Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797848 | Anthracene derivative and organic electroluminescence device using the derivative | Chishio Hosokawa, Hidetsugu Ikeda | 2004-09-28 |
| 6743948 | Organic electroluminescent device | Chishio Hosokawa, Hisayuki Kawamura, Hiromasa Arai, Hidetoshi Koga, Hidetsugu Ikeda | 2004-06-01 |