Patents by Inventor Makoto Kaga

Makoto Kaga 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: 9499703
    Abstract: In the present invention, provided are an ink-jet image forming method employing actinic energy radiation curable ink-jet ink exhibiting no offset resistance during storage by superposing printed portions after printing in addition to excellent properties of printing durability, gloss evenness of coated paper and paper-feeding suitability, and an ink-jet ink set thereof. It is a feature that the ink-jet image forming method possessing the steps of providing colorless ink on a substrate, followed by heating the colorless ink provided on the substrate, and subsequently exposing the colorless ink provided on the substrate, to actinic energy radiation, wherein the colorless ink contains no colorant but an actinic energy radiation curable composition and a gelling agent with which a thermoreversible gel is formed.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: November 22, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Makoto Kaga, Akio Maeda
  • Patent number: 8733922
    Abstract: Provided is a print preparation method possessing an ejection step in which liquid drops of actinic energy radiation curable type ink-jet ink each containing a polymerizable compound, a photo-polymerizable initiator and a gelling agent are injected from an ink-jet recording head to supply the actinic energy radiation curable type ink-jet ink onto a recording medium, and an actinic energy radiation exposure step, wherein the print preparation method further comprises step (A) in which the recording medium is exposed to electromagnetic waves having a longer wavelength than a wavelength of an absorption wavelength of the photo-polymerization initiator contained in the actinic energy radiation curable type ink-jet ink from a side of a surface on which the image is formed, before conducting the actinic energy radiation exposure step, the print preparation method by which a print having images exhibiting excellent image wear resistance, gloss evenness and image density evenness is provided.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: May 27, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Makoto Kaga, Hirotaka Iijima
  • Publication number: 20130044168
    Abstract: In the present invention, provided are an ink jet image forming method employing actinic energy radiation curable ink-jet ink exhibiting no offset resistance during storage by superposing printed portions after printing in addition to excellent properties of printing durability, gloss evenness of coated paper and paper-feeding suitability, and an ink jet ink set thereof. It is a feature that the ink jet image forming method possessing the steps of providing colorless ink on a substrate, followed by heating the colorless ink provided on the substrate, and subsequently exposing the colorless ink provided on the substrate, to actinic energy radiation, wherein the colorless ink contains no colorant but an actinic energy radiation curable composition and a gelling agent with which a thermoreversible gel is formed.
    Type: Application
    Filed: September 13, 2010
    Publication date: February 21, 2013
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Makoto Kaga, Akio Maeda
  • Publication number: 20130038668
    Abstract: Provided is a print preparation method possessing an ejection step in which liquid drops of actinic energy radiation curable type ink-jet ink each containing a polymerizable compound, a photo-polymerizable initiator and a gelling agent are injected from an ink-jet recording head to supply the actinic energy radiation curable type ink-jet ink onto a recording medium, and an actinic energy radiation exposure step, wherein the print preparation method further comprises step (A) in which the recording medium is exposed to electromagnetic waves having a longer wavelength than a wavelength of an absorption wavelength of the photo-polymerization initiator contained in the actinic energy radiation curable type ink-jet ink from a side of a surface on which the image is formed, before conducting the actinic energy radiation exposure step, the print preparation method by which a print having images exhibiting excellent image wear resistance, gloss evenness and image density evenness is provided.
    Type: Application
    Filed: April 11, 2011
    Publication date: February 14, 2013
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Makoto Kaga, Hirotaka Iijima
  • Patent number: 7654661
    Abstract: An image forming method in which after recording by ejecting ink on an ink-jet recording medium containing a thermoplastic resin in the surface layer, a fixing process to fuse said thermoplastic resin or make it into a film is provided, wherein a colorless or white liquid is supplied on said ink-jet recording medium before the fixing process.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: February 2, 2010
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Shuji Kida, Shinichi Suzuki, Hidenobu Ohya, Makoto Kaga, Teruyuki Fukuda
  • Patent number: 7655713
    Abstract: A non-aqueous ink-jet ink containing a pigment, a resin for fixing an image and Compound A represented by Formula (1) or Formula (2), wherein a content of Compound A in the ink-jet ink is from 1.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: February 2, 2010
    Assignee: Konica Minolta IJ Technologies, Inc.
