Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7089017 | Resource control method, mobile communication system, base station and mobile station | Lan Chen, Narumi Umeda | 2006-08-08 |
| 7076258 | Location registration method and paging method in mobile communication system, mobile communication system, base station, communication control method, mobile station, and communication control program | Masayuki Motegi, Narumi Umeda | 2006-07-11 |
| 7035637 | Location registration area configuring method, mobile communication system, base station, and location management server | Masayuki Motegi, Narumi Umeda | 2006-04-25 |
| 6307837 | Method and base station for packet transfer | Takeo Ichikawa, Hiroyuki Yamamoto, Hitoshi Takanashi, Masahiro Morikura | 2001-10-23 |
| 5881061 | Method and system for data communication | Masataka Iizuka, Hiroshi Yoshida | 1999-03-09 |