Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6328210 | Card for driver and traffic-related business conducting apparatus and method using the same | Si Won Kim | 2001-12-11 |
| 5793027 | IC card for credit transactions and credit transaction apparatus and method using the same | — | 1998-08-11 |
| 5773804 | Electronic passbook system using electronic passbook card and method of using the same therein | — | 1998-06-30 |