Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8979246 | Inkjet head unit and inkjet recording device | Shigekazu Sakai, Yoshifumi Takafuji, Yuichi Machida, Koujiro Yoshida, Yasuo Nishi | 2015-03-17 |
| 8864263 | Inkjet recording device and method for generating drive waveform signal | Yoshifumi Takafuji, Eisuke Takagi | 2014-10-21 |
| 8020971 | Liquid ejection head, liquid ejection apparatus and liquid ejection method | Yasuo Nishi, Atsuro Yanata | 2011-09-20 |
| 7938510 | Liquid ejection head and liquid ejection method | Yasuo Nishi, Atsuro Yanata | 2011-05-10 |
| 4495003 | Manufacturing a steel tube including tufftriding | — | 1985-01-22 |
| 4458724 | Steel tube | — | 1984-07-10 |