Inventor · disambiguated record
Douglas W. Couwenhoven
Also filed as: COUWENHOVEN DOUGLAS W · COUWENHOVEN DOUGLAS WAYNE
49 granted patents·4 pending applications·1,314 citations·filing 1994–2012
99Inventor score
Files withEASTMAN KODAK CO42COUWENHOVEN DOUGLAS W2SPAULDING KEVIN E2CHEN HUIJUAN D1COUWENHOVEN DOUGLAS WAYNE1
Top patents by PatentIndex Score
53 records- 0195US6435657B1Method for multicolorant printing of digital images using reduced colorant amountsEASTMAN KODAK CO·Filed 2001·Granted Aug 20, 2002·63 cites·15 claims
- 0295US6354689B1Method of compensating for malperforming nozzles in a multitone inkjet printerEASTMAN KODAK CO·Filed 1998·Granted Mar 12, 2002·169 cites·8 claims
- 0392US7387361B1Failed nozzle correction system and method for borderless printingEASTMAN KODAK CO·Filed 2007·Granted Jun 17, 2008·16 cites·16 claims
- 0492US6011595AMethod for segmenting a digital image into a foreground region and a key color regionEASTMAN KODAK CO·Filed 1997·Granted Jan 4, 2000·145 cites·38 claims
- 0592US5708511AMethod for adaptively compressing residual digital image data in a DPCM compression systemEASTMAN KODAK CO·Filed 1996·Granted Jan 13, 1998·155 cites·23 claims
- 0691US7651206B2Output image processing for small drop printingEASTMAN KODAK CO·Filed 2006·Granted Jan 26, 2010·13 cites·21 claims
- 0789US5553199AMethod and apparatus for calibrating a four color printerEASTMAN KODAK CO·Filed 1994·Granted Sep 3, 1996·88 cites·13 claims
- 0887US8272710B2Bi-directional print maskingSPAULDING KEVIN E·Filed 2008·Granted Sep 25, 2012·10 cites·9 claims
- 0987US6046822AInk jet printing apparatus and method for improved accuracy of ink droplet placementEASTMAN KODAK CO·Filed 1998·Granted Apr 4, 2000·57 cites·32 claims
- 1086US7982916B2Color error diffusion with error signal offsetEASTMAN KODAK CO·Filed 2008·Granted Jul 19, 2011·8 cites·12 claims
- 1186US7369276B2Multi-level halftoning providing improved texture uniformityEASTMAN KODAK CO·Filed 2004·Granted May 6, 2008·29 cites·24 claims
- 1286US7239422B2Color gamut mapping using a cost functionEASTMAN KODAK CO·Filed 2002·Granted Jul 3, 2007·32 cites·16 claims
- 1385US7212229B2Digital camera providing image processing for an attachable printerEASTMAN KODAK CO·Filed 2001·Granted May 1, 2007·28 cites·14 claims
- 1483US7365879B2Determining sets of n-dimensional colorant control signalsEASTMAN KODAK CO·Filed 2004·Granted Apr 29, 2008·25 cites·15 claims
- 1582US7245395B2Calibrating a digital printer using a cost functionEASTMAN KODAK CO·Filed 2002·Granted Jul 17, 2007·22 cites·19 claims
- 1682US7050197B1Image processor for high-speed printing applicationsEASTMAN KODAK CO·Filed 2000·Granted May 23, 2006·27 cites·24 claims
- 1781US8098403B2Color error diffusion with error signal offsetSPAULDING KEVIN E·Filed 2011·Granted Jan 17, 2012·4 cites·12 claims
- 1881US7564589B2Color error diffusion with error signal offsetsEASTMAN KODAK CO·Filed 2006·Granted Jul 21, 2009·6 cites·8 claims
- 1979US6454389B1Multipass inkjet printing using print maskingEASTMAN KODAK CO·Filed 2000·Granted Sep 24, 2002·27 cites·11 claims
- 2078US8085435B2Adaptive color transform to control color inconstancyHAUF CHRISTOPHER R·Filed 2008·Granted Dec 27, 2011·7 cites·9 claims
- 2178US8018623B2Multi-level halftoning providing reduced error diffusion artifactsEASTMAN KODAK CO·Filed 2008·Granted Sep 13, 2011·5 cites·19 claims
- 2278US7234791B2Reducing ink bleed artifactsEASTMAN KODAK CO·Filed 2005·Granted Jun 26, 2007·5 cites·24 claims
- 2377US7190485B2Method for multilevel printing of digital images using reduced colorant amountsEASTMAN KODAK CO·Filed 2001·Granted Mar 13, 2007·15 cites·7 claims
- 2476US7755662B2Digital camera providing image processing for an attachable printerEASTMAN KODAK CO·Filed 2007·Granted Jul 13, 2010·4 cites·9 claims
