Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488204 | Payment management method and system using an IC card | Tomohiro Umezawa, Masatoshi Hino | 2002-12-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488204 | Payment management method and system using an IC card | Tomohiro Umezawa, Masatoshi Hino | 2002-12-03 |