Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810421 | Communication network system and method for controlling services in a communication network system | Takeshi Ishizaki, Osamu Takada, Tohru Setoyama, Kenichi Yoshida | 2004-10-26 |
| 6708209 | Network system having plural networks for performing quality guarantee among the networks having different policies | Tomoichi Ebata, Shigeru Miyake, Osamu Takada, Minoru Koizumi, Yoshiyuki Kurosaki +2 more | 2004-03-16 |
| 6700874 | Network system having route verification function and the component apparatuses and method thereof | Takeshi Ishizaki, Osamu Takada, Tohru Setoyama | 2004-03-02 |