Specified Particle Size Or Coated Particle Containing Patents (Class 106/31.65)
  • Patent number: 10322975
    Abstract: The present invention provides a method for producing a dispersion of fine ceramic particles, the method comprising: adding fine ceramic particles having a mean particle size of less than 1 ?m to a dispersion medium selected from the group consisting of a lower alcohol and water; and dispersing the fine ceramic particles in the dispersion medium using a rotor-stator homogenizer. The present invention enables the production of a highly homogeneous and stable dispersion of a nanosized ceramic powder, which is prone to aggregation and the homogeneous dispersion of which is difficult to form, by conducting a simple, uncomplicated operation.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: June 18, 2019
    Assignee: KYOTO UNIVERSITY
    Inventors: Tatsuya Hinoki, Kazuya Shimoda
  • Patent number: 10308812
    Abstract: The invention provides a plurality of substantially same planar pigment flakes, each formed of one or more thin film layers. Each flake has a face surface and a flake border delimiting the face surface; the flake border undulates in the plane of the flake. The flakes have a pre-selected shape, may have a symbol or a grating thereon. A method of manufacturing of these flakes including the steps of: (a) providing a substrate having a plurality of one-flake regions and a plurality of depressions or protrusions disposed therebetween and not extending into the one-flake regions, (b) coating the substrate with a releasable coating, and (c) removing the releasable coating and breaking it into the flakes; wherein two adjacent of the one-flake regions are separated by at least three of the depressions or protrusions for facilitating the breaking of the releasable coating into the flakes.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: June 4, 2019
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Alberto Argoitia, Cornelis Jan Delst, Laurence Holden
  • Patent number: 10227494
    Abstract: The present invention relates to metallic luster pigments, to a process for production thereof and to the use of such metallic luster pigments.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 12, 2019
    Assignee: SCHLENK METALLIC PIGMENTS GMBH
    Inventors: Kaiman Shimizu, Fabian Piech, Adalbert Huber
  • Patent number: 10166198
    Abstract: A nanoparticle having a solid core comprising a biologically active substance, said core being enclosed by an inorganic coating, a method for preparing the nanoparticle, and the use of the nanoparticle in therapy. A kit comprising the nanoparticle and a pharmaceutical composition comprising the nanoparticle.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: January 1, 2019
    Assignee: Nanexa AB
    Inventors: Jan-Otto Carlsson, Anders Johansson, Marten Rooth
  • Patent number: 10077368
    Abstract: A non-Newtonian photo-curable ink composition that comprises a combination of metal oxide particles in an amount ranging from about 0.1 wt % to about 20 wt % based on the total weight of the ink; an organic solvent; a photo-initiator; and a polymerizable material wherein the ink composition has a first dynamic viscosity ranging from 25 cps to 10,000 cps at a first state and a second dynamic viscosity ranging from 1 cps to 50 cps at a second state. Also described herein is a method for making such non-Newtonian photo-curable ink composition and a method for producing printed images using such non-Newtonian photo-curable ink composition.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: September 18, 2018
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: James P. Shields, Raymond Adamic, Sundar Vasudevan
  • Patent number: 10059121
    Abstract: A pigment dispersion containing a metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 ?m, and the condition R50/Z>5 is satisfied.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: August 28, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Oyanagi, Keitaro Nakano
  • Patent number: 10059853
    Abstract: Inkjet printing is carried out on a substrate having a topmost layer comprising aqueous soluble multivalent metal cations and a hydrophilic polymeric binder. An aqueous inkjet ink composition is drawn from a main fluid supply as a continuous stream that is broken into both printing drops and non-printing drops, forming a white printed image on the substrate with the printing drops. The non-printing drops are collected and returned to the main fluid supply. The aqueous inkjet ink composition comprises particles of titanium dioxide in an amount of at least 4 to 15 weight %. The particles of titanium dioxide have a 95th percentile particle size of less than 200 nm, a 50th percentile particle size of less than 130 nm, and are dispersed using a dispersing polymer comprising acidic groups. The weight ratio of the particles of titanium dioxide to the dispersing polymer is 19:1 to 2:1.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: August 28, 2018
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Charles Leo Bauer, Tamara K. Jones
  • Patent number: 10053587
    Abstract: In a conductive film-forming composition including copper oxide particles, water and a dispersant selected from the group consisting of a water-soluble polymer and a surfactant, the copper oxide particles have a volume average secondary particle size of 20 to 240 nm, and the copper oxide particles are contained in an amount of 10 to 70 wt % with respect to a total weight of the conductive film-forming composition.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: August 21, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Misato Sasada, Yuuichi Hayata, Yushi Hongo, Toshihiro Kariya
  • Patent number: 10042278
    Abstract: Herein is disclosed a magenta liquid electrostatic ink composition comprising a carrier liquid; and ink particles comprising a resin, a magenta pigment and a black pigment, wherein the black pigment is present in the composition in an amount of 0.01 to 0.5 wt % by total solids of the composition.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: August 7, 2018
    Assignee: HP Indigo B.V.
