Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11042082 | Projection optical system including movable lens groups, a non-movable lens group, and a curved mirror | Hibiki Tatsuno, Nobuyuki Arai, Hirotoshi Nakayama | 2021-06-22 |
| 10962750 | Projection optical system, projection apparatus, and projection system | Hibiki Tatsuno, Yasuyuki Shibayama | 2021-03-30 |
| 10942434 | Light source optical system, light source device, and image projection apparatus | Tatsuya Takahashi, Kasumi Nakamura | 2021-03-09 |
| 10890840 | Projection optical system unit, projection optical system, and projection optical apparatus | Hirotoshi Nakayama | 2021-01-12 |