Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10386573 | Substrate-type optical waveguide and introducing method using fundamental and higher TE/TM modes | — | 2019-08-20 |
| 10365507 | Semiconductor optical integrated circuit | Norihiro Ishikura | 2019-07-30 |
| 10267995 | Substrate-type optical waveguide and substrate-type optical modulator | Shinichi Sakamoto, Norihiro Ishikura | 2019-04-23 |
| 10261385 | Light modulation element | — | 2019-04-16 |