| 11852953 |
Optical element and manufacturing method thereof |
Takeshi Umeki, Takushi Kazama, Takahiro Kashiwazaki, Koji Embutsu, Asuka Inoue +1 more |
2023-12-26 |
| 11815715 |
Planar optical waveguide device |
Takahiro Kashiwazaki, Takeshi Umeki, Koji Embutsu, Nobutatsu Koshobu, Asuka Inoue +1 more |
2023-11-14 |
| 11815785 |
Wavelength conversion optical element |
Takahiro Kashiwazaki, Takeshi Umeki, Ryoichi Kasahara, Koji Embutsu, Takushi Kazama +1 more |
2023-11-14 |
| 11768421 |
Wavelength conversion device |
Takeshi Umeki, Koji Embutsu, Nobutatsu Koshobu, Takahiro Kashiwazaki, Asuka Inoue +2 more |
2023-09-26 |
| 11740537 |
Optical signal processing circuit |
Takeshi Umeki, Takushi Kazama, Koji Embutsu, Takahiro Kashiwazaki, Nobutatsu Koshobu +1 more |
2023-08-29 |
| 11733584 |
Wavelength conversion apparatus |
Koji Embutsu, Nobutatsu Koshobu, Ryoichi Kasahara, Takeshi Umeki, Takushi Kazama +1 more |
2023-08-22 |
| 11644735 |
Wavelength conversion element |
Takahiro Kashiwazaki, Takushi Kazama, Takeshi Umeki, Koji Embutsu, Nobutatsu Koshobu +1 more |
2023-05-09 |