Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10548211 | Resonant network for plasma power supply and power supply device for plasma generator | Seung Hee Ryu, Chang Seob Lim, Won Yong Sung, Geun Wan Koo, Byoung Kuk Lee | 2020-01-28 |
| 10276344 | Power supply apparatus able to control output current and power supply method using the same | Won Yong Sung, Keun Wan Koo, Byoung Kuk Lee, Seung Hee Ryu, Chang Seob Lim | 2019-04-30 |
| 6696814 | Microprocessor for controlling the speed and frequency of a motor shaft in a power tool | Jeffery L. Henderson, Mark Wardrup, Ivan Reede | 2004-02-24 |
| 5668981 | Apparatus having radiating noise damping means for controlling power appliances | — | 1997-09-16 |
| 5578910 | Skew motor driving circuit | — | 1996-11-26 |