Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762438 | Organic electroluminescent layer with oligomer hole injection layer | Toshio Sakai, Chishio Hosokawa | 2004-07-13 |
| 6743948 | Organic electroluminescent device | Chishio Hosokawa, Masakazu Funahashi, Hiromasa Arai, Hidetoshi Koga, Hidetsugu Ikeda | 2004-06-01 |