Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7424732 | Card settlement method and system using mobile information terminal | Tsutomu Matsumoto, Takeshi Kamata | 2008-09-09 |
| 7185808 | Entering/leaving management system | — | 2007-03-06 |