Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658211 | Optical signal repeater and output level control method used in this repeater | — | 2003-12-02 |
| 6603587 | Optical amplifier repeater | Shuji Yamashita, Yasuhiro Aoki, Kenichi Yoneyama | 2003-08-05 |
| 6504637 | Optical regeneration circuit for regenerating signal with deteriorated signal to noise ratio by means of saturable absorption element | Satoshi Ishii | 2003-01-07 |