Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9148294 | System and method for switching a communication path based on disaster information | Kiyomi Hasesaka | 2015-09-29 |
| 8825005 | Usage management system and usage management method | Kiyomi Hasesaka, Satoshi Maehara, Tatsuo Yamaguchi | 2014-09-02 |
| 8493944 | Terminal position managing server, access point, and call control server | Hidehiko Suzuki, Takuji Oyama | 2013-07-23 |
| 8428587 | Mobile communication system, position registration method, terminal, and home agent | Keiji Mizuma | 2013-04-23 |
| 8406738 | Mobile terminal authentication method and system | Hiromi Harada | 2013-03-26 |
| 7693507 | Wireless network control device and wireless network control system | Hidehiko Suzuki, Yoshihiro Kubota, Takuji Oyama | 2010-04-06 |
| 7031310 | Router and IP-packet-transferring method | Toshiyuki Kamo | 2006-04-18 |
| 6985489 | ATM switch | Yoshihiro Watanabe | 2006-01-10 |