Carbohydrate Or Derivative Containing Patents (Class 106/31.68)
  • Patent number: 9340694
    Abstract: A sublimating dye ink for ink jets of the present invention contains water, a sublimating dye, a humectant and an anionic polymer dispersant. The anionic polymer dispersant is a styrene-(meth)acrylic acid-based copolymer having an acid value of 160 to 250 mgKOH/g and a weight average molecular weight of 8,000 to 20,000. The ink contains further as a penetrant an acetylene glycol-based compound expressed by a chemical formula (I) below. A sublimation transfer dyeing method of the present invention includes: inkjet printing the ink on a sheet recording medium; and superposing a printed surface of the recording medium on an object to be dyed, then heating to sublimate-transfer the sublimating dye to the object to be dyed.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: May 17, 2016
    Assignee: Kiwa Chemical Industry Co., Ltd.
    Inventors: Tadashi Oura, Hiroki Tanaka
  • Patent number: 9206324
    Abstract: A method of producing a printable composition comprises mixing a quantity of particulate semiconductor material with a quantity of a binder. The semiconductor material is typically nanoparticulate silicon with a particle size in the range from 5 nanometers to 10 microns. The binder is a self-polymerizing material comprising a natural oil, or a derivative or synthetic analog thereof. Preferably the binder comprises a natural polymer formed by auto-polymerization of a precursor consisting of a natural oil, or its derivatives including pure unsaturated fatty acids, mono- and di-glycerides, or methyl and ethyl esters of the corresponding fatty acids. The method may include applying the printable composition to a substrate, in single or multiple layers, and allowing the printable composition to cure to define the component or conductor on the substrate.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: December 8, 2015
    Assignee: PST SENSORS (PROPIETARY) LIMITED
    Inventors: David Thomas Britton, Ekundare Ayodele Odo, Margit Harting
  • Patent number: 9061896
    Abstract: A method for manufacturing a MEMS device includes providing a cavity within a layer adjacent to a sacrificial layer. The cavity extends to the sacrificial layer and includes a capillary slot protruding into the layer. The sacrificial layer is removed by exposing the sacrificial layer to an etching agent that is introduced through the cavity.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: June 23, 2015
    Assignee: Infineon Technologies AG
    Inventors: Alfons Dehe, Christoph Glacer, Soenke Pirk
  • Patent number: 8932392
    Abstract: There is provided a water-based ink for ink-jet recording including: a colorant; water; glycerol; and at least one of raffinose and a derivative thereof in an amount ranging from more than 0% by weight to not more than 2% by weight with respect to an entire amount of the water-based ink. There is also provided a water-based ink for ink-jet recording including: a colorant; water; glycerol; diethylene glycol; and at least one of raffinose and a derivative thereof.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: January 13, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Chisato Hayashi
  • Publication number: 20140292903
    Abstract: There is provided a water-based ink for ink-jet recording, including: a pigment; water; and alkyl glucoside which has alkyl group having 6 or more carbon atoms.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Mitsunori Maeda
  • Patent number: 8808441
    Abstract: The present disclosure provides inkjet inks and associated methods and systems. In one example, an inkjet ink can comprise an ink vehicle and a colorant, wherein the ink vehicle includes an organic co-solvent, water, and from 0.0001 wt % to 0.1 wt % dextran based on the inkjet ink as a whole.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: August 19, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Benjamin Abelovski
  • Publication number: 20140168331
    Abstract: The present disclosure provides inkjet inks and associated methods and systems. In one example, an inkjet ink can comprise an ink vehicle and a colorant, wherein the ink vehicle includes an organic co-solvent, water, and from 0.0001 wt % to 0.1 wt % dextran based on the inkjet ink as a whole.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventor: Benjamin Abelovski
  • Patent number: 8721780
    Abstract: An ink composition includes a slightly water-soluble alkanediol having 7 to 10 carbon atoms and cyclodextrin compound.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: May 13, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Shuichi Koganehira, Shinichi Yamamoto
  • Patent number: 8721781
    Abstract: An ink composition includes a cyclic saccharide and hydantoin or a derivative thereof.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: May 13, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Shuichi Koganehira, Shinichi Yamamoto
  • Publication number: 20140055534
    Abstract: There is provided a water-based ink for ink jet recording including: a colorant; water; glycerol; and at least one of raffinose and a derivative thereof in an amount ranging from more than 0% by weight to not more than 2% by weight with respect to an entire amount of the water-based ink. There is also provided a water-based ink for ink jet recording including: a colorant; water; glycerol; diethylene glycol; and at least one of raffinose and a derivative thereof.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 27, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Chisato Hayashi
  • Publication number: 20140026784
    Abstract: The present disclosure provides an ink for inkjet printing. The ink contains an aqueous vehicle, a pigment and an effective amount of a hydrophilic polymer with persistence length greater than 10 nm as a bleed control agent. The ink exhibits reduced intercolor bleed when printed, for example, on plain paper.
