Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824322 | Receipt issuing method and receipt printer | — | 2004-11-30 |
| 6805423 | System and method for controlling gradation | Kei Suzuki, Mitsuhiro Igarashi, Masami Kawamori | 2004-10-19 |