Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807376 | Gain equalizer which includes a plurality of optical filters for equalizing the gain of an optical amplifier | Naomasa Shimojoh, Takafumi Terahara | 2004-10-19 |
| 6738181 | Optical sending apparatus and channel extension method | Hiroshi Nakamoto, Takao Naito | 2004-05-18 |