Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7762165 | Method of manufacturing optical element having annular zones and method of manufacturing mold for forming the same | — | 2010-07-27 |
| 7736552 | Method for producing mold for zonal optical element | — | 2010-06-15 |
| 7640833 | Method of manufacturing molding body having grooves thereon | — | 2010-01-05 |