loadpatents
name:-0.05168604850769
name:-0.029200077056885
name:-0.00094914436340332
Lee; Hwan-koo Patent Filings

Lee; Hwan-koo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Lee; Hwan-koo.The latest application filed is for "ballast water treatment system using a high efficient electrolyzing apparatus".

Company Profile
0.25.46
  • Lee; Hwan-koo - Busan KR
  • Lee; Hwan-koo - Suwon-si KR
  • Lee; Hwan Koo - Suwon KR
  • Lee; Hwan-koo - Gyeonggi-do KR
  • Lee, Hwan Koo - Suwon City KR
  • Lee, Hwan-koo - Gyeanggi-do KR
  • Lee; Hwan Koo - Changan-Gu KR
*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Patent Activity
PatentDate
Ballast Water Treatment System Using A High Efficient Electrolyzing Apparatus
App 20130105375 - Sohn; Young-jun ;   et al.
2013-05-02
Electrophotographic Photoreceptor And Electrophotographic Imaging Apparatus Including The Photoreceptor
App 20110183243 - AHN; Yong-jin ;   et al.
2011-07-28
Electrophotographic Photoreceptor Containing Bisazo-based Compound As A Charge Generating Material In A Charge Transporting Layer And Electrophotographic Imaging Apparatus Employing The Same
App 20090136860 - Kim; Beom-jun ;   et al.
2009-05-28
Electrophotographic Photoreceptor Having Improved Dark Decay Characteristics And Electrophotographic Imaging Apparatus Employing The Same
App 20090061341 - KIM; Seung-ju ;   et al.
2009-03-05
Electrophotographic photoreceptor containing asymmetric naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same
Grant 7,494,754 - Kim , et al. February 24, 2
2009-02-24
Electrophotographic organophotoreceptors with novel charge transport compounds
Grant 7,452,641 - Jubran , et al. November 18, 2
2008-11-18
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives as electron transport materials in charge generating layer and the electrophotographic imaging apparatus using the photoreceptor
Grant 7,449,270 - Kim , et al. November 11, 2
2008-11-11
Electrophotographic photoreceptor containing asymmetrical naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the photoreceptor
Grant 7,432,029 - Kim , et al. October 7, 2
2008-10-07
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
Grant 7,413,836 - Kim , et al. August 19, 2
2008-08-19
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same
Grant 7,396,624 - Kim , et al. July 8, 2
2008-07-08
Electrophotographic photoreceptor, method of preparation, and electrophotographic imaging apparatus
App 20080160439 - Yokota; Saburo ;   et al.
2008-07-03
Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same
Grant 7,354,534 - Lee , et al. April 8, 2
2008-04-08
Electrophotographic photoreceptor using the electron transferring compound
Grant 7,341,811 - Kim , et al. March 11, 2
2008-03-11
Organic photoreceptor and electrophotographic image forming apparatus including the organic photoreceptor
App 20080014515 - Yokota; Saburo ;   et al.
2008-01-17
Phenylazomethylene-cyclohexadienone derivatives comprising electron withdrawing group and electrophotographic photoreceptor comprising the derivatives
Grant 7,314,692 - Kim , et al. January 1, 2
2008-01-01
Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material using the derivatives
Grant 7,291,429 - Kim , et al. November 6, 2
2007-11-06
Electrophotographic photoreceptor containing a chelate compound
Grant 7,217,482 - Kim , et al. May 15, 2
2007-05-15
Titanyl phthalocyanine crystal and manufacturing method thereof and electrophotographic photoreceptor and electrophotographic imaging apparatus using the photoreceptor
App 20070105032 - Yokota; Saburo ;   et al.
2007-05-10
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivative as electron transporting material in a charge generating layer and electrophotographic image forming apparatus employing the photoreceptor
App 20070065740 - Kim; Seung-ju ;   et al.
