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Recording Apparatus And Recording Method App 20180093471 - Ohta; Ayako ;   et al. | 2018-04-05 |
Printing apparatus and bubble exhaust method therefor Grant 9,573,381 - Kanda , et al. February 21, 2 | 2017-02-21 |
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Image Processing Apparatus And Image Processing Method App 20160350627 - Kanda; Hidehiko ;   et al. | 2016-12-01 |
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Ink jet printing apparatus and recovery method for a print head thereof Grant 9,321,271 - Kanda , et al. April 26, 2 | 2016-04-26 |
Recording apparatus and pattern forming method Grant 9,126,401 - Yoshikawa , et al. September 8, 2 | 2015-09-08 |
Printing Apparatus And Bubble Exhaust Method Therefor App 20150145933 - Kanda; Hidehiko ;   et al. | 2015-05-28 |
Ink-jet recording device and ink-jet recording control method Grant 8,967,758 - Hayashi , et al. March 3, 2 | 2015-03-03 |
Recording Apparatus And Pattern Forming Method App 20150042713 - Yoshikawa; Hirokazu ;   et al. | 2015-02-12 |
Apparatus for making a halftone recording and process for making a halftone recording using the same, as well as ink tank and head cartridge fit for halftone recording and ink-jet recording apparatus using the same Grant RE45,265 - Yano , et al. December 2, 2 | 2014-12-02 |
Recording method to determine whether a nozzle performing defective discharge exists in a recording apparatus Grant 8,894,177 - Yoshikawa , et al. November 25, 2 | 2014-11-25 |
Ink jet printing apparatus and print head temperature control method Grant 8,888,223 - Oonuki , et al. November 18, 2 | 2014-11-18 |
Inkjet printing apparatus and print head recovery method Grant 8,882,240 - Hirosawa , et al. November 11, 2 | 2014-11-11 |
Ink Jet Printing Apparatus And Print Head Temperature Control Method App 20140300661 - Oonuki; Kenichi ;   et al. | 2014-10-09 |
Recording apparatus and pattern recording method Grant 8,827,413 - Kanda , et al. September 9, 2 | 2014-09-09 |
Ink-jet Recording Device And Ink-jet Recording Control Method App 20140132657 - Hayashi; Aya ;   et al. | 2014-05-15 |
Image processing apparatus, image printing apparatus and printing data generation method Grant 8,711,424 - Chikuma , et al. April 29, 2 | 2014-04-29 |
Ink jet printing apparatus and print head recovery method Grant 8,517,493 - Yamamoto , et al. August 27, 2 | 2013-08-27 |
Inkjet printing apparatus and inkjet printing method Grant 8,474,941 - Tanaka , et al. July 2, 2 | 2013-07-02 |
Ink-jet Recording Device And Ink-jet Recording Control Method App 20130106934 - Hayashi; Aya ;   et al. | 2013-05-02 |
Recovery processing method for print head, and inkjet printing apparatus using the same Grant 8,398,206 - Yamamoto , et al. March 19, 2 | 2013-03-19 |
Printing apparatus and control method with adjustment unit correcting the displacement of the print position by pixel unit, and another unit correcting the displacement by the unit smaller than the pixel Grant 8,384,944 - Kawatoko , et al. February 26, 2 | 2013-02-26 |
Ink-jet recording device and ink-jet recording control method Grant 8,356,875 - Hayashi , et al. January 22, 2 | 2013-01-22 |
Ink Jet Printing Apparatus App 20120299996 - Kano; Yutaka ;   et al. | 2012-11-29 |
Ink jet printing apparatus and ink jet printing method Grant 8,303,070 - Kanda , et al. November 6, 2 | 2012-11-06 |
Inkjet printing apparatus and inkjet printing method Grant 8,287,090 - Kanda , et al. October 16, 2 | 2012-10-16 |
Inkjet printing apparatus Grant 8,251,473 - Moriyama , et al. August 28, 2 | 2012-08-28 |
Ink Jet Printing Apparatus And Recovery Method For A Print Head Thereof App 20120206522 - Kanda; Hidehiko ;   et al. | 2012-08-16 |
Inkjet Printing Apparatus And Print Head Recovery Method App 20120206524 - Hirosawa; Susumu ;   et al. | 2012-08-16 |
