Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805977 | Condensed eight-ring aromatic compound, and organic EL element and organic EL display using the same | Wataru Sotoyama, Hiroyuki Sato, Azuma Matsuura | 2004-10-19 |
| 6803126 | Organic EL element and organic EL display | Wataru Sotoyama, Hiroyuki Sato, Azuma Matsuura | 2004-10-12 |
| 6783872 | Dinaphtopyrene compound, and organic EL element and organic EL display using the same | Wataru Sotoyama, Hiroyuki Sato, Azuma Matsuura | 2004-08-31 |