Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10369728 | Optical element and method for manufacturing optical element | Yoshihiro Okumura, Hiroshi Umetsu, Seiji Yuasa | 2019-08-06 |
| 10293518 | Forming mold, optical element, and method for producing optical element | Yoshihiro Okumura | 2019-05-21 |