Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6471358 | Lighting device and projector | Yoshitaka Itoh | 2002-10-29 |
| 6470723 | Apparatus for manufacturing internal grooved tube | Tetsuya Sumitomo, Koji Yamamoto | 2002-10-29 |
| 6411449 | Light-selective prism, projection display apparatus using the same, and method of manufacturing light-selective prism | Masami Murata | 2002-06-25 |
| 6394607 | Polarized light separation device, method of fabricating the same and projection display apparatus using the polarized light separation device | Yoshitaka Itoh, Akitaka Yajima | 2002-05-28 |
| 6375328 | Optical modulation element and projector | Shinji Haba, Motoyuki Fujimori | 2002-04-23 |
| 6342971 | Projector using a light-selective prism | Masami Murata | 2002-01-29 |
| 6340050 | Internally grooved heat exchanger pipe and metal bar working roll for internally grooved heat exchanger pipes | Yasutoshi Mori, Kouzi Yamamoto, Kenzi Nakamizo | 2002-01-22 |