Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8486186 | Magenta ink composition, ink cartridge, and recording system and recorded matter using the same | Hironori Sato, Akira Mizutani, Shuichi Koganehira, Naoki Okamoto | 2013-07-16 |
| 7858676 | Pigment dispersion and ink composition for ink jet printing | Minoru Waki, Naoki Okamoto | 2010-12-28 |
| 7524892 | Pigment dispersion and ink composition and ink set both containing the same | Shuichi Kataoka, Bunji Ishimoto, Akira Mizutani, Naoki Okamoto, Yoshiaki Miyazaki +1 more | 2009-04-28 |