| YATSUZUKA, Yo ACTIVE | Secretary | 27 Aug 2013 | | | | Hill House, 1 Little New Street, London, EC4A 3TR |
| ICHIKI, Hiroto ACTIVE | Director | 29 May 2015 | | England | June 1962 | Hill House, 1 Little New Street, London, EC4A 3TR |
| YATSUZUKA, Yo ACTIVE | Director | 06 Jun 2014 | | United Kingdom | March 1974 | Hill House, 1 Little New Street, London, EC4A 3TR |
| AOKI, Noburo RESIGNED | Secretary | 15 Jun 2006 | 31 May 2007 | | | 34 Hillcroft Crescent, Ealing, London, W5 2SQ |
| AOKI, Noburo RESIGNED | Secretary | 28 Sep 2000 | 29 Jun 2001 | | | 34 Hillcroft Crescent, Ealing, London, W5 2SQ |
| BEGLIN, Jane Elizabeth RESIGNED | Secretary | 08 Mar 1996 | 22 Nov 1999 | | | 117 Salcott Road, London, SW11 6DG |
| BIBBY, Simon Nicholas RESIGNED | Secretary | 22 Nov 1999 | 28 Sep 2000 | | | 2 Inglewood Copse, Bromley, Kent, BR1 2BB |
| SUGIURA, Shinji RESIGNED | Secretary | 01 Jul 1994 | 08 Mar 1996 | | | Flat 15, 6/7 Vicarage Gate, London, W8 |
| WALTERS, Geoffrey Paul RESIGNED | Secretary | 29 Jun 2001 | 15 Jun 2006 | | | 31 Holland Park, London, W11 3TA |
| YAJIMA, Akira RESIGNED | Secretary | 31 May 2007 | 27 Aug 2013 | | | 55, Baker Street, London, W1U 8EW, United Kingdom |
| YOSHIDA, Fujio RESIGNED | Secretary | | 01 Jul 1994 | | | 6 Marlborough Hill, London, NW8 0NN |
| AOKI, Noburo RESIGNED | Director | 03 Mar 1999 | 31 May 2007 | | May 1956 | 34 Hillcroft Crescent, Ealing, London, W5 2SQ |
| BARKER, Richard Arthur RESIGNED | Director | 03 Mar 1999 | 21 Oct 2004 | England | November 1953 | Chevington House, The Square Yapham, York, Yorkshire, YO42 1PJ |
| EVANS, David Clark RESIGNED | Director | 25 Feb 2005 | 15 Jun 2006 | England | October 1946 | Lyle House, 67 Marsham Way, Gerrards Cross, Buckinghamshire, SL9 8AW |
| FERNANDES, Milton Anthony RESIGNED | Director | 01 Aug 1997 | 30 Apr 1999 | United Kingdom | December 1961 | Wisteria House, 67 Kingston Lane, Teddington, Middlesex, TW11 9HN |
| FLETCHER, Michael Englishby RESIGNED | Director | 01 Jul 1998 | 29 Jun 1999 | | March 1949 | 446 Milton Road, Cambridge, CB4 1ST |
| FUKUYAMA, Masafumi RESIGNED | Director | 15 Jun 2006 | 05 Jul 2010 | Japan | November 1947 | Grove House, 248a Marylebone Road, London, NW1 6JZ |
| HARADA, Koji RESIGNED | Director | 01 Jul 1994 | 08 Mar 1996 | | December 1948 | 7 Grendon Gardens, Wembley, Middlesex, HA9 9ND |
| HOSHINO, Hiroaki RESIGNED | Director | 15 Jun 2006 | 05 Jul 2010 | Japan | November 1941 | Grove House, 248a Marylebone Road, London, NW1 6JZ |
| IIZAWA, Hiroaki RESIGNED | Director | 08 Jun 2012 | 29 May 2015 | United Kingdom | January 1969 | 55, Baker Street, London, W1U 8EW, United Kingdom |
| INOUE, Takeshi RESIGNED | Director | 01 Jul 1994 | 18 Jun 1998 | | July 1945 | Top Floor, 5 Greville Place, London, NW6 5JP |
| ISHIYAMA, Tsutomu RESIGNED | Director | 01 Jul 1994 | 11 Apr 1997 | | March 1949 | 1 Corringham Road, Wembley, Middlesex, HA9 9PX |
| KAJIMA, Shoichi RESIGNED | Director | | 30 Mar 1995 | Japan | August 1930 | 4-11-65, Minami-Azabu, Minato-Ku, Tokyo, Japan |
| KOSHIJIMA, Keisuke RESIGNED | Director | 01 Nov 2010 | 03 Mar 2016 | Japan | January 1956 | 3-1, Motoakasaka 1-Chome, Minato-Ku, Tokyo 107-8388, Japan |
| MIYAZAKI, Naomichi RESIGNED | Director | 31 May 2000 | 24 Jun 2004 | | July 1953 | 11 Downside, Saint Johns Avenue, London, SW15 2AF |
