Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8158971 | Highly efficient organic light-emitting device using substrate or electrode having nanosized half-spherical convex and method for preparing the same | Hyeon Choi | 2012-04-17 |
| 7741145 | Highly efficient organic light-emitting device using substrate or electrode having nanosized half-spherical convex and method for preparing the same | Hyeon Choi | 2010-06-22 |
| 7414263 | Highly efficient organic light-emitting device using substrate or electrode having nanosized half-spherical convex and method for preparing the same | Hyeon Choi | 2008-08-19 |