| 1990/3 | Graduated, Faculty of Law Kyushu University (LL.B) | |
| 1992/3 | Graduated, Division of Law Graduate School Kyushu University (LL.M.) | |
| 1994/6 | Graduated, Yale Law School, U.S.A. (LL.M.) | |
| 1994/9-1996/12 | Visiting Scholar, Yale Law School, U.S.A | |
| 1997/3 | Credits Completed, Division of Law Graduate School Kyushu University | |
| 1997/4 | Lecturer, Faculty of Law Kyushu University | |
| 1998/6 | Awarded, J.S.D., Kyushu University | |
| 1999/1-1999/3 | Delegated to U.S.A (Yale Law School) as an Overseas Delegated Researcher by the Japanese Ministry of Education | |
| 2006/4 | Associate Professor, School of Law University of Tsukuba Before joining University of Tsukuba, teaching at University of the Ryukyus and Senshu University as an Associate Professor | |
| 2008/2-Up to the Present | Of Counsel, Masuda & Partners Law Office | |
| 2009/4-Up to the Present | Professor, School of Law University of Tsukuba |
| ● | “The Legal Theory of Hostile Takeovers” Kyushu University Press, 2000 |
| ● | “The Role of the Japanese Courts in Hostile Takeovers,” Law In Japan Vol.27, 1, 2001, etc. |
| 2001/9-Up to the Present | A Member of the Committee Related to the Special Economic Zone in Okinawa | |
| 2003/4-Up to the Present | Visiting Professor, University of the Ryukyus | |
| 2005/4-Up to the Present | Visiting Professor, Meiji University | |
| 2005/8-Up to the Present | Visiting Professor, Kyushu University | |
| 2005/9-Up to the Present | A Member of the Committee Related to the Japanese Ministry of Economy, Trade and Industry | |
| 2006/4-2007/3 | Visiting Professor, Senshu University | |
| 2006/9-2008/3 | A Member of the Committee for the Japan Association of Middle and Small Size Corporations | |
| 2007/1-Up to the Present | A Member of the Committee for the Consideration of Insurance Money for ALICO | |
| 2008/2-Up to the Present | A Member of the Committee for the Improvement of Canvass of Communication Saling for ALICO | |
| 2007/6-Up to the Present | A Member of the Committee for Corporate Takeovers for Hikari Business Form | |
| 2009/12-Up to the Present | A Member of the Board of Examiners for CPA |
