Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12038602 | Optical circuit substrate | — | 2024-07-16 |
| 10935737 | Optical waveguide and optical circuit substrate | — | 2021-03-02 |
| 10168495 | Optical waveguide and optical circuit board | Ai Iwakura | 2019-01-01 |
| 9690046 | Optical circuit board and method for producing the same | Kenji Terada | 2017-06-27 |