| Company | Timeline | Status | |
| Nippon Club Limited Director • Company Director | 26 Apr 2004←1 Year 11 Months→31 Mar 2006 | Active | |
| The Japanese School Limited Director • Managing Director | 1 Apr 2004←2 Years→1 Apr 2006 | Active | |
| Mitsui & Company Limited Director • Director | 7 May 2003←2 Years 11 Months→7 Apr 2006 | Active | |
| Mitsui & Co. Europe Ltd Director • Company Director | 8 Oct 2002←3 Years→31 Mar 2006 | Active | |
