Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308608 | Semiconductor optical integrated device | Hiroyuki Ishii, Toshihito Suzuki | 2025-05-20 |
| 11923659 | Optical module, method for controlling wavelength thereof, and method for calibration thereof | Atsushi Yamamoto | 2024-03-05 |
| 11658458 | Optical device | Masahiro Yoshida, Etsuji Katayama | 2023-05-23 |
| 10673205 | Wavelength tunable laser module and method of controlling wavelength thereof | Kengo Muranushi, Atsushi Yamamoto | 2020-06-02 |
| 10333272 | Optical device | Atsushi Yamamoto, Atsushi Shinozaki | 2019-06-25 |
| 10270533 | Wavelength tunable laser module and method of controlling wavelength thereof | Kengo Muranushi, Atsushi Yamamoto | 2019-04-23 |