Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6275594 | Piezoelectric acoustic device | Tsuyoshi Yamashita, Tadao Sunahara | 2001-08-14 |
| 6205226 | Piezoelectric acoustic device | Tsuyoshi Yamashita, Tadao Sunahara | 2001-03-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6275594 | Piezoelectric acoustic device | Tsuyoshi Yamashita, Tadao Sunahara | 2001-08-14 |
| 6205226 | Piezoelectric acoustic device | Tsuyoshi Yamashita, Tadao Sunahara | 2001-03-20 |