Patents Examined by Rut Patel
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Patent number: 8939568Abstract: Ink compositions and method of making the same are disclosed. A disclosed example ink composition includes a liquid vehicle, a colorant system and polyurethane vinyl hybrid latexes. Also disclosed is a method of using such ink composition containing polyurethane vinyl hybrid latexes.Type: GrantFiled: April 14, 2010Date of Patent: January 27, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Savka Ilieva Stoeva, Sergiy Peleshanko, Mark L. Choy, Gregg A. Lane
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Patent number: 8939569Abstract: An inkjet ink includes a non-polar carrier, a colorant dispersed in the non-polar carrier, a dispersant, and non-swellable latex particles of a cross-linked polymer dispersed in the non-polar carrier. The colorant is chosen from a pigment, a dye, or a combination of a pigment and a dye. The cross-linked polymer consists of: an acrylic monomer having a molecular weight less than 1000, a vinylic monomer having a molecular weight of less than 1000, or combinations thereof.Type: GrantFiled: October 4, 2012Date of Patent: January 27, 2015Assignee: Hewlett-Packard Development Company, L.P.Inventors: Hou T. Ng, Sivapackia Ganapathiappan, Howard S. Tom
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Patent number: 8926082Abstract: An optically polymerizable inkjet ink including an optically polymerizable monomer having a Stimulation Index (SI) of less than 3 in a skin sensitization test as measured by Local Lymph Node Assay (LLNA), a molecule cleavage type optical polymerization initiator, a hydrogen-extracting type optical polymerization initiator, and an amine compound serving as a polymerization accelerator.Type: GrantFiled: April 10, 2012Date of Patent: January 6, 2015Assignee: Ricoh Company, Ltd.Inventor: Takao Hiraoka
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Patent number: 8926078Abstract: An ink containing a plurality of coloring materials having different hues, wherein the bronze value B, which is calculated from tristimulus values of reflected light, of illumination in the direction of an angle of 45 degrees to a normal to the image, in the direction of specular reflection and tristimulus values of illumination light under the same condition of the illumination by using Formula 1, with respect to a predetermined recorded image recorded by the above-described ink is 2.0 or less.Type: GrantFiled: January 27, 2011Date of Patent: January 6, 2015Assignee: Canon Kabushiki KaishaInventors: Hiromitsu Kishi, Fumiaki Fujioka, Hirofumi Ichinose, Rie Takekoshi, Takumi Kaneko, Yumi Kamimura, Kazuki Narumi, Akihiro Kakinuma
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Patent number: 8919945Abstract: An inkjet ink including water, a pigment, a polymer, and a hydrazine compound. The polymer does not include an anionic unit and includes a first unit having a carbonyl group capable of reacting with a hydrazino group, and a second unit having at least one of an amino group, a dimethylamino group, and a diethylamino group. The content of the first unit is from 40% to 90% by weight based on the weight of the polymer, and the inkjet ink has a pH of not less than 9.Type: GrantFiled: March 23, 2012Date of Patent: December 30, 2014Assignee: Ricoh Company, Ltd.Inventors: Mitsuru Naruse, Minoru Hakiri, Naoya Morohoshi
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Patent number: 8894198Abstract: An apparatus for controlling application of a substance to a substrate involves the use of a gating agent that blocks the substance from or attracts the substance to the substrate. The apparatus may utilize ink jet technology to apply the gating agent directly to the substrate or to an intermediate surface. The gating agent includes a nonionic surfactant, and water. The gating agent does not contain a discernable amount of dye, pigment or other colorant agent.Type: GrantFiled: December 4, 2012Date of Patent: November 25, 2014Assignee: R.R. Donnelley & Sons CompanyInventors: Kevin J. Hook, Theodore F. Cyman, Jr., Lawrence Pilon, Jeffrey Zaloom
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Patent number: 8888268Abstract: A printing method is provided, wherein the printing method including: printing an ink, having a total surface free energy ? calculated from the Kaelble-Uy theoretical formula of 25 to 30 mN/m, and a dispersive component ratio ?dr represented by a formula (1) shown below of 0.55 to 0.75, onto a recording medium, and transporting the recording medium using a transport member that opposes at least a printed surface of the printed recording medium, wherein the transport member has a total surface free energy ? calculated from the Kaelble-Uy theoretical formula of 20 mN/m or less, and a dispersive component ratio ?dr represented by the formula (1) shown below of 0.75 to 1.00: ?dr=?d/? (1), wherein ?dr represents the dispersive component ratio, ?d represents a surface free energy of as dispersive component, and ? represents the total surface free energy.Type: GrantFiled: August 17, 2012Date of Patent: November 18, 2014Assignee: Riso Kagaku CorporationInventors: Satoshi Aoki, Yoshifumi Watanabe
