Specified Particle Size Or Coated Particle Containing Patents (Class 106/31.65)
  • Publication number: 20080182085
    Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 31, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi OYANAGI, Kiyohiko TAKEMOTO, Chiyoshige NAKAZAWA
  • Publication number: 20080182083
    Abstract: An ink set includes an oil ink composition containing a metal pigment; and at least one aqueous ink composition selected from the group consisting of a chromatic ink composition containing a chromatic pigment, a black ink composition containing a black pigment, and a white ink composition containing a white pigment.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 31, 2008
    Applicant: Seiko Epson Corporation
    Inventors: Takashi Oyanagi, Kiyohiko Takemoto, Kazuhiko Kitamura
  • Patent number: 7404852
    Abstract: An inkjet ink is provided, which includes a solvent and a pigment having an average particle diameter of not larger than 250 nm. The number of flocculates of pigment particles having a diameter of 1 ?m or more is 1.6×108/cm3 or less.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: July 29, 2008
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Mitsuru Ishibashi, Toru Ushirogochi, Kazuhiko Ohtsu, Ryozo Akiyama, Masashi Hiroki
  • Publication number: 20080171148
    Abstract: An ink set for ink-jet recording, which provides a vivid and sharp ink-jet recorded material with no bleeding, is composed of a plurality of pigment inks and configured such that the average particle diameter of a pigment contained in any ink precedently landing on a recording medium is less than that of a pigment contained in another ink subsequently landing on the recording medium, and such that at least two pigment inks are different in average particle diameter of the pigment contained therein to each other.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 17, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hisako TONISHI, Ryuji KATO
  • Publication number: 20080169452
    Abstract: The invention relates to a mixture and a method for imprinting textiles. The mixture used for the imprinting of textiles, includes: A) at least one pigment, B) at least one dispersing agent on the basis of oxalkylated linear or branched alkanes, fatty acids or fatty alcohols, and/or alkyl sulfates or alkyl sulfonates, and/or polyelectrolytes, and/or alkylated, and/or arylated glycosides; C) at least one water-soluble or water-dilutable, radiation-hardenable binding agent with a molecular weight above 2000 g/mol and at least two polymerizable groups for each binding agent molecule, which are cross-linked to the binding agent molecule by at least one urethane group or urea group; D) water.
    Type: Application
    Filed: December 27, 2005
    Publication date: July 17, 2008
    Applicant: ITCF Institut fur Textilchemie Und Chemiefasern
    Inventors: Reinhold Schneider, Marion Funkler
  • Publication number: 20080134934
    Abstract: The ink applicable to industrial decoration, especially for products that require a thermal treatment subsequent to the printing by means of an ink injection technique, characterised in that the composition contains a solid part made up of inorganic materials and a non-aqueous liquid part that are homogenised and because of the fact that they can support firing temperatures of between 500° C. and 1,300° C. The function of the solid part is to provide the corresponding colour, whilst the main function of the liquid part is for the inks to have appropriate characteristics to achieve a good performance of same during the ink injection decorating process.