    Inventors: Manabu Kaneko, Makoto Kaga, Masayuki Ushiku, Kenichi Ohkubo
  • Publication number: 20090011264
    Abstract: A nonaqueous ink-jet ink comprising at least solvents (A) and (B) cited below, a pigment, and a polymer compound, wherein the content of solvent (A) is 3-15% by weight based on the total weight of the ink-jet ink, and the content of solvent (B) is 50-90% by weight: Solvent (A): 1,3-dimethyl-2-imidazolidinone; Solvent (B): a solvent comprising at least one compound selected from the group consisting of the compounds represented by following Formulas (1) and (2): Formula (1) R1—(OX1)2—O—R2, and
    Type: Application
    Filed: January 26, 2007
    Publication date: January 8, 2009
    Applicant: KONICA MINOLTA IJ TECHNOLOGIES, INC.
    Inventors: Kenichi Ohkubo, Hisato Kato, Makoto Kaga
  • Patent number: 7416595
    Abstract: An ink-jet ink comprising Component (A), Component (B), and Component (C), wherein a content of Component (A) is 20-60% by weight, a content of Component (B) is 10-50% by weight, and when the content of Component (A) is 100% by weight, the total content ratio of a class of glycol, a class of polyol, and glycerin is 0-20% by weight, and a surface tension of the ink-jet ink is 18-27 mN/m; wherein Component (A) is 1,3-dimethyl-2-imidazolidinone or ?-butyrolactone, Component (B) is water, and Component (C) is a pigment.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: August 26, 2008
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kenichi Ohkubo, Hisato Kato, Makoto Kaga, Yoshinori Tsubaki, Kumiko Furuno
  • Publication number: 20080002009
    Abstract: An image forming method in which after recording by ejecting ink on an ink-jet recording medium containing a thermoplastic resin in the surface layer, a fixing process to fuse said thermoplastic resin or make it into a film is provided, wherein a colorless or white liquid is supplied on said ink-jet recording medium before the fixing process.
    Type: Application
    Filed: August 24, 2007
    Publication date: January 3, 2008
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Shuji Kida, Shinichi Suzuki, Hidenobu Ohya, Makoto Kaga, Teruyuki Fukuda
  • Publication number: 20070287772
    Abstract: A non-aqueous ink-jet ink containing a pigment, a resin for fixing an image and Compound A represented by Formula (1) or Formula (2), wherein a content of Compound A in the ink-jet ink is from 1.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 13, 2007
    Applicant: KONICA MINOLTA IJ TECHNOLOGIES, INC.
    Inventors: Manabu Kaneko, Makoto Kaga, Masayuki Ushiku, Kenichi Ohkubo
  • Patent number: 7273276
    Abstract: An image forming method in which after recording by ejecting ink on an ink-jet recording medium containing a thermoplastic resin in the surface layer, a fixing process to fuse said thermoplastic resin or make it into a film is provided, wherein a colorless or white liquid is supplied on said ink-jet recording medium before the fixing process.
    Type: Grant
    Filed: July 25, 2002
    Date of Patent: September 25, 2007
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Shuji Kida, Shinichi Suzuki, Hidenobu Ohya, Makoto Kaga, Teruyuki Fukuda
  • Patent number: 7261405
    Abstract: An ink-jet recording method of recording an ink-jet recording ink containing at least a water-soluble dye and a resinous micro-particle dispersion on an ink-jet recording medium, comprising steps of providing a colorless ink on at least a part of the ink-jet recording medium by a liquid providing section separately installed from a recording section for the ink-jet recording ink, wherein the colorless ink contains at least a resin and is substantially colorless.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: August 28, 2007
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hidenobu Ohya, Makoto Kaga, Kei Kudo, Shinsaku Kashiwamura, Teruyuki Fukuda, Yuki Ogasawara
  • Publication number: 20070182796
    Abstract: An ink-jet ink comprising Component (A), Component (B), and Component (C), wherein a content of Component (A) is 20-60% by weight, a content of Component (B) is 10-50% by weight, and when the content of Component (A) is 100% by weight, the total content ratio of a class of glycol, a class of polyol, and glycerin is 0-20% by weight, and a surface tension of the ink-jet ink is 18-27 mN/m; wherein Component (A) is 1,3-dimethyl-2-imidazolidinone or ?-butyrolactone, Component (B) is water, and Component (C) is a pigment.
