Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11126064 | Optical wavelength conversion device | — | 2021-09-21 |
| 10962709 | Optical fiber and optical fiber grating | Masakazu Shigehara, Masayuki Yamazaki | 2021-03-30 |
| 10908353 | Optical fiber and slanted fiber grating | Manabu Shiozaki, Jun Kinugasa, Takemi Hasegawa | 2021-02-02 |