Inventor
CHOI JEONG-JAI
KR13 patents
⚠️ This page may combine multiple inventors who share the name “CHOI JEONG-JAI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG ELECTRONICS CO LTD
12 patentsUS7333763B2Feb 19, 2008
Developer collecting apparatus and an image forming apparatus having the same
SAMSUNG ELECTRONICS CO LTD10 citations82
US8351810B2Jan 8, 2013
Method and apparatus for controlling voltage of image forming apparatus
SAMSUNG ELECTRONICS CO LTD2 citations61
US7574159B2Aug 11, 2009
Image forming apparatus and method of preventing carrier from adhering to photo receptor
SAMSUNG ELECTRONICS CO LTD2 citations61
US7392000B2Jun 24, 2008
Image forming apparatus to control a linear velocity ratio
SAMSUNG ELECTRONICS CO LTD2 citations61
US7382991B2Jun 3, 2008
Apparatus and method for displaying toner residual quantity
SAMSUNG ELECTRONICS CO LTD2 citations61
US7116927B2Oct 3, 2006
Photosensitive drum of image forming apparatus and method of damping vibration in the drum
SAMSUNG ELECTRONICS CO LTD4 citations61
US7092648B2Aug 15, 2006
Method of controlling an amount of toner charging in an electrophotographic image forming apparatus and apparatus using the same
SAMSUNG ELECTRONICS CO LTD2 citations61
US6954597B2Oct 11, 2005
Electrophotographic image-forming apparatus using two-component developer and print density control method thereof
SAMSUNG ELECTRONICS CO LTD2 citations61
US7809302B2Oct 5, 2010
Charging device and image forming apparatus using the same
SAMSUNG ELECTRONICS CO LTD0 citations50
US7398037B2Jul 8, 2008
Process cartridge usable with an image forming apparatus and including a shutter
SAMSUNG ELECTRONICS CO LTD0 citations50
US7536119B2May 19, 2009
Image forming apparatus and a method thereof for supplying toner
SAMSUNG ELECTRONICS CO LTD0 citations40
US6801732B2Oct 5, 2004
Developing apparatus of electric photographic printer
SAMSUNG ELECTRONICS CO LTD0 citations40