Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6999785 | Communication system for transferring large data from network interface to radio interface | — | 2006-02-14 |
| 6782084 | Special call fee charging method | Takayuki Kondo | 2004-08-24 |
| 6608823 | CDMA mobile communication system and service area | — | 2003-08-19 |
| 6501954 | Mobile radio communication system and radio circuit controlling method therefor | — | 2002-12-31 |
| 6263207 | Mobile radio communication system and radio circuit controlling method therefor | — | 2001-07-17 |
| 5842128 | Mobile communication system wherein a base station transfers to another an identifier for a cell of call origination only upon call termination | Nobuyuki Takasawa | 1998-11-24 |
| 5548586 | Mobile packet communication system and a method of mobile packet communication | Tetsuya Toyoda | 1996-08-20 |
| 5444698 | Mobile radio communication system capable of preventing interference between time slots when propagation delay exists | — | 1995-08-22 |