Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687265 | Optical control device and method for making the same | Toshiyuki Kambe | 1997-11-11 |
| 5661830 | Waveguide-type optical control device | — | 1997-08-26 |
| 5617493 | Waveguide type optical control device with properties of suppressed DC drift, reduced driving voltage and high speed operation | — | 1997-04-01 |