Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782017 | Wavelength locker and wavelength discriminating apparatus | Yutaka Kai, Hideyuki Miyata | 2004-08-24 |
| 6741390 | Variable wavelength light source apparatus and optical amplifier using same | Miki Onaka, Etsuko Hayashi | 2004-05-25 |
| 6717713 | Variable optical attenuator which applies a magnetic field to a faraday element to rotate the polarization of a light signal | Nobuhiro Fukushima | 2004-04-06 |