Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6392805 | Diffractive optical element and an optical system having a diffractive optical element | — | 2002-05-21 |
| 6393216 | Camera system including a monitor device | Hiroshi Ootsuka, Shinichi Maehama, Katsunori Maeda | 2002-05-21 |