi as Secretary
1 April 2019Appointed Chiba, Masatoshi as Director
1 April 2019Resigned Yato, Michihisa as Director
1 April 2018Resigned Tanabe, Ryosuke, Managing Director as Director
1 April 2018Resigned Suzuki, Fumio as Director
1 April 2018Appointed Namba, Junya as Director
1 April 2018Appointed Yato, Michihisa as Director
31 August 2017Appointed Maeda, Kazutaka as Secretary
31 August 2017Resigned Durward, Tina Ann as Secretary
1 October 2016Appointed Suzuki, Fumio as Director
1 October 2016Appointed Tanabe, Ryosuke, Managing Director as Director
1 October 2016Appointed Azuma, Hiroshi as Director
30 September 2016Resigned Kambayashi, Noriaki as Director
30 September 2016Resigned Kuki, Hideki as Director
9 August 2016Appointed Durward, Tina Ann as Secretary
29 July 2016Resigned Crawford, William Duncan as Secretary
1 October 2015Appointed Kuki, Hideki as Director
1 October 2015Resigned Kawashima, Kazutaka as Director
1 February 2014Resigned Mikuni, Toshiaki as Director
1 October 2012Appointed Kambayashi, Noriaki as Director
1 October 2012Resigned Tanaka, Eiji as Director
29 March 2012Appointed Kawashima, Kazutaka as Director
29 March 2012Resigned Mogi, Takashi as Director
1 April 2011Resigned Ishida, Hayato as Director
1 April 2011Appointed Mogi, Takashi as Director
1 February 2011Appointed Tanaka, Eiji as Director
1 February 2011Resigned Takahashi, Masami as Director
1 August 2010Appointed Takahashi, Masami as Director
1 August 2010Resigned Murakami, Seiichi as Director
1 August 2010Appointed Ishida, Hayato as Director
1 August 2010Resigned Shimosakon, Akira as Director
19 June 2009Resigned Yanagisawa, Kenichi as Director
19 June 2009Appointed Murakami, Seiichi as Director
1 April 2009Appointed Mikuni, Toshiaki as Director
31 March 2009Resigned Matsuura, Takashi as Director
1 October 2007Appointed Yanagisawa, Kenichi as Director
1 October 2007Resigned Ikoma, Hidenobu, Dr as Director
21 June 2007Resigned Tobe, Akihiro as Director
1 July 2006Resigned Narimatsu, Akihiro, Dr as Director
1 July 2006Appointed Ikoma, Hidenobu, Dr as Director
1 January 2006Appointed Matsuura, Takashi as Director
1 January 2006Resigned Takagi, Takehiro as Director
1 January 2006Appointed Davies, Martin Wyn, Dr as Director
1 July 2005Appointed Shimosakon, Akira as Director
29 June 2005Resigned Kishi, Takayasu as Director
3 December 2004Appointed Narimatsu, Akihiro, Dr as Director
29 June 2004Resigned Murakami, Shu as Director
29 June 2004Appointed Kishi, Takayasu as Director
1 July 2003Appointed Takagi, Takehiro as Director
1 July 2003Appointed Murakami, Shu as Director
30 June 2003Resigned Fujimori, Shinichiro as Director
1 April 2002Resigned Katsuyama, Takashi as Director
22 March 2002Resigned Ono, Akihisa as Director
1 March 2002Appointed Fujimori, Shinichiro as Director
1 October 2001Appointed Katsuyama, Takashi as Director
1 October 2001Appointed Tobe, Akihiro as Director
25 September 2001Appointed Crawford, William Duncan as Secretary
25 September 2001Resigned Mikuni, Toshiaki as Secretary
8 March 2001Appointed Mikuni, Toshiaki as Secretary
8 March 2001Appointed Ono, Akihisa as Director