Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440586 | Benzopyran compound, material for luminous device, and luminous device using the same | Terukazu Yanagi, Hisashi Okada | 2002-08-27 |
| 6379823 | Electroluminescence device, cyclic azine compound and production process of cyclic azine dye | Kazumi Nii | 2002-04-30 |
| 6358634 | Nitrogen-containing heterocyclic compound, organic light-emitting device material and organic light-emitting device | Hisashi Okada | 2002-03-19 |