Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789902 | Projection optical system and projector using the same | Kohtaro Hayashi, Tomokazu Taguchi | 2004-09-14 |
| 6791750 | Polarization beam splitter | Kohtaro Hayashi | 2004-09-14 |
| 6761458 | Rear projection optical system | Shigeyoshi Sakata | 2004-07-13 |