    Type: Application
    Filed: February 1, 2007
    Publication date: August 9, 2007
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kenichi OHKUBO, Hisato KATO, Makoto KAGA, Yoshinori TSUBAKI, Kumiko FURUNO
  • Patent number: 7238399
    Abstract: An ink jet recording medium and its manufacturing method are disclosed, the medium comprising a substrate and provided thereon, plural ink absorption layers including an upper layer containing inorganic pigment and thermoplastic particles, wherein the content by weight of the inorganic pigment is greater than that of the thermoplastic particles.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: July 3, 2007
    Assignee: Konica Corporation
    Inventors: Hidenobu Ohya, Shuji Kida, Atsushi Tomotake, Shinichi Suzuki, Makoto Kaga
  • Patent number: 7131721
    Abstract: A method for printing an ink-jet image, including the step of: ejecting droplets of an ink on an ink-jet recording media, wherein the ink contains nonionic resinous micro-particles, a water-soluble dye, water and an organic solvent; and the ink-jet recording media contains a support having thereon at least one ink absorbing layer and the outermost layer of the ink-jet recording media contains a porous structure containing a cationic polymer and inorganic pigment micro-particles.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: November 7, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Shinichi Suzuki, Shuji Kida, Hidenobu Ohya, Makoto Kaga, Teruyuki Fukuda
  • Publication number: 20060240201
    Abstract: An object of the present invention is to provide an ink-jet recording medium and a manufacturing method thereof exhibiting excellent outdoor durability, high gloss, and high image quality, accompanied with excellent cockling resistance. Also disclosed is an ink-jet recording medium possessing a support made of cellulose pulp as a component, having surface roughness Ra of at least 0.05 ?m and at most 0.20 ?m when a reference length is 4 mm, and a cut-off value is 0.8 mm, a layer formed by coating a coating solution containing a resin dissolved in an organic solvent, provided on the support, and an ink-absorbing layer is provided on the layer formed by coating the coating solution containing the resin dissolved in the organic solvent.
    Type: Application
    Filed: April 17, 2006
    Publication date: October 26, 2006
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kimie Tachibana, Kazumasa Matsumoto, Makoto Kaga, Masayoshi Yamauchi
  • Publication number: 20060216444
    Abstract: An inkjet recording medium comprising a support containing a cellulose pulp having thereon an ink-absorbing layer, wherein the support is applied with an aqueous coating solution comprising an aqueous emulsion resin on a surface where the ink-absorbing layer is to be provided, followed by being pressed with a surface smoothing roller at a temperature not higher than a glass transition temperature of the aqueous emulsion resin.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 28, 2006
    Inventors: Masayoshi Yamauchi, Kazumasa Matsumoto, Makoto Kaga
  • Publication number: 20060028527
    Abstract: An inkjet recording medium comprising a support having thereon an interlayer and an ink-absorbing layer in that order, wherein: a C value of the support is not less than 50, the C value being a scale of image clarity; a 60° specular glossiness of the support is not less than 20%; and a moisture permeability of the support after the interlayer is provided is no less than 100 g/m2/day and not more than 5000 g/m2day.
    Type: Application
    Filed: July 21, 2005
    Publication date: February 9, 2006
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Makoto Kaga, Masayoshi Yamauchi
  • Patent number: 6935733
    Abstract: A fixing belt for fixing an ink-jet image recorded on an ink-jet recording material, the fixing belt including a base material having thereon a base-surface modifying layer and a releasing layer in the order, wherein the base-surface modifying layer has a pencil hardness of HB or a higher hardness and the releasing layer includes a silicone resin.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: August 30, 2005
    Assignee: Konica Corporation
    Inventors: Teruyuki Fukuda, Shuji Kida, Shinichi Suzuki, Hidenobu Ohya, Makoto Kaga
  • Publication number: 20050140767
    Abstract: A fixing belt or a fixing roller for fixing an ink jet image recorded on an ink jet recording material by heat, the fixing belt comprising a base material having thereon a surface layer contacting the ink jet recording material during fixing, the fixing roller comprising a heating roller and a pressure roller having base materials A and B, respectively, at least one of the heating roller and the pressure roller having a. surface layer contacting the ink jet recording material during fixing, wherein the surface layer has a peel strength of not less than 30 g/5 cm or a pencil hardness of HB or more, and the surface layer is produced by a method comprising the steps of: coating a hardenable silicone on the base material by a dip coating; and hardening the coated hardenable silicone by heat.
    Type: Application
    Filed: February 22, 2005
    Publication date: June 30, 2005
    Inventors: Makoto Kaga, Shuji Kida, Shinichi Suzuki, Hidenobu Ohya, Teruyuki Fukuda, Fujio Miyamoto