Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7097698 | Ink-jet recording ink, ink cartridge and recording device using such ink | Mamoru Soga, Hidekazu Arase | 2006-08-29 |
| 5805186 | Ink jet head | Naoto Yoshida, Hiroshi Shibata, Mitsuhide Matsuda | 1998-09-08 |