Inventor · disambiguated record
Cheng-Kuo Hsiao
Also filed as: HSIAO CHENG K · HSIAO CHENG-KUO · LOUTFY RAFIK O
66 granted patents·2,171 citations·filing 1978–2009
99Inventor score
Top patents by PatentIndex Score
66 records- 0199US5482811AMethod of making hydroxygallium phthalocyanine type V photoconductive imaging membersXEROX CORP·Filed 1994·Granted Jan 9, 1996·285 cites·4 claims
- 0299US5473064AHydroxygallium phthalocyanine imaging members and processesXEROX CORP·Filed 1993·Granted Dec 5, 1995·332 cites·28 claims
- 0398US6287737B1Photoconductive imaging membersXEROX CORP·Filed 2000·Granted Sep 11, 2001·95 cites·53 claims
- 0498US5521306AProcesses for the preparation of hydroxygallium phthalocyanineXEROX CORP·Filed 1994·Granted May 28, 1996·259 cites·34 claims
- 0598US5166339AProcesses for the preparation of titanium phthalocyaninesXEROX CORP·Filed 1990·Granted Nov 24, 1992·148 cites·54 claims
- 0697US5189155ATitanyl phthalocyanine Type I processesXEROX CORP·Filed 1991·Granted Feb 23, 1993·120 cites·24 claims
- 0796US7081234B1Process of making hydrophobic metal oxide nanoparticlesXEROX CORP·Filed 2004·Granted Jul 25, 2006·72 cites·19 claims
- 0896US4514482APhotoconductive devices containing perylene dye compositionsXEROX CORP·Filed 1984·Granted Apr 30, 1985·34 cites·26 claims
- 0993US4937164AThionated perylene photoconductive imaging members for electrophotographyXEROX CORP·Filed 1989·Granted Jun 26, 1990·37 cites·30 claims
- 1092US5206359AProcesses for preparation of titanyl phthalocyanines type xXEROX CORP·Filed 1991·Granted Apr 27, 1993·41 cites·39 claims
- 1192US4882254APhotoconductive imaging members with mixtures of photogenerator pigment compositionsXEROX CORP·Filed 1988·Granted Nov 21, 1989·42 cites·36 claims
- 1289US6444386B1Photoconductive imaging membersXEROX CORP·Filed 2001·Granted Sep 3, 2002·32 cites·36 claims
- 1388US5407766AHydroxygallium phthalocyanine photoconductive imaging membersXEROX CORP·Filed 1993·Granted Apr 18, 1995·35 cites·6 claims
- 1485US6322941B1Imaging membersXEROX CORP·Filed 2000·Granted Nov 27, 2001·24 cites·36 claims
- 1585US5521043AHydroxygallium phthalocyanine pigments with block copolymer bindersXEROX CORP·Filed 1995·Granted May 28, 1996·36 cites·32 claims
- 1685US4175982APhotovoltaic cellXEROX CORP·Filed 1978·Granted Nov 27, 1979·31 cites·25 claims
- 1784US6495300B1Photoconductive imaging membersXEROX CORP·Filed 2001·Granted Dec 17, 2002·23 cites·22 claims
- 1884US6277535B1Undercoating layer for imaging memberXEROX CORP·Filed 2000·Granted Aug 21, 2001·24 cites·22 claims
- 1983US4524218AProcesses for the preparation of squaraine compositionsXEROX CORP·Filed 1984·Granted Jun 18, 1985·16 cites·26 claims
- 2082US5456998APhotoconductive imaging members containing alkoxy-bridged metallophthalocyanine dimersXEROX CORP·Filed 1994·Granted Oct 10, 1995·26 cites·23 claims
- 2181US6194110B1Imaging membersXEROX CORP·Filed 2000·Granted Feb 27, 2001·19 cites·31 claims
- 2281US5153313AProcesses for the preparation of phthalocyaninesXEROX CORP·Filed 1990·Granted Oct 6, 1992·28 cites·46 claims
- 2380US5874193APhotoconductive imaging membersXEROX CORP·Filed 1998·Granted Feb 23, 1999·30 cites·35 claims
- 2480US5871877APhotoconductive imaging membersXEROX CORP·Filed 1998·Granted Feb 16, 1999·28 cites·34 claims
- 2580US5350844AProcesses for the preparation of titanyl phthalocyaninesXEROX CORP·Filed 1993·Granted Sep 27, 1994·16 cites·27 claims
