17 June 2019Resigned Onishi, Satoshi as Director
1 April 2018Appointed Tamura, Akihiko as Director
20 June 2012Resigned Hirose, Fumisato as Director
1 April 2012Appointed Wallace, John Scott as Director
31 May 2009Resigned Pllu, Adrian Sawers as Director
1 May 2005Resigned Enoki, Shigeo as Director
1 May 2005Appointed Onishi, Satoshi as Director
6 June 2003Resigned Iwashita, Isao as Director
1 February 2002Appointed Enoki, Shigeo as Director
31 January 2002Resigned Miki, Katsuhiko as Director
1 July 2001Resigned Demizu, Kiyoshi as Director
1 February 2001Resigned Akado, Seiichiro as Director
1 July 2000Resigned Okada, Osamu as Director
1 July 2000Appointed Ito, Tatsuo as Director
1 April 2000Appointed Miki, Katsuhiko as Director
1 April 2000Appointed Akado, Seiichiro as Director
31 January 2000Resigned Akiyama, Kenji, Dr as Director
25 June 1999Appointed Demizu, Kiyoshi as Director
25 June 1999Resigned Arai, Hiroshi as Director
1 January 1999Appointed Pllu, Adrian Sawers as Director
31 December 1998Resigned De Vries, Henri Maurice as Director
1 December 1998Appointed Akiyama, Kenji, Dr as Director
30 November 1998Resigned Shirai, Shozo as Director
1 September 1998Appointed Iwashita, Isao as Director
29 June 1998Resigned Kubo, Katsunori as Director
1 December 1997Appointed Hirose, Fumisato as Director
1 June 1995Resigned Iwashita, Isao as Director
1 July 1994Resigned Nomura, Koichi as Director
1 July 1994Appointed Arai, Hiroshi as Director
1 November 1993Appointed Kubo, Katsunori as Director
21 June 1993Resigned Hanyo, Akira as Director
1 January 1993Appointed Shirai, Shozo as Director