Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406606 | Electrocoagulation printing ink and method | Atsushi Betto, Tetsu Otsuji, Hiroyuki Kawashima | 2002-06-18 |
| 5854323 | Pigment dispersing agent, composition containing the same, and aqueous pigment dispersion | Tadashi Itabashi, Takashi Kamikubo | 1998-12-29 |
| 5472490 | Pigment composition, printing ink and coating composition | Shigeki Kato, Hitoshi Maki, Mikio Hayashi | 1995-12-05 |