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Patent number: 8857968Abstract: An object of the present invention is to provide an ink composition which has excellent storage stability and has good curing sensitivity regardless of the type of a light source for irradiation, and an ink container. Another object of the present invention is to provide an ink jet recording method which provides a cured image having excellent image gloss even with an LED light source. The ink composition comprises: a radically polymerizable compound; a radical polymerization initiator; and a colorant, and having a dissolved oxygen content of 9 mg/L or more. The ink container, having a gas-impermeable structure and encapsulates the ink composition. The ink jet recording method comprises: a degassing step of reducing a dissolved oxygen between the ink container that stores the ink composition and ink-discharging nozzles; and a discharging step of discharging the degassed ink composition from the nozzles.Type: GrantFiled: May 29, 2012Date of Patent: October 14, 2014Assignee: FUJIFILM CorporationInventors: Yusuke Fujii, Kyohei Mochizuki
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Patent number: 8857962Abstract: An image forming method of the present invention including applying a pretreatment liquid to a recording medium, and discharging an inkjet recording ink dropwise according to an image signal to form an image on the recording medium on which the pretreatment liquid has been applied, wherein the recording medium is regular paper which has no coat layer, the pretreatment liquid contains a cationic polymer compound, a surfactant A, water and a water-soluble organic acid, and the inkjet recording ink contains a water-dispersible colorant, a water-soluble organic solvent, a surfactant B, a penetrating agent and water, and wherein the pretreatment liquid has a static surface tension of 20 mN/m to 30 mN/m.Type: GrantFiled: January 16, 2009Date of Patent: October 14, 2014Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Goto, Hisashi Habashi, Kiyofumi Nagai
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Patent number: 8851648Abstract: Exemplary embodiments provide a phase change ink composition including at least a first semi-crystalline material having a high amorphous content; and at least a second semi-crystalline material having a high crystalline content, such that the phase change ink has a viscosity ranging from about 0.1 cps to about 15 cps at a temperature ranging from about 60° C. to about 145° C. and the phase change ink composition has excellent robustness when forming images or printing on a printing substrate.Type: GrantFiled: September 18, 2012Date of Patent: October 7, 2014Assignee: Xerox CorporationInventors: Stephan V. Drappel, Jeffrey H. Banning, Peter G. Odell, Paul J. McConville, Jennifer Rea
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Patent number: 8814335Abstract: An inkjet recording method characterized by adhering a receiving solution (A) to at least areas on a recording medium (R) which are to be printed with an inkjet ink (I) or the whole surface of the medium (R) which is to be printed, said receiving solution (A) being a solution obtained by dissolving (inclusive of dispersing) one or more metal salts (S) selected from among at least divalent, calcium salts, magnesium salts, nickel salts, aluminum salts, boron salts, and zinc salts and one or more resins (B) having hydrophilic groups in an aqueous solvent in such amounts that the concentrations of the metal salts (S) and the resins (B) fall within the range of 0.005 to 2.0 mol/l and within the range of 0.5 to 20 mass % respectively, and then applying the inkjet ink (1) to areas where the metal salts are present in an adhered state to carry out printing.Type: GrantFiled: March 27, 2012Date of Patent: August 26, 2014Assignee: DNP Fine Chemicals Co., Ltd.Inventors: Masaki Inumaru, Takao Otomaru, Yukio Sugita, Mitsuyoshi Tamura, Fumie Yamazaki, Naoki Shiraishi, Yoshiki Nozaka
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Patent number: 8814346Abstract: A multi-phase system for creating a metallic effect on a substrate, including applying to the substrate a first ink jet ink including a dispersion of reflective metallic particles in a suitable carrier system, to form a reflective coating layer; and applying a second ink jet ink over the reflective coating layer to form a protective coating layer. Optionally, an undercoat layer is printed on the substrate prior to applying the first ink jet ink. The second ink jet includes at least one crosslinkable polymer or is otherwise energy curable. The second ink jet ink optionally imparts a color to the metallic image.Type: GrantFiled: April 29, 2013Date of Patent: August 26, 2014Assignee: Electronics for Imaging, Inc.Inventors: Paul A. Edwards, Sandra Zinke, Joshua Samuel, Matthew Tennis
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Patent number: 8807734Abstract: A combination of: a) an inkjet print head having a nozzle density of at least 600 dpi and nozzles with an outer nozzle diameter D smaller than 25?m; and b) a UV curable inkjet composition containing 0 to 10 wt % of one or more monofunctional monomers and at least A wt % of 2-(2-vinyloxyethoxy)ethyl acrylate, wherein both wt % are based on the total weight of the UV curable inkjet composition; and wherein A is defined by the formula 100 wt %?D×3.0 wt %/?m?A?100 wt %?D×1.0 wt %/?m.Type: GrantFiled: September 22, 2010Date of Patent: August 19, 2014Assignee: Agfa Graphics NVInventors: Geert Van Dyck, David Tilemans
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Patent number: 8801166Abstract: A water-based ink for ink-jet recording includes a self-dispersible pigment modified by phosphate group; water; a water-soluble organic solvent; a N-hydroxy cyclic imide compound; and at least one selected from the group consisting of boric acids, a chelate agent, a reducing sugar and a sugar alcohol.Type: GrantFiled: August 21, 2012Date of Patent: August 12, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Hideji Fukaya, Taro Nagano
