Patents by Inventor Shunsuke Uozumi
Shunsuke Uozumi 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: 11242649Abstract: An ink set for textile printing is disclosed which includes a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm3)1/2 and water, and an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 10° C. or higher, an organic solvent (D) and water. A method for producing a printed textile item is also disclosed.Type: GrantFiled: February 13, 2018Date of Patent: February 8, 2022Assignee: RISO KAGAKU CORPORATIONInventors: Yuki Urano, Takahisa Yamazaki, Hideki Imanishi, Shunsuke Uozumi
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Patent number: 10995230Abstract: An aqueous pigment ink for textile inkjet printing is disclosed that contains a pigment, a first water-dispersible resin, a second water-dispersible resin and water, wherein the first water-dispersible resin is at least one resin selected from the group consisting of a water-dispersible urethane resin, a water-dispersible (meth)acrylic resin and a water-dispersible styrene/(meth)acrylic resin, the second water-dispersible resin is a water-dispersible polyester resin, the total amount of the first water-dispersible resin and the second water-dispersible resin is from 2 to 18% by mass relative to the total mass of the ink, and the mass ratio of the second water-dispersible resin relative to the first water-dispersible resin (second water-dispersible resin/first water-dispersible resin) is from 0.1 to 5.0. A method for producing a printed textile item and an ink set are also disclosed.Type: GrantFiled: August 20, 2018Date of Patent: May 4, 2021Assignee: RISO KAGAKU CORPORATIONInventors: Takahisa Yamazaki, Akiko Hayashi, Shunsuke Uozumi, Kokoro Kinoe
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Patent number: 10982385Abstract: A pretreatment liquid for inkjet textile printing is disclosed that includes water and a cellulose-based polymer having a weight average molecular weight of at least 50,000. A method for producing a printed textile item and an ink set for inkjet textile printing are also disclosed.Type: GrantFiled: March 11, 2019Date of Patent: April 20, 2021Assignee: RISO KAGAKU CORPORATIONInventors: Kokoro Kinoe, Akiko Hayashi, Takahisa Yamazaki, Shunsuke Uozumi
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Publication number: 20190352528Abstract: An aqueous pigment ink for textile inkjet printing is disclosed that contains a pigment, a first water-dispersible resin, a second water-dispersible resin and water, wherein the first water-dispersible resin is at least one resin selected from the group consisting of a water-dispersible urethane resin, a water-dispersible (meth)acrylic resin and a water-dispersible styrene/(meth)acrylic resin, the second water-dispersible resin is a water-dispersible polyester resin, the total amount of the first water-dispersible resin and the second water-dispersible resin is from 2 to 18% by mass relative to the total mass of the ink, and the mass ratio of the second water-dispersible resin relative to the first water-dispersible resin (second water-dispersible resin/first water-dispersible resin) is from 0.1 to 5.0. A method for producing a printed textile item and an ink set are also disclosed.Type: ApplicationFiled: August 20, 2018Publication date: November 21, 2019Inventors: Takahisa Yamazaki, Akiko Hayashi, Shunsuke Uozumi, Kokoro Kinoe
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Publication number: 20190352846Abstract: A pretreatment liquid for inkjet textile printing is disclosed that includes water and a cellulose-based polymer having a weight average molecular weight of at least 50,000. A method for producing a printed textile item and an ink set for inkjet textile printing are also disclosed.Type: ApplicationFiled: March 11, 2019Publication date: November 21, 2019Inventors: Kokoro KINOE, Akiko HAYASHI, Takahisa YAMAZAKI, Shunsuke UOZUMI
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Patent number: 10150881Abstract: An aqueous inkjet ink set for textile printing is disclosed, the aqueous inkjet ink set including a first ink containing a water-dispersible resin having a glass transition point of less than ?5° C., a coloring material and water, and a second ink containing a water-dispersible resin having a glass transition point of from ?5° C. to 35° C., a coloring material and water. A method for producing a printed textile item is also disclosed.Type: GrantFiled: July 27, 2017Date of Patent: December 11, 2018Assignee: RISO KAGAKU CORPORATIONInventors: Takahisa Yamazaki, Yuki Urano, Hideki Imanishi, Shunsuke Uozumi
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Publication number: 20180237987Abstract: An ink set for textile printing is disclosed which includes a pretreatment liquid containing a metal salt, a water-dispersible resin (A), an organic solvent (B) having an SP value of 10 to 14 (cal/cm3)1/2 and water, and an ink containing a pigment, a water-dispersible resin (C) having a glass transition point of 10° C. or higher, an organic solvent (D) and water. A method for producing a printed textile item is also disclosed.Type: ApplicationFiled: February 13, 2018Publication date: August 23, 2018Inventors: Yuki URANO, Takahisa YAMAZAKI, Hideki IMANISHI, Shunsuke UOZUMI
