Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936189 | Cyclic tertiary amine compound and organic electroluminescent device containing the compound | Wang Guofang, Hajime Yokoi, Takaharu Nakano, Kenji Furukawa | 2005-08-30 |
| 6902832 | Charge-transporting material containing diazapentacene derivative, luminescent material, and organic electroluminescent element employing these | Guofang Wang, Takaharu Nakano, Kenji Furukawa, Keiji Okada, Masatoshi Kozaki | 2005-06-07 |