    Type: Application
    Filed: May 29, 2012
    Publication date: January 30, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Jose Esteban Valentini, Patricia Metzger Cotts, Gregory Paul Morris
  • Publication number: 20130047886
    Abstract: A water-based ink for ink jet recording includes a self-dispersible pigment modified by phosphate group; water; a water-soluble organic solvent; a cationic surfactant which is contained at 0.001% by weight to 0.05% by weight in the water-based ink for ink jet recording; and at least one selected from the group consisting of boric acids, a chelate agent, a reducing sugar and a sugar alcohol.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 28, 2013
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Satoshi Okuda, Junichiro Sugimoto, Tatsunosuke Hoshi, Atsushi Nakamura, Mitsunori Maeda
  • Publication number: 20130008343
    Abstract: The present invention relates to a pigment composition containing a pigment and chondroitin sulfate or its salt, in which a content of chondroitin sulfate or its salt is equal to or larger than 0.1 part by weight (pbw) over 1 pbw of the pigment, and such pigment composition is available in the use for drug medicines and the like, and exhibits better dispersibility.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 10, 2013
    Applicant: TAISHO PHARMACEUTICAL CO., LTD
    Inventors: Toshiki Nakajima, Masakiyo Urabe, Mariko Numao, Hiroki Tada, Kenji Yamabe
  • Patent number: 8282718
    Abstract: A surface treatment solution for a recording paper on which ink-jet recording is performed with a water-based ink, the surface treatment solution includes calcium alginate which is contained by 0.008 wt % to 0.074 wt % in the surface treatment solution, sodium alginate which is contained by 0.013 wt % to 0.084 wt % in the surface treatment solution, a water-soluble organic solvent, and water.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: October 9, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Hideji Fukaya, Ryuji Kato
  • Publication number: 20120176440
    Abstract: An oily ink, wherein the oily ink comprises a pigment, a pigment dispersant, and an organic solvent, said oily ink comprising: 0.1 to 10% by mass, relative to a mass of the oily ink, of a nonionic surfactant having a HLB of from 6 to 16, wherein the nonionic surfactant having a HLB of from 6 to 16 is at least one selected from the group consisting of fatty acid esters, ethers of fatty acid esters, and polyoxyalkylene ethers.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 12, 2012
    Applicant: RISO KAGAKU COPORATION
    Inventors: Yoshifumi WATANABE, Kazuyuki ANDO
  • Publication number: 20110261107
    Abstract: According to one embodiment, an aqueous inkjet ink includes water and a pigment. The pigment is contained in the aqueous inkjet ink in an amount of less than 5 wt %. The queous inkjet ink has viscosities (mPa·s) measured at 25° C. using a cone-plate type viscometer and satisfying the following relationships: VB/VA?1.5 3 mPa·s?VA?15 mPa·s wherein VA represents a viscosity measured at a rotation speed of 50 rpm and VB represents a viscosity measured at a rotation speed of 2.5 rpm.
