| April | 1995 | Registered as an attorney |
| July | 1998 | Partner, Kakimoto Law Office |
| September | 2008 | Partner, Kasumigaseki Law & Accounting Office |
| March | 2011 | External Auditor, MEDIAFLAG Inc. (currently ImpactHD Inc.) |
| February | 2012 | Outside Auditor, ALTECH CO., LTD. (present post) |
| March | 2015 | Senior Partner, SAKURADA DORI PARTNERS (present post) |
| March | 2016 | External Director, MEDIAFLAG Inc. (currently ImpactHD Inc.) |
| April | 2016 | Deputy Chairman, Dai-Ichi Tokyo Bar Association |
| March | 2019 | Auditor (present post) |
| April | 2022 | Executive Governor, Japan Federation of Bar Associations |