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Koganehira

Shuichi Koganehira, Suwa-Shi JP

Patent application numberDescriptionPublished
20100118069PRINTER AND PRINTING METHOD - A printer has a head ejecting an ink including a colorant, water, an alcoholic solvent, and a surfactant to form an image, and a control portion controlling the head so as not to eject the ink to edge pixels when the image is formed on a medium. In the above printer, the alcoholic solvent contains at least one slightly water-soluble alkanediol.05-13-2010

Shuichi Koganehira, Nagano-Ken JP

Patent application numberDescriptionPublished
20090233066INK COMPOSITION FOR INK JET RECORDING, RECORDING METHOD AND RECORDED MATTER - There is provided an ink composition that, even on various recording media, especially gloss paper of a printing paper base, can yield an image having excellent gloss, can realize good recovery from clogging and handleability of recorded matter, and, at the same time, can realize excellent ejection stability and color reproduction. The ink composition for ink jet recording comprises at least a colorant, water, an alkanediol, and a surfactant, wherein the alkanediol comprises a water soluble 1,2-alkanediol and a water soluble alkanediol having a hydroxyl group at both ends of its main chain, and the surfactant is a polyorganosiloxane.09-17-2009
20090258198INK COMPOSITION FOR INK JET RECORDING, RECORDING METHOD AND RECORDED MATTER - There is provided an ink composition for ink jet recording that, even on printing paper for running-on, can realize excellent gloss and good color reproduction and, at the same time, is excellent in ejection stability and recovery from clogging. The ink composition for ink jet recording comprises at least a colorant, water, an alkanediol, and a surfactant, wherein the alkanediol comprises a water soluble 1,2-alkanediol and a slightly water soluble 1,2-alkanediol, and the surfactant is a polyorganosiloxane.10-15-2009
20090297790Magenta Ink Composition, Ink Cartridge, and Recording System and Recorded Matter Using the Same - This invention provides a magenta ink composition that, when recorded, is excellent in color development, graininess, and gloss, is less likely to cause clogging in an ink jet recording head, and is excellent in color reproduction in a high-chroma and high-lightness red region. The magenta ink composition has an L* value of not less than 60 and a b* value of not more than −17 when the a* value in CIE standard calculated from a visible absorption spectrum in a not more than 10000-fold diluted aqueous solution is 80.12-03-2009
20110115862INK JET RECORDING APPARATUS AND INK JET RECORDING METHOD - A recording head is operable to eject ink toward a recording medium. A carriage mounting the recording head is operable to carry the recording head in a first direction. At least one infrared ray heater is provided on the carriage so as to oppose the recording medium. An input energy of the infrared ray heater is 60 W or less.05-19-2011

Patent applications by Shuichi Koganehira, Nagano-Ken JP

Shuichi Koganehira, Matgumoto-Shi JP

Patent application numberDescriptionPublished
20110310165MAGENTA INK COMPOSITION, INK CARTRIDGE, AND RECORDING SYSTEM AND RECORDED MATTER USING THE SAME - This invention provides a magenta ink composition that, when recorded, is excellent in color development, graininess, and gloss, is less likely to cause clogging in an ink jet recording head, and is excellent in color reproduction in a high-chroma and high-lightness red region. The magenta ink composition has an L* value of not less than 60 and a b* value of not more than −17 when the a* value in CIE standard calculated from a visible absorption spectrum in a not more than 10000-fold diluted aqueous solution is 80.12-22-2011

Syuichi Koganehira, Matsumoto-Shi JP

Patent application numberDescriptionPublished
20120038719LIQUID CONTAINER AND LIQUID EJECTION SYSTEM - A liquid container for supplying a liquid to a liquid ejection apparatus comprises: a liquid chamber provided to store the liquid; an air chamber connected with the liquid chamber to introduce the outside air into the liquid chamber with consumption of the liquid in the liquid chamber; an open-air hole provided to introduce the outside air into the air chamber; and a liquid inlet provided to fill the liquid into the liquid chamber, wherein the liquid inlet is located at a lower position than the open-air hole, in a filling attitude of the liquid container in which the liquid is filled into the liquid chamber.02-16-2012