    Type: Application
    Filed: March 18, 2011
    Publication date: October 27, 2011
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Takafumi Hara, Ryozo Akiyama, Maiko Yoshida, Chie Tonohiro, Atsushi Kubota
  • Publication number: 20110259238
    Abstract: According to one embodiment, an aqueous pigment ink includes water, a pigment, and a water-soluble polymeric compound. The pigment is contained in the aqueous pigment ink in an amount of less than 5 wt %. The aqueous pigment ink has viscosities (mPa·s) measured at 25° C. using a cone-plate type viscometer and satisfying the following relationships: 0?(VB?VA)/VB<0.05 VC/VA?1.5 3 mPa·s?VA?15 mPa·s wherein VA represents a viscosity measured at a rotation speed of 50 rpm, VB represents a viscosity measured at a rotation speed of 2.5 rpm, and VC represents a viscosity measured at a rotation speed of 50 rpm after adding calcium chloride in an amount of 0.5 wt % of the aqueous pigment ink.
    Type: Application
    Filed: March 18, 2011
    Publication date: October 27, 2011
    Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBA
    Inventors: Takafumi Hara, Ryozo Akiyama, Maiko Yoshida, Chie Tonohiro, Atsushi Kubota
  • Patent number: 8003714
    Abstract: An ink comprising a pigment, a dispersant, a penetrating agent, water, a compound having two hydroxyl groups in the molecule, a compound having three hydroxyl groups in the molecule, and a compound having four or more hydroxyl groups in the molecule, the content of the pigment being in the range of from about 7% by weight to about 20% by weight; the content of the compound having two hydroxyl groups in the molecule being in the range of from about 1% by weight to about 10% by weight; the content of the compound having three hydroxyl groups in the molecule being in the range of from about 2% by weight to about 20% by weight; and the content of the compound having four or more hydroxyl groups in the molecule being in the range of from about 25% by weight to about 50% by weight.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: August 23, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Yoshiro Yamashita
  • Publication number: 20110187770
    Abstract: A water-based ink for ink jet recording, containing: a coloring agent; water; and a water-soluble organic solvent. The coloring agent contains a phosphate group-modified self-dispersing pigment. The water-based ink further contains at least one of a reducing sugar and a sugar alcohol and a calcium ion.
    Type: Application
    Filed: January 26, 2011
    Publication date: August 4, 2011
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Michiko AOYAMA, Narumi KOGA, Shunichi HIGASHIYAMA, Masashi TSUDA, Hiromitsu SAGO, Kazuma GOTO, Akihiko TANIGUCHI
  • Publication number: 20100330281
    Abstract: A surface treatment solution for a recording paper on which ink jet recording is performed with a water-based ink, the surface treatment solution includes calcium alginate which is contained by 0.008 wt % to 0.074 wt % in the surface treatment solution, sodium alginate which is contained by 0.013 wt % to 0.084 wt % in the surface treatment solution, a water-soluble organic solvent, and water.
    Type: Application
    Filed: March 22, 2010
    Publication date: December 30, 2010
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hideji FUKAYA, Ryuji KATO
  • Patent number: 7678187
    Abstract: The invention provides a composition comprising an aqueous solution of 0.1-20 wt. % of a poly(amine) and 0.1 to 50 wt. % of a carboxylated carbohydrate having an average molecular weight of at least 100,000 D and a degree of carboxyl substitution of at least 5%, which carboxylated carbohydrate has been obtained by subjecting a corresponding original carbohydrate to an oxidation treatment whereby carboxyl and aldehyde groups are obtained by oxidation of hydroxyl groups of the original carbohydrate, after which the oxidised carbohydrate so obtained is contacted with a reducing agent whereby at least part of the aldehyde groups that were obtained in the oxidation treatment are reduced to hydroxymethyl groups, whereby the carboxylated carbohydrate comprises at least part of the reducing agent and/or its reaction product(s), and wherein the carboxylated carbohydrate forms a complex with the poly(amine).
