1 October 2025Appointed Iwamoto, Shinichi as Director
1 April 2023Appointed Hirao, Yoshiaki as Director
1 April 2023Resigned Takashima, Jiro as Director
22 March 2023Appointed Sanada, Tetsuaki as Secretary
22 March 2023Resigned Brooks, Tony as Secretary
31 March 2019Resigned Surman, David John as Director
25 January 2019Resigned Kosuke, Nakao as Director
25 January 2019Resigned Yamsmoto, Yasunori as Director
25 January 2019Appointed Takashima, Jiro as Director
5 February 2018Appointed Kosuke, Nakao as Director
27 June 2013Appointed Yamsmoto, Yasunori as Director
12 April 2010Appointed Brooks, Tony as Secretary
29 June 2005Resigned Ando, Osamu as Director
29 June 2005Appointed Surman, David John as Director
27 June 2003Resigned Kadota, Toshimi as Director
1 April 2003Appointed Kadota, Toshimi as Director
1 April 2002Resigned Imamura, Naoki as Director
29 June 2001Resigned Hara, Tasuku as Director
1 October 2000Appointed Ando, Osamu as Director
1 October 2000Resigned Takimoto, Shingo as Director
27 June 1998Resigned Soejima, Hiroyoshi as Director
27 June 1998Appointed Imamura, Naoki as Director
27 June 1998Resigned Ishida, Yasuo as Director
28 June 1997Resigned Matsumoto, Shingo as Director
21 January 1997Resigned Kakinuma, Shigemasa as Director
21 July 1996Resigned Onose, Soju as Director
28 June 1996Appointed Hara, Tasuku as Director
28 June 1996Resigned Koya, Takayoshi as Director
28 June 1996Appointed Kakinuma, Shigemasa as Director
28 June 1996Appointed Matsumoto, Shingo as Director
30 June 1995Appointed Koya, Takayoshi as Director
30 June 1995Resigned Hattori, Shigehiko as Director
30 June 1995Resigned Kawabe, Yasutsugu as Director
30 June 1995Appointed Takimoto, Shingo as Director
1 February 1995Resigned Kawashima, Fumio as Director
1 October 1994Appointed Ishida, Yasuo as Director
30 June 1994Appointed Onose, Soju as Director
30 June 1994Appointed Kawabe, Yasutsugu as Director
30 June 1994Appointed Hattori, Shigehiko as Director
29 June 1993Resigned Udagawa, Toshaki as Director
29 June 1993Resigned Kurita, Tahashi as Director