24 April 2026Appointed Yamada, Hideki as Director
24 April 2026Appointed Arai, Hidehiro as Director
6 April 2026Resigned Akatsuka, Tamon as Director
6 April 2026Resigned Imai, Kozo as Director
6 April 2026Resigned Endo, Yukie as Director
17 April 2025Resigned Asai, Akihiro as Director
17 April 2025Appointed Akatsuka, Tamon as Director
26 February 2025Appointed Terry, Douglas William as Director
26 February 2025Resigned Umehara, Hideshi as Director
31 May 2024Resigned Matsuda, Yasuyuki as Director
1 May 2024Appointed Asai, Akihiro as Director
1 May 2024Appointed Kaibuchi, Narutoshi as Director
1 May 2024Resigned Kubota, Satoshi as Director
21 November 2023Appointed Imai, Kozo as Director
21 November 2023Resigned Inamori, Kojiro as Director
24 April 2023Appointed Inamori, Kojiro as Director
21 April 2023Resigned Goto, Jun as Director
21 April 2023Resigned Shinozaki, Yoshio as Director
21 April 2023Resigned Okada, Hirotaka as Director
21 April 2023Appointed Endo, Yukie as Director
21 April 2023Appointed Kubota, Satoshi as Director
1 July 2021Appointed Terry, Douglas William as Secretary
21 April 2021Resigned Kabumoto, Akira as Director
21 April 2021Appointed Okada, Hirotaka as Director
25 March 2020Appointed Kabumoto, Akira as Director
25 March 2020Resigned Kubota, Tetsuji as Director
25 March 2020Resigned Ota, Toshihiko as Director
8 November 2019Appointed Umehara, Hideshi as Director
8 November 2019Resigned Maekawa, Mikimori as Director
8 November 2019Appointed Matsuda, Yasuyuki as Director
20 August 2018Appointed Shinozaki, Yoshio as Director
20 August 2018Appointed Goto, Jun as Director
20 August 2018Appointed Ota, Toshihiko as Director
20 August 2018Appointed Kubota, Tetsuji as Director
27 July 2018Resigned Horiuchi, Fumihiko as Director
27 July 2018Resigned Sugiyama, Nakaba as Director
27 July 2018Resigned Masutani, Yoshio as Director
26 June 2017Appointed Maekawa, Mikimori as Director
26 June 2017Resigned Shinohara, Takashi as Director
22 May 2015Appointed Sugiyama, Nakaba as Director
22 May 2015Resigned Nishiyama, Hidemi as Director
27 June 2014Resigned Abe, Shigenobu as Director
27 June 2014Appointed Nishiyama, Hidemi as Director
27 February 2013Appointed Shinohara, Takashi as Director
27 February 2013Resigned Suzuki, Kozo as Director
18 June 2012Resigned Imamura, Kazuo as Director
18 June 2012Appointed Horiuchi, Fumihiko as Director
23 May 2011Appointed Masutani, Yoshio as Director
23 May 2011Resigned Hino, Tsuremi as Director
20 July 2009Appointed Suzuki, Kozo as Director
20 July 2009Resigned Horiuchi, Fumihiko as Director
29 September 2008Appointed Horiuchi, Fumihiko as Director
29 September 2008Appointed Imamura, Kazuo as Director
29 September 2008Appointed Hino, Tsuremi as Director
29 September 2008Resigned Matsui, Akira as Director
29 September 2008Resigned Fujiyoshi, Akihiro as Director
29 September 2008Resigned Kawana, Takeshi as Director
22 April 2008Appointed Abe, Shigenobu as Director
26 June 2007Resigned Arita, Kazuo as Director
26 April 2007Appointed Matsui, Akira as Director
26 April 2007Resigned Shimazaki, Kiyoshi as Director
6 October 2006Resigned Fukumoto, Masahiko as Director
6 October 2006Appointed Fujiyoshi, Akihiro as Director
29 June 2005Appointed Kawana, Takeshi as Director
29 June 2005Resigned Tachikawa, Naoomi as Director
8 December 2004Appointed Shimazaki, Kiyoshi as Director
8 December 2004Resigned Sinozaki, Suguru as Director
22 November 2004Appointed Fukumoto, Masahiko as Director
22 November 2004Resigned Seko, Toshifumi as Director
13 May 2004Resigned Kitano, Shinighi as Director
13 May 2004Appointed Seko, Toshifumi as Director
13 May 2004Appointed Sinozaki, Suguru as Director
13 May 2004Resigned Muranaga, Asao as Director
16 July 2002Appointed Muranaga, Asao as Director
16 July 2002Resigned Ishii, Shunji as Director
1 October 2001Appointed Kitano, Shinighi as Director
1 October 2001Appointed Tachikawa, Naoomi as Director
1 October 2001Resigned Okada, Yoshihisa as Director
1 October 2001Resigned Yoshida, Masao as Director
1 July 2001Resigned Sentsui, Sintado as Director
1 July 2001Appointed Ishii, Shunji as Director
1 July 2000Resigned Sato, Nurimasa as Director
1 July 2000Appointed Yoshida, Masao as Director
1 July 2000Resigned Shimizu, Akira as Director
16 May 2000Appointed Arita, Kazuo as Director
16 May 2000Resigned Iwamoto, Ryuji as Director
29 June 1999Appointed Iwamoto, Ryuji as Director
29 June 1999Appointed Sentsui, Sintado as Director
29 June 1999Resigned Sentsui, Sintado as Director
29 June 1999Resigned Kirishima, Ichiro as Director
15 July 1998Appointed Okada, Yoshihisa as Director
15 July 1998Appointed Kirishima, Ichiro as Director
15 July 1998Resigned Koizumi, Tatsuya as Director
15 July 1998Appointed Sato, Nurimasa as Director
15 July 1998Appointed Shimizu, Akira as Director
15 July 1998Resigned Li, Luksun, Dr as Director
15 July 1998Resigned Okubo, Katsuhiko, Dr as Director
15 June 1998Resigned Takahashi, Hiroshi as Secretary
15 June 1998Resigned Takahashi, Hiroshi as Director
1 June 1998Appointed Sentsui, Sintado as Director
1 July 1997Appointed Okubo, Katsuhiko, Dr as Director
1 July 1997Resigned Inao, Shozo as Director
16 June 1996Resigned Takagi, Seizo, Dr as Director
16 June 1996Resigned Wada, Akira as Director
16 June 1996Resigned Takagi, Seizo, Dr as Secretary
16 June 1996Appointed Takahashi, Hiroshi as Secretary
4 June 1996Appointed Takahashi, Hiroshi as Director
1 February 1996Appointed Li, Luksun, Dr as Director
29 June 1995Appointed Koizumi, Tatsuya as Director
29 June 1995Resigned Kikuchi, Koji as Director
29 June 1995Resigned Murata, Kanehiko as Director
29 June 1995Appointed Inao, Shozo as Director
29 June 1994Appointed Kikuchi, Koji as Director
29 June 1994Resigned Hosokawa, Kouichi, Dr as Director
8 July 1993Appointed Murata, Kanehiko as Director
8 July 1993Resigned Inao, Shozo as Director
26 March 1992Appointed Wada, Akira as Director
13 December 1991Appointed Hosokawa, Kouichi, Dr as Director
13 December 1991Appointed Takagi, Seizo, Dr as Secretary
13 December 1991Appointed Takagi, Seizo, Dr as Director
13 December 1991Appointed Inao, Shozo as Director