    Inventors: Adi Vinegrad, Yaron Grinwald, Gil Bar-Haim, Mirta Perlman, Alina Grishman, Danny Feldman, Eyal Shelef
  • Patent number: 10035921
    Abstract: A water-based ink for inkjet recording contains a pigment, water, organic solvents, at least one compound selected from urea compounds, and a binder resin. The organic solvents include at least (1) a water-soluble organic solvent having a boiling point of from 100° C. to 200° C. inclusive and a vapor pressure at 20° C. of 0.5 hPa or more, (2) propylene glycol, and (3) glycerin, diglycerin, and/or a derivative thereof serving as an organic solvent. Preferably, the water-based ink further contains a polymer (A) serving as a pigment dispersant. The polymer (A) has an anionic group and has a solubility in water of 0.1 g/100 mL or more, a number average molecular weight within the range of 1,000 to 6,000, and an acid value within the range of 40 to 190 mg KOH/g.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 31, 2018
    Assignee: DIC CORPORATION
    Inventors: Maiko Kitade, Yukie Uemura, Toshihisa Kimura, Hisakazu Tanaka, Yasuo Oji, Nobuhiro Oe
  • Patent number: 10017654
    Abstract: Disclosed is an aqueous inkjet ink for a humidity-conditioning base material, the ink comprising water, a water-dispersible resin, a colorant, and at least one surfactant selected from among acetylene glycol-based surfactants and silicone-based surfactants.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: July 10, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Sayako Arai, Hirotaka Yamamoto, Ami Terakado, Shinji Tabuchi, Yoshihisa Morita
  • Patent number: 9988540
    Abstract: An aqueous particle-free inkjet ink composition has a pH of 7 to 9, and consists essentially of: (A) water-soluble dye colorants present in a total amount of 2-10 weight %, (B) a water-soluble polymer present in an amount of 1-4 weight %, and an aqueous medium consisting essentially of water. The water-soluble polymer has an acid number ?130 and a molecular weight of 5,000 to 20,000. It comprises: (a) 55-80 mol % of recurring units derived from ethylenically unsaturated polymerizable monomers selected from substituted or unsubstituted styrenes, (meth)acrylates, and combinations thereof, each (meth)acrylate comprising either a pendant phenyl group or an alkyl ester group having 12 to 20 carbon atoms; and (b) 20-35 mol % of recurring units comprising (meth)acrylic acid, all based on total water-soluble polymer recurring units. The one or more water-soluble dye colorants are chosen singly or collectively to provide a hue other than black.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: June 5, 2018
    Assignee: EASTMAN KODAK COMPANY
    Inventor: Wayne Lee Cook
  • Patent number: 9982139
    Abstract: A color metallic pigment according to the present invention contains at least a metallic pigment, an amorphous silicon oxide film layer that is formed on the surface of the metallic pigment, a metal oxide layer that is formed on the surface of the amorphous silicon oxide film layer and contains a metal oxide other than silicon oxide, and metal particles that are formed on the surface of the metal oxide layer, wherein the metal particles are so formed as to directly cover a part of the metal oxide layer.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: May 29, 2018
    Assignee: TOYO ALUMINIUM KABUSHIKI KAISHA
    Inventors: Yoshiki Hashizume, Taro Morimitsu, Takayuki Nakao
  • Patent number: 9963609
    Abstract: A method is disclosed of producing stable nanosized colloidal suspensions of particles with limited crystallinity loss, products thereof, use of the products and an apparatus for the method. In particular the present invention relates to a wet milling method with small beads wherein the size of the final particles in suspension are stabilized in the nanorange (D50<75 nm) and at the same time the particles substantially maintain the crystallinity.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: May 8, 2018
