Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE36339 | Circuit for tape duplication in video tape recorder | Jong Kyung Yun | 1999-10-12 |
| 5057934 | Circuit for tape duplication in video tape recorder | Jong Kyung Yun | 1991-10-15 |