Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6480640 | Integrated optical circuit device and method for producing the same | Atsushi Shimonaka | 2002-11-12 |
| 6340605 | Waveguide type optical integrated circuit element and method for fabricating same | Atsushi Shimonaka | 2002-01-22 |