Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7512120 | Node, correspondent node, mobility anchor point, and home agent in packet communication system, packet communication system, and path MTU discovery method | Hideaki Takahashi, Koji Omae, Narumi Umeda | 2009-03-31 |
| 7496084 | Mobile node, a control method thereof, and a mobile node control program | Masahiro Inoue, Koji Omae, Narumi Umeda | 2009-02-24 |
| 7496083 | Mobility management node, paging area forming method, and mobility management program | Koji Omae, Masahiro Inoue, Narumi Umeda | 2009-02-24 |
| 7492738 | Mobile node, mobile communication system, communication control method and access router | Koji Omae, Hideaki Takahashi, Narumi Umeda | 2009-02-17 |
| 7483713 | Base station and transmission power control method | Shinichi Mori, Narumi Umeda | 2009-01-27 |
| 7433965 | Packet transmission system, packet transmission method, packet transmission device, home agent, mobile terminal, and access router | Hiroyuki Kawai, Narumi Umeda | 2008-10-07 |
| 7362729 | Mobile node, mobile communication system, and communication control program | Koji Omae, Hideaki Takahashi, Narumi Umeda | 2008-04-22 |
| 7349364 | Mobility management system, and mobile node used in the system, mobility management method, mobility management program, and mobility management node | Koji Omae, Narumi Umeda | 2008-03-25 |
| 7342932 | Packet transmission system, and apparatus and method for controlling packet transmission route | Koji Omae, Takehiro Ikeda, Narumi Umeda | 2008-03-11 |
| 7330449 | Mobile node, mobility control apparatus, communication control method, communication system, and data format | Hideaki Takahashi, Koji Omae, Masahiro Inoue, Narumi Umeda | 2008-02-12 |
| 7321382 | Virtual communication device configuring method and apparatus | Narumi Umeda | 2008-01-22 |
| 7301948 | Routing method, node, packet communication system, program, and recording medium | Koji Omae, Takehiro Ikeda, Narumi Umeda | 2007-11-27 |
| 7224954 | Method and device for communicating via an ad-hoc wireless network | Yasushi Yamao | 2007-05-29 |
| 7171218 | Mobile unit, server and method of providing information | Takehiro Ikeda, Koji Omae | 2007-01-30 |
| 7139561 | Mobile communication system and distributed broadcast information control method in mobile communication system | Takehiro Ikeda, Narumi Umeda | 2006-11-21 |
| 7110752 | Radio communication method and a radio station with software reconfiguration features | — | 2006-09-19 |
| 7072655 | Mobile communication system and method for controlling receiving quality | Takehiro Ikeda, Narumi Umeda | 2006-07-04 |
| 7006121 | Virtual terminal configuring method and device | Narumi Umeda | 2006-02-28 |
| 7002959 | Packet communication method, node apparatus and packet communication system | Yoshifumi Suzuki, Takuya Shinozaki, Narumi Umeda | 2006-02-21 |
| 6920322 | Paging control method and paging control system in communication system | Takehiro Ikeda, Narumi Umeda | 2005-07-19 |
| 6885865 | Mobile communication system, and location registration method of mobile station, resource control method and recording medium in mobile communication system | Takehiro Ikeda, Narumi Umeda | 2005-04-26 |
| 6839559 | Retransmission control method and the apparatus | Takehiro Ikeda, Narumi Umeda | 2005-01-04 |
| 6819661 | Method and apparatus of a mobile communication system which reduces power consumption by observing only the starting slot on a TDMA radio channel | Akihiro Maebara, Atsushi Murase, Katsumi Kobayashi, Tadao Takami | 2004-11-16 |
| 6760588 | Method and apparatus for stabilizing communication in mobile communication system | Narumi Umeda, Yoshifumi Suzuki, Yasushi Yamao | 2004-07-06 |
| 6507566 | Mobile communication device, mobile data communication method, and recording medium | Chie Noda, Hiroyuki Hattori, Tadao Takami | 2003-01-14 |