Issued Patents All Time
Showing 76–85 of 85 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7118811 | Materials for light emitting devices consisting of novel compounds and light emitting devices using the same | Hisashi Okada | 2006-10-10 |
| 6962755 | Light emitting element and azole compound | Tatsuya Igarashi, Yousuke Miyashita, Hidetoshi Fujimura, Masayuki Mishima, Hisashi Okada +1 more | 2005-11-08 |
| 6905787 | Light emitting element | — | 2005-06-14 |
| 6830836 | Heterocyclic compounds, materials for light emitting devices and light emitting devices using the same | Hisashi Okada | 2004-12-14 |
| 6824891 | Light-emitting device and material therefor | Hisashi Okada, Masayuki Mishima, Toshiki Taguchi | 2004-11-30 |
| 6818325 | Light-emitting device | Masayuki Mishima, Hisashi Okada, Katsumi Araki, Xuepeng Qiu | 2004-11-16 |
| 6764777 | Sulfur-containing compound and light-emitting device using same | — | 2004-07-20 |
| 6656612 | Heterocyclic compounds, materials for light emitting devices and light emitting devices using the same | Hisashi Okada | 2003-12-02 |
| 6620529 | Materials for light emitting devices and light emitting devices using the same | Hisashi Okada | 2003-09-16 |
| 6461747 | Heterocyclic compounds, materials for light emitting devices and light emitting devices using the same | Hisashi Okada | 2002-10-08 |