| 11852953 |
Optical element and manufacturing method thereof |
Takeshi Umeki, Takahiro Kashiwazaki, Koji Embutsu, Osamu Tadanaga, Asuka Inoue +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 |
| 11815785 |
Wavelength conversion optical element |
Takahiro Kashiwazaki, Takeshi Umeki, Ryoichi Kasahara, Osamu Tadanaga, Koji Embutsu +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, Koji Embutsu, Takahiro Kashiwazaki, Osamu Tadanaga, Nobutatsu Koshobu +1 more |
2023-08-29 |
| 11733584 |
Wavelength conversion apparatus |
Koji Embutsu, Nobutatsu Koshobu, Ryoichi Kasahara, Takeshi Umeki, Osamu Tadanaga +1 more |
2023-08-22 |
| 11644735 |
Wavelength conversion element |
Osamu Tadanaga, Takahiro Kashiwazaki, Takeshi Umeki, Koji Embutsu, Nobutatsu Koshobu +1 more |
2023-05-09 |
| 11561353 |
Optical circuit |
Yuta Ueda, Hiroyuki Ishii, Koji Takeda, Hitoshi Wakita |
2023-01-24 |