Inventor · disambiguated record
Hwan-Koo Lee
Also filed as: LEE HWAN-KOO
25 granted patents·21 pending applications·159 citations·filing 2001–2012
94Inventor score
Top patents by PatentIndex Score
46 records- 0197US6670085B2Electrophotographic organophotoreceptors with novel charge transport compoundsSAMSUNG ELECTRONICS CO LTD·Filed 2001·Granted Dec 30, 2003·85 cites·23 claims
- 0286US7354534B2Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2006·Granted Apr 8, 2008·7 cites·4 claims
- 0373US6887634B2Electrophotographic organophotoreceptors with novel charge transport compoundsSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted May 3, 2005·10 cites·25 claims
- 0472US7172843B2Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Feb 6, 2007·10 cites·18 claims
- 0567US7396624B2Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Jul 8, 2008·1 cites·9 claims
- 0667US7112391B2Electrophotographic organophotoreceptors with novel charge transport compoundsSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Sep 26, 2006·2 cites·10 claims
- 0763US7432029B2Electrophotographic photoreceptor containing asymmetrical naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Oct 7, 2008·2 cites·10 claims
- 0862US7045264B2Single layered electrophotographic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted May 16, 2006·8 cites·25 claims
- 0961US7494754B2Electrophotographic photoreceptor containing asymmetric naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2006·Granted Feb 24, 2009·3 cites·17 claims
- 1058US7291429B2Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material using the derivativesSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Nov 6, 2007·6 cites·13 claims
- 1157US7115346B2Multi-layered electrophotographic positively charged organic photoconductor and manufacturing method thereofSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Oct 3, 2006·7 cites·11 claims
- 1257US7078139B2Electrophotographic photoreceptor for wet developmentSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Jul 18, 2006·7 cites·24 claims
- 1355US7449270B2Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives as electron transport materials in charge generating layer and the electrophotographic imaging apparatus using the photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2006·Granted Nov 11, 2008·1 cites·9 claims
- 1453US2005186492A1Electrophotographic photoreceptor and electrophotographic imaging apparatus using the sameSAMSUNG ELECTRONICS CO LTD·Filed 2005·Application pending·0 cites
- 1548US6949322B2Composition for forming overcoat layer for organophotoreceptor using polyaminoether and organophotoreceptor employing overcoat layer prepared from the compositionSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Sep 27, 2005·3 cites·19 claims
- 1646US2006142444A1Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2006·Application pending·0 cites
- 1745US2006003243A1Positively-charged electrophotographic organophotoreceptor, and method of manufactureSAMSUNG ELECTRONICS CO LTD·Filed 2005·Application pending·0 cites
- 1844US7217482B2Electrophotographic photoreceptor containing a chelate compoundSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted May 15, 2007·2 cites·21 claims
- 1943US7083883B2Polymer having stilbenquinone structure and electrophotographic photoreceptor containing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Aug 1, 2006·2 cites·54 claims
- 2042US7413836B2Electrophotographic photoreceptor containing asymmetrical naphthalenetetracarboxylic acid diimide derivative as electron transporting material in a charge generating layer and electrophotographic image forming apparatus employing the photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2006·Granted Aug 19, 2008·0 cites·16 claims
- 2141US2013105375A1Ballast water treatment system using a high efficient electrolyzing apparatusAQUA ENG CO LTD·Filed 2012·Application pending·0 cites
- 2241US2009136860A1Electrophotographic photoreceptor containing bisazo-based compound as a charge generating material in a charge transporting layer and electrophotographic imaging apparatus employing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2008·Application pending·0 cites
- 2340US7314692B2Phenylazomethylene-cyclohexadienone derivatives comprising electron withdrawing group and electrophotographic photoreceptor comprising the derivativesSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Jan 1, 2008·1 cites·28 claims
- 2440US7169519B2Double-layered positively-charged organic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Jan 30, 2007·1 cites·8 claims
- 2540US7157196B2Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material having the sameSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Jan 2, 2007·1 cites·11 claims
- 2639US2009061341A1Electrophotographic photoreceptor having improved dark decay characteristics and electrophotographic imaging apparatus employing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2008·Application pending·0 cites
- 2739US2008160439A1Electrophotographic photoreceptor, method of preparation, and electrophotographic imaging apparatusSAMSUNG ELECTRONICS CO LTD·Filed 2007·Application pending·0 cites
- 2838US2008014515A1Organic photoreceptor and electrophotographic image forming apparatus including the organic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2006·Application pending·0 cites
- 2938US2007105032A1Titanyl phthalocyanine crystal and manufacturing method thereof and electrophotographic photoreceptor and electrophotographic imaging apparatus using the photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2006·Application pending·0 cites
- 3037US2006292467A1Electrophotographic photoreceptor containing electron transporting material in a charge generating layerSAMSUNG ELECTRONICS CO LTD·Filed 2006·Application pending·0 cites
- 3137US2006183043A1Electrophotographic photoreceptor containing pyridine-substituted asymmetric naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatusSAMSUNG ELECTRONICS CO LTD·Filed 2006·Application pending·0 cites
- 3237US2006292468A1Electrophotographic photoreceptor for blue-violet exposure light source and electrophotographic imaging apparatus employing the photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2006·Application pending·0 cites
- 3336US7452641B2Electrophotographic organophotoreceptors with novel charge transport compoundsSAMSUNG ELECTRONICS CO LTD·Filed 2005·Granted Nov 18, 2008·0 cites·3 claims
- 3436US2003170555A1Positively-charged electrophotographic organophotoreceptor, and cartridge, drum and image forming apparatus having sameSAMSUNG ELECTRONICS CO LTD·Filed 2003·Application pending·0 cites
- 3536US2006003242A1Method of making coating composition for producing single layered photosensitive layer by using homogenizerSAMSUNG ELECTRONICS CO LTD·Filed 2005·Application pending·0 cites
- 3635US7341811B2Electrophotographic photoreceptor using the electron transferring compoundSAMSUNG ELECTRONICS CO LTD·Filed 2004·Granted Mar 11, 2008·0 cites·12 claims
- 3735US6949321B2Double-layered positively-charged organic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Sep 27, 2005·0 cites·10 claims
- 3834US7060405B2Naphthoquinone derivative and electrophotographic photoreceptor containing the sameSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Jun 13, 2006·0 cites·30 claims
- 3934US2004009419A1Electrophotographic photoreceptor having both excellent mechanical strength and electrical properties and electrophotographic imaging apparatus using the sameSAMSUNG ELECTRONICS CO LTD·Filed 2003·Application pending·0 cites
- 4034US2004143056A1Overcoating composition and organic photoreceptor using the sameSAMSUNG ELECTRONICS CO LTD·Filed 2003·Application pending·0 cites
- 4134US2005031977A1Naphthalene tetracarboxylic diimide based polymer, electrophotographic photoreceptor containing the same, and electrophotographic cartridge, electrophotographic drum and electrophotographic image forming apparatus comprising the electrophotographic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2004·Application pending·0 cites
- 4234US2004063017A1Single layered electrophotographic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2003·Application pending·0 cites
- 4334US2004091801A1Single layered electrophotographic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2003·Application pending·0 cites
- 4431US2011183243A1Electrophotographic photoreceptor and electrophotographic imaging apparatus including the photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2010·Application pending·0 cites
- 4529US7083886B2Single layered electrophotographic photoreceptorSAMSUNG ELECTRONICS CO LTD·Filed 2003·Granted Aug 1, 2006·0 cites·10 claims
- 4626US2004013960A1Single-layered electrophotographic photoreceptor, method, catridge and drum thereforSAMSUNG ELECTRONICS CO LTD·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →