Patents by Inventor Katsuko Aoki
Katsuko Aoki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8632154Abstract: An ink jet recording method includes a first process in which a coloring ink is recorded on a recording medium using an ink jet head so as to form a first image, a second process in which a background ink is recorded using the ink jet head so as to form a background image that covers the first image, and a third process in which a coloring ink is recorded using the ink jet head so as to form a second image, and a drying process is included between the first process and the third process.Type: GrantFiled: February 22, 2013Date of Patent: January 21, 2014Assignee: Seiko Epson CorporationInventors: Katsuko Aoki, Yoshiko Azami, Shoki Kasahara
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Patent number: 8614264Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition on an ink-non-absorbent or ink-low-absorbent recording medium from an ink jet recording apparatus, and drying the aqueous ink composition on the recording medium by heating the recording medium to 40° C. or more. The aqueous ink composition used in the method contains a pigment, a first solvent and a second solvent, but does not contain glycerol. The first solvent content W‘is in the range of 3% to 6% by mass, and the ratio W2/W1 of the second solvent content W2 to the first solvent content W1 is 2 or more.Type: GrantFiled: January 28, 2011Date of Patent: December 24, 2013Assignee: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Publication number: 20130293651Abstract: An inkjet recording method for printing by ejecting droplets of a water-based ink composition onto a recording medium having a recording surface which is a plastic film and by causing the droplets to adhere to the recording surface, including: using, as the water-based ink composition, a water-based ink composition including at least colorant, between 0.1 wt % and 1.5 wt % of a silicon-based surfactant, alkanediol, pyrrolidone derivative, thermoplastic resin, and water; and heating the water-based ink composition that has adhered to the recording surface to a temperature of 40° C. or higher.Type: ApplicationFiled: July 10, 2013Publication date: November 7, 2013Inventors: Hiroshi MUKAI, Katsuko AOKI
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Patent number: 8523343Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition from an ink jet recording apparatus onto a non-ink-absorbing or low-ink-absorbing recording medium, and heating the recording medium to 40° C. or more to dry the aqueous ink composition deposited on the recording medium, wherein the first solvent content (W1) is 3% by mass or more and 6% by mass or less of the mass of the aqueous ink composition, the ratio (W2/W1) of the second solvent content (W2) to the first solvent content (W1) is one or more, and the ratio [(W2+W3)/(W1)] of the total (W2+W3) of the second solvent content (W2) and the third solvent content (W3) to the first solvent content (W1) is three or more.Type: GrantFiled: January 28, 2011Date of Patent: September 3, 2013Assignee: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Patent number: 8500264Abstract: A recording method for printing on a plastic film surface of a print medium by ejecting droplets of a water-based ink composition onto the plastic film surface includes applying a water-based ink composition on the plastic film surface, and heating the water-based ink composition on the plastic film surface to a temperature of 40° C. or more. The water-based ink composition contains a coloring agent, 0.1% to 1.5% by weight of a silicone surfactant, an acetylene glycol surfactant, a pyrrolidone derivative, a thermoplastic resin, and water.Type: GrantFiled: December 19, 2007Date of Patent: August 6, 2013Assignee: Seiko Epson CorporationInventors: Hiroshi Mukai, Katsuko Aoki
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Patent number: 8474966Abstract: Recording onto a non-ink-absorbing or low-ink-absorbing recording medium is performed using an aqueous ink composition containing a first solvent composed of a glycol diether having a boiling point of 150 to 220° C., a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol, and a third solvent composed of a glycol having a boiling point of 170 to 220° C. and conducting two drying steps at different heating conditions.Type: GrantFiled: March 28, 2011Date of Patent: July 2, 2013Assignee: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Patent number: 8474967Abstract: Recording onto a non-ink-absorbing recording medium is performed using an aqueous ink composition containing a first solvent composed of at least one selected from 2-pyrrolidone, 1,3-dimethyl-imidazolidinone, and N,N?