Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5299276 | Waveguide type optical device and method for manufacturing the same | Koji Okamura | 1994-03-29 |
| 5284500 | Process for fabricating an optical fiber preform | Kouji Okamura | 1994-02-08 |