Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498675 | Wavelength converter | Yoshiyasu Ueno | 2002-12-24 |
| 6498885 | Semiconductor nonlinear waveguide and optical switch | Shigeru Nakamura | 2002-12-24 |
| 6295402 | Non-linear optical switch | Shigeru Nakamura | 2001-09-25 |
| 6282015 | Wavelength converter | Yoshiyasu Ueno | 2001-08-28 |
| 6208455 | Wavelength converter | Yoshiyasu Ueno, Shigeru Nakamura | 2001-03-27 |
| 6049642 | Nonlinear optical switch | Shigeru Nakamura | 2000-04-11 |
| 5710845 | All-optical switch | — | 1998-01-20 |
| 5557700 | Semiconductor optical device utilizing nonlinear optical effect | Shigeru Nakamura | 1996-09-17 |
| 5535001 | Symmetric Mach-Zehnder all-optical device | — | 1996-07-09 |
| 5191630 | Nonlinear optical device for controlling a signal light by a control light | — | 1993-03-02 |
| 4933929 | Wavelength multiplexed optical transmitter for generating constant-amplitude angle-modulated beams to eliminate phase noise in adjacent transmission channels | — | 1990-06-12 |