Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9395470 | Molded-article manufacturing method, mold, and optical element including fresnel lens | — | 2016-07-19 |
| 8184386 | Fresnel lens and injection mold | Yusuke Ohmura | 2012-05-22 |