Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735446 | Mobile communication system and a control unit of the system for efficient use of vacant channels in one-way communication | Hajime Hasegawa | 2004-05-11 |
| 5845209 | Mobile communications system | — | 1998-12-01 |