Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699380 | Spread spectrum communication terminal apparatus in CDMA cellular telephone system | — | 1997-12-16 |
| 5686869 | Pulse-width modulating device | Tetsuya Naruse, Tomoya Yamaura | 1997-11-11 |
| 5644590 | Spread spectrum communication apparatus and signal intensity detection apparatus | — | 1997-07-01 |