Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767084 | Ink-jet recording head and ink-jet recording apparatus | Hiroyuki Kamei, Masami Murai, Kazuhiko Fujimori | 2004-07-27 |
| 6698096 | Method for manufacturing a piezoelectric film element and an ink-jet recording head | Qiu Hong, Kouji Sumi | 2004-03-02 |
| 6639340 | Method for manufacturing piezoelectric element, and piezoelectric element, ink-jet recording head and printer | Hong Qiu, Koji Sumi, Masato Shimada, Tsutomu Nishiwaki | 2003-10-28 |
| 6502928 | Ink jet recording head and ink jet recording apparatus comprising the same | Masato Shimada, Shinri Sakai, Yoshinao Miyata | 2003-01-07 |
| 6411017 | Piezoelectric device, ink jet recording head, and methods of manufacturing said device and head | Hong Qiu, Kouji Sumi, Tsutomu Nishikawa | 2002-06-25 |
| 6336717 | Ink jet recording head and ink jet recording apparatus | Masato Shimada, Shinri Sakai, Yoshinao Miyata, Yutaka Furuhata | 2002-01-08 |
| 6328433 | Piezoelectric film element and ink-jet recording head using the same | Qiu Hong, Kouji Sumi | 2001-12-11 |