Issued Patents All Time
Showing 201–203 of 203 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5010977 | Acoustic apparatus with plural resonators having different resonance frequencies | Kazunari Furukawa | 1991-04-30 |
| 4980920 | Negative impedance driving apparatus having temperature compensation circuit | Masao Noro | 1990-12-25 |
| 4949384 | Driving apparatus | Masao Noro | 1990-08-14 |