| May 2000 - Present | President & Chief Executive Officer SpeedNet Inc. |
| Sep 1999 - Apr 2000 | General Manager Sales Division SpeedNet Inc. |
| Jan 1999 - Aug 1999 | General Manager Sales Division Softbank Forum Corp. |
| Jun 1998 - Dec 1998 | General Manager Publishing Division. Administration Section Softbank Corp. |
| Jul 1995 - May 1998 | Executive Editing Director Publishing Division. Magazine Section, Publication Section, Internet Business Center Section, Amusement Publishing Section Softbank Corp. |
| Feb 1992 - Jun 1995 | Executive Sales Director Publishing Division. Advertising Sales Section, Softbank Corp. |
| May 1991 - Jan 1992 | Executive Business Director Datanet Division Softbank Corp. |
| Feb 1990 - Apr 1991 | Executive Promoting Director Datanet Division. Datanet Promotion Section Softbank Corp. |
| Jan 1990 | Joined Softbank Corp. |
| Education: Bachelor of Law, Sophia University |