Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7510113 | Billing system, and device constituting same | Yoichiro Igarashi, Chizu Hamasaki, Hiroyuki Taniguchi, Masaaki Takase, Mitsuaki Kakemizu | 2009-03-31 |
| 7359350 | Mobile packet communication system | Tsuguo Kato, Ryuichi Takechi, Hideaki Ono | 2008-04-15 |
| 7277948 | Network system with dynamic service profile updating functions | Yoichiro Igarashi, Shinya Yamamura, Mitsuaki Kakemizu, Kazunori Murata | 2007-10-02 |
| 7197014 | Recording medium, fault analysis device and fault analysis method | Tsuneo Katsuyama, Masanobu Morinaga, Hideaki Miyazaki, Yuji Nomura, Takeshi Yasuie +2 more | 2007-03-27 |
| 7068640 | VPN system in mobile IP network, and method of setting VPN | Mitsuaki Kakemizu, Shinya Yamamura, Yoichiro Igarashi, Kazunori Murata | 2006-06-27 |
| 6917605 | Mobile network system and service control information changing method | Mitsuaki Kakemizu, Kazunori Murata, Yoichiro Igarashi, Shinya Yamamura | 2005-07-12 |
| 6646999 | Mobile packet communication system | Tsuguo Kato, Ryuichi Takechi, Hideaki Ono | 2003-11-11 |
| 6212521 | Data management system, primary server, and secondary server for data registration and retrieval in distributed environment | Shinji Minami, Mitsuaki Kakemizu | 2001-04-03 |
| 6028838 | Navigation apparatus | Shinya Yamamura, Kenichi Fukuda | 2000-02-22 |
| 5729688 | Network element managing system | Moowan Kim, Mitsunori Fukazawa, Kenichi Fukuda, Kazumasa Ushiki, Shinichi Matsumoto | 1998-03-17 |
| 5526415 | Integrated communication system with intelligent network and telecommunications management network | — | 1996-06-11 |
| 5438356 | Accounting system for multimedia communications system | Kazumasa Ushiki, Mitsunori Fukazawa | 1995-08-01 |
| 5107500 | Diagnostic expert system | Moo Woong Kim, Mitsunori Fukazawa, Takahiro Aramaki | 1992-04-21 |