Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809829 | Method and apparatus for evaluating aberrations of optical element and method and apparatus for adjusting optical unit and lens | Kazumasa Takata, Kanji Nishii | 2004-10-26 |
| 6538749 | Method and apparatus for evaluating aberrations of optical element for use with optical device by using phase differences determined by overlapping two diffracted lights to form a sharing image | Kazumasa Takata, Kanji Nishii | 2003-03-25 |
| 5920387 | Apparatus and method for surface inspection | Ken Tatsuta | 1999-07-06 |