Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11852953 | Optical element and manufacturing method thereof | Takeshi Umeki, Takushi Kazama, Takahiro Kashiwazaki, Koji Embutsu, Osamu Tadanaga +1 more | 2023-12-26 |
| 11815715 | Planar optical waveguide device | Takahiro Kashiwazaki, Takeshi Umeki, Osamu Tadanaga, Koji Embutsu, Nobutatsu Koshobu +1 more | 2023-11-14 |
| 11768421 | Wavelength conversion device | Osamu Tadanaga, Takeshi Umeki, Koji Embutsu, Nobutatsu Koshobu, Takahiro Kashiwazaki +2 more | 2023-09-26 |