| NAKAGAWA, Yukiyasu RESIGNED | Director | 01 Jul 1994 | 29 Jun 1999 | | August 1946 | 6 Marlborough Hill, St Johns Wood, London, NW8 0NN |
| NAKAJIMA, Takashi RESIGNED | Director | | 30 Mar 1995 | | August 1927 | 2-4-7-701tate, Shiki, Saitama, 353, Japan |
| OGURO, Shingo RESIGNED | Director | 18 Jun 1998 | 31 Mar 2004 | | October 1953 | 99 Cissbury Ring South, London, N12 7BJ |
| OHORI, Shoichi RESIGNED | Director | | 30 Mar 1995 | | May 1930 | Kohoku-Ku Yokohama, Fujizuka, 2-31-10 Japan, FOREIGN |
| QUINN, Thomas Anthony RESIGNED | Director | 31 May 2000 | 15 Jun 2006 | | May 1949 | 49 Moyallon Road, Gilford, County Down, BT63 5JX, Northern Ireland |
| RUDD-JONES, Julian Mark RESIGNED | Director | 29 Jun 1999 | 15 Jun 2006 | England | June 1955 | 30 Church Lane, Oxted, Surrey, RH8 9LB |
| SHIBASAKI, Katsumi RESIGNED | Director | 15 Jul 2003 | 31 May 2007 | | February 1949 | 35 St Mary's Court 4 Palgrave, Gardens Prince Regents Gate, London, NW1 6EW |
| SUGAHARA, Kenji RESIGNED | Director | 28 Jan 2004 | 15 Jun 2006 | | December 1950 | 68 Northiam, Woodside Park, London, N12 7HJ |
| SUGIMOTO, Harunori RESIGNED | Director | 22 Feb 2001 | 20 Jun 2005 | | June 1961 | 138 Princes Gardens, London, W3 0LN |
| SUGIURA, Shinji RESIGNED | Director | 01 Jul 1994 | 08 Apr 1999 | | May 1949 | Flat 15, 6/7 Vicarage Gate, London, W8 |
| SUZUKI, Fujio RESIGNED | Director | 11 Apr 1997 | 15 Jul 2003 | | March 1948 | 6 Marlborough Hill, St Johns Wood, London, NW8 0NN |
| TOMITA, Masahiro RESIGNED | Director | 29 Jun 1999 | 20 Jun 2005 | | March 1953 | 5 Mark Drive, Chalfont St. Peter, Gerrards Cross, Buckinghamshire, SL9 0PP |
| UCHIDA, Ken RESIGNED | Director | 01 Jan 2013 | 31 Mar 2015 | England | May 1956 | 55, Baker Street, London, W1U 8EW, United Kingdom |
| UCHIDA, Koji RESIGNED | Director | | 01 Jul 1994 | | October 1935 | Nakano-Ku Tokyo, Shirasagi, 3-18-5 Japan, FOREIGN |
| UCHIDA, Michiya RESIGNED | Director | 01 Apr 2015 | 29 May 2015 | Japan | January 1960 | 55, Baker Street, London, W1U 8EW |
| UCHIDA, Michiya RESIGNED | Director | 31 May 2007 | 01 Jan 2013 | England | January 1960 | 55, Baker Street, London, W1U 8EW, United Kingdom |
| UCHIDA, Michiya RESIGNED | Director | 29 Aug 2002 | 31 Mar 2004 | Japan | January 1960 | 10 Kingsley Close, London, N2 0ES |
| UENO, Shigehiko RESIGNED | Director | 20 Jun 2005 | 05 Jul 2010 | United Kingdom | June 1945 | Grove House, 248a Marylebone Road, London, NW1 6JZ |
| WALTERS, Geoffrey Paul RESIGNED | Director | 29 Jun 2001 | 15 Jun 2006 | | January 1952 | 31 Holland Park, London, W11 3TA |
| WATANABE, Shoichi RESIGNED | Director | 02 Jun 1995 | 22 Feb 2001 | | August 1949 | 97 Saxon Drive, London, W3 0NY |
| YAJIMA, Akira RESIGNED | Director | 31 May 2007 | 27 Aug 2013 | United Kingdom | September 1962 | 55, Baker Street, London, W1U 8EW, United Kingdom |
| YAJIMA, Akira RESIGNED | Director | 20 Jun 2005 | 15 Jun 2006 | United Kingdom | September 1962 | 19 Queen's Drive, West Acton, London, W3 0HF |
| YAMAGUCHI, Teruaki RESIGNED | Director | 15 Jun 2006 | 03 Mar 2016 | Japan | January 1946 | 3-55-10 Yogogi, Shibuya-Ku, Tokyo, 151-0053, FOREIGN, Japan |
| YATSUZUKA, Yo RESIGNED | Director | 27 Aug 2013 | 27 Aug 2013 | United Kingdom | March 1974 | 55, Baker Street, London, W1U 8EW, United Kingdom |
| YOSHIDA, Fujio RESIGNED | Director | | 01 Jul 1994 | | December 1936 | 6 Marlborough Hill, London, NW8 0NN |