Issued Patents 2024
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12153325 | Wavelength converter | Nobutatsu Koshobu, Koji Embutsu, Takeshi Umeki, Osamu Tadanaga, Takahiro Kashiwazaki +1 more | 2024-11-26 |
| 12085836 | Optical amplifier | Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Osamu Tadanaga, Koji Embutsu +2 more | 2024-09-10 |
| 12032269 | Wavelength conversion apparatus | Koji Embutsu, Osamu Tadanaga, Takeshi Umeki, Ryoichi Kasahara, Takahiro Kashiwazaki +2 more | 2024-07-09 |
| 11888528 | Optical communication system | Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Osamu Tadanaga, Koji Embutsu +2 more | 2024-01-30 |