Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812638 | Organic semiconductor diode | Kenji Nakamura | 2004-11-02 |
| 6690028 | Organic electroluminescence element display device with organic semiconductor diodes | Kenji Nakamura | 2004-02-10 |