Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700910 | Wavelength tunable laser and optical device | Masahiro Aoki, Shinya Sasaki, Tomonobu Tsuchiya | 2004-03-02 |
| 6111998 | Semiconductor optical device, fiber optical amplifier and optical transmission system | Tatemi Ido, Hirohisa Sano | 2000-08-29 |