Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009447 | Energy effective switching power supply apparatus and an energy effective method thereof | — | 2011-08-30 |
| 7986136 | Switching mode power supply apparatus and power supply method thereof | — | 2011-07-26 |
| 7885567 | Printing apparatus and a method of controlling a power supply to a heating roller and to a phase control circuit | Young-min Chae | 2011-02-08 |