| 11852953 |
Optical element and manufacturing method thereof |
Takeshi Umeki, Takushi Kazama, Takahiro Kashiwazaki, Koji Embutsu, Osamu Tadanaga +1 more |
2023-12-26 |
| 11835768 |
Filling resin and optical waveguide circuit filled with filling resin |
Katsuhiko Hirabayashi, Nobutatsu Koshobu |
2023-12-05 |
| 11815785 |
Wavelength conversion optical element |
Takahiro Kashiwazaki, Takeshi Umeki, Osamu Tadanaga, Koji Embutsu, Takushi Kazama +1 more |
2023-11-14 |
| 11768421 |
Wavelength conversion device |
Osamu Tadanaga, Takeshi Umeki, Koji Embutsu, Nobutatsu Koshobu, Takahiro Kashiwazaki +2 more |
2023-09-26 |
| 11740537 |
Optical signal processing circuit |
Takeshi Umeki, Takushi Kazama, Koji Embutsu, Takahiro Kashiwazaki, Osamu Tadanaga +1 more |
2023-08-29 |
| 11733584 |
Wavelength conversion apparatus |
Koji Embutsu, Nobutatsu Koshobu, Takeshi Umeki, Osamu Tadanaga, Takushi Kazama +1 more |
2023-08-22 |
| 11733469 |
Planar lightwave circuit and optical device |
Yuji Fujiwara, Satomi Katayose, Takahiro Kashiwazaki, Junji Sakamoto |
2023-08-22 |
| 11644735 |
Wavelength conversion element |
Osamu Tadanaga, Takahiro Kashiwazaki, Takushi Kazama, Takeshi Umeki, Koji Embutsu +1 more |
2023-05-09 |
| 11635641 |
Planar-lightwave-type optical device |
Ai Yanagihara, Kenya Suzuki, Kazunori Seno, Yuko Kawajiri |
2023-04-25 |