Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10809428 | Optical filter and imaging device | Keigo Matsuura, Sayuri Higashitamori, Hiroki Hotaka | 2020-10-20 |
| 10745572 | Squarylium-based dye for near-infrared optical filter | Keigo Matsuura, Hiroki Hotaka | 2020-08-18 |
| 10746908 | Optical filter and imaging device | Yoshiharu Ooi, Hiroshi Kumai, Hiroki Hotaka | 2020-08-18 |
| 10598834 | Near-infrared light blocking optical filter having high visible light transmission and an imaging device using the optical filter | Keigo Matsuura, Hiroki Hotaka | 2020-03-24 |