Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12015242 | Optical module | Norio Okada | 2024-06-18 |
| 11862930 | Optical module having restriction body fixed to stem and having a linear thermal expansion coefficient smaller than that of the stem | Akio SHIRASAKI, Norio Okada | 2024-01-02 |
| 11206087 | Optical module and optical transmitter | Akio SHIRASAKI, Norio Okada | 2021-12-21 |
| 9804422 | Semiconductor optical modulation device | Norio Okada | 2017-10-31 |