    Type: Grant
    Filed: February 14, 2005
    Date of Patent: March 16, 2010
    Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO
    Inventors: Arjen Boersma, Theodoor M. Slaghek, Jan J. de Vlieger
  • Patent number: 7494538
    Abstract: An ink set, provided with at least a magenta ink composition, a yellow ink composition and a cyan ink composition, wherein the magenta ink composition has an L* value of 60 or more and a b* value of ?17 or less when the CIE standard a* value as calculated from the visible absorption spectrum in an aqueous solution diluted 10,000-fold or less is 80.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: February 24, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Shuichi Koganehira, Hironori Sato, Akira Mizutani
  • Patent number: 7449056
    Abstract: An ink-jet recording ink comprising water, a colorant and a surfactant, wherein a content of the surfactant is 0.3 mass % or more based on the whole mass of the ink, and the ink further comprises a sucrose compound represented by the formula (i) wherein R1 to R8 are individually selected from the group consisting of hydrogen, alkyl groups and alkylene oxide groups, with the proviso that at least one of R1 to R8 is an alkylene oxide group, the total number of alkylene oxide units possessed by the alkylene oxide group in a molecule is 1 to 20, and the proportion of an ethylene oxide unit to the total number of the alkylene oxide units in the molecule is 20.0% or more.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: November 11, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryota Kato, Shoji Koike
  • Patent number: 7441976
    Abstract: A water-based ink composition for ballpoint pen, which comprises at least a colorant, water, a shear-thinning tackifier and a thickening inhibitor, wherein a ratio (x) of a viscosity after evaporation of 40 wt % of water from the total ink amount to an initial ink viscosity (as measured by EMD viscometer at 1 rpm and 20° C.) is 2 or less; and a ballpoint pen comprising the same.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: October 28, 2008
    Assignee: The Pilot Ink Co., Ltd.
    Inventors: Nobuyuki Kitaoka, Yoshiaki Ono
  • Publication number: 20080163791
    Abstract: A saccharide-alkyleneoxy derivative comprising a compound represented by the following formula (1): A?(EP)n?OH??(1) wherein A represents a skeleton of a saccharide selected from the group consisting of C3 to C32 aldoses, ketoses and sugar alcohols; EP represents an ethyleneoxy group and/or a propyleneoxy group; and n represents an average number of the repeating units. Also disclosed are a method for producing the saccharide alkyleneoxy derivative, and an ink containing the saccharide-alkyleneoxy derivative.
    Type: Application
    Filed: September 24, 2007
    Publication date: July 10, 2008
    Inventor: Masahiro YATAKE
  • Patent number: 7322767
    Abstract: A water-based ink composition for ballpoint pen which has a colorant, water, a water soluble organic solvent and, as a shear-thinning tackifier, a polysaccharide, wherein the polysaccharide exists in the ink as particles having an average particle size less than 5 ?m, and a water-based ballpoint pen using the composition.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: January 29, 2008
    Assignee: The Pilot Ink Co., Ltd.
    Inventor: Hideaki Asami
  • Patent number: 7314510
    Abstract: The present invention provides an ink jet liquid composition including chitosan and a non-volatile organic acid. The non-volatile organic acid preferably has two or more carboxyl groups and a cyclic structure other than an aromatic ring. Further, the invention provides an ink jet recording method of forming images on a recording medium surface by ejecting an ink and a liquid composition thereon so that the ink and the liquid are in contact with each other, wherein the ink contains a colorant, the liquid composition contains a component for coagulating the colorant, and the component for coagulating the colorant contains chitosan and a non-volatile organic acid.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: January 1, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Hiroyuki Ueki
  • Publication number: 20070245925
    Abstract: A no-mess water-based ink including a composition including water, an organic solvent, a coloring agent dissolved in the organic solvent, an emulsifier and a thickening agent for use in conjunction with a specially treated substrate containing a color developer.
    Type: Application
    Filed: August 3, 2006
    Publication date: October 25, 2007
    Inventors: Jie Li, Leena Vadaketh, Jacqueline Aseng
  • Publication number: 20070219291
    Abstract: An inkjet ink includes at least colorant particles, a water-soluble organic solvent, and water, wherein each of the colorant particles has a core particle and a coating layer formed around it or adsorbed particles on the surface thereof and the core particle contains a resin material having a glass transition temperature (Tg) of 75° C. or lower.