-dimethylpropylene urea, a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol, and a third solvent composed of at least one selected from glycol diethers and heating the non-ink-absorbing recording medium at 40 to 60° C.Type: GrantFiled: March 28, 2011Date of Patent: July 2, 2013Assignee: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Publication number: 20120249705Abstract: An ink jet recording method includes heating an ink non-absorbent or low ink-absorbing recording medium to a temperature of 40° C. to 110° C. and performing recording using an aqueous ink composition containing a water-insoluble colorant, a paraffin wax, resin particles, and water.Type: ApplicationFiled: March 30, 2012Publication date: October 4, 2012Applicant: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Publication number: 20120252942Abstract: An aqueous ink composition includes at least one kind of water-insoluble colorant and a wax in which the wax is a paraffin wax with a melting point of 60° C. to 110° C. and an average particle size of 30 nm to 250 nm.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Katsuko AOKI, Hiroshi MUKAI
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Publication number: 20110234728Abstract: Recording onto a non-ink-absorbing recording medium is performed using an aqueous ink composition containing a first solvent composed of at least one selected from 2-pyrrolidone, 1,3-dimethyl-imidazolidinone, and N,N?-dimethylpropylene urea, a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol, and a third solvent composed of at least one selected from glycol diethers and heating the non-ink-absorbing recording medium at 40 to 60° C.Type: ApplicationFiled: March 28, 2011Publication date: September 29, 2011Applicant: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Publication number: 20110234726Abstract: An ink jet recording method includes recording with an aqueous ink composition on a non-ink-absorbing or low-ink-absorbing recording medium. The aqueous ink composition contains a water-insoluble colorant, water-insoluble thermoplastic resin particles, a surfactant, a first solvent including at least one selected from 2-pyrrolidone and N,N?-dimethylpropylene urea, a second solvent including 1,2-hexanediol, and a third solvent including at least one selected from glycol diethers having a boiling point of 240° C. or more and 280° C. or less.Type: ApplicationFiled: March 25, 2011Publication date: September 29, 2011Inventors: Hiroshi Mukai, Katsuko Aoki
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Publication number: 20110234727Abstract: Recording onto a non-ink-absorbing or low-ink-absorbing recording medium is performed using an aqueous ink composition containing a first solvent composed of a glycol diether having a boiling point of 150 to 220° C., a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol, and a third solvent composed of a glycol having a boiling point of 170 to 220° C. and conducting two drying steps at different heating conditions.Type: ApplicationFiled: March 28, 2011Publication date: September 29, 2011Applicant: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Publication number: 20110183125Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition from an ink jet recording apparatus onto a non-ink-absorbing or low-ink-absorbing recording medium, and heating the recording medium to 40° C. or more to dry the aqueous ink composition deposited on the recording medium, wherein the first solvent content (W1) is 3% by mass or more and 6% by mass or less of the mass of the aqueous ink composition, the ratio (W2/W1) of the second solvent content (W2) to the first solvent content (W1) is one or more, and the ratio [(W2+W3)/(W1)] of the total (W2+W3) of the second solvent content (W2) and the third solvent content (W3) to the first solvent content (W1) is three or more.Type: ApplicationFiled: January 28, 2011Publication date: July 28, 2011Applicant: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Publication number: 20110183124Abstract: An ink jet recording method includes ejecting droplets of an aqueous ink composition on an ink-non-absorbent or ink-low-absorbent recording medium from an ink jet recording apparatus, and drying the aqueous ink composition on the recording medium by heating the recording medium to 40° C. or more. The aqueous ink composition used in the method contains a pigment, a first solvent and a second solvent, but does not contain glycerol. The first solvent content W1 is in the range of 3% to 6% by mass, and the ratio W2/W1 of the second solvent content W2 to the first solvent content W1 is 2 or more.Type: ApplicationFiled: January 28, 2011Publication date: July 28, 2011Applicant: Seiko Epson CorporationInventors: Katsuko Aoki, Hiroshi Mukai
