Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484843 | Speaker apparatus equipped with means for producing complicated waveform of low frequency with higher improved fidelity | Haruhiko Imamura | 2002-11-26 |
| 6457217 | Component attaching device | Tomoharu Izume | 2002-10-01 |