Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6965680 | Piezoelectric electro-acoustic transducer | Tetsuo Takeshima, Manabu Sumita | 2005-11-15 |
| 6888947 | Piezoelectric electroacoustic transducer | Tetsuo Takeshima, Manabu Sumita | 2005-05-03 |
| 6842087 | Three-terminal filter using area flexural vibration mode | — | 2005-01-11 |