Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6731049 | Piezoelectric element and process for production thereof | Mutsumi Kitagawa | 2004-05-04 |
| 6713123 | Piezoelectric element and process for production thereof | Mutsumi Kitagawa | 2004-03-30 |