Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682190 | Ink jet head and apparatus having an air chamber for improving performance | Toshiaki Hirosawa, Yutaka Koizumi, Mineo Kaneko, Torachika Osada, Hidemi Kubota | 1997-10-28 |
| 5646659 | Ink jet recording apparatus, and method with control of ink drops and ink mist | Yutaka Koizumi, Hisashi Fukushima, Toshiaki Hirosawa, Torachika Osada, Haruhiko Moriguchi +2 more | 1997-07-08 |
| 5594476 | Driving method of ink jet head and ink jet apparatus | Tatsuyuki Tokunaga | 1997-01-14 |