Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11042082 | Projection optical system including movable lens groups, a non-movable lens group, and a curved mirror | Yohei Takano, Hibiki Tatsuno, Nobuyuki Arai | 2021-06-22 |
| 10890840 | Projection optical system unit, projection optical system, and projection optical apparatus | Yohei Takano | 2021-01-12 |
| 10725369 | Light source device and image display apparatus | Kasumi Nakamura, Yohei Takano, Naoki Nakamura | 2020-07-28 |
| 10241308 | Projection optical system including movable lens groups and image display apparatus | Yohei Takano, Hibiki Tatsuno, Nobuyuki Arai | 2019-03-26 |
| 9766438 | Projection optical system and image display apparatus including a refraction optical system and first and second reflecing surfaces | Yohei Takano, Hibiki Tatsuno, Nobuyuki Arai | 2017-09-19 |
| 9261767 | Projection optical system and image display apparatus | Yohei Takano, Hibiki Tatsuno, Nobuyuki Arai | 2016-02-16 |
| 8885232 | Scanner lens, image reader and image forming device | Masahiro Itoh | 2014-11-11 |
| 8854701 | Image-forming lens, image reader, and image-forming device | Kiichiro Nishina, Masahiro Itoh | 2014-10-07 |