Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906452 | Electroluminescent display device with substrate having regions with different refractive indexes | — | 2005-06-14 |
| 6842272 | Hologram plate and its fabrication process | Keiko Sekine, Hiroshi Kishimoto, Masaki Katsumata, Yoichi Higuchi, Tadatsugu Onuma | 2005-01-11 |