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Patent number: 7731789Abstract: An ink composition containing an aprotic polar solvent, a thermoplastic resin, a pigment, a cyclic amide, a surfactant, and water and is printable on a recording surface that is a plastic film. The ink composition is capable of forming a record, having high weather resistance properties such as adhesion, scratch resistance, and water resistance, on a recording surface that is a plastic film.Type: GrantFiled: March 30, 2007Date of Patent: June 8, 2010Assignee: Seiko Epson CorporationInventors: Katsuko Aoki, Tsuyoshi Sano
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Publication number: 20100092674Abstract: An ink jet recording method for forming an image by adhering water-based ink to a metallic foil medium, in which the method includes forming an image while heating the medium to 40° C. to 50° C., the amount of ink droplets to be adhered to the medium is 4 to 25 ng per dot, and the water-based ink contains a pigment, 3 to 11 mass of a water-soluble resin solvent, 0.5 to 1.1 mass of a water-soluble resin, 2.1 to 4.5 mass of a resin emulsion, and a surfactant.Type: ApplicationFiled: October 13, 2009Publication date: April 15, 2010Inventors: Hiroshi MUKAI, Katsuko AOKI
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Publication number: 20100092675Abstract: An ink jet recording method for forming an image by adhering water-based ink to a non-absorbing or low-absorbing medium, including: forming an image while heating the medium, in which the water-based ink contains a first solvent having a boiling point of 210° C. to 280° C., a second solvent having a boiling point of 150° C. to 280° C., a water-insoluble colorant, a water-soluble resin, thermoplastic resin particles, a silicon surfactant, and water, and the surface tension when the first solvent is formed into an aqueous solution is lower than the surface tension when the second solvent is formed into an aqueous solution.Type: ApplicationFiled: October 14, 2009Publication date: April 15, 2010Inventor: Katsuko Aoki
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Publication number: 20100086690Abstract: A printing method employing an ink jet recording technique includes forming an image with an ink jet recording technique by ejecting droplets of a water-based ink composition onto a recording medium having no or low ink absorbency; and drying the water-based ink composition on the recording medium, the drying being conducted so as to at least overlap the forming. The water-based ink composition contains 2-pyrrolidone, a water-insoluble coloring agent, a water-soluble resin, thermoplastic resin particles, a silicone-based surfactant, 1,2-hexanediol, 1,3-propanediol, and water. The content of the 2-pyrrolidone in the water-based ink composition is 3.0 to 10.0 mass %; and the content of the 1,3-propanediol in the water-based ink composition is 5.0 to 10.0 mass %.Type: ApplicationFiled: October 7, 2009Publication date: April 8, 2010Inventor: Katsuko AOKI
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Publication number: 20100086691Abstract: A printing method employing an ink jet recording technique includes: forming an image with an ink jet recording technique by ejecting droplets of a water-based ink composition onto a recording medium having no or low ink absorbency; and drying the water-based ink composition on the recording medium, the drying being conducted so as to at least overlap the forming. The water-based ink composition contains at least one selected from N-methyl-2-pyrrolidone, tetramethylurea, and dimethyl sulfoxide; a water-insoluble coloring agent; a water-soluble resin; thermoplastic resin particles; a silicone-based surfactant; an acetylene glycol-based surfactant; a penetrating agent; a moisture retaining agent; and water. The total content of the N-methyl-2-pyrrolidone, the tetramethylurea, and the dimethyl sulfoxide in the water-based ink composition is 3.0 to 10.0 mass %. The content of the penetrating agent in the water-based ink composition is 3.0 to 8.0 mass %.Type: ApplicationFiled: October 7, 2009Publication date: April 8, 2010Inventors: Hiroshi MUKAI, Katsuko AOKI
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Patent number: 7665822Abstract: The present invention provides an ink jet recording apparatus having an ink jet recording head provided with a plurality of nozzles through which inks of a plurality of colors are ejected, a cap to be detachably brought into close contact with a nozzle face in which holes of the plurality of nozzles are formed, and ink-suction means which sucks an ink within the ink jet recording head by way of the cap. The apparatus is configured such that contact angles ?a of the inks with respect to the nozzle face and contact angles ?b of the inks with respect to the cap have a relation of ?a>?b; and the angles ?a are 50° or larger, and differences between the angles ?a and the angles ?b are 40° or larger.Type: GrantFiled: October 31, 2005Date of Patent: February 23, 2010Assignee: Seiko Epson CorporationInventor: Katsuko Aoki