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).

  • Patent number: 11242649
    Abstract: 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: Grant
    Filed: February 13, 2018
    Date of Patent: February 8, 2022
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Yuki Urano, Takahisa Yamazaki, Hideki Imanishi, Shunsuke Uozumi
  • Patent number: 10995230
    Abstract: 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: Grant
    Filed: August 20, 2018
    Date of Patent: May 4, 2021
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Takahisa Yamazaki, Akiko Hayashi, Shunsuke Uozumi, Kokoro Kinoe
  • Patent number: 10982385
    Abstract: 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: Grant
    Filed: March 11, 2019
    Date of Patent: April 20, 2021
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Kokoro Kinoe, Akiko Hayashi, Takahisa Yamazaki, Shunsuke Uozumi
  • Publication number: 20190352846
    Abstract: 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: Application
    Filed: March 11, 2019
    Publication date: November 21, 2019
    Inventors: Kokoro KINOE, Akiko HAYASHI, Takahisa YAMAZAKI, Shunsuke UOZUMI
  • Publication number: 20190352528
    Abstract: 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: Application
    Filed: August 20, 2018
    Publication date: November 21, 2019
    Inventors: Takahisa Yamazaki, Akiko Hayashi, Shunsuke Uozumi, Kokoro Kinoe
  • Patent number: 10150881
    Abstract: 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: Grant
    Filed: July 27, 2017
    Date of Patent: December 11, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Takahisa Yamazaki, Yuki Urano, Hideki Imanishi, Shunsuke Uozumi
  • Publication number: 20180237987
    Abstract: 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: Application
    Filed: February 13, 2018
    Publication date: August 23, 2018
    Inventors: Yuki URANO, Takahisa YAMAZAKI, Hideki IMANISHI, Shunsuke UOZUMI
  • Patent number: 9951468
    Abstract: 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: Grant
    Filed: April 7, 2017
    Date of Patent: April 24, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Sayako Arai, Yuki Urano, Shunsuke Uozumi, Hideki Imanishi, Takahisa Yamazaki
  • Patent number: 9944808
    Abstract: 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: Grant
    Filed: March 20, 2008
    Date of Patent: April 17, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Shunsuke Uozumi, Ayako Mochizuki
  • Publication number: 20180030301
    Abstract: 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: Application
    Filed: July 27, 2017
    Publication date: February 1, 2018
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Takahisa YAMAZAKI, Yuki URANO, Hideki IMANISHI, Shunsuke UOZUMI
  • Publication number: 20170314194
    Abstract: 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: Application
    Filed: April 7, 2017
    Publication date: November 2, 2017
    Inventors: Sayako ARAI, Yuki URANO, Shunsuke UOZUMI, Hideki IMANISHI, Takahisa YAMAZAKI
  • Patent number: 8642695
    Abstract: 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: Grant
    Filed: December 10, 2008
    Date of Patent: February 4, 2014
    Assignee: Riso Kagaku Corporation
    Inventors: Shunsuke Uozumi, Ayako Mochizuki
  • Patent number: 8389622
    Abstract: 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: Grant
    Filed: December 10, 2008
    Date of Patent: March 5, 2013
    Assignee: Riso Kagaku Corporation
    Inventors: Shunsuke Uozumi, Ayako Mochizuki
  • Patent number: 8342670
    Abstract: 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: Grant
    Filed: August 4, 2009
    Date of Patent: January 1, 2013
    Assignee: Riso Kagaku Corporation
    Inventors: Sayako Arai, Shunsuke Uozumi, Shinichiro Shimura
  • Patent number: 8231722
    Abstract: 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: Grant
    Filed: October 9, 2009
    Date of Patent: July 31, 2012
    Assignee: Riso Kagaku Corporation
    Inventors: Shunsuke Uozumi, Sayako Arai, Shin-ichiro Shimura
  • Publication number: 20110192318
    Abstract: 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: Application
    Filed: October 8, 2009
    Publication date: August 11, 2011
    Inventors: Akiko Hayashi, Kohji Nomura, Sayako Arai, Yoshiaki Ishimaru, Ayako Mochizuki, Shunsuke Uozumi
  • Publication number: 20100302330
    Abstract: 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: Application
    Filed: April 9, 2010
    Publication date: December 2, 2010
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Shunsuke UOZUMI, Kazuhiro HIGASHI, Masami SHINOZAKI
  • Publication number: 20100234523
    Abstract: 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: Application
    Filed: February 18, 2010
    Publication date: September 16, 2010
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Shunsuke Uozumi, Hajime Tsunoda, Kazuhiro Higashi, Masami Shinozaki
  • Patent number: 7767013
    Abstract: 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: Grant
    Filed: June 28, 2007
    Date of Patent: August 3, 2010
    Assignee: Riso Kagaku Corporation
    Inventors: Shunsuke Uozumi, Kazuyoshi Shioiri
  • Publication number: 20100136236
    Abstract: 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: Application
    Filed: November 12, 2009
    Publication date: June 3, 2010
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Tetsuo Hosoya, Sayako Arai, Shunsuke Uozumi, Yoshifumi Watanabe, Shin-ichiro Shimura, Marie Morinaga