    Assignee: VALINGE PHOTOCATALYTIC AB
    Inventors: Steen Brummerstedt Iversen, Hans Rasmussen, Christian Ausig Christensen, Henrik Jensen, Theis Reenberg
  • Patent number: 9889074
    Abstract: Notch filter coatings for use in sunscreen applications are provided herein. An exemplary composition includes multiple zinc oxide particles suspended within a medium forming sunscreen composition; and a combination of multiple notch filter coating materials individually applied as a distinct layer to each of the multiple zinc oxide particles to create a multi-layered structure surrounding each of the multiple zinc oxide particles within the sunscreen composition, wherein the multi-layered structure: reflects light at a user-determined wavelength range based on the wavelength range at which each of the multiple notch filter coating materials reflects light; and allows wavelengths of light (i) within at least a portion of the ultraviolet spectrum and (ii) outside of the user-determined wavelength range to be absorbed by the multiple zinc oxide particles.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: February 13, 2018
    Assignee: International Business Machines Corporation
    Inventors: Talia S. Gershon, Ning Li, Devendra Sadana, Teodor K. Todorov
  • Patent number: 9869032
    Abstract: The present invention provides: an electrophotographic photosensitive member which reduces image defects due to ghosting not only under a normal temperature and normal humidity environment but also even under a low temperature and low humidity environment; and a novel phthalocyanine crystal. The electrophotographic photosensitive member of the present invention comprises a photosensitive layer which comprises a phthalocyanine crystal in which a N,N-dimethylformamide is contained. The content of the N,N-dimethylformamide is 0.1% by mass or more and 1.5% by mass or less based on the phthalocyanine crystal.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: January 16, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masataka Kawahara, Masato Tanaka, Jumpei Kuno, Tsutomu Nishida, Kaname Watariguchi
  • Patent number: 9752033
    Abstract: The present invention provides a process for producing a fine organic pigment having a very small primary particle size, and a fine organic pigment produced by the process; a process for producing a dispersion using the fine organic pigment, and a dispersion produced by the process; and a process for producing an ink using the dispersion. The present invention relates to [1] a process for producing a fine organic pigment, including step 1 of kneading a mixture prepared by blending a raw material organic pigment, a water-soluble inorganic salt, a water-soluble organic solvent and water with each other, the water being blended in an amount of not less than 0.6 part by mass and not more than 4.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: September 5, 2017
    Assignee: KAO CORPORATION
    Inventors: Takahiro Sato, Hironobu Fukuroi, Hirotaka Takeno
  • Patent number: 9732229
    Abstract: A diffractive pigment blend or composition is provided which includes a plurality of groups of all-dielectric diffractive pigment flakes. The pigment flakes of each group each include one or more dielectric layers for providing a background color, at least one of which includes a diffractive structure for providing a diffractive effect. Each group of pigment flakes provides a different diffractive effect, and the diffractive pigment blend or composition provides a combined diffractive effect that is a combination of the different diffractive effects. The combined diffractive effect may be a neutral white diffractive effect or may include a reversal in color travel.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: August 15, 2017
    Assignee: Viavi Solutions, Inc.
