Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597494 | Polarization maintaining optical fiber amplifier and optical amplifier | Tomoharu Kitabayashi, Tetsuya Sakai | 2003-07-22 |
| 6542288 | Optical amplifier utilizing rare earth element-doped optical fibers for temperature compensation | Takuya Aizawa, Tetsuya Sakai, Takafumi Kashima | 2003-04-01 |