Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819414 | ABERRATION MEASURING APPARATUS, ABERRATION MEASURING METHOD, PROJECTION EXPOSURE APPARATUS HAVING THE SAME MEASURING APPARATUS, DEVICE MANUFACTURING METHOD USING THE SAME MEASURING METHOD, AND EXPOSURE METHOD | — | 2004-11-16 |
| 6760299 | Optical disc having pits of different depth formed therein, optical disc device for reproducing the same, and method of reproduction | Junsaku Nakajima, Masaru Nomura | 2004-07-06 |
| 6728183 | Optical disk device | Junsaku Nakajima | 2004-04-27 |