    Inventors: Cornelis Jan Delst, Alberto Argoitia
  • Patent number: 9663669
    Abstract: An aqueous particle-free inkjet ink composition has a pH of 7 to 9, and consists essentially of: (A) a water-soluble dye colorant present in an amount of 2-10 weight %, (B) a water-soluble polymer present in an amount of 1-4 weight %, and an aqueous medium consisting essentially of water. The water-soluble polymer has an acid number or at least 130 and a molecular weight of 5,000 to 20,000. It comprises: (a) 55-80 mol % of recurring units derived from one or more ethylenically unsaturated polymerizable monomers selected from the group consisting of substituted or unsubstituted styrenes, (meth)acrylates, and combinations thereof, each (meth)acrylate comprising either a pendant phenyl group or an alkyl ester group having 12 to 20 carbon atoms; and (b) 20-35 mol % of recurring units comprising (meth)acrylic acid, all based on total water-soluble polymer recurring units.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 30, 2017
    Assignee: EASTMAN KODAK COMPANY
    Inventor: Wayne Lee Cook
  • Patent number: 9550900
    Abstract: A pigment dispersion containing metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 ?m, and the condition R50/Z>5 is satisfied.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: January 24, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Takashi Oyanagi, Keitaro Nakano
  • Patent number: 9512328
    Abstract: An ink jet printing system comprises an ink reservoir, an ink passageway, an inkjet nozzle, and a plurality of magnetic elements that are located adjacent at least one of the ink reservoir and the ink passageway. The at least one of the ink reservoir and the ink passageway further includes having micro-magnetic particles located therein. The magnetic particles may have a particle size from about 500 nm to about 50 microns. The ink reservoir and ink passageway further contain ink composition comprising pigment colorant. The plurality of magnetic elements provide a magnetic field to be applied to the micro-magnetic particles which results in a chaotic motion of the magnetic particles in the ink mixture.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: December 6, 2016
    Assignee: XEROX CORPORATION
    Inventors: Yu Liu, Yiliang Wu
  • Patent number: 9464201
    Abstract: A non-aqueous ink jet ink composition according to an embodiment is stored in an ink storage body, in which a solvent contained in an ink composition is configured with an organic solvent, and a dissolved oxygen concentration in the ink composition is in a range of 30% to 80% of a saturated dissolved oxygen concentration in room temperature.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: October 11, 2016
    Assignee: Seiko Epson Corporation
    Inventor: Yoshio Miyazawa
  • Patent number: 9441139
    Abstract: Provided are silica-based fine particle dispersion sols, processes for producing the sols, coating compositions containing the dispersion sol, curable coating films obtained from the coating composition, and substrates having the coating film. The process including (1) mixing an aqueous aluminate solution to an alkaline silica sol which contains water-dispersible silica fine particles in a given ratio; (2) heating the mixture liquid obtained in step (1) to 60 to 200° C. and stirring the mixture liquid at the temperature for 0.5 to 20 hours; and (3) contacting the mixture liquid obtained in step (2) with a cation exchange resin to remove by ion exchange alkali metal ions contained in the mixture liquid and thereby controlling the pH of the mixture liquid to be in the range of 3.0 to 6.0.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: September 13, 2016
    Assignee: JGC CATALYSTS AND CHEMICALS LTD.
    Inventors: Yoichi Ishihara, Hiroyasu Nishida
  • Patent number: 9371464
    Abstract: An aqueous ink composition including water; a co-solvent; an encapsulated resinous pigment; a polymer latex; and a low molecular weight humectant solute; wherein the total solids content of the aqueous ink is from about 2 to about 25 percent by weight based on the total weight of the aqueous ink composition.
