Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8064130 | Optical amplifier | Masato Nishihara, Yasushi Sugaya | 2011-11-22 |
| 8054455 | Optical amplifier provided with control function of pumping light, and optical transmission system using the same | Yasushi Sugaya, Masato Nishihara | 2011-11-08 |