https://www.tuj.ac.jp/sites/japan/files/tuj-all-student-handbook-fall-2025.pdf
Using your TUportal login, sign into the Name/Personal Info Change app to update your personal information (legal name, date of birth or SSN). Complete the required form fields. Select the supporting document type, and upload the file. After uploading each document type individually, click SUBMIT REQUEST to send your request.