Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501574 | Optical multiplex transmission apparatus and optical multiplex transmission method | Kazuyoshi Unno, Akiyoshi Tomita, Akira Norizuki, Katsutoshi Nakajima, Yoshikazu Saito | 2002-12-31 |
| 6400969 | Communication equipment, charging terminal structure and isolating switch | Atsushi Yamashita, Shinya Kinoshita, Yuzo Oishi, Takashi Kamiya, Yoshihiro Nishikawa +1 more | 2002-06-04 |
| 6381714 | Error detection method, error detection apparatus, and network system | Akiyoshi Tomita, Kazuyoshi Unno, Akira Norizuki, Katsutoshi Nakajima, Yoshikazu Saito | 2002-04-30 |