Inventor
LEE HWAN-KOO
KR25 patents
Patents
25 patentsUS6670085B2Dec 30, 2003
Electrophotographic organophotoreceptors with novel charge transport compounds
SAMSUNG ELECTRONICS CO LTD85 citations98
US7172843B2Feb 6, 2007
Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same
SAMSUNG ELECTRONICS CO LTD10 citations82
US6887634B2May 3, 2005
Electrophotographic organophotoreceptors with novel charge transport compounds
SAMSUNG ELECTRONICS CO LTD10 citations74
US7291429B2Nov 6, 2007
Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material using the derivatives
SAMSUNG ELECTRONICS CO LTD6 citations73
US7045264B2May 16, 2006
Single layered electrophotographic photoreceptor
SAMSUNG ELECTRONICS CO LTD8 citations73
US7354534B2Apr 8, 2008
Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same
SAMSUNG ELECTRONICS CO LTD7 citations72
US7115346B2Oct 3, 2006
Multi-layered electrophotographic positively charged organic photoconductor and manufacturing method thereof
SAMSUNG ELECTRONICS CO LTD7 citations71
US7078139B2Jul 18, 2006
Electrophotographic photoreceptor for wet development
SAMSUNG ELECTRONICS CO LTD7 citations69
US7112391B2Sep 26, 2006
Electrophotographic organophotoreceptors with novel charge transport compounds
SAMSUNG ELECTRONICS CO LTD2 citations63
US7494754B2Feb 24, 2009
Electrophotographic photoreceptor containing asymmetric naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same
SAMSUNG ELECTRONICS CO LTD3 citations62
US7432029B2Oct 7, 2008
Electrophotographic photoreceptor containing asymmetrical naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the photoreceptor
SAMSUNG ELECTRONICS CO LTD2 citations62
US7217482B2May 15, 2007
Electrophotographic photoreceptor containing a chelate compound
SAMSUNG ELECTRONICS CO LTD2 citations62
US7083883B2Aug 1, 2006
Polymer having stilbenquinone structure and electrophotographic photoreceptor containing the same
SAMSUNG ELECTRONICS CO LTD2 citations62
US6949322B2Sep 27, 2005
Composition for forming overcoat layer for organophotoreceptor using polyaminoether and organophotoreceptor employing overcoat layer prepared from the composition
SAMSUNG ELECTRONICS CO LTD3 citations62
US7169519B2Jan 30, 2007
Double-layered positively-charged organic photoreceptor
SAMSUNG ELECTRONICS CO LTD1 citations52
US6949321B2Sep 27, 2005
Double-layered positively-charged organic photoreceptor
SAMSUNG ELECTRONICS CO LTD0 citations52
US7396624B2Jul 8, 2008
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same
SAMSUNG ELECTRONICS CO LTD1 citations51
US7314692B2Jan 1, 2008
Phenylazomethylene-cyclohexadienone derivatives comprising electron withdrawing group and electrophotographic photoreceptor comprising the derivatives
SAMSUNG ELECTRONICS CO LTD1 citations51
US7157196B2Jan 2, 2007
Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material having the same
SAMSUNG ELECTRONICS CO LTD1 citations51
US7449270B2Nov 11, 2008
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives as electron transport materials in charge generating layer and the electrophotographic imaging apparatus using the photoreceptor
SAMSUNG ELECTRONICS CO LTD1 citations50
US7413836B2Aug 19, 2008
Electrophotographic photoreceptor containing asymmetrical naphthalenetetracarboxylic acid diimide derivative as electron transporting material in a charge generating layer and electrophotographic image forming apparatus employing the photoreceptor
SAMSUNG ELECTRONICS CO LTD0 citations41
US7341811B2Mar 11, 2008
Electrophotographic photoreceptor using the electron transferring compound
SAMSUNG ELECTRONICS CO LTD0 citations41
US7060405B2Jun 13, 2006
Naphthoquinone derivative and electrophotographic photoreceptor containing the same
SAMSUNG ELECTRONICS CO LTD0 citations41
US7452641B2Nov 18, 2008
Electrophotographic organophotoreceptors with novel charge transport compounds
SAMSUNG ELECTRONICS CO LTD0 citations37
US7083886B2Aug 1, 2006
Single layered electrophotographic photoreceptor
SAMSUNG ELECTRONICS CO LTD0 citations36