Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10025031 | Grating structure, and manufacturing method of grating coupler provided therewith | Masatoshi Tokushima | 2018-07-17 |
| 9971099 | Grating coupler with high optical coupling efficiency for SMF | Masatoshi Tokushima | 2018-05-15 |