Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7999103 | Metal complex compound and organic electroluminescence device using the compound | Li-Fen Yang, Masumi Itabashi, Misa Ashizawa, Fumio Okuda | 2011-08-16 |
| 7625639 | Metal-complex compound and organic electroluminescence device using the compound | Fumio Okuda | 2009-12-01 |