| Amemiya Masaya Law Office (Associate, 1992-2007) |
| Civil Conciliation Division, Tokyo District Court (Civil Conciliator, 2006-2007) |
| Litigation Division, Tokyo Legal Affairs Bureau, Ministry of Justice (Litigation Officer, 2007-2009) |
| Legal and Judicial System Reform Project of Japan International Cooperation Agency (JICA), operated in Hanoi, Vietnam (Long-term Expert, 2009-2011) |
| TMI Associates (Advisor Attorney, 2011-Present) |
| Hakuoh University Law School (Professor, 2011-Present) |
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