Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10962709 | Optical fiber and optical fiber grating | Shigehiro Nagano, Masakazu Shigehara | 2021-03-30 |
| 10919480 | Retainer and gas generator | Masato Hirooka, Koji Yamamoto | 2021-02-16 |