    Type: Grant
    Filed: June 14, 2014
    Date of Patent: June 21, 2016
    Assignee: Xerox Corporation
    Inventors: Marcel P. Breton, Valerie M. Farrugia, James D. Mayo, Biby Esther Abraham, Gabriel Iftime, Adela Goredema, Jenny Eliyahu
  • Patent number: 9284465
    Abstract: An ink composition for ink jet recording according to the invention contains water, a coloring material, and three or more kinds of acetylene glycol-based surfactant selected from acetylene glycol represented by the following general formula (1) and an ethylene oxide adduct of acetylene glycol represented by the following general formula (2), and a total content of the acetylene glycol-based surfactant is 0.1% by mass to 3% by mass with respect to the total mass of the ink composition. (In the general formula (1), each of R1 and R2 independently represents an alkyl group having 1 to 5 carbon atoms.) (In the general formula (2), each of R3 and R4 independently represents an alkyl group having 1 to 5 carbon atoms, each of m and n independently represents an integer of 0.5 to 25, and m+n is 1 to 40).
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: March 15, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Soichi Yamazaki, Yoshitaka Miyajima
  • Patent number: 9267048
    Abstract: Methods to control electrical resistivity in filler-polymer compositions are described using dual phase fillers. Polymer compositions containing the dual phase fillers are further described.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: February 23, 2016
    Assignee: Cabot Corporation
    Inventors: Andriy Korchev, Jeremy Huffman, Agathagelos Kyrlidis, Pavel Kossyrev, Eugene Step
  • Patent number: 9238743
    Abstract: An ink contains a pigment dispersed with polymer, a surfactant, a water-soluble organic solvent, and water. The mass ratio of a content of the pigment to a content of the polymer in the ink is more than 3. The surfactant includes a fluorinated surfactant which is represented by Formula (1) and which has an HLB of 11 or less as determined by a Griffin method. The water-soluble organic solvent includes at least one selected from specific Group A. The total content of the water-soluble organic solvents of the Group-A in the ink is larger than the total content of water-soluble organic solvents other than the water-soluble organic solvents of Group A in the ink.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 19, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Taya, Masahiro Terada, Hidetaka Kawamura, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani
  • Patent number: 9181443
    Abstract: A resin for aqueous pigment dispersion that allows the production of an aqueous pigment dispersion for ink jet recording that contains only a few coarse particles and has excellent ejection stability, an aqueous pigment dispersion containing the resin for aqueous pigment dispersion, an ink jet recording ink, and a method for producing an aqueous pigment dispersion. A resin for aqueous pigment dispersion produced by copolymerization of a composition that contains (a) one or two or more compounds selected from the group consisting of alkenylsuccinic acids, alkenylsuccinic anhydrides, alkylsuccinic acids, and alkylsuccinic anhydrides, and (b) a styrene monomer, wherein the (a) component constitutes 5% by mass or more and the (b) component constitutes 30% by mass or more of the total amount of all the monomer component(s) and the (a) component of the composition.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: November 10, 2015
    Assignee: DIC CORPORATION
    Inventors: Hiroyuki Buei, Yoshinosuke Shimamura, Shinichi Okada, Kenji Nasu, Takashi Yoshinari
  • Patent number: 9133358
    Abstract: An inkjet ink includes a pigment incorporated in an aqueous ink vehicle. The pigment includes metal oxide and/or mixed metal oxide particles and a plurality of reacted dispersant molecules attached to the outer surfaces of the particles to form a coating on the outer surfaces. The reacted dispersant molecules are attached to the metal oxide and/or mixed metal oxide particle outer surfaces through a silanol linking group of the reacted dispersant molecules. The coating is present in an amount ranging from about 10 wt % to about 50 wt % with respect to the wt % of the metal oxide and/or mixed metal oxide particles.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: September 15, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Cory J. Ruud, Vladimir Jakubek
  • Patent number: 9120931
    Abstract: Water-based ink having characteristics of a metal nanoparcile or metal ion and substantially reduced aggregation is provided. The water-based ink includes a metal compound in which an organic ligand is coordinated to a metal nanoparticle and/or a metal ion, and a coloring pigment and/or a coloring dye.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: September 1, 2015
    Assignee: MIMAKI ENGINERRING CO., LTD.
