Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11520224 | Projection lens and projection device | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2022-12-06 |
| 11480856 | Projection lens | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2022-10-25 |
| 11448951 | Projection lens and projector | — | 2022-09-20 |
| 11392015 | Projection lens and projection device | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2022-07-19 |