| March 2000 | Graduated from Aomori High School |
| March 2004 | Graduated from School of Law, Tohoku University |
| March 2007 | Completed Masters Course, Graduate School of Law, Tohoku University |
| September 2007 | Passed bar examination |
| December 2008 | Completed legal training (61st group of graduates) |
| December 2008 | Admitted to the bar, joined law firm in Tokyo |
| January 2014 | Opened Ito Tomoya Law Firm |
| April 2020 | Opened Maekawa and Ito Law Office |
| April 2024 | Opened Ito Law Office |