Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9766438 | Projection optical system and image display apparatus including a refraction optical system and first and second reflecing surfaces | Hibiki Tatsuno, Nobuyuki Arai, Hirotoshi Nakayama | 2017-09-19 |
| 9690084 | Projection device and projection system | — | 2017-06-27 |
| 9645371 | Projection optical system and projector apparatus | — | 2017-05-09 |