Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6769609 | Portable card unit processing apparatus | Shigeru Hashimoto | 2004-08-03 |
| 6722572 | Recording medium control method, data management apparatus, and recording medium | Hisayuki Nishimura | 2004-04-20 |