Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6589672 | Blue color filter and organic electroluminescent device using same | Ryoji Kobayashi, Yotaro Shiraishi | 2003-07-08 |
| 6563263 | Multi-colored organic EL device with protective layer | Toshiyuki Kanno | 2003-05-13 |