Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671096 | Diffractive optical element and an optical system having a diffractive optical element | — | 2003-12-30 |
| 6590709 | Diffractive optical element and method of manufacturing a mold | Yuichiro Ori, Koji MIYAI, Hiromu Mukai | 2003-07-08 |
| 6516152 | Focusing screen for use in camera | Hiromu Mukai | 2003-02-04 |