5 June 2026Resigned Sakamoto, Mitsuhiro as Director
5 June 2026Appointed Goto, Tsuyoshi as Director
30 September 2023Resigned Sasaki, Takeshi as Director
30 September 2023Appointed Noguchi, Hiroshi as Director
30 September 2023Appointed Sakamoto, Mitsuhiro as Director
30 September 2023Resigned Fujikawa, Yoshiaki as Director
30 June 2021Appointed Fujikawa, Yoshiaki as Director
30 June 2021Resigned Sato, Yasuo as Director
30 April 2019Resigned Davies, Andrew as Secretary
30 April 2019Appointed Davies, Andrew as Secretary
30 September 2013Resigned Okumura, Etsuo as Director
1 December 2011Appointed Sasaki, Takeshi as Director
1 December 2011Resigned Matsunaga, Yukio as Director
31 May 2011Resigned Sato, Gaku as Secretary
16 July 2010Appointed Sato, Yasuo as Director
16 July 2010Resigned Horiuchi, Shunsuke as Director
18 December 2009Resigned Matsunaga, Ryo as Director
18 December 2009Appointed Okumura, Etsuo as Director
1 May 2009Resigned Sakai, Masashi as Director
1 May 2009Appointed Matsunaga, Yukio as Director
2 May 2008Appointed Horiuchi, Shunsuke as Director
26 June 2007Appointed Sakai, Masashi as Director
26 June 2007Resigned Aikawa, Kiyoshi as Director
2 May 2006Resigned Ishizawa, Hiroyuki as Director
12 January 2006Appointed Matsunaga, Ryo as Director
12 January 2006Resigned Takei, Ryosuke as Director
24 June 2005Appointed Aikawa, Kiyoshi as Director
24 June 2005Resigned Nishiwaki, Fumio as Director
1 June 2005Resigned Sato, Toru as Secretary
1 June 2005Appointed Sato, Gaku as Secretary
28 June 2004Resigned Itoigawa, Jun as Director
1 April 2004Appointed Nishiwaki, Fumio as Director
1 April 2004Resigned Tamagawa, Masumi as Director
26 June 2003Resigned Okumoto, Yozo as Director
26 June 2003Appointed Tamagawa, Masumi as Director
25 June 2002Appointed Okumoto, Yozo as Director
25 June 2002Resigned Seiki, Kunio as Director
19 January 2001Appointed Takei, Ryosuke as Director
19 January 2001Resigned Kono, Michiaki as Director
7 June 2000Appointed Sato, Toru as Secretary
19 May 2000Resigned Nagata, Noboru as Director
19 May 2000Appointed Itoigawa, Jun as Director
5 August 1998Appointed Ishizawa, Hiroyuki as Director
17 July 1998Resigned Hashimoto, Nagahide as Director
27 June 1997Appointed Seiki, Kunio as Director
27 June 1997Resigned Okabe, Susumu as Director
3 June 1996Resigned Seta, Mitsuo as Director
3 June 1996Appointed Hashimoto, Nagahide as Director
1 June 1996Resigned Hyodo, Akihiro as Director
28 June 1995Appointed Nagata, Noboru as Director
28 June 1995Resigned Nochiide, Mitsuru as Director
15 August 1994Resigned Okumura, Etsuo as Director
11 July 1994Resigned Suzumura, Kunimasa as Director
11 July 1994Appointed Seta, Mitsuo as Director
25 April 1994Resigned Ishihara, Hideo as Director
25 April 1994Appointed Okabe, Susumu as Director
30 April 1992Appointed Ishihara, Hideo as Director
30 April 1992Appointed Suzumura, Kunimasa as Director
30 April 1992Resigned Yawato, Teruo as Director