Issued Patents 2024
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12085836 | Optical amplifier | Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Osamu Tadanaga, Koji Embutsu +2 more | 2024-09-10 |
| 12044883 | Optical waveguide and manufacturing method thereof | Yuji Fujiwara, Satomi Katayose | 2024-07-23 |
| 12032269 | Wavelength conversion apparatus | Koji Embutsu, Osamu Tadanaga, Takeshi Umeki, Asuka Inoue, Takahiro Kashiwazaki +2 more | 2024-07-09 |
| 12007666 | Wavelength conversion element and method for producing same | Takahiro Kashiwazaki, Takeshi Umeki, Osamu Tadanaga, Koji Embutsu, Takushi Kazama | 2024-06-11 |
| 11988873 | End structure of a waveguide | Katsuhiko Hirabayashi, Satomi Katayose, Yuji Fujiwara | 2024-05-21 |
| 11971644 | Wavelength conversion device | Koji Embutsu, Osamu Tadanaga, Takeshi Umeki, Takahiro Kashiwazaki, Takushi Kazama | 2024-04-30 |
| 11960152 | Method for adjusting transmitted wavelength of signal light transmitted through optical waveguide device | Katsuhiko Hirabayashi, Nobutatsu Koshobu, Satomi Katayose | 2024-04-16 |
| 11892745 | Wavelength conversion element and method for manufacturing same | Takushi Kazama, Takahiro Kashiwazaki, Osamu Tadanaga, Koji Embutsu, Takeshi Umeki | 2024-02-06 |
| 11888528 | Optical communication system | Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Osamu Tadanaga, Koji Embutsu +2 more | 2024-01-30 |