| 12346000 |
Planar optical waveguide device for measuring amplitude phase of squeezed light |
Ryoichi Kasahara, Takeshi Umeki, Osamu Tadanaga, Koji Embutsu, Nobutatsu Koshobu +2 more |
2025-07-01 |
| 12339564 |
Wavelength conversion apparatus |
Takahiro Kashiwazaki, Koji Embutsu, Takeshi Umeki, Osamu Tadanaga, Takushi Kazama +2 more |
2025-06-24 |
| 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 |
| 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 |