Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6925217 | Optical waveguide device, variable optical attenuator, and optical switch | Hiroyuki Yamazaki | 2005-08-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6925217 | Optical waveguide device, variable optical attenuator, and optical switch | Hiroyuki Yamazaki | 2005-08-02 |