Inventor
CHO JONG-HWA
KR22 patents
⚠️ This page may combine multiple inventors who share the name “CHO JONG-HWA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG ELECTRONICS CO LTD
15 patentsUS6674271B2Jan 6, 2004
Power supply control apparatus and method thereof
SAMSUNG ELECTRONICS CO LTD60 citations94
US7088597B2Aug 8, 2006
High voltage supply device for eliminating a surge voltage
SAMSUNG ELECTRONICS CO LTD7 citations73
US7852648B2Dec 14, 2010
Power supply control apparatus and method of using the same
SAMSUNG ELECTRONICS CO LTD3 citations62
US7706122B2Apr 27, 2010
Analog control ASIC apparatus for high voltage power supply in image forming apparatus and method for controlling high voltage power supply
SAMSUNG ELECTRONICS CO LTD2 citations62
US9164529B2Oct 20, 2015
High voltage power supply and method of outputting plus/minus high-voltage in image forming apparatuses
SAMSUNG ELECTRONICS CO LTD0 citations51
US9008531B2Apr 14, 2015
Constant current-type high-voltage power supply apparatus and method of controlling power output from the same
SAMSUNG ELECTRONICS CO LTD0 citations51
US8350407B2Jan 8, 2013
High voltage power supply apparatus
SAMSUNG ELECTRONICS CO LTD0 citations51
US7986534B2Jul 26, 2011
Apparatus to generate high voltage by digital control and method thereof
SAMSUNG ELECTRONICS CO LTD0 citations51
US7907864B2Mar 15, 2011
High voltage power controlling apparatus of image forming apparatus including multiple DC power supplies
SAMSUNG ELECTRONICS CO LTD0 citations51
US7630215B2Dec 8, 2009
Power apparatus and method to provide high voltage
SAMSUNG ELECTRONICS CO LTD0 citations51
US7508095B2Mar 24, 2009
Apparatus to generate high voltage by digital control and method thereof
SAMSUNG ELECTRONICS CO LTD0 citations51
US7474542B2Jan 6, 2009
High voltage power supply
SAMSUNG ELECTRONICS CO LTD0 citations51
US7961444B2Jun 14, 2011
High voltage power supply
SAMSUNG ELECTRONICS CO LTD0 citations41
US7535121B2May 19, 2009
High voltage power supply apparatus and method of correcting current output from the apparatus
SAMSUNG ELECTRONICS CO LTD0 citations41
US7821798B2Oct 26, 2010
High voltage power supply
SAMSUNG ELECTRONICS CO LTD0 citations40
OH CHUL-WOO
3 patentsUS7443704B2Oct 28, 2008
AC high voltage detecting device
OH CHUL-WOO5 citations60
US8634738B2Jan 21, 2014
High voltage power supply and method of outputting plus/minus high-voltage in image forming apparatuses
OH CHUL-WOO0 citations50
US8340539B2Dec 25, 2012
Constant current-type high-voltage power supply apparatus and method of controlling power output from the same
OH CHUL-WOO0 citations50
CHO JONG-HWA
3 patentsUS8213824B2Jul 3, 2012
High voltage power controlling apparatus of image forming apparatus and method thereof
CHO JONG-HWA2 citations59
US8487475B2Jul 16, 2013
Power supply apparatus and method of supplying power
CHO JONG-HWA0 citations49
US8274176B2Sep 25, 2012
Power supply apparatus
CHO JONG-HWA1 citations49