Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9841584 | Magnification optical system | Kiichiro Nishina, Yasuyuki Shibayama, Takanobu Osaka, Makoto Hirakawa | 2017-12-12 |
| 9766438 | Projection optical system and image display apparatus including a refraction optical system and first and second reflecing surfaces | Yohei Takano, Nobuyuki Arai, Hirotoshi Nakayama | 2017-09-19 |