Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11789147 | Semiconductor optical amplifier, optical output device, and distance measuring device | Junichiro HAYAKAWA, Akemi Murakami, Fumio Koyama | 2023-10-17 |
| 11658464 | Semiconductor optical amplifier | Junichiro HAYAKAWA, Akemi Murakami | 2023-05-23 |
| 11444436 | Semiconductor optical amplifier, semiconductor optical amplification device, optical output device, and distance measuring device | Junichiro HAYAKAWA, Akemi Murakami, Fumio Koyama | 2022-09-13 |