Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7379915 | Electronic purse loan system | Kenji Matsumoto, Shigeyuki Itoh, Masayuki Inoue | 2008-05-27 |
| 5991747 | Electronic purse loan system | Kenji Matsumoto, Shigeyuki Itoh, Masayuki Inoue | 1999-11-23 |