    Inventor: Isao Tabayashi
  • Patent number: 9017468
    Abstract: A colorant dispersion for an ink includes a liquid medium and metal oxide particles dispersed in the liquid medium. The metal oxide particles include a mixture of i) metal oxide particle cores having an organic ligand interacted with respective surfaces thereof, ii) metal oxide particle cores having the organic ligand chemically bonded to respective surfaces thereof, and iii) products of a reaction between metal ions on respective surfaces of metal oxide particle cores and the organic ligand. The organic ligand is chosen from an organic ligand having a phenol group, an organic ligand having a carboxylate group, an organic ligand having an amine group, or combinations thereof. The metal oxide particles exhibit a color that is different from a natural color of the metal oxide particle core.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: April 28, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Raymond Adamic, Vladek Kasperchik, Vladimir Jakubek
  • Publication number: 20150097893
    Abstract: Provided is a black ink composition containing a pigment, wherein the value calculated from the average particle diameter and the particle size distribution width of the pigment and the ink viscosity is regulated within a certain range, and the number of coarse particles contained in the ink composition is regulated to a certain value or less. The ink composition is excellent in ink storage stability and can give an image realized with good balance between color development, in particular, in high-speed printing and inhibition of a time-dependent change in printing density due to pigment sedimentation.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Applicant: Seiko Epson Corporation
    Inventors: Chie Maruyama, Minharu Kanaya
  • Publication number: 20150096466
    Abstract: Disclosed is an aqueous pigment dispersion including water and a base metal pigment, in which the base metal pigment is a base metal pigment which is surface-treated with a fluorine-based compound, and when performing an X-ray Photoelectron Spectroscopy analysis of a base metal pigment surface, a concentration of a fluorine element is 21 atm % to 35 atm %.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 9, 2015
    Inventors: Atsushi DENDA, Naoki KOIKE
  • Patent number: 8992675
    Abstract: An ink composition contains a coloring material, 1,2-pentanediol with a content in the range of more than 0% by mass to less than 20% by mass, and 1,2-hexanediol.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: March 31, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Hidehiko Komatsu
  • Publication number: 20150077489
    Abstract: A pigment dispersion containing metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 ?m, and the condition R50/Z>5 is satisfied.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: Takeshi OYANAGI, Keitaro NAKANO
  • Patent number: 8979989
    Abstract: An ink for inkjet recording including a pigment, a penetrating agent and water, wherein the pigment includes: an ozone-oxidized carbon black, including carbon black oxidized by ozone and having a volatile matter content of the carbon black of 10% by mass to 20% by mass and a BET specific surface area of 90 m2/g to 150 m2/g; and a resin-coated carbon black, including: carbon black; and a resin present on a surface of the carbon black.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Minoru Hakiri, Mitsuru Naruse, Masayasu Nonogaki
  • Publication number: 20150053112
    Abstract: An ink jet printing system comprises an ink reservoir, an ink passageway, an inkjet nozzle, and a plurality of magnetic elements that are located adjacent at least one of the ink reservoir and the ink passageway. The at least one of the ink reservoir and the ink passageway further includes having micro-magnetic particles located therein. The magnetic particles may have a particle size from about 500 nm to about 50 microns. The ink reservoir and ink passageway further contain ink composition comprising pigment colorant. The plurality of magnetic elements provide a magnetic field to be applied to the micro-magnetic particles which results in a chaotic motion of the magnetic particles in the ink mixture.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: XEROX CORPORATION
    Inventors: YU LIU, YILIANG WU
  • Patent number: 8952078
    Abstract: This invention relates to a printing ink and in particular to an ink for ink-jet printing which is cured by irradiation. The ink comprises at least one radiation-curable monomer; at least one passive thermoplastic resin; at least one radical photoinitiator; and at least one colouring agent; wherein the ink has a viscosity of less than 100 mPas at 25° C., and wherein the at least one passive resin is present at 2 to 15 wt % based on the total weight of the ink and has a molecular weight of 1,500 to 70,000.
