| 9164529 |
High voltage power supply and method of outputting plus/minus high-voltage in image forming apparatuses |
Chul-woo Oh |
2015-10-20 |
| 9008531 |
Constant current-type high-voltage power supply apparatus and method of controlling power output from the same |
Chul-woo Oh |
2015-04-14 |
| 8755198 |
Modular control and driving device and high voltage power supply having the same for image forming apparatus |
Sung-jo Jo |
2014-06-17 |
| 8634738 |
High voltage power supply and method of outputting plus/minus high-voltage in image forming apparatuses |
Chul-woo Oh |
2014-01-21 |
| 8487475 |
Power supply apparatus and method of supplying power |
Joong-gi Kwon, Jong-yang Choo, Chul-woo Oh |
2013-07-16 |
| 8350407 |
High voltage power supply apparatus |
Joong-gi Kwon, Jong-yang Choo, Chul-woo Oh |
2013-01-08 |
| 8340539 |
Constant current-type high-voltage power supply apparatus and method of controlling power output from the same |
Chul-woo Oh |
2012-12-25 |
| 8274176 |
Power supply apparatus |
Joong-gi Kwon, Jong-yang Choo, Chul-woo Oh |
2012-09-25 |
| 8213824 |
High voltage power controlling apparatus of image forming apparatus and method thereof |
Chul-woo Oh |
2012-07-03 |
| 7986534 |
Apparatus to generate high voltage by digital control and method thereof |
Young-min Chae, Joong-gi Kwon, Chul-woo Oh, Sang-yong Han |
2011-07-26 |
| 7961444 |
High voltage power supply |
— |
2011-06-14 |
| 7907864 |
High voltage power controlling apparatus of image forming apparatus including multiple DC power supplies |
Chul-woo Oh |
2011-03-15 |
| 7852648 |
Power supply control apparatus and method of using the same |
— |
2010-12-14 |
| 7821798 |
High voltage power supply |
Chul-woo Oh |
2010-10-26 |
| 7706122 |
Analog control ASIC apparatus for high voltage power supply in image forming apparatus and method for controlling high voltage power supply |
Young-min Chae, Joong-gi Kwon, Chul-woo Oh, Sang-yong Han |
2010-04-27 |
| 7630215 |
Power apparatus and method to provide high voltage |
— |
2009-12-08 |
| 7535121 |
High voltage power supply apparatus and method of correcting current output from the apparatus |
Young-min Chae |
2009-05-19 |
| 7508095 |
Apparatus to generate high voltage by digital control and method thereof |
Young-min Chae, Joong-gi Kwon, Chul-woo Oh, Sang-yong Han |
2009-03-24 |
| 7474542 |
High voltage power supply |
— |
2009-01-06 |
| 7443704 |
AC high voltage detecting device |
Chul-woo Oh |
2008-10-28 |
| 7088597 |
High voltage supply device for eliminating a surge voltage |
— |
2006-08-08 |
| 6674271 |
Power supply control apparatus and method thereof |
Jong-yang Choo, Joong-gi Kwon, Han-chung Ryu |
2004-01-06 |