2007-03-22
Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same
Grant 7,172,843 - Lee , et al. February 6, 2
2007-02-06
Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same
App 20070026331 - Lee; Nam-jeong ;   et al.
2007-02-01
Double-layered positively-charged organic photoreceptor
Grant 7,169,519 - Lee , et al. January 30, 2
2007-01-30
Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material having the same
Grant 7,157,196 - Kim , et al. January 2, 2
2007-01-02
Electrophotographic photoreceptor containing electron transporting material in a charge generating layer
App 20060292467 - Kim; Beom-jun ;   et al.
2006-12-28
Electrophotographic photoreceptor for blue-violet exposure light source and electrophotographic imaging apparatus employing the photoreceptor
App 20060292468 - Yokota; Saburo ;   et al.
2006-12-28
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives as electron transport materials in charge generating layer and the electrophotographic imaging apparatus using the photoreceptor
App 20060281020 - Kim; Beom-jun ;   et al.
2006-12-14
Multi-layered electrophotographic positively charged organic photoconductor and manufacturing method thereof
Grant 7,115,346 - Yokota , et al. October 3, 2
2006-10-03
Electrophotographic organophotoreceptors with novel charge transport compounds
Grant 7,112,391 - Jubran , et al. September 26, 2
2006-09-26
Electrophotographic photoreceptor containing asymmetric naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same
App 20060183044 - Kim; Beom-jun ;   et al.
2006-08-17
Electrophotographic photoreceptor containing pyridine-substituted asymmetric naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus
App 20060183043 - Kim; Seung-ju ;   et al.
2006-08-17
Single layered electrophotographic photoreceptor
Grant 7,083,886 - Yokota , et al. August 1, 2
2006-08-01
Polymer having stilbenquinone structure and electrophotographic photoreceptor containing the same
Grant 7,083,883 - Kim , et al. August 1, 2
2006-08-01
Electrophotographic photoreceptor for wet development
Grant 7,078,139 - Yokota , et al. July 18, 2
2006-07-18
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the photoreceptor
App 20060147825 - Kim; Seung-ju ;   et al.
2006-07-06
Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same
App 20060142444 - Lee; Nam-jeong ;   et al.
2006-06-29
Naphthoquinone derivative and electrophotographic photoreceptor containing the same
Grant 7,060,405 - Kim , et al. June 13, 2
2006-06-13
Single layered electrophotographic photoreceptor
Grant 7,045,264 - Yokota , et al. May 16, 2
2006-05-16
Positively-charged electrophotographic organophotoreceptor, and method of manufacture
App 20060003243 - Lee; Nam-jeong ;   et al.
2006-01-05
Method of making coating composition for producing single layered photosensitive layer by using homogenizer
App 20060003242 - Lee; Hwan-koo ;   et al.
2006-01-05
Electrophotographic photoreceptor containing naphthalenetetracarboxylic acid diimide derivatives and electrophotographic imaging apparatus employing the same
App 20050227156 - Kim, Beom-jun ;   et al.
2005-10-13
Double-layered positively-charged organic photoreceptor
Grant 6,949,321 - Lee , et al. September 27, 2
2005-09-27
Composition for forming overcoat layer for organophotoreceptor using polyaminoether and organophotoreceptor employing overcoat layer prepared from the composition
Grant 6,949,322 - Lee , et al. September 27, 2
2005-09-27
Electrophotographic photoreceptor and electrophotographic imaging apparatus using the same
App 20050186492 - Yokota, Saburo ;   et al.
2005-08-25
Electrophotographic organophotoreceptors with novel charge transport compounds
App 20050147906 - Jubran, Nusrallah ;   et al.
2005-07-07
Phenylazomethylene-cyclohexadienone derivatives comprising electron withdrawing group and electrophotographic photoreceptor comprising the derivatives
App 20050130051 - Kim, Beom-jun ;   et al.
2005-06-16
Electron transferring compound and electrophotographic photoreceptor using the electron transferring compound
App 20050118519 - Kim, Beom-jun ;   et al.
