28 September 2026Appointed Fuwa, Jun as Director
28 September 2026Resigned Chinda, Shoichi as Director
28 September 2026Resigned Ito, Takaharu as Director
24 July 2025Appointed Ito, Takaharu as Director
24 July 2025Resigned Sakurai, Masao as Director
7 August 2024Appointed Chinda, Shoichi as Director
7 August 2024Resigned Arima, Nobuhiko as Director
7 August 2024Resigned Nakagome, Toshiyoshi as Director
3 August 2023Appointed Arima, Nobuhiko as Director
16 July 2021Resigned Kamata, Kiyoshi as Director
16 July 2021Resigned Mizutani, Noboru as Director
16 July 2021Appointed Nakagome, Toshiyoshi as Director
16 July 2021Appointed Sakurai, Masao as Director
29 December 2017Resigned Yaegashi, Tokiharu as Secretary
21 June 2017Resigned Sato, Toshiyuki as Director
27 May 2016Appointed Yaegashi, Tokiharu as Secretary
27 May 2016Appointed Sato, Toshiyuki as Director
27 May 2016Appointed Kamata, Kiyoshi as Director
27 May 2016Resigned Sakamoto, Yoshihide as Secretary
27 May 2016Appointed Mizutani, Noboru as Director
27 May 2016Resigned Fujii, Masahiro as Director
1 April 2016Resigned Kikugawa, Satoshi as Director
9 July 2015Resigned Jibiki, Shigetaka as Director
9 July 2015Appointed Sakurai, Tetsuo as Director
1 April 2015Appointed Kikugawa, Satoshi as Director
1 April 2015Resigned Umemoto, Shinichi as Director
28 May 2014Appointed Jibiki, Shigetaka as Director
28 May 2014Appointed Fujii, Masahiro as Director
28 May 2014Resigned Akao, Yoshio as Director
28 May 2014Resigned Sakurai, Hideto as Director
9 August 2013Appointed Sakamoto, Yoshihide as Secretary
13 May 2013Appointed Akao, Yoshio as Director
13 May 2013Resigned Komaki, Tetsuo as Director
13 May 2013Resigned Nakamura, Masahiko as Director
1 November 2012Appointed Sakurai, Hideto as Director
1 November 2012Resigned Takeuchi, Hiroshi as Director
1 November 2012Appointed Umemoto, Shinichi as Director
1 November 2012Appointed Komaki, Tetsuo as Director
1 November 2012Appointed Nakamura, Masahiko as Director
1 November 2012Resigned Mizutani, Noboru as Director
1 November 2012Resigned Yamaguchi, Kazufumi as Director
1 November 2012Resigned Araga, Mikio as Director
9 April 2008Resigned Okita, Michitoshi as Secretary
1 June 2007Resigned Hirata, Kinya as Director
1 June 2007Appointed Mizutani, Noboru as Director
2 February 2006Resigned Kimimori, Takero as Director
24 October 2005Appointed Takeuchi, Hiroshi as Director
24 October 2005Appointed Yamaguchi, Kazufumi as Director
24 October 2005Appointed Araga, Mikio as Director
7 September 2005Appointed Okita, Michitoshi as Secretary
7 September 2005Resigned Sakurai, Tetsuo as Secretary
1 July 2004Resigned Hirata, Kinya as Secretary
1 July 2004Appointed Hirata, Kinya as Director
1 July 2004Resigned Yokoyama, Takayuki as Director
1 July 2004Appointed Sakurai, Tetsuo as Secretary
27 September 2003Resigned Yoshikawa, Norihiko as Director
11 July 2003Appointed Hirata, Kinya as Secretary
10 July 2003Resigned Kobayashi, Takanao as Secretary
5 June 2001Appointed Kobayashi, Takanao as Secretary
4 June 2001Resigned Ono, Hiroshi as Secretary
1 April 1996Appointed Yokoyama, Takayuki as Director
1 April 1996Resigned Ohde, Yoshio as Director
1 May 1995Appointed Ono, Hiroshi as Secretary
30 April 1995Resigned Muramatsu, Shinichi as Secretary
1 April 1994Appointed Yoshikawa, Norihiko as Director
1 April 1994Appointed Kimimori, Takero as Director
31 March 1994Resigned Tsutsui, Hiroshi as Director
29 July 1991Resigned Miake, Naukata as Director
31 May 1991Resigned Fukui, Nobuyuki as Director
31 March 1991Resigned Kimura, Kosaku as Director