Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783222 | Water base pigment ink for ink-jet recording and ink-jet recording method | Hideto Yamazaki | 2004-08-31 |
| 6679598 | Water base pigment ink for ink-jet recording and ink-jet recording apparatus | Hideto Yamazaki | 2004-01-20 |