Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639340 | Method for manufacturing piezoelectric element, and piezoelectric element, ink-jet recording head and printer | Hong Qiu, Koji Sumi, Souichi Moriya, Masato Shimada | 2003-10-28 |
| 6571446 | Method for manufacturing piezoelectric luminous element | Hong Qiu, Koji Sumi | 2003-06-03 |
| 6551652 | Process for producing a piezoelectric element using a first SOL and a second SOL having a lead content greater than the first SOL | Hong Qiu, Soichi Moriya, Hiroyuki Kamei, Koji Sumi, Masami Murai | 2003-04-22 |
| 6502930 | Ink jet recording head, method for manufacturing the same, and ink jet recorder | Masato Shimada, Akira Matsuzawa, Yoshinao Miyata, Hiroyuki Kamei | 2003-01-07 |