Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9703184 | Dimmer and projector | Kenshi Sakai, Toshihiko Nagumo, Nobuyuki Otsuki, Takuro Onota | 2017-07-11 |
| 9696614 | Projection optical system and projection-type image display device | — | 2017-07-04 |