Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7065585 | Method for switching communication modes and exchange therefor | Akiko Ishigami | 2006-06-20 |
| 6967922 | Traffic control method, network system and frame relay switch | Hiroshi Takahashi | 2005-11-22 |
| 6118759 | Network system and frame relay switch | Junichi Katoh | 2000-09-12 |
| 6094419 | Traffic control method, network system and frame relay switch | Hiroshi Takahashi | 2000-07-25 |