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: February 10, 2015
    Assignee: Sericol Limited
    Inventor: Nigel Paul Gould
  • Publication number: 20150035270
    Abstract: The present invention relates to aluminium flakes having a thickness between 7 and 9 nm, coating compositions containing them and the use of the coating compositions for forming (security) products. When the compositions of the present invention are used in coating a hologram the obtained products show an extremely bright OVD image and extremely strong rainbow effect, high purity and contrast.
    Type: Application
    Filed: October 16, 2014
    Publication date: February 5, 2015
    Applicant: BASF SE
    Inventors: Geoff Ian Ormerod, Michelle Richert, Michael Milde, Gregoire Folly
  • Patent number: 8945294
    Abstract: An ink composition having organic pigment particles, a hydrosoluble solvent; a dispersing agent, and water, wherein each of the organic pigment particles has a circularity of 2 nm or less, which is defined as a difference between radii of concentric circumscribing and inscribed circles of a contour of an image of each of the organic pigment particles taken by a transmission electron microscope when a gap between the concentric circumscribing circle and the inscribed circle is least, wherein the inscribed circle has a diameter of from 5 nm to less than 50 nm.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 3, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihiko Matsuyama, Hiroshi Gotou
  • Patent number: 8940088
    Abstract: In an advantage of embodiments of the invention, there is provided an aqueous ink composition at least containing water, silver particles, and a humectant, and the humectant is at least one member selected from glycerols, glycols, and saccharide.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: January 27, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Shiki Hirata, Takayoshi Kagata, Tsuyoshi Sano
  • Patent number: 8940823
    Abstract: According to a water-based composition characterized by containing a colorant, water, a wetting agent, an amine compound, a hydroxyl group-containing organic solvent and a urethane resin having a polycarbonate group, there is provided a water-based coating composition being capable of easily controlling the gloss of a coating film applied on an object to be coated, having good storage stability, and being excellent in wetting properties to an object to be coated and continuous discharge stability without causing nozzle clogging.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 27, 2015
    Assignee: Dai Nippon Toryo Co., Ltd.
    Inventors: Akira Iwasawa, Takeshi Fujimoto, Yasuhiro Kawai, Seiji Hamanaka
  • Publication number: 20150015638
    Abstract: The current document discloses an inkjet ink that is characterized by exceptionally low sedimentation rate of glass frit and pigment particles. Practically, the ink reversibly gels upon extended standing, thus preventing sedimentation entirely.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Applicant: DIP-TECH LTD.
    Inventors: Andy Shipway, Pazit Bar-Yossef
  • Patent number: 8926746
    Abstract: Flaky particles of the present invention have a particle size distribution in which a value of D90/D10 is at least 2.0 but not more than 3.0, a value of D10 is at least 4.7 ?m but not more than 25 ?m, and a maximum particle diameter is 90 ?m or less, where D10 is defined as a particle diameter at which a cumulative volume of particles reaches 10% when counted from the smaller side, and D90 is defined as a particle diameter at which a cumulative volume of particles reaches 90% when counted from the smaller side. A luster pigment of the present invention contains flaky particles and at least one selected from a metallic layer and a metallic oxide layer that are formed on at least a part of the surface of each of the flaky particles. The luster pigment has a particle size distribution in which a value of D90/D10 is at least 2.0 but not more than 3.0, a value of D10 is at least 4.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: January 6, 2015
    Assignee: Nippon Sheet Glass Company, Limited
    Inventor: Takashi Wakamiya
  • Publication number: 20140354740
    Abstract: A white inkjet ink includes a liquid ink vehicle, a first inorganic pigment with a refractive index greater than 1.60 having an average particle size A larger than 200 nm, and a second inorganic pigment having an average particle size B between 40 nm and 90 nm; wherein the number of particles per mm3 NAB complies with the relation: NAB=?{square root over (NA×NB)}?7,500 particles/mm3 with NA representing the number of particles per mm3 having a particle size in the range of A?20 nm to A+20 nm, NB representing the number of particles per mm3 having a particle size in the range of B?20 nm to B+20 nm, the average particle size A is measured by transmission electron microscopy at a 13,500× magnification, and the average particle size B is measured by transmission electron microscopy at a 58,000× magnification.