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Patent number: 9951468Abstract: An aqueous inkjet ink set for textile printing is disclosed, the aqueous inkjet ink set including two or more aqueous inkjet inks that include a black ink, wherein among the charge density Cd values measured by the streaming potential method for the two or more aqueous inkjet inks, the Cd value (CdK) for the black ink is the highest, and the absolute value of the difference between the Cd value (CdK) for the black ink and the Cd value (Cd2) for the aqueous inkjet ink having the second highest Cd value is 80 ?eq/g or greater. A method for producing a printed item is also disclosed.Type: GrantFiled: April 7, 2017Date of Patent: April 24, 2018Assignee: RISO KAGAKU CORPORATIONInventors: Sayako Arai, Yuki Urano, Shunsuke Uozumi, Hideki Imanishi, Takahisa Yamazaki
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Patent number: 9944808Abstract: A non-aqueous pigment ink that includes a colorant and a non-aqueous solvent, wherein the colorant is a pigment complex of a pigment, a dispersant and an amine compound, the amine compound is a diamine and/or triamine comprising two or more primary and/or secondary amino groups within each molecule, and the dispersant comprises two or more reactive functional groups within each molecule that exhibit reactivity with the amino groups of the amine compound.Type: GrantFiled: March 20, 2008Date of Patent: April 17, 2018Assignee: RISO KAGAKU CORPORATIONInventors: Shunsuke Uozumi, Ayako Mochizuki
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Publication number: 20180030301Abstract: An aqueous inkjet ink set for textile printing is disclosed, the aqueous inkjet ink set including a first ink containing a water-dispersible resin having a glass transition point of less than ?5° C., a coloring material and water, and a second ink containing a water-dispersible resin having a glass transition point of from ?5° C. to 35° C., a coloring material and water. A method for producing a printed textile item is also disclosed.Type: ApplicationFiled: July 27, 2017Publication date: February 1, 2018Applicant: RISO KAGAKU CORPORATIONInventors: Takahisa YAMAZAKI, Yuki URANO, Hideki IMANISHI, Shunsuke UOZUMI
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Publication number: 20170314194Abstract: An aqueous inkjet ink set for textile printing is disclosed, the aqueous inkjet ink set including two or more aqueous inkjet inks that include a black ink, wherein among the charge density Cd values measured by the streaming potential method for the two or more aqueous inkjet inks, the Cd value (CdK) for the black ink is the highest, and the absolute value of the difference between the Cd value (CdK) for the black ink and the Cd value (Cd2) for the aqueous inkjet ink having the second highest Cd value is 80 ?eq/g or greater. A method for producing a printed item is also disclosed.Type: ApplicationFiled: April 7, 2017Publication date: November 2, 2017Inventors: Sayako ARAI, Yuki URANO, Shunsuke UOZUMI, Hideki IMANISHI, Takahisa YAMAZAKI
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Patent number: 8642695Abstract: A non-aqueous pigment ink comprising a pigment, a pigment dispersant and a non-aqueous solvent, wherein the pigment dispersant is an acrylic polymer comprising, as constituent monomers, (M1) an alkyl(meth)acrylate having an alkyl group of 12 or more carbon atoms, (M2) a (meth)acrylic acid derivative having an amino group, and (M3) a (meth)acrylic acid derivative having a glycidyl group, in which the combination of all the constituent monomers comprises from 7 to 15 mol % of the monomer (M2) and from 0.5 to 3 mol % of the monomer (M3) and the molar ratio (M2)/(M3) between the monomer (M2) and the monomer (M3) is within a range from 4 to 20.Type: GrantFiled: December 10, 2008Date of Patent: February 4, 2014Assignee: Riso Kagaku CorporationInventors: Shunsuke Uozumi, Ayako Mochizuki
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Patent number: 8389622Abstract: A non-aqueous pigment ink comprising a pigment, a pigment dispersant and a non-aqueous solvent, wherein the pigment dispersant is an acrylic polymer comprising, as constituent monomers, (M1) an alkyl (meth)acrylate having an alkyl group of 12 or more carbon atoms, (M2) a (meth)acrylic acid derivative having an amino group, and (M3) (meth)acrylic acid and/or a (meth)acrylic acid derivative having a carboxyl group, in which a combination of all the constituent monomers comprises from 8 to 15 mol % of the monomer (M2) and from 0.6 to 8 mol % of the monomer (M3), and the molar ratio (M2)/(M3) between the monomer (M2) and the monomer (M3) is within a range from 1.3 to 15.Type: GrantFiled: December 10, 2008Date of Patent: March 5, 2013Assignee: Riso Kagaku CorporationInventors: Shunsuke Uozumi, Ayako Mochizuki
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Patent number: 8342670Abstract: In an inkjet printing system using an ink which includes a coloring material dispersed in a solvent, it is aimed that printing density is improved by thickening the ink on a printing medium so as to stay the coloring material on the surface of the printing medium. An inkjet printing method is provided, in which printing is performed by ejecting one of first and second inks onto a printing medium, and then successively ejecting the other ink so as to overlay it on the one ink, wherein the first ink includes at least a first organic solvent and an ?,?-unsaturated carbonyl compound, the second ink includes at least a second organic solvent and an organic compound reactive as a nucleophile with the ?,?-unsaturated carbonyl compound, and at least one of the first and second inks includes a coloring material.Type: GrantFiled: August 4, 2009Date of Patent: January 1, 2013Assignee: Riso Kagaku CorporationInventors: Sayako Arai, Shunsuke Uozumi, Shinichiro Shimura
