Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6921589 | Electroluminescent elements | Akira Kohama, Tsuyoshi Tominaga, Daisuke Kitazawa | 2005-07-26 |
| 6878209 | Organic electroluminescent device | Shigeo Fujimori, Akira Kohama | 2005-04-12 |