Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6239851 | Planar light source device having polarization separator formed of two sheets with mating triangular prisms and different indices of refraction | Tsuyonobu Hatazawa, Hideki Hayashi, Kozo Nakamura, Takashi Watanabe, Johji Mamiya +1 more | 2001-05-29 |