Printing apparatus and printing control method Grant 8,240,804 - Tanaka , et al. August 14, 2 | 2012-08-14 |
Recording apparatus Grant 8,184,342 - Hirosawa , et al. May 22, 2 | 2012-05-22 |
Ink jet printing apparatus and ink jet printing method Grant 8,177,328 - Yoshikawa , et al. May 15, 2 | 2012-05-15 |
Recording apparatus Grant 8,162,432 - Hayashi , et al. April 24, 2 | 2012-04-24 |
Ink-jet recording apparatus preventing recording surface of recording medium and paper discharge roller from contamination Grant 8,147,056 - Sugimoto , et al. April 3, 2 | 2012-04-03 |
Apparatus and method for ink jet printing Grant 8,136,908 - Tanaka , et al. March 20, 2 | 2012-03-20 |
Liquid ejection head Grant 8,113,642 - Akiyama , et al. February 14, 2 | 2012-02-14 |
Inkjet printing apparatus and printing method Grant 7,980,672 - Umezawa , et al. July 19, 2 | 2011-07-19 |
Recording Apparatus App 20110164261 - Hayashi; Masashi ;   et al. | 2011-07-07 |
Inkjet Printing Apparatus And Recovery Method App 20110148965 - Taira; Hiroshi ;   et al. | 2011-06-23 |
Recovery Processing Method For Print Head, And Inkjet Printing Apparatus Using The Same App 20110134185 - Yamamoto; Wakako ;   et al. | 2011-06-09 |
Recording apparatus Grant 7,926,893 - Hayashi , et al. April 19, 2 | 2011-04-19 |
Ink Jet Printing Apparatus And Print Head Temperature Control Method App 20110085003 - Oonuki; Kenichi ;   et al. | 2011-04-14 |
Recording Apparatus And Pattern Recording Method App 20110001778 - Kanda; Hidehiko ;   et al. | 2011-01-06 |
Recording Apparatus And Pattern Forming Method App 20100328383 - Yoshikawa; Hirokazu ;   et al. | 2010-12-30 |
Ink jet printing apparatus and ink jet printing method Grant 7,806,512 - Yamamoto , et al. October 5, 2 | 2010-10-05 |
Printing Apparatus And Printing Control Method App 20100238226 - Tanaka; Hirokazu ;   et al. | 2010-09-23 |
Ink jet recording apparatus and control method Grant 7,784,898 - Kanda August 31, 2 | 2010-08-31 |
Printing apparatus, printing system, printhead temperature retaining control method Grant 7,782,350 - Tanaka , et al. August 24, 2 | 2010-08-24 |
Ink jet printing apparatus and ink jet printing method Grant 7,762,640 - Kanda , et al. July 27, 2 | 2010-07-27 |
Printing apparatus and printhead temperature retaining control method Grant 7,758,153 - Tanaka , et al. July 20, 2 | 2010-07-20 |
Apparatus and method for ink jet printing Grant 7,735,946 - Tanaka , et al. June 15, 2 | 2010-06-15 |
Apparatus And Method For Ink Jet Printing App 20100118080 - TANAKA; Hirokazu ;   et al. | 2010-05-13 |
Data processing method, printing apparatus, host apparatus, and printing system Grant 7,706,023 - Kanda , et al. April 27, 2 | 2010-04-27 |
Printing apparatus and method for estimating amount of ink Grant 7,699,425 - Tanaka , et al. April 20, 2 | 2010-04-20 |
Printing apparatus and printing position control method Grant 7,690,750 - Kawatoko , et al. April 6, 2 | 2010-04-06 |
Ink jet head substrate having heat generating resistor and ink jet head and recording method using same Grant 7,637,581 - Shirota , et al. December 29, 2 | 2009-12-29 |
Inkjet Printing Apparatus And Inkjet Printing Method App 20090309907 - KANDA; HIDEHIKO ;   et al. | 2009-12-17 |
Ink jet print head and ink jet printing apparatus Grant 7,625,065 - Kanda , et al. December 1, 2 | 2009-12-01 |
Inkjet Printing Apparatus And Inkjet Printing Method App 20090256879 - Tanaka; Hirokazu ;   et al. | 2009-10-15 |
Ink Jet Printing Apparatus And Print Head Recovery Method App 20090244161 - Yamamoto; Wakako ;   et al. | 2009-10-01 |
Inkjet printing apparatus and inkjet printing method Grant 7,591,532 - Kanda , et al. September 22, 2 | 2009-09-22 |
Ink-jet Recording Device And Ink-jet Recording Control Method App 20090225120 - Hayashi; Aya ;   et al. | 2009-09-10 |
Liquid Ejection Head App 20090201354 - Akiyama; Rumi ;   et al. | 2009-08-13 |