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Patent number: 8801167Abstract: An inkjet recording apparatus including an ink; and an ink discharging head configured to discharge the ink, wherein the ink discharging head is provided with a nozzle having a silicone-containing water-repellent film on a surface thereof on which the ink contacts, wherein the ink contains a colorant; water; and a water soluble organic solvent, wherein the colorant contains a carbon black partially coated with a resin, and wherein the ink meets the following expressions (1) and (2): 1.0×104<N×R/100<1.0×106??(1) 20.0<R?100.0??(2) where R (% by mass) denotes a rate of the mass of the carbon black partially coated with a resin relative to the mass of the colorant, and N denotes the number of coarse particles having a particle diameter of 0.5 ?m or more per 5 ?L of the ink where the number thereof is determined with a number counting method.Type: GrantFiled: September 5, 2012Date of Patent: August 12, 2014Assignee: Ricoh Company, Ltd.Inventors: Keita Katoh, Ichiroh Fujii, Masaki Kudo, Tomohiro Nakagawa, Akihiko Gotoh, Koji Katsuragi
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Patent number: 8794755Abstract: A printed matter production process including ejecting droplets of an actinic ray curable inkjet ink in a heated state through a head to supply the droplets onto a recording medium, thereby forming an image, the actinic ray curable inkjet ink including a polymerizable compound, a photopolymerization initiator and a gelling agent, having a viscosity of from 60 to 200 mPasecond at 25° C. and at a shear rate of 1000/second and showing a phase transition at a temperature of not lower than 25° C., characterized in that the actinic ray curable inkjet ink includes a bifunctional polymerizable compound with a molecular weight of not lower than 400 and with a viscosity at 25° C. of not more than 100 mPasecond in an amount of not less than 75 % by mass of the total amount of the polymerizable compound.Type: GrantFiled: March 9, 2011Date of Patent: August 5, 2014Assignee: Konica Minolta Holdings, Inc.Inventors: Hirotaka Iijima, Toshiyuki Takabayashi, Akio Maeda
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Patent number: 8794751Abstract: An ink jet recording device is provided which includes an ink jet head which has a nozzle surface where a plurality of nozzle opening ends are arranged and which ejects water-based ink from the nozzles to a recording medium and a wiping device that executes a wiping operation where the nozzle surface and a wiping member are brought into contact and the nozzle surface is wiped, where oleic acid and a dispersant for dispersing the oleic acid into water by emulsifying the oleic acid are added to the water-based ink.Type: GrantFiled: March 25, 2011Date of Patent: August 5, 2014Assignee: Seiko Epson CorporationInventors: Soichi Yamazaki, Ayako Nishiki
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Patent number: 8783842Abstract: The present disclosure provides a method of inkjet printing on non-porous media including inkjet printing a fixer fluid on the non-porous media and inkjet printing an ink onto the non-porous media, where the printing of the ink is within 125 milliseconds of the printing of the fixer fluid. Thus, the ink is printed to contact the fixer fluid within 125 milliseconds of each being printed. In one example, the fixer fluid can include a liquid vehicle including water and co-solvent having a boiling point from 160° C. to 250° C., a surfactant, and a cationic polymer; and the ink can comprise an anionic pigment dispersion.Type: GrantFiled: September 14, 2012Date of Patent: July 22, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: David Michael Ingle, Chandrasekhar Nadimpalli, Phillip C. Cagle, Britt Marie Christenson, Howard Doumaux, Marc Rossinyol Casals
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Patent number: 8777386Abstract: A solid ink stick enables identification of the ink stick in a variety of different orientations, while preventing the ink stick from being inserted into an ink loader in an orientation in which the ink stick cannot be identified. The ink stick includes two polygon end surfaces opposite one another. Each edge of the end surfaces has a first and a second identifier, which are identical to one another to enable the ink stick to be inserted into an ink loader without regard to the orientation of the edges.Type: GrantFiled: October 17, 2012Date of Patent: July 15, 2014Assignee: Xerox CorporationInventors: Brent R. Jones, Frederick T. Mattern, Brian W. Aznoe
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Patent number: 8770735Abstract: An inkjet recording ink including a pigment dispersion liquid containing at least a first carbon black and a dispersant, a second carbon black, a penetrant, a wetting agent and water, wherein the first carbon black has an average particle diameter D50 of 70 nm to 180 nm as measured by a dynamic light scattering method and has a particle diameter standard deviation equal to or smaller than ½ of the average particle diameter, wherein the dispersant is a condensate of naphthalene sulfonic acid and formalin, wherein the second carbon black is carbon black coated with a resin, and wherein the penetrant is a 2-ethyl-1,3-hexandiol.Type: GrantFiled: September 6, 2010Date of Patent: July 8, 2014Assignee: Ricoh Company, Ltd.Inventors: Minoru Hakiri, Shin Hasegawa, Hiroyuki Fushimi, Mitsuru Naruse, Naoya Morohoshi