Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6332671 | Ink jet recording head and method of manufacturing the same | Tomoaki Takahashi, Ryoichi Tanaka | 2001-12-25 |
| 6296351 | Ink jet recording head with narrowed reservoir ends | Ryoichi Tanaka, Tsuyoshi Kitahara, Hitotoshi Kimura, Takayuki Iijima | 2001-10-02 |
| 6217159 | Ink jet printing device | Koji Morikoshi, Tsuyoshi Kitahara, Kaoru Momose, Masahiko Yoshida, Kazunaga Suzuki +2 more | 2001-04-17 |
| 6139132 | Ink jet recording head with nozzle communicating hole having smaller width than pressurizing chambers in direction of array of pressurizing chambers | Shinji Yasukawa, Minoru Usui, Takahiro Naka, Tsuyoshi Kitahara, Hideaki Sonehara | 2000-10-31 |
| 6048053 | Ink jet recording head including a spacing member for defining a gap between a fixed board and a piezoelectric element | Kazumi Kamoi, Kazunaga Suzuki, Minoru Usui, Hiromi Mimura, Manabu Nagawatari | 2000-04-11 |
| 5710584 | Ink jet recording head utilizing a vibration plate having diaphragm portions and thick wall portions | Kazunaga Suzuki, Minoru Usui, Kazuhiko Miura, Takahiro Naka | 1998-01-20 |
| 5548314 | Ink jet recording head | Takahiro Naka, Shinji Yasukawa | 1996-08-20 |
| 5157420 | Ink jet recording head having reduced manufacturing steps | Takahiro Naka, Kazuhiko Hara, Seiji Mochizuki | 1992-10-20 |