Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7536110 | Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio | Tetsuya Uda, Hiroshi Masuda, Hirofumi Nakano, Eita Miyasaka | 2009-05-19 |
| 7391974 | Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals | Tetsuya Uda, Shigehiro Takashima, Shigenori Hayase, Yoshimasa Kusano, Hirofumi Nakano | 2008-06-24 |
| 7272325 | Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio | Tetsuya Uda, Hiroshi Masuda, Hirofumi Nakano, Eita Miyasaka | 2007-09-18 |
| 7194210 | Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals | Tetsuya Uda, Shigehiro Takashima, Shigenori Hayase, Yoshimasa Kusano, Hirofumi Nakano | 2007-03-20 |
| 7116908 | Optical transmission system for substantially equalizing the output signal level among frequency bands and substantially lowering the signal-to-noise ratio | Tetsuya Uda, Hiroshi Masuda, Hirofumi Nakano, Eita Miyasaka | 2006-10-03 |