    Type: Application
    Filed: August 15, 2006
    Publication date: September 20, 2007
    Inventors: Takatsugu Doi, Ken Hashimoto
  • Patent number: 7255731
    Abstract: The subject of the present invention is the use of particular polysaccharides as admixtures for mineral materials, especially as admixtures for mineral binders. These polysaccharides have, characteristically: a weight-average molecular weight Mw of at least 500 g/mol and at most 9000 g/mol, especially between 700 and 7000 g/mol; and a degree of branching DB of at least 10%, especially between 10 and 40%. The invention also relates to the combined use, in mineral materials, including especially mineral binders, of these particular polysaccharides on the one hand and of certain other admixtures on the other hand, for example admixtures, of saccharidic or nonsaccharidic type, having a plasticizing, superplasticizing or other functionality.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: August 14, 2007
    Assignee: Roquette Freres
    Inventor: Léon Mentink
  • Patent number: 7199888
    Abstract: A method of improving black print quality in a color printer having at least one color ink and black ink includes determining a location on a substrate where a black pixel is to be printed, printing a droplet of color ink at the location, and printing a droplet of black ink with the color droplet. If the color printer includes cyan, magenta and yellow, then a droplet of cyan ink, magenta ink or yellow ink may be printed with the droplet of black ink. For images containing black at a plurality of locations, the cyan, magenta and yellow droplets may be equally distributed among the plurality of locations. Alternatively, the cyan, magenta and yellow droplets may be distributed in accordance with a digital halftone screen.
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: April 3, 2007
    Assignee: Xerox Corporation
    Inventors: Mark R. Parker, Meng Yao, Stephen M. Kroon
  • Patent number: 7195666
    Abstract: A self-dispersed pigment ink composition is provided which gives reliable printing performance and yields printed images that have excellent print quality and a dispersant which can realize the ink composition. New polyuronic acid derivatives, as a dispersant, according to the present invention characterized in that polyuronic acids are attached by reductively amination, through reducing termini of the polyuronic acids, to glyceryl poly(oxypropylene) triamine.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: March 27, 2007
    Assignee: Seiko Epson Corporation
    Inventor: William Marritt
  • Patent number: 7172652
    Abstract: The present invention is directed to carbon black granules containing a sorbitan triester. In addition, a process for the production of these carbon black granules is described, in which a powdered carbon black or beaded carbon black is beaded with a sorbitan triester. The carbon black granules can be used in polymer blends, lacquers, inks or pigments.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: February 6, 2007
    Assignee: Degussa AG
    Inventors: Heinz Zoch, Norbert Hornick, Alfons Karl, Silke Teike
  • Patent number: 7166153
    Abstract: An edible ink with a viscosity of about 2000 to 16000 cp at 25° C. Certain embodiments relate to applying the edible ink to a substrate using a lithographic printing process.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: January 23, 2007
    Assignee: DecoPac, Inc.
    Inventors: John Russell, Andrew Candler, Angela Wright
  • Patent number: 7037366
    Abstract: New aerogels are disclosed which comprise silica, at least one organic polymer having polar functional groups, and at least one metal ion. Also disclosed are methods for making such aerogels. The present invention further concerns printable objects comprising these aerogels, specifically when the print media are imaged by the absorption of liquid and the spatial localization of pigments or dyes.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 2, 2006
    Assignee: Brown University Research Foundation
    Inventors: William Risen, Shuang Ji, Xiangjun Hu, Ruiyun Zhang
  • Publication number: 20040259978
    Abstract: An ink jet recording ink is provided containing water, a pigment that is self-dispersible in water, a water-soluble organic solvent, and a nonionic polymer of which the amount is preferably in a range of about 5% by mass to about 200% by mass relative to the total mass of the pigments. The nonionic polymer is preferably selected from a group consisting of polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, poly N-vinyl acetamide, and the like. The absolute value of zeta potential of the ink is preferably in the range of about 5 mV to about 30 mV.
