Issued Patents 2022
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11442225 | Wavelength conversion element and method for manufacturing wavelength conversion element | Takahiro Kashiwazaki, Osamu Tadanaga, Takeshi Umeki, Koji Embutsu, Takushi Kazama | 2022-09-13 |
| 11385521 | Wavelength conversion apparatus | Takeshi Umeki, Takushi Kazama, Koji Embutsu, Takahiro Kashiwazaki, Osamu Tadanaga | 2022-07-12 |
| 11387909 | Optical signal transmitter | Takushi Kazama, Takeshi Umeki, Takahiro Kashiwazaki, Koji Embutsu, Osamu Tadanaga | 2022-07-12 |
| 11324435 | Heartbeat detection method and heartbeat detection device | Nobuaki Matsuura, Kei Kuwabara, Takayuki Ogasawara, Koji Fujii | 2022-05-10 |
| 11269139 | Waveguide type optical interferometer circuit | Nobutatsu Koshoubu, Katsuhiko Hirabayashi | 2022-03-08 |
| 11234613 | Respiration estimation method and apparatus | Takayuki Ogasawara, Takurou Tajima, Kei Kuwabara, Nobuaki Matsuura | 2022-02-01 |