Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10858883 | Optical body, window material, and roll screen | Atsushi Shibuya, Tsutomu Nagahama | 2020-12-08 |
| 10859735 | Diffuser plate, display device, projection device, and lighting device | Masayuki Ishiwata, Tsutomu Nagahama | 2020-12-08 |