Inkjet recording apparatus and inkjet recording method Grant 7,552,984 - Hayashi , et al. June 30, 2 | 2009-06-30 |
Image printing apparatus and image printing method Grant 7,552,985 - Kawatoko , et al. June 30, 2 | 2009-06-30 |
Ink-jet recording device and ink-jet recording control method Grant 7,549,720 - Hayashi , et al. June 23, 2 | 2009-06-23 |
Image printing apparatus and image printing method Grant 7,548,347 - Kawatoko , et al. June 16, 2 | 2009-06-16 |
Ink Jet Print Head And Ink Jet Printing Apparatus App 20090135226 - Sakamoto; Atsushi ;   et al. | 2009-05-28 |
Ink jet printing apparatus and ink jet printing method Grant 7,533,962 - Masuyama , et al. May 19, 2 | 2009-05-19 |
Ink Jet Printing Apparatus And Ink Jet Printing Method App 20090102875 - Yoshikawa; Hirokazu ;   et al. | 2009-04-23 |
Ink Jet Printing Apparatus And Ink Jet Printing Method App 20090091599 - Yamamoto; Wakako ;   et al. | 2009-04-09 |
Ink Jet Printing Apparatus And Ink Jet Printing Method App 20090073202 - Kanda; Hidehiko ;   et al. | 2009-03-19 |
Inkjet Printing Apparatus And Printing Method App 20090015638 - Umezawa; Masahiko ;   et al. | 2009-01-15 |
Recording Apparatus App 20090002777 - Hirosawa; Susumu ;   et al. | 2009-01-01 |
Recording Apparatus App 20090002439 - Hayashi; Masashi ;   et al. | 2009-01-01 |
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Inkjet Printing Apparatus App 20080284823 - Moriyama; Jiro ;   et al. | 2008-11-20 |
Printing Apparatus And Method For Estimating Amount Of Ink App 20080278530 - Tanaka; Hirokazu ;   et al. | 2008-11-13 |
Ink Jet Recording Apparatus And Control Method App 20080278524 - Kanda; Hidehiko | 2008-11-13 |
Inkjet Printing Apparatus And Inkjet Printing Method App 20080252686 - Kanda; Hidehiko ;   et al. | 2008-10-16 |
Ink-jet recording device and dot-pattern recording method Grant 7,429,094 - Hamasaki , et al. September 30, 2 | 2008-09-30 |
Printing apparatus printer driver, and buffer management method Grant 7,405,839 - Moriyama , et al. July 29, 2 | 2008-07-29 |
Printing Apparatus And Printhead Temperature Retaining Control Method App 20080165217 - Tanaka; Hirokazu ;   et al. | 2008-07-10 |
Printing Apparatus, Printing System, Printhead Temperature Retaining Control Method App 20080143809 - Tanaka; Hirokazu ;   et al. | 2008-06-19 |
Ink Jet Printing Apparatus App 20080143780 - Sakamoto; Atsushi ;   et al. | 2008-06-19 |
Ink Jet Printing Apparatus And Ink Jet Printing Method App 20080136851 - Masuyama; Atsuhiko ;   et al. | 2008-06-12 |
Imaging forming system, print control method and control program for printing apparatus Grant 7,380,900 - Kanda , et al. June 3, 2 | 2008-06-03 |
Printer and method for controlling same Grant 7,349,122 - Sakamoto , et al. March 25, 2 | 2008-03-25 |
Ink jet printing apparatus and ink jet printing method Grant 7,344,219 - Sakamoto , et al. March 18, 2 | 2008-03-18 |
Image Processing Apparatus, Image Printing Apparatus And Printing Data Generation Method App 20080049237 - Chikuma; Toshiyuki ;   et al. | 2008-02-28 |
Image Printing Apparatus And Image Printing Method App 20080049060 - Kawatoko; Norihiro ;   et al. | 2008-02-28 |
Printing apparatus and inclination correction method Grant 7,325,900 - Hayashi , et al. February 5, 2 | 2008-02-05 |
Printing system, printer driver, and printing method Grant 7,315,393 - Kanda , et al. January 1, 2 | 2008-01-01 |
Inkjet Recording Apparatus And Inkjet Recording Method App 20070291059 - Hayashi; Masashi ;   et al. | 2007-12-20 |
Apparatus And Method For Ink Jet Printing App 20070285467 - Tanaka; Hirokazu ;   et al. | 2007-12-13 |
Ink Jet Print Head And Ink Jet Printing Apparatus App 20070285463 - KANDA; HIDEHIKO ;   et al. | 2007-12-13 |
Printing apparatus with generating means for generating a mask pattern comprising a plurality of planes, control method therefor, and program Grant 7,301,668 - Kawanabe , et al. November 27, 2 | 2007-11-27 |
