Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9625733 | Zoom optical system comprising diffractive optical element and imaging device having the same | — | 2017-04-18 |
| 9535240 | Zoom optical system | Yoshikazu Hirayama | 2017-01-03 |