Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7274411 | Liquid crystal display device | Shoichi Hirota, Makoto Tsumura, Iwao Takemoto | 2007-09-25 |
| 7148936 | Color-separation/synthesis optical system with particular cut-off wavelengths and emission-side polarizer and projection type liquid crystal display device using the same | Shoichi Hirota, Iwao Takemoto, Hideki Nakagawa | 2006-12-12 |
| 6501523 | Liquid crystal display element and a display device having a homeotropic alignment | Shoichi Hirota, Makoto Tsumura, Iwao Takemoto | 2002-12-31 |
| 6454416 | Color liquid crystal projector having an improved optical system | Kaoru Yanagawa | 2002-09-24 |