Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666144 | Ink droplet jet device having segmented piezoelectric ink chambers with different polarization | — | 1997-09-09 |
| 5646661 | Ink ejecting device having alternating ejecting channels and non-ejecting channels | Hiroki Asai, Hiroto Sugahara | 1997-07-08 |