    Type: Application
    Filed: June 18, 2004
    Publication date: December 23, 2004
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Mihoko Tani, Toshitake Yui, Ken Hashimoto
  • Patent number: 6818047
    Abstract: In a ball pen which is formed to have an ink-consumption value per unit area of 0.64 to 1.6 mg/cm2, the water content is adjusted in the range from 30.0 to 80.0 wt %, the content of a volatilization-inhibiting substance in the range from 0.1 to 10.0 wt % and the content of a hardly-volatile water-soluble liquid medium in the range from 1.0 to 40.0 wt % in the ink for a ball pen in order to achieve both the quick-drying property of the ink transferred onto the paper surface and the non-drying property of the point of the pen-tip and further a good writing feeling.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: November 16, 2004
    Assignee: Mitsubishi Pencil Kabushikikaisha
    Inventors: Masaru Miyamoto, Shigeru Miyazaki, Youji Takeuchi
  • Patent number: 6790268
    Abstract: The present invention is drawn to ink-jet ink compositions, methods, and systems for reducing satellite spotting around a printed image. Specifically, an aqueous ink-jet ink composition exhibiting a reduction in aerosol formation during printing, comprises an effective amount of an ink vehicle; an effective amount of at least one ink colorant; and from 5 to 200 ppm of a high molecular weight polysaccharide.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: September 14, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Shirley Lee, Grant A. Webster, Joe R. Pietrzyk, Farzaneh Barmaki
  • Patent number: 6776830
    Abstract: It is an object of the present invention to provide a pigment dispersed aqueous ink composition for use in ink jet printing which gives reliable printing performance and yields rapidly drying printed images with levels of color bleed, which are equal to or better than those obtained from comparable dye based inks. According to the present invention, there is provided a pigment dispersed aqueous ink jet ink composition comprising water as the principal solvent, a water-soluble organic solvent, and a polysaccharide compound represented by the formula: wherein A represents a polyamine.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: August 17, 2004
    Assignee: Seiko Epson Corporation
    Inventor: William Marritt
  • Publication number: 20040147632
    Abstract: A water base erasable ink composition for use in marking pens which comprises 0.05-20% by weight of a colorant and 1-20% by weight of an oily material which is nonvolatile at normal temperatures (25° C.) and is dispersed in water, wherein the oily material has a viscosity of 5-40 mPa·s at 20° C. and is dispersed in water in the form of emulsion, and wherein the colorant is dispersed in the water with the aid of a polyvinyl alcohol resin as a dispersing agent which has a saponification degree of 70-85 mol % and of which aqueous solution of 4% concentration has a viscosity of 2-30 mPa·s at 20° C. in a weight ratio of the resin to the colorant of 0.5 to 5 and in an amount of 1 to 10% by weight based on the ink composition.
    Type: Application
    Filed: January 14, 2004
    Publication date: July 29, 2004
    Inventors: Keiko Nakamura, Hidetoshi Fukuo, Jiro Nakagawa
  • Publication number: 20040134380
    Abstract: An ink jet composition includes a liquid vehicle, a colorant and at least one alkyl saccharide surfactant having at least one sugar moiety head and at least one alkyl chain tail.
