Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684679 | Switching mode power supply capable of reducing the response time thereof | — | 1997-11-04 |
| 5631549 | Linear regulator power supply with an overcurrent protection device | — | 1997-05-20 |
| 5557056 | Performance evaluator for use in a karaoke apparatus | Ul-Je Kim | 1996-09-17 |
| 5442494 | Video cassette recorder power supply capable of breaking supply voltage to audio apparatus | — | 1995-08-15 |