- 2576US7064869B2Method for halftoning a multi-channel digital color image having at least one group of similar color channelsEASTMAN KODAK CO·Filed 2001·Granted Jun 20, 2006·14 cites·26 claims
- 2676US6830306B2Compensating for drop volume variation in an inkjet printerEASTMAN KODAK CO·Filed 2003·Granted Dec 14, 2004·16 cites·14 claims
- 2776US5937104ACombining a first digital image and a second background digital image using a key color control signal and a spatial control signalEASTMAN KODAK CO·Filed 1997·Granted Aug 10, 1999·52 cites·15 claims
- 2875US5757517AAdaptive error diffusion methodEASTMAN KODAK CO·Filed 1995·Granted May 26, 1998·48 cites·23 claims
- 2974US7715043B2Multilevel print masking methodEASTMAN KODAK CO·Filed 2006·Granted May 11, 2010·6 cites·22 claims
- 3074US7362472B2Color error diffusionEASTMAN KODAK CO·Filed 2004·Granted Apr 22, 2008·12 cites·21 claims
- 3173US6273542B1Method of compensating for malperforming nozzles in an inkjet printerEASTMAN KODAK CO·Filed 1998·Granted Aug 14, 2001·32 cites·16 claims
- 3272US7652795B2Reducing ink bleed artifactsEASTMAN KODAK CO·Filed 2005·Granted Jan 26, 2010·3 cites·29 claims
- 3367US5581371AError diffusion methodEASTMAN KODAK CO·Filed 1995·Granted Dec 3, 1996·32 cites·14 claims
- 3465US8480199B2Method of printing with anti-curl solutionCHEN HUIJUAN D·Filed 2010·Granted Jul 9, 2013·2 cites·20 claims
- 3565US8085436B2Digital printing using similar colorantsCOUWENHOVEN DOUGLAS W·Filed 2008·Granted Dec 27, 2011·2 cites·15 claims
- 3665US7196817B2Printing of digital images using reduced colorant amounts while preserving perceived colorEASTMAN KODAK CO·Filed 2002·Granted Mar 27, 2007·10 cites·18 claims
- 3762US6312101B1Method of printing digital images using multiple colorants having substantially the same colorEASTMAN KODAK CO·Filed 1999·Granted Nov 6, 2001·25 cites·22 claims
- 3862US5986771AMethod for computing a control signal for combining digital imagesEASTMAN KODAK CO·Filed 1997·Granted Nov 16, 1999·25 cites·19 claims
- 3961US8422082B2Reducing ink bleed artifacts for RGB imagesCOUWENHOVEN DOUGLAS W·Filed 2009·Granted Apr 16, 2013·1 cites·20 claims
- 4060US5596602AData compression rate control method and apparatusEASTMAN KODAK CO·Filed 1995·Granted Jan 21, 1997·24 cites·5 claims
- 4157US8287072B2Image data expansion by print maskRUEBY CHRISTOPHER·Filed 2009·Granted Oct 16, 2012·1 cites·13 claims
- 4257US7210753B2Inkjet printing using protective inkEASTMAN KODAK CO·Filed 2004·Granted May 1, 2007·6 cites·8 claims
- 4357US5975671AMethod and apparatus for printing an image on a device having multiple dot densities and multiple dot areasEASTMAN KODAK CO·Filed 1996·Granted Nov 2, 1999·20 cites·25 claims
- 4451US6407825B1Colorant reduction method for digital imagesEASTMAN KODAK CO·Filed 1998·Granted Jun 18, 2002·14 cites·14 claims
- 4550US7140709B2Using inkjet printer to apply protective inkEASTMAN KODAK CO·Filed 2004·Granted Nov 28, 2006·4 cites·12 claims
- 4650US6908172B2Method of selecting inkjet nozzle banks for assembly into an inkjet printheadEASTMAN KODAK CO·Filed 2003·Granted Jun 21, 2005·4 cites·20 claims
- 4747US8390829B2Inkjet printing method using print modes selected in response to image quality scoresDIBIASE RICHARD A·Filed 2008·Granted Mar 5, 2013·1 cites·13 claims
- 4846US7837285B2Inkjet printing using protective inkEASTMAN KODAK CO·Filed 2007·Granted Nov 23, 2010·0 cites·11 claims
- 4945US2004085553A1Multitoning a digital image having at least one group of similar colors channelsEASTMAN KODAK CO·Filed 2002·Application pending·0 cites
- 5043US8356883B2Inkjet printing method for colorless ink using colorless ink printhead masks dependent on colored ink printingEASTMAN KODAK CO·Filed 2008·Granted Jan 22, 2013·0 cites·8 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →