Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829111 | Projection lens manufacturing apparatus, projection lens manufacturing method, projection lens manufactured by the projection lens manufacturing method and projector having the projection lens | Shohei Fujisawa, Hirotatsu Okubo | 2004-12-07 |
| 6760096 | Lens-evaluating method and lens-evaluating apparatus | Masashi Kitabayashi, Koichi Kojima | 2004-07-06 |
| 6760097 | Lens evaluation method and lens-evaluating apparatus | Masashi Kitabayashi, Koichi Kojima | 2004-07-06 |
| 6674481 | Display apparatus, marker signal making process, marker signal detector circuit, and control signal generator circuit | Ichiro Sato, Katsuhiro Shimizu | 2004-01-06 |