1 April 2026Appointed Suzuki, Yuji as Director
1 April 2025Appointed Karasawa, Jun as Director
1 April 2025Appointed Runkiewicz, Maciej as Director
1 April 2025Resigned Otaka, Hiroyuki as Director
1 April 2024Resigned Kajiyama, Hideyoshi as Director
1 April 2024Resigned Matsuzaki, Koichi as Director
1 April 2024Appointed Otaka, Hiroyuki as Director
29 November 2023Resigned Takei, Hiroshi as Secretary
29 November 2023Appointed Ishida, Katsusuke as Secretary
1 April 2022Appointed Kajiyama, Hideyoshi as Director
1 April 2022Resigned Ashida, Tatsuya as Director
1 April 2021Appointed Matsuzaki, Koichi as Director
1 March 2020Resigned Sawa, Hiroaki as Director
1 March 2020Appointed Ashida, Tatsuya as Director
1 August 2018Resigned Omata, Teiji as Director
1 August 2018Appointed Sawa, Hiroaki as Director
5 April 2018Resigned Matsukawa, Atsushi as Director
5 April 2018Appointed Takei, Hiroshi as Secretary
5 April 2018Resigned Izumitani, Hiroshi as Director
5 April 2018Resigned Yatsuzuka, Yo as Secretary
6 April 2017Appointed Matsukawa, Atsushi as Director
2 June 2016Appointed Omata, Teiji as Director
2 June 2016Resigned Funakoshi, Kunikiyo as Director
29 May 2015Appointed Funakoshi, Kunikiyo as Director
29 May 2015Resigned Sugimoto, Koji as Director
27 August 2013Appointed Yatsuzuka, Yo as Secretary
30 May 2013Appointed Sugimoto, Koji as Director
30 May 2013Resigned Tatsuno, Hiroshi as Director
30 May 2013Resigned Oura, Koji as Director
8 June 2012Appointed Tatsuno, Hiroshi as Director
5 July 2010Resigned Iwasaki, Masanori as Director
5 July 2010Appointed Oura, Koji as Director
17 August 2008Appointed Izumitani, Hiroshi as Director
17 August 2008Appointed Iwasaki, Masanori as Director