Issued Patents 2003
Showing 1–2 of 2 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, 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 |