27 June 2026Resigned Yano, Hideki as Director
27 June 2026Appointed Saito, Masaru as Director
27 June 2026Appointed Sasaki, Manabu as Director
27 June 2026Resigned Umemoto, Itsuro as Director
27 June 2026Appointed Imachi, Tomoyuki as Director
24 June 2025Appointed Fukuyama, Toru as Director
24 June 2025Resigned Sugimoto, Ichiro as Director
29 June 2024Appointed Hirama, Toshiyuki as Director
29 June 2024Resigned Kasebayashi, Yoshinobu as Director
24 June 2023Resigned Yoshinaga, Masayuki as Director
24 June 2023Resigned Minagawa, Takeshi as Director
24 June 2023Appointed Masegi, Shinya as Director
24 June 2023Appointed Kishida, Yoshiki as Director
24 June 2023Appointed Fujino, Kiyomitsu as Director
26 June 2022Resigned Kamizaki, Masanori as Director
25 June 2022Appointed Yano, Hideki as Director
25 June 2022Resigned Watanabe, Yuji as Director
26 June 2021Resigned Takamura, Naoto as Director
26 June 2021Appointed Kasebayashi, Yoshinobu as Director
26 June 2021Resigned Tojitsu, Morio as Director
26 June 2021Appointed Sugimoto, Ichiro as Director
26 June 2021Appointed Yoshinaga, Masayuki as Director
26 June 2021Resigned Miyachi, Hiroji as Director
27 June 2020Resigned Komatsu, Toshiki as Director
27 June 2020Appointed Minagawa, Takeshi as Director
27 June 2020Resigned Nakamura, Tsuneo as Director
27 June 2020Appointed Umemoto, Itsuro as Director
27 June 2020Resigned Omuro, Masao as Director
27 June 2020Resigned Kawabata, Umanosuke as Director
30 June 2019Appointed Miyachi, Hiroji as Director
30 June 2019Appointed Sakai, Katsuhiko as Director
29 June 2019Appointed Takamura, Naoto as Director
29 June 2019Appointed Kamizaki, Masanori as Director
25 June 2016Appointed Nakamura, Tsuneo as Director
25 June 2016Resigned Nishizawa, Yutaka as Director
31 October 2015Appointed Tojitsu, Morio as Director
31 October 2015Resigned Matsunaga, Tsutomu as Director
31 October 2015Appointed Watanabe, Yuji as Director
31 October 2015Resigned Tani, Sadafumi as Director
28 June 2014Appointed Kawabata, Umanosuke as Director
29 June 2013Resigned Matsuzaki, Hideki as Director
30 June 2012Appointed Komatsu, Toshiki as Director
30 June 2012Appointed Matsunaga, Tsutomu as Director
30 June 2012Appointed Omuro, Masao as Director
30 June 2012Resigned Sameshima, Tadao as Director
30 June 2012Resigned Kayamori, Tetsuya as Director
26 June 2010Resigned Miyatake, Toshiyuki as Director
26 June 2010Appointed Sameshima, Tadao as Director
26 June 2010Appointed Tani, Sadafumi as Director
27 June 2009Resigned Amasaka, Harutoshi as Director
27 June 2009Appointed Matsuzaki, Hideki as Director
27 June 2009Resigned Izumi, Hiroshi as Director
28 June 2008Appointed Nishizawa, Yutaka as Director
28 June 2008Resigned Kishida, Ikuhiro as Director
28 June 2008Resigned Hirayama, Masato as Director
28 June 2008Appointed Miyatake, Toshiyuki as Director
28 June 2008Resigned Wakabayashi, Seizo as Director
28 June 2008Appointed Kayamori, Tetsuya as Director
30 June 2007Appointed Amasaka, Harutoshi as Director
30 June 2007Resigned Okita, Keiryo as Director
24 June 2006Appointed Izumi, Hiroshi as Director
24 June 2006Appointed Hirayama, Masato as Director
24 June 2006Resigned Yamaki, Hiroyuki as Director
24 June 2006Resigned Mitsuhashi, Seiji as Director
24 June 2006Resigned Sakakibara, Jyun as Director
26 June 2004Appointed Wakabayashi, Seizo as Director
26 June 2004Resigned Sasaki, Yoshihiro as Director
26 June 2004Appointed Mitsuhashi, Seiji as Director
26 June 2004Resigned Amano, Iwao as Director
26 June 2004Appointed Okita, Keiryo as Director
26 June 2004Resigned Nakajima, Hiroshi as Director
26 February 2004Appointed Kishida, Ikuhiro as Director
26 February 2004Resigned Eguchi, Nobuyuki as Director
29 June 2002Appointed Den, Yoshiyuki as Director
29 June 2002Appointed Eguchi, Nobuyuki as Director
29 June 2002Appointed Yamaki, Hiroyuki as Director
29 June 2002Appointed Nakajima, Hiroshi as Director
29 June 2002Resigned Ota, Tsuguhisa as Director
29 June 2002Resigned Oguro, Kuniji as Director
29 June 2002Resigned Den, Yoshiyuki as Director
29 June 2002Resigned Sugiura, Masaaki as Director
29 June 2002Resigned Murakami, Masatoshi as Director
29 June 2002Appointed Sasaki, Yoshihiro as Director
27 June 1998Appointed Amano, Iwao as Director
27 June 1998Resigned Nishida, Yuichiro as Director
27 June 1998Appointed Sugiura, Masaaki as Director
27 June 1998Resigned Hasegawa, Kazuaki as Director
27 June 1998Appointed Oguro, Kuniji as Director
27 June 1998Resigned Fujiwara, Hiroshi as Director
29 June 1996Resigned Saeki, Yasuhiko as Director
29 June 1996Resigned Taguchi, Mitsuo as Director
29 June 1996Resigned Maeda, Koichi as Director
29 June 1996Resigned Ohara, Shinichiro as Director
29 June 1996Appointed Nishida, Yuichiro as Director
29 June 1996Appointed Sakakibara, Jyun as Director
29 June 1996Appointed Ota, Tsuguhisa as Director
30 June 1994Resigned Iijima, Teruo as Director
27 June 1992Appointed Hasegawa, Kazuaki as Director
27 June 1992Appointed Fujiwara, Hiroshi as Director
27 June 1992Appointed Ohara, Shinichiro as Director
27 June 1992Appointed Iijima, Teruo as Director
30 June 1990Appointed Saeki, Yasuhiko as Director
25 June 1988Appointed Murakami, Masatoshi as Director
25 June 1988Resigned Miyauchi, Yazaburo as Director
25 June 1988Appointed Taguchi, Mitsuo as Director
30 June 1986Resigned Haraguchi, Kihachi as Director
30 June 1984Appointed Miyauchi, Yazaburo as Director
30 June 1984Resigned Kawaguchi, Tokuro as Director
30 June 1984Resigned Morinaga, Kazuhiko as Director
30 June 1982Appointed Kawaguchi, Tokuro as Director
30 June 1982Appointed Morinaga, Kazuhiko as Director
30 June 1982Appointed Haraguchi, Kihachi as Director
30 June 1982Appointed Maeda, Koichi as Director