Printing apparatus and method of adjusting printing position Grant 7,296,872 - Hayashi , et al. November 20, 2 | 2007-11-20 |
Ink jet printing apparatus and print position setting method Grant 7,296,877 - Chikuma , et al. November 20, 2 | 2007-11-20 |
Printing apparatus and printing method Grant 7,290,855 - Chikuma , et al. November 6, 2 | 2007-11-06 |
Ink jet printing apparatus and printing position setting method of the apparatus Grant 7,252,364 - Chikuma , et al. August 7, 2 | 2007-08-07 |
Ink Jet Head Substrate Having Heat Generating Resistor And Ink Jet Head And Recording Method Using Same App 20070159512 - SHIROTA; KOROMO ;   et al. | 2007-07-12 |
Ink jet head substrate having heat generating resistor and ink jet head and recording method using same Grant 7,219,971 - Shirota , et al. May 22, 2 | 2007-05-22 |
Ink jet printing apparatus Grant 7,201,465 - Sakamoto , et al. April 10, 2 | 2007-04-10 |
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Printing apparatus and method of adjusting printing position App 20070013726 - Hayashi; Aya ;   et al. | 2007-01-18 |
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Printing apparatus and control method therefor App 20070008361 - Kawatoko; Norihiro ;   et al. | 2007-01-11 |
Ink-jet Recording Device And Ink-jet Recording Control Method App 20070008354 - Hayashi; Aya ;   et al. | 2007-01-11 |
Data processing method, printing apparatus, host apparatus, and printing system App 20070008561 - Kanda; Hidehiko ;   et al. | 2007-01-11 |
Printing apparatus and printing position control method App 20070008370 - Kawatoko; Norihiro ;   et al. | 2007-01-11 |
Printing apparatus and inclination correction method App 20070008360 - Hayashi; Masashi ;   et al. | 2007-01-11 |
Ink-jet Recording Device And Dot-pattern Recording Method App 20070008363 - Hamasaki; Yuji ;   et al. | 2007-01-11 |
Image forming system, print control method and control program for printing apparatus App 20060274096 - Kanda; Hidehiko ;   et al. | 2006-12-07 |
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Inkjet printing apparatus Grant 7,101,004 - Sakamoto , et al. September 5, 2 | 2006-09-05 |
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Printing apparatus Grant 7,052,191 - Moriyama , et al. May 30, 2 | 2006-05-30 |
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Printing apparatus and printing method App 20060038846 - Chikuma; Toshiyuki ;   et al. | 2006-02-23 |
Recording apparatus and liquid discharge method Grant 6,988,782 - Imanaka , et al. January 24, 2 | 2006-01-24 |
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Printing apparatus and test pattern printing method Grant 6,942,313 - Kanda September 13, 2 | 2005-09-13 |
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Printing apparatus App 20050186001 - Moriyama, Jiro ;   et al. | 2005-08-25 |
Printing apparatus Grant 6,921,218 - Moriyama , et al. July 26, 2 | 2005-07-26 |
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Printing apparatus, information processing apparatus, control method for them, and program Grant 6,857,718 - Moriyama , et al. February 22, 2 | 2005-02-22 |
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Printer and method for controlling same App 20050007623 - Sakamoto, Atsushi ;   et al. | 2005-01-13 |
Ink-jet printing apparatus and its printhead control method Grant 6,830,308 - Hamasaki , et al. December 14, 2 | 2004-12-14 |
Liquid discharge head, liquid discharge apparatus, valve protection method of the same liquid discharge head and maintenance system Grant 6,827,416 - Matsumoto , et al. December 7, 2 | 2004-12-07 |
Printer and method for controlling same Grant 6,820,956 - Sakamoto , et al. November 23, 2 | 2004-11-23 |
