Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800674 | Anthraquinone compound and water-based ink-jet recording ink containing the compound | Osamu Kohgo, Yoriaki Matsuzaki, Tadashi Okuma | 2004-10-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800674 | Anthraquinone compound and water-based ink-jet recording ink containing the compound | Osamu Kohgo, Yoriaki Matsuzaki, Tadashi Okuma | 2004-10-05 |