Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489452 | Azo dyes, process for making the same, ink-jet printing ink, ink-jet recording method | Keiichi Tateishi, Makoto Yamada | 2002-12-03 |
| 6468730 | Image recording material | Rikio Inoue | 2002-10-22 |
| 6455679 | Azo dye, ink-jet recording ink containing the same, and ink-jet recording method | Keiichi Tateishi, Yasushi Azuma | 2002-09-24 |