Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496304 | Optical amplifying device | Toru Shiozaki | 2002-12-17 |
| 6486986 | System for optically transmitting frequency-division-multiplexed signal and transmitter therefor | — | 2002-11-26 |
| 6437908 | Optical amplifying device | Toru Shiozaki | 2002-08-20 |
| 6335814 | Optical transmission system and optical transmitter and optical receiver used therefor | Jun Ohya | 2002-01-01 |