Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597494 | Polarization maintaining optical fiber amplifier and optical amplifier | Takeshi Segi, Tetsuya Sakai | 2003-07-22 |
| 6563628 | Gain tilt free optical fiber amplifier in a wide dynamic gain range | Tetsuya Sakai, Takafumi Kashima | 2003-05-13 |