Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4645293 | Optical waveguide coupler having a grating electrode | Taizo Yoshida, Masamitsu Masuda, Jiro Koyama | 1987-02-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4645293 | Optical waveguide coupler having a grating electrode | Taizo Yoshida, Masamitsu Masuda, Jiro Koyama | 1987-02-24 |