| 12346000 |
Planar optical waveguide device for measuring amplitude phase of squeezed light |
Asuka Inoue, Ryoichi Kasahara, Takeshi Umeki, Osamu Tadanaga, Nobutatsu Koshobu +2 more |
2025-07-01 |
| 12339564 |
Wavelength conversion apparatus |
Takahiro Kashiwazaki, Takeshi Umeki, Osamu Tadanaga, Takushi Kazama, Asuka Inoue +2 more |
2025-06-24 |
| 12153325 |
Wavelength converter |
Nobutatsu Koshobu, Takeshi Umeki, Osamu Tadanaga, Takahiro Kashiwazaki, Takushi Kazama +1 more |
2024-11-26 |
| 12085836 |
Optical amplifier |
Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Osamu Tadanaga, Nobutatsu Koshobu +2 more |
2024-09-10 |
| 12032269 |
Wavelength conversion apparatus |
Osamu Tadanaga, Takeshi Umeki, Asuka Inoue, Ryoichi Kasahara, Takahiro Kashiwazaki +2 more |
2024-07-09 |
| 12007666 |
Wavelength conversion element and method for producing same |
Takahiro Kashiwazaki, Takeshi Umeki, Ryoichi Kasahara, Osamu Tadanaga, Takushi Kazama |
2024-06-11 |
| 11971644 |
Wavelength conversion device |
Ryoichi Kasahara, Osamu Tadanaga, Takeshi Umeki, Takahiro Kashiwazaki, Takushi Kazama |
2024-04-30 |
| 11892745 |
Wavelength conversion element and method for manufacturing same |
Takushi Kazama, Takahiro Kashiwazaki, Osamu Tadanaga, Ryoichi Kasahara, Takeshi Umeki |
2024-02-06 |
| 11888528 |
Optical communication system |
Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Osamu Tadanaga, Nobutatsu Koshobu +2 more |
2024-01-30 |
| 11852953 |
Optical element and manufacturing method thereof |
Takeshi Umeki, Takushi Kazama, Takahiro Kashiwazaki, Osamu Tadanaga, Asuka Inoue +1 more |
2023-12-26 |
| 11815715 |
Planar optical waveguide device |
Takahiro Kashiwazaki, Takeshi Umeki, Osamu Tadanaga, Nobutatsu Koshobu, Asuka Inoue +1 more |
2023-11-14 |
| 11815785 |
Wavelength conversion optical element |
Takahiro Kashiwazaki, Takeshi Umeki, Ryoichi Kasahara, Osamu Tadanaga, Takushi Kazama +1 more |
2023-11-14 |
| 11768421 |
Wavelength conversion device |
Osamu Tadanaga, Takeshi Umeki, Nobutatsu Koshobu, Takahiro Kashiwazaki, Asuka Inoue +2 more |
2023-09-26 |
| 11740537 |
Optical signal processing circuit |
Takeshi Umeki, Takushi Kazama, Takahiro Kashiwazaki, Osamu Tadanaga, Nobutatsu Koshobu +1 more |
2023-08-29 |
| 11733584 |
Wavelength conversion apparatus |
Nobutatsu Koshobu, Ryoichi Kasahara, Takeshi Umeki, Osamu Tadanaga, Takushi Kazama +1 more |
2023-08-22 |
| 11644735 |
Wavelength conversion element |
Osamu Tadanaga, Takahiro Kashiwazaki, Takushi Kazama, Takeshi Umeki, Nobutatsu Koshobu +1 more |
2023-05-09 |
| 11442225 |
Wavelength conversion element and method for manufacturing wavelength conversion element |
Takahiro Kashiwazaki, Ryoichi Kasahara, Osamu Tadanaga, Takeshi Umeki, Takushi Kazama |
2022-09-13 |
| 11385521 |
Wavelength conversion apparatus |
Takeshi Umeki, Takushi Kazama, Takahiro Kashiwazaki, Osamu Tadanaga, Ryoichi Kasahara |
2022-07-12 |
| 11387909 |
Optical signal transmitter |
Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Osamu Tadanaga, Ryoichi Kasahara |
2022-07-12 |