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Patent number: 8231722Abstract: In an inkjet printing system using an emulsion ink, it is aimed that printing density is improved particularly for a normal paper. An inkjet printing method is provided, in which printing is performed by ejecting one of first and second inks onto a printing medium, and then successively ejecting the other ink so as to overlay it in the one ink, wherein the first ink is a water-in-oil (W/O) emulsion ink comprising the coloring material which is provided with an acidic group on a surface in the water phase, and the second ink is a water-in-oil (W/O) emulsion ink comprising a polyvalent metal salt in the water phase. Preferable acidic group is carboxylic group, sulfuric acid group and phosphoric group. Preferable polyvalent metal salt is a salt composed of metal ions such as Ca++, Cu++, Ni++, Mg++, Zn++, Ba++, Al+++, Fe+++ and Cr+++.Type: GrantFiled: October 9, 2009Date of Patent: July 31, 2012Assignee: Riso Kagaku CorporationInventors: Shunsuke Uozumi, Sayako Arai, Shin-ichiro Shimura
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Publication number: 20110192318Abstract: A water-based inkjet ink containing at least water, a low polarity water-soluble organic solvent, a pigment and optionally a basic substance, wherein the water constitutes 60 percent by mass or less of the total quantity of the ink while the water-soluble organic solvent constitutes 15 percent by mass or more of the total quantity of the ink, the pigment includes a self-dispersible pigment that has anionic functional groups on its surface and contains, as counter ions, quaternary ammonium ions represented by the formula (1) wherein R1, R2, R3 and R4 independently represent a substituted or unsubstituted alkyl group.Type: ApplicationFiled: October 8, 2009Publication date: August 11, 2011Inventors: Akiko Hayashi, Kohji Nomura, Sayako Arai, Yoshiaki Ishimaru, Ayako Mochizuki, Shunsuke Uozumi
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Publication number: 20100302330Abstract: Disclosed is an image formation method comprising: using an inkjet recording method and an active energy beam-curable ink to form, on a permeable substrate having an ink image formed thereon, an image that corresponds with the ink image and is superimposed on top of the ink image.Type: ApplicationFiled: April 9, 2010Publication date: December 2, 2010Applicant: RISO KAGAKU CORPORATIONInventors: Shunsuke UOZUMI, Kazuhiro HIGASHI, Masami SHINOZAKI
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Publication number: 20100234523Abstract: An active energy beam-curable ink, comprising a polytetramethylene glycol diacrylate, a bifunctional to tetrafunctional urethane acrylate and a colorant, wherein an amount of the polytetramethylene glycol diacrylate relative to a total mass of the ink is not less than 35% by mass, and an amount of the bifunctional to tetrafunctional urethane acrylate relative to a total mass of the ink is within a range from 5 to 35% by mass.Type: ApplicationFiled: February 18, 2010Publication date: September 16, 2010Applicant: RISO KAGAKU CORPORATIONInventors: Shunsuke Uozumi, Hajime Tsunoda, Kazuhiro Higashi, Masami Shinozaki
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Patent number: 7767013Abstract: A non-aqueous pigment ink includes a colorant and a non-aqueous solvent, wherein the colorant is a pigment complex of a pigment, a dispersant and a polymer compound, the polymer compound contains 2 or more primary and/or secondary amino groups within each molecule, and the dispersant contains 2 or more reactive functional groups within each molecule that exhibit reactivity with the amino groups of the polymer compound.Type: GrantFiled: June 28, 2007Date of Patent: August 3, 2010Assignee: Riso Kagaku CorporationInventors: Shunsuke Uozumi, Kazuyoshi Shioiri
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Publication number: 20100136236Abstract: Disclosed is an ink set, comprising: a non-aqueous pigment ink comprising a pigment, a non-aqueous solvent, and a non-aqueous resin dispersion microparticle having a pigment dispersion capability, wherein the non-aqueous resin dispersion microparticle is a graft copolymer prepared by introducing urethane groups into a copolymer formed from a monomer mixture comprising an alkyl(meth)acrylate (A) having an alkyl group of 12 or more carbon atoms, a reactive (meth)acrylate (B) having a functional group capable of reacting with an amino group, and a (meth)acrylate (C) having a ?-diketone group or ?-keto ester group by reacting the functional group capable of reacting with an amino group with an amino alcohol and a polyvalent isocyanate compound, and a treatment liquid comprising a compound capable of reacting with the ?-diketone group or ?-keto ester group.Type: ApplicationFiled: November 12, 2009Publication date: June 3, 2010Applicant: RISO KAGAKU CORPORATIONInventors: Tetsuo Hosoya, Sayako Arai, Shunsuke Uozumi, Yoshifumi Watanabe, Shin-ichiro Shimura, Marie Morinaga