Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7373103 | Relay terminal, base station, charging server, communication system, charging method, program computer data signal, and storage medium | Yasushi Yamao | 2008-05-13 |
| 7305247 | Cell control method and cell system | Narumi Umeda | 2007-12-04 |
| 7292860 | Cell formation control method, a mobile communications system, and a base station and a mobile station used therein | Hideki Tobe | 2007-11-06 |
| 7254132 | Mobile communication system, mobile communication method, wireless base station, mobile station, and program | Toshiaki Takao, Kobaruto Shimada, Narumi Umeda | 2007-08-07 |
| 7254409 | Multicast service providing system, multicast service providing method, information distributor, radio terminal, and radio base station | Kobaruto Shimada, Toshiaki Takao, Narumi Umeda | 2007-08-07 |
| 7155234 | Connection acceptance control scheme by obtaining available quality value | Daisuke Kitazawa, Narumi Umeda | 2006-12-26 |
| 7136662 | Wireless base station, method of selecting wireless base station, method of multicasting, and wireless terminal | Narumi Umeda, Toshiaki Takao, Kobaruto Shimada | 2006-11-14 |
| 7130636 | Wireless communication apparatus and wireless channel assignment method | Daisuke Kitazawa, Narumi Umeda | 2006-10-31 |
| 7110769 | Cell formation control method, a mobile communications system, and a base station and a mobile station used therein | Hideki Tobe | 2006-09-19 |
| 7006847 | Base station for use in multi-network connection communication system and its connecting method | Narumi Umeda, Yasushi Yamao | 2006-02-28 |
| 6895216 | Rendering multicast service with sufficient reception quality to wireless terminals | Narumi Umeda, Yasushi Yamao | 2005-05-17 |
| 6882845 | Autonomous zone forming communication device and autonomous zone forming method | Narumi Umeda, Yasushi Yamao | 2005-04-19 |
| 6871071 | Handover control method and system | Toshiaki Takao, Narumi Umeda | 2005-03-22 |