| April | 1986 | Joined TOKEN C.E.E. Consultants Co., Ltd. |
| January | 1990 | Joined NIKKEN Consultants, Inc. (currently IDEA Consultants, Inc.) |
| June | 2009 | Joined the Company |
| April | 2012 | General Manager, Public Relations Section, Administration Headquarters |
| April | 2017 | General Manager, General Affairs Div., Chubu Office |
| April | 2020 | Deputy Chief, Administration Headquarters, General Manager, General Affairs Div. |
| March | 2023 | Full-time Auditor |
| March | 2025 | Auditor (present post) |