Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7226160 | Ink jet recording medium and ink fixer | Akira Okada | 2007-06-05 |
| 6982069 | Dye fixing agent for water-color ink, ink jet recording medium and porous hydrotalcite compound | Akira Okada | 2006-01-03 |
| 6544631 | Fixing agent for dye and ink-jet recording medium | Akira Okada | 2003-04-08 |