    Type: Application
    Filed: November 20, 2012
    Publication date: December 4, 2014
    Applicant: AGFA GRAPHICS NV
    Inventors: Stefaan Smet, Xavier Andre
  • Publication number: 20140352573
    Abstract: An inkjet ink includes a pigment incorporated in an aqueous ink vehicle. The pigment includes metal oxide and/or mixed metal oxide particles and a plurality of reacted dispersant molecules attached to the outer surfaces of the particles to form a coating on the outer surfaces. The reacted dispersant molecules are attached to the metal oxide and/or mixed metal oxide particle outer surfaces through a silanol linking group of the reacted dispersant molecules. The coating is present in an amount ranging from about 10 wt % to about 50 wt % with respect to the wt % of the metal oxide and/or mixed metal oxide particles.
    Type: Application
    Filed: April 24, 2012
    Publication date: December 4, 2014
    Inventors: Vladek Kasperchik, Cory J. Ruud, Vladimir Jakubek
  • Patent number: 8883049
    Abstract: A method is provided for making thermochromic pigments in microcapsules having unusually small particle sizes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 11, 2014
    Assignee: Chromatic Technologies, Inc.
    Inventors: Terrill Scott Clayton, Timothy J. Owen, Lyle Small
  • Publication number: 20140305337
    Abstract: The composite pigment includes a pigment and a zinc oxide particle adhering to a surface of the pigment, and a recording liquid containing the composite pigment. Also, the composite pigment includes a polymer-coated pigment (D) and a zinc oxide particle adhering to a surface of the polymer-coated pigment. The polymer-coated pigment (D) includes a pigment (A) and a (co)polymer obtained either by mixing a (co)polymer (B) of a polymerizable unsaturated monomer with at least one polymerizable unsaturated monomer (C) that is soluble in a non-aqueous solvent and becomes either insoluble or slightly soluble after polymerization, or by copolymerizing a (co)polymer (B) of a polymerizable unsaturated monomer with at least one polymerizable unsaturated monomer (C) that is soluble in a non-aqueous solvent and becomes either insoluble or slightly soluble after polymerization, the (co)polymer being disposed on a surface of the pigment (A).
    Type: Application
    Filed: September 6, 2012
    Publication date: October 16, 2014
    Applicant: DIC CORPORATION
    Inventors: Yukie Suwa, Hiroshi Kinoshita
  • Patent number: 8859061
    Abstract: The present disclosure is drawn to an ink sets, printed articles, and related methods. The ink set can comprise a pre-treatment ink and a reflective ink. The pre-treatment ink can comprise a first liquid vehicle and inorganic pigment particles having an average particle size ranging from 20 nm to 300 nm and a refractive index of less than 2. The reflective ink can comprise a second liquid vehicle and metal oxide particles having an average particle size from 3 nm to 180 nm, wherein the average particle size of the metal oxide particles is smaller than the average particle size of the inorganic pigment particles. The reflective ink is formulated to have a metallic luster when overprinted on pre-treatment ink.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: October 14, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Pavel Kornilovich, Xiaoqi Zhou
  • Publication number: 20140287205
    Abstract: A phase change ink composition including an amorphous compound; a crystalline compound; an optional synergist; an optional dispersant; and a white colorant having a volume average particle size of from about 25 nanometers to less than 200 nanometers.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 25, 2014
    Applicant: Xerox Corporation
    Inventors: Naveen Chopra, Srinivasa Rangaraj Deshiikan, Daryl W. Vanbesien, Gabriel Iftime, Daniel Mark Platt