Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10139606 | Zoom lens for forming high-definition image and image projection apparatus having the same | — | 2018-11-27 |
| 10012815 | Projection optical system and projection type display apparatus using the same | — | 2018-07-03 |
| 9958652 | Imaging optical system, image projection optical system and image projection apparatus | — | 2018-05-01 |