Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639340 | Method for manufacturing piezoelectric element, and piezoelectric element, ink-jet recording head and printer | Koji Sumi, Souichi Moriya, Masato Shimada, Tsutomu Nishiwaki | 2003-10-28 |
| 6571446 | Method for manufacturing piezoelectric luminous element | Koji Sumi, Tsutomu Nishiwaki | 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 | Soichi Moriya, Hiroyuki Kamei, Koji Sumi, Masami Murai, Tsutomu Nishiwaki | 2003-04-22 |