Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5767868 | Method for establishing a user identification code and a job classification code on a time card | Shuji Sugiuchi, Mituru Saito, Youichi Konno, Kenji Ebine | 1998-06-16 |
| 4420759 | Card locking device for time recorder | — | 1983-12-13 |