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Inkjet printing apparatus and cleaning control method therefor App 20040165030 - Sakamoto, Atsushi ;   et al. | 2004-08-26 |
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Recording apparatus capable of recording information representing positions on a recording medium and recording method App 20040101278 - Moriyama, Jiro ;   et al. | 2004-05-27 |
Method for recording image corresponding to positional information on recording medium and recording method App 20040100658 - Kanda, Hidehiko ;   et al. | 2004-05-27 |
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Ink-jet printing apparatus and ink-jet printing method Grant 6,719,403 - Kanda , et al. April 13, 2 | 2004-04-13 |
Ink jet recording apparatus and ink jet recording method Grant 6,712,443 - Kanda , et al. March 30, 2 | 2004-03-30 |
Ink-jet printing method and apparatus Grant 6,702,415 - Kanda , et al. March 9, 2 | 2004-03-09 |
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Image printing apparatus and image printing method App 20040042047 - Kawatoko, Norihiro ;   et al. | 2004-03-04 |
Ink-jet recording apparatus performing multi-pass recording, and ink-jet recording method Grant 6,695,432 - Kanda February 24, 2 | 2004-02-24 |
Ink-jet apparatus and ink-jet printing method App 20040032454 - Kanda, Hidehiko | 2004-02-19 |
Printing apparatus and test pattern printing method App 20040032446 - Kanda, Hidehiko | 2004-02-19 |
Ink jet recording apparatus and method Grant 6,688,716 - Kanda , et al. February 10, 2 | 2004-02-10 |
Image printing apparatus, control method therefor, storage medium and program Grant 6,682,168 - Nakagawa , et al. January 27, 2 | 2004-01-27 |
Printing apparatus and method App 20040004645 - Kanda, Hidehiko ;   et al. | 2004-01-08 |
Printing system, printer driver, and printing method App 20030193674 - Kanda, Hidehiko ;   et al. | 2003-10-16 |
Printing apparatus printer driver, and buffer management method App 20030193675 - Moriyama, Jiro ;   et al. | 2003-10-16 |
Printing apparatus, information processing apparatus, control method for them, and program App 20030193531 - Moriyama, Jiro ;   et al. | 2003-10-16 |
Printing apparatus, information processing apparatus, control method for them, and program App 20030193534 - Moriyama, Jiro ;   et al. | 2003-10-16 |
Printing apparatus, information processing apparatus, control method for them, and program App 20030193532 - Moriyama, Jiro ;   et al. | 2003-10-16 |
Image formation system, recording apparatus, and recording control method App 20030193536 - Kuronuma, Akira ;   et al. | 2003-10-16 |
Ink-jet print method and apparatus Grant 6,601,938 - Iwasaki , et al. August 5, 2 | 2003-08-05 |
Recording apparatus and liquid discharge method App 20030090533 - Imanaka, Yoshiyuki ;   et al. | 2003-05-15 |
Ink-jet printing apparatus and its printhead control method App 20030081030 - Hamasaki, Yuji ;   et al. | 2003-05-01 |
Printer and method for controlling same App 20030063142 - Sakamoto, Atsushi ;   et al. | 2003-04-03 |
Recording apparatus and predischarge control method App 20030007030 - Sakamoto, Atsushi ;   et al. | 2003-01-09 |
Discharge recovery method for ink jet apparatus using waterproof ink and ink jet apparatus employing the method App 20020196305 - Kanda, Hidehiko ;   et al. | 2002-12-26 |
Image printing apparatus, control method therefor, storage medium and program App 20020186273 - Nakagawa, Yoshinori ;   et al. | 2002-12-12 |
Printing apparatus, control method therefor, and program App 20020186386 - Kawanabe, Tetsuya ;   et al. | 2002-12-12 |
Ink-jet recording apparatus performing multi-pass recording, and ink-jet recording method App 20020186274 - Kanda, Hidehiko | 2002-12-12 |
Ink-jet printing method and apparatus App 20020186277 - Kanda, Hidehiko ;   et al. | 2002-12-12 |
Image forming apparatus and method App 20020158942 - Kaneko, Takumi ;   et al. | 2002-10-31 |