- 2679US6287738B1Photoconductive imaging membersXEROX CORP·Filed 2000·Granted Sep 11, 2001·17 cites·56 claims
- 2779US5288574APhthalocyanine imaging members and processesXEROX CORP·Filed 1992·Granted Feb 22, 1994·16 cites·18 claims
- 2876US7232633B2Imaging member having inorganic material filler surface grafted with charge transport moietyXEROX CORP·Filed 2004·Granted Jun 19, 2007·14 cites·23 claims
- 2976US6492080B1Process for tuning photoreceptor sensitivityXEROX CORP·Filed 2001·Granted Dec 10, 2002·15 cites·17 claims
- 3076US6165661APerylene compositionsXEROX CORP·Filed 1999·Granted Dec 26, 2000·24 cites·72 claims
- 3176US5182382AProcesses for the preparation of titaniumphthalocyanine type xXEROX CORP·Filed 1991·Granted Jan 26, 1993·21 cites·20 claims
- 3276US4552822APhotoconductive devices with hydroxy containing squaraine compositionsXEROX CORP·Filed 1983·Granted Nov 12, 1985·19 cites·61 claims
- 3375US5102758AProcesses for the preparation of phthalocyanines imaging memberXEROX CORP·Filed 1991·Granted Apr 7, 1992·13 cites·6 claims
- 3474US6214505B1Imaging membersXEROX CORP·Filed 2000·Granted Apr 10, 2001·13 cites·26 claims
- 3572US4792508AElectrophotographic photoconductive imaging members with cis, trans perylene isomersXEROX CORP·Filed 1987·Granted Dec 20, 1988·16 cites·23 claims
- 3670US7338739B2Crosslinked siloxane composite overcoat for photoreceptorsXEROX CORP·Filed 2005·Granted Mar 4, 2008·3 cites·22 claims
- 3768US5334478AOxytitanium phthalocyanine imaging members and processes thereofXEROX CORP·Filed 1992·Granted Aug 2, 1994·16 cites·16 claims
- 3867US7560161B2Inorganic material surface grafted with charge transport moietyXEROX CORP·Filed 2004·Granted Jul 14, 2009·11 cites·11 claims
- 3967US6051351APerylenesXEROX CORP·Filed 1999·Granted Apr 18, 2000·17 cites·78 claims
- 4066US5567558AImaging member with hydroxygallium phthalocyanine type A,B,C or DXEROX CORP·Filed 1995·Granted Oct 22, 1996·8 cites·8 claims
- 4165US7378204B2Photoconductive memberXEROX CORP·Filed 2005·Granted May 27, 2008·2 cites·15 claims
- 4265US7122283B2Photoconductive membersXEROX CORP·Filed 2004·Granted Oct 17, 2006·8 cites·25 claims
- 4362US7851113B2Electrophotographic photoreceptors having reduced torque and improved mechanical robustnessXEROX CORP·Filed 2006·Granted Dec 14, 2010·2 cites·16 claims
- 4461US5668276AHydroxygallium phthalocyanine processesXEROX CORP·Filed 1996·Granted Sep 16, 1997·6 cites·22 claims
- 4561US4607124AProcesses for the preparation of mixed squaraine compositionsXEROX CORP·Filed 1985·Granted Aug 19, 1986·11 cites·18 claims
- 4660US8148039B2Crosslinked siloxane outmost layer having aromatic silicon-containing compounds for photoreceptorsQI YU·Filed 2009·Granted Apr 3, 2012·1 cites·24 claims
- 4760US5420268AOxytitanium phthalocyanine imaging members and processes thereofXEROX CORP·Filed 1993·Granted May 30, 1995·6 cites·23 claims
- 4860US4471041APhotoconductive devices containing novel squaraine compositionsXEROX CORP·Filed 1983·Granted Sep 11, 1984·10 cites·46 claims
- 4959US7517928B2Siloxane-acrylate interpenetrating networks and methods for producing the sameXEROX CORP·Filed 2005·Granted Apr 14, 2009·5 cites·11 claims
- 5058US6911288B2Photosensitive member having nano-size fillerXEROX CORP·Filed 2003·Granted Jun 28, 2005·6 cites·19 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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