    Type: Application
    Filed: January 15, 2003
    Publication date: July 15, 2004
    Applicant: XEROX CORPORATION
    Inventor: Jin Wu
  • Patent number: 6730154
    Abstract: A polychromic ink composition depending on viewing angle comprises 0.5 to 40% by weight of cholesteric liquid crystal polymer particles whose maximum particle diameter is 1 to 200 &mgr;m, 1.0 to 30.0% by weight of binder resins, 0.05 to 20% by weight of pigments with a deep-colored coloring matter whose average particle diameter is 0.01 to 0.5 &mgr;m, 0.01 to 5.0% by weight of a shear-thinning property imparting agent, and water with respect to the total amount of the ink composition.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: May 4, 2004
    Assignee: Sakura Color Products Corporation
    Inventors: Hiroshi Inoue, Satoshi Maruyama, Norihiro Hirano, Hidetoshi Fukuo, Naoshi Murata, Shoko Matsumoto, Kaoru Matsumoto
  • Patent number: 6682588
    Abstract: An ink for ink-jet recording which comprises (a) a coloring material, (b) a liquid medium, and (c) an ammonium salt of an acid having a methyl or methylene group and a carboxylic group, or an ammonium aldonate, or an ammonium salt of citric acid, to alleviate kogation of the ink-jet head heater having an outermost protecting layer containing at least one of a metal and a metal oxide.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: January 27, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Shioya, Ryuji Katsuragi
  • Patent number: 6648953
    Abstract: The present invention provides an ink composition for an ink jet recording process, which exhibits excellent print quality with good water fastness and light fastness and without flying in deflected directions from the ink head or nozzle fill-in even after a prolonged ink jet printing. The ink comprises (1) a carbon black, (2) an organic pigment, (3) a dispersant incorporated in an aqueous medium and (4) a saccharide.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: November 18, 2003
    Assignee: Seiko Epson Corporation
    Inventors: Hideo Yamazaki, Michinari Tsukahara, Hiroto Nakamura, Hidehiko Komatsu
  • Patent number: 6645280
    Abstract: The present invention provides a jet ink composition suitable for printing watermarks on paper substrates. The jet ink composition comprises a solvent and a translucentizing agent. An example of a translucentizing agent is sucrose acetate isobutyrate. The present invention further provides a method of ink jet printing watermark on an object comprising projecting a stream of droplets of the ink composition and controlling the direction of the stream so that the droplets form the watermark on the object. The method of the present invention has the advantage that it provides high speed watermarking capability. The method provides a further advantage that it is economical in changing the design of watermarks. The method is versatile and allows changes in the design of watermarks to be incorporated readily.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: November 11, 2003
    Assignee: Videojet Technologies Inc.
    Inventors: Linfang Zhu, Christopher D. Peterson
  • Patent number: 6623553
    Abstract: An edible ink with a viscosity of about 2000 to about 16000 cp at 25° C.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: September 23, 2003
    Inventors: John Russell, Andrew Candler, Angela Wright
  • Patent number: 6616741
    Abstract: An aqueous metallic ink composition comprising an aluminum powder pigment, a colorant, a polysaccharide, water, a water-soluble solvent and a material selected from a polyvinyl pyrrolidone, a polyethylene oxide or a compound thereof.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: September 9, 2003
    Assignee: Sakura Color Products Corp.
    Inventors: Tomohiro Sawa, Yuki Yamamoto
  • Patent number: 6599352
    Abstract: A water based ink composition for a writing instrument comprising at least a colorant, water and a liquid medium, wherein reduced maltooligosaccharide and/or reduced isomaltooligosaccharide are added in a proportion of 0.5 to 20% by weight based on the total amount of the ink composition.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: July 29, 2003
    Assignee: Mitsubishi Pencil Kabushiki Kaisha
    Inventors: Masaru Miyamoto, Katsuhiko Shiraishi, Yoji Takeuchi, Tadashi Kamagata
  • Publication number: 20030079646
    Abstract: The present invention is drawn to ink-jet ink compositions, methods, and systems for reducing satellite spotting around a printed image. Specifically, an aqueous ink-jet ink composition exhibiting a reduction in aerosol formation during printing, comprises an effective amount of an ink vehicle; an effective amount of at least one ink colorant; and from 5 to 200 ppm of a high molecular weight polysaccharide.
    Type: Application
    Filed: October 24, 2001
    Publication date: May 1, 2003
    Inventors: Shirley Lee, Grant A. Webster, Joe R. Pietrzyk, Susan L. Pietrzyk, Farzaneh Barmaki
  • Patent number: 6544323
    Abstract: The present invention relates to an aqueous ink composition with metallic glittering, more particularly to an aqueous ink composition with metallic glittering having an excellent glittering appearance, three-dimensional effect, writing aptitude comprising a metal-coating resin component, colorant, water-soluble resin, water-soluble organic solvent, and water.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: April 8, 2003
    Assignee: Dang-A Pencil Co., Ltd.
    Inventor: Tung-Gul An