2005-06-02
Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material using the derivatives
App 20050112482 - Kim, Beom-jun ;   et al.
2005-05-26
Electrophotographic photoreceptor containing a chelate compound
App 20050112486 - Kim, Beom-jun ;   et al.
2005-05-26
Electrophotographic organophotoreceptors with novel charge transport compounds
Grant 6,887,634 - Jubran , et al. May 3, 2
2005-05-03
Electrophotographic organophotoreceptors with novel charge transport compounds
App 20050074683 - Jubran, Nusrallah ;   et al.
2005-04-07
Naphthalene tetracarboxylic diimide based polymer, electrophotographic photoreceptor containing the same, and electrophotographic cartridge, electrophotographic drum and electrophotographic image forming apparatus comprising the electrophotographic photoreceptor
App 20050031977 - Kim, Seung-ju ;   et al.
2005-02-10
Naphthalenetetracarboxylic acid diimide derivatives and electrophotographic photoconductive material having the same
App 20050003286 - Kim, Seung-ju ;   et al.
2005-01-06
Naphthoquinone derivative and electrophotographic photoreceptor containing the same
App 20040156651 - Kim, Beom-jun ;   et al.
2004-08-12
Electrophotographic organophotoreceptors with novel charge transport compounds
App 20040151998 - Jubran, Nusrallah ;   et al.
2004-08-05
Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same
App 20040142260 - Lee, Nam-jeong ;   et al.
2004-07-22
Overcoating composition and organic photoreceptor using the same
App 20040143056 - Lee, Nam-Jeong ;   et al.
2004-07-22
Electrophotographic photoreceptor for wet development
App 20040137345 - Yokota, Saburo ;   et al.
2004-07-15
Multi-layered electrophotographic positively charged organic photoconductor and manufacturing method thereof
App 20040121251 - Yokota, Saburo ;   et al.
2004-06-24
Single layered electrophotographic photoreceptor
App 20040121252 - Yokota, Saburo ;   et al.
2004-06-24
Polymer having stilbenquinone structure and electrophotographic photoreceptor containing the same
App 20040096762 - Kim, Beom-Jun ;   et al.
2004-05-20
Double-layered positively-charged organic photoreceptor
App 20040091802 - Lee, Nam-Jeong ;   et al.
2004-05-13
Single layered electrophotographic photoreceptor
App 20040091801 - Joo, Hae-ree ;   et al.
2004-05-13
Double-layered positively-charged organic photoreceptor
App 20040081902 - Lee, Nam-Jeong ;   et al.
2004-04-29
Single layered electrophotographic photoreceptor
App 20040063017 - Lee, Hwan koo ;   et al.
2004-04-01
Single-layered electrophotographic photoreceptor, method, catridge and drum therefor
App 20040013960 - Lim, An-Kee ;   et al.
2004-01-22
Electrophotographic photoreceptor having both excellent mechanical strength and electrical properties and electrophotographic imaging apparatus using the same
App 20040009419 - Yokota, Saburo ;   et al.
2004-01-15
Electrophotographic organophotoreceptors with novel charge transport compounds
Grant 6,670,085 - Jubran , et al. December 30, 2
2003-12-30
Composition for forming overcoat layer for organophotoreceptor using polyaminoether and organophotoreceptor employing overcoat layer prepared from the composition
App 20030235431 - Lee, Nam-Jeong ;   et al.
2003-12-25
Single layered electrophotographic photoreceptor
App 20030235771 - Yokota, Saburo ;   et al.
2003-12-25
Positively-charged electrophotographic organophotoreceptor, and cartridge, drum and image forming apparatus having same
App 20030170555 - Lee, Nam-Jeong ;   et al.
2003-09-11
Electrophotographic organophotoreceptors with novel charge transport compounds
App 20030129513 - Jubran, Nusrallah ;   et al.
2003-07-10

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