Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6086212 | Panel light source device and display comprising it | Ikuo Onishi, Katsuya Fujisawa, Toshiyuki Yoshikawa | 2000-07-11 |
| 6067137 | Image display apparatus with hydrophobic diffraction grating for an enlarged viewing angle | Ikuo Ohnishi, Katsuya Fujisawa, Katsuhiko Hayashi | 2000-05-23 |
| 6002464 | Light diffusing sheet having a layer incorporated with light diffusing material and a layer with a corrugated surface | Katsuya Fujisawa, Ikuo Ohnishi, Katsuhiko Hayashi | 1999-12-14 |
| 5513025 | Image display apparatus | Katsuya Fujisawa, Ikuo Onishi | 1996-04-30 |