Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187968 | Image projection device | Katsu Yamada | 2021-11-30 |
| 10928720 | Projection optical system, image projection device and image projection system | Katsu Yamada | 2021-02-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187968 | Image projection device | Katsu Yamada | 2021-11-30 |
| 10928720 | Projection optical system, image projection device and image projection system | Katsu Yamada | 2021-02-23 |