Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650625 | Ring network system | Akira Norizuki, Akiyoshi Tomita, Kazuyoshi Unno, Hiroshi Nishiyama, Yoshikazu Saito | 2003-11-18 |
| 6640254 | Network control device enabling communication between first and second networks utilizing mode switching for downloading a communication program to the second network | Satoshi Tanaka, Akira Norizuki | 2003-10-28 |
| 6590863 | Operation mode changing-over method and multiplex transmission apparatus for realizing the same | Akira Norizuki, Akiyoshi Tomita, Hiroshi Nishiyama, Kazuyoshi Unno, Yoshikazu Saito | 2003-07-08 |
| 6504823 | Network monitoring system and method thereof | Yoshikazu Saito, Hiroshi Nishiyama, Kazuyoshi Unno, Akiyoshi Tomita, Akira Norizuki | 2003-01-07 |