Ink-jet recording method and ink-jet recording apparatus Grant 6,471,322 - Kanda , et al. October 29, 2 | 2002-10-29 |
Ink set for ink-jet recording, ink-jet recording method, recording unit, ink-jet recording apparatus and bleeding reducing method Grant 6,460,987 - Katsuragi , et al. October 8, 2 | 2002-10-08 |
Ink Jet Apparatus And Its Operation Method App 20020080207 - KANDA, HIDEHIKO ;   et al. | 2002-06-27 |
Ink jet printing apparatus and ink jet printing method App 20020070997 - Nakagawa, Yoshinori ;   et al. | 2002-06-13 |
Ink-jet printing apparatus and ink-jet printing method App 20020067393 - Kanda, Hidehiko ;   et al. | 2002-06-06 |
Ink jet recording apparatus and method App 20020063750 - Kanda, Hidehiko ;   et al. | 2002-05-30 |
Ink jet recording apparatus and ink jet recording method App 20020063749 - Kanda, Hidehiko ;   et al. | 2002-05-30 |
Liquid discharge head, liquid discharge apparatus, value protection method of the same liquid discharge head and maintenance system App 20020027578 - Matsumoto, Nobuyuki ;   et al. | 2002-03-07 |
Ink-jet printing method and apparatus for printing with inks of different densities App 20020012018 - Ohtsuka, Naoji ;   et al. | 2002-01-31 |
Recording apparatus, recording method and control method for recording with reduced drive load Grant 6,302,520 - Akiyama , et al. October 16, 2 | 2001-10-16 |
Ink-jet recording method and ink-jet recording apparatus App 20010015734 - Kanda, Hidehiko ;   et al. | 2001-08-23 |
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Ink-jet printing method and apparatus for printing with inks of different densities Grant 6,260,938 - Ohtsuka , et al. July 17, 2 | 2001-07-17 |
System to perform ink jet printing head recovery Grant 6,193,351 - Yaegashi , et al. February 27, 2 | 2001-02-27 |
Ink jet recording apparatus and method for recording information with blend of plural types of ink and ink tank used in the same Grant 6,183,071 - Sugimoto , et al. February 6, 2 | 2001-02-06 |
User interface, printing system using user interface and print control method Grant 6,145,950 - Ohtsuka , et al. November 14, 2 | 2000-11-14 |
Ink-jet printing apparatus and ink-jet printing method Grant 6,142,604 - Kanda , et al. November 7, 2 | 2000-11-07 |
Print control method and printer Grant 6,142,600 - Takahashi , et al. November 7, 2 | 2000-11-07 |
Ink-jet print method and apparatus Grant 6,120,129 - Iwasaki , et al. September 19, 2 | 2000-09-19 |
Method and apparatus for ink-jet recording with inks having different densities Grant 6,113,210 - Gotoh , et al. September 5, 2 | 2000-09-05 |
Method and apparatus for ink-jet recording with inks having different densities Grant 6,109,720 - Gotoh , et al. August 29, 2 | 2000-08-29 |
Method for preserving a liquid-ejection head, and liquid-ejection apparatus Grant 6,095,639 - Uetsuki , et al. August 1, 2 | 2000-08-01 |
Ink jet recording apparatus and method including prevention of color mixing through selective predischarge of nozzles adjacent to differing color groups Grant 6,079,809 - Yaegashi , et al. June 27, 2 | 2000-06-27 |
Ink jet printing method and ink jet recording apparatus Grant 6,074,052 - Inui , et al. June 13, 2 | 2000-06-13 |
Image processing apparatus and method using dot patterns Grant 6,061,145 - Kanda , et al. May 9, 2 | 2000-05-09 |
Ink jet printer having exchangeable recording devices, a recovery control method and an ink jet printer that manages an amount of ink remaining Grant 5,949,447 - Arai , et al. September 7, 1 | 1999-09-07 |
Method and apparatus for printing Grant 5,926,191 - Kanematsu , et al. July 20, 1 | 1999-07-20 |
Method and apparatus for ink-jet recording with inks having different densities Grant 5,825,377 - Gotoh , et al. October 20, 1 | 1998-10-20 |
Random jet recording apparatus and method by thick and thin inks Grant 5,729,259 - Gotoh , et al. March 17, 1 | 1998-03-17 |