Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5581547 | Random access communication method by CDMA and mobile station equipment using the same | Narumi Umeda, Tadashi Matsumoto | 1996-12-03 |
| 5574983 | Base station device and mobile station device in mobile communication system utilizing the site diversity effect in soft handover state | Narumi Umeda | 1996-11-12 |
| 5568472 | Code division multiple access mobile communication system | Narumi Umeda, Tadashi Matsumoto | 1996-10-22 |