Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6424833 | Mobile communication system and a hand-off method thereof | Hiromi Iizuka, Makoto Aihara | 2002-07-23 |
| 6393287 | System for switching speech channel between loosely couple radio base stations | Hiroyuki Munekata | 2002-05-21 |