    Type: Application
    Filed: January 17, 2006
    Publication date: June 12, 2008
    Inventors: Juan Vicente Corts Ripoll, Francisco Sanmiguel Roche, Carlos Concepcion Heydorn, Oscar Ruiz Vega
  • Publication number: 20080131614
    Abstract: An inkjet ink, comprises an ink vehicle and a white pigment dispersed in the vehicle, wherein the pigment comprises particles in which at least 5% of the particles have an average size greater than 100 nm and at least 25% of the particles have an average size less than 50 nm.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Inventor: Christopher O. Oriakhi
  • Publication number: 20080118657
    Abstract: The present invention is drawn to ink compositions and methods for ink-jet recording. The ink-jet ink can comprise water and at least 20 wt % solids. The solids can include pigment particulates and silica particulates dispersed in the ink-jet ink, as well as solid humectant substantially dissolved in the ink-jet ink. The pigment particulates, silica particulates, and solid humectant substantially remain with a dried image that is printed using the ink-jet ink of the present invention.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 22, 2008
    Inventors: Liat Taverizatshy, Or Brandstein, Efrat Soroker, Eylan Cohen
  • Patent number: 7374609
    Abstract: The present invention relates to pigments whose particles have a length of from 2 ?m to 5 mm, a width of from 2 ?m to 2 mm and a thickness of from 50 nm to 1.5 ?m and a ratio of length to thickness of at least 2:1, the particles having a core of a metallically reflecting material having two substantially parallel faces, the distance between which is the shortest axis of the core, comprising (a), optionally, on one parallel face of the core, an SiOy layer wherein 0.95<y?2.0, (b), on the SiOy layer, an SiOx layer wherein 0.03<x?0.95, and (c), on the SiOx layer, an SiOz layer wherein 0.95<z?2.0, to a method for the production thereof, and to the use thereof in paints, textiles, ink-jet printing, cosmetics, coating compositions, plastics, printing inks and in glazes for ceramics and glass. The pigments without an SiOy layer produce brilliant colours. The pigments with an SiOy layer are opaque and exhibit brilliant colours with a metallic appearance.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: May 20, 2008
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Patrice Bujard, Philippe Bugnon
  • Patent number: 7371456
    Abstract: The present invention provides nanoparticle based recording mediums, inks and ink compositions, methods of making nanoparticle based recording mediums and inks, nanoparticles and methods for making nanoparticles, methods for stabilizing colorants against electromagnetic radiation (including radiation in the visible wavelength range), methods for enhancing the substrate independent durability performance of inks, and methods for color density control. The nanoparticle based inks deliver better color, color density control, improved printability, enhanced durability, and increased lightfastness, and are capable of being printed on woven and non-woven fabrics and paper products without special treatment or other limitations.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: May 13, 2008
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ronald S. Nohr, John Gavin MacDonald
  • Patent number: 7367666
    Abstract: An inkjet recording method which prints out by ejecting onto a recording medium an ink set for inkjet use, wherein the ink set includes at least: a first liquid containing at least a coloring material, a water soluble solvent and water; a second liquid containing at least a coagulant, a water soluble solvent and water; and a third liquid containing at least a coagulant, a water soluble solvent and water; wherein, (A) printing modes include a single sided printing mode and a double sided printing mode, (B) when the single sided printing mode is selected printing is carried out by ejecting the first liquid and the second liquid, (C) when the double sided printing mode is selected printing is carried out by ejecting the first liquid and the third liquid, (D) the relationship 0.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: May 6, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Takatsugu Doi
  • Publication number: 20080098927
    Abstract: A pigmented phase change ink composition comprising an ink carrier, a dispersing agent, and pigment particles. The ink can be resistant to substantial aggregation and settling of the pigment particles in the melt and even when exposed to freeze thaw cycles.
    Type: Application
    Filed: October 26, 2006
    Publication date: May 1, 2008
    Applicant: XEROX CORPORATION
    Inventors: C. Geoffrey ALLEN, Adela GOREDEMA, Stephan V. DRAPPEL, Neha KHARBANDA, Caroline M. Turek, Eniko TOMA, Christopher A. WAGNER
  • Patent number: 7364614
    Abstract: The disclosure is generally related to writing instruments capable of making markings containing large diameter glitter pigment particles, and glitter ink compositions for the same. In one embodiment, the disclosure provides a capillary-action marker comprising a glitter ink composition comprising glitter pigment particles having a particle size greater than about 12.1 microns in at least one dimension and at least one solvent, a low density ink reservoir for storing the glitter ink composition, and a porous nib in fluid communication with the low density ink reservoir.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: April 29, 2008
    Assignee: Sanford, L.P.
    Inventors: Wing Sum Vincent Kwan, Jennifer Carra
  • Patent number: 7344590
    Abstract: The present invention relates to silver pigments based on transparent, low-refractive-index, platelet-shaped substrates which have a high-refractive-index coating consisting of TiO2 having a layer thickness of 5-300 nm and optionally an outer protective layer, and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, button pastes, ceramic materials, glasses, for seed coloring, as dopants in the laser marking of plastics and papers, as additives for coloring in the foods and pharmaceuticals sectors, and in cosmetic formulations and for the preparation of pigment compositions and dry preparations.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: March 18, 2008
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Christoph Schmidt, Tanja Delp, Johann Dietz
  • Publication number: 20080036830
    Abstract: An ink-jet ink including a pigment a dispersant, a water, a particulate resin (A) dyed with a fluorescent dye and having an average particle diameter of from 50 to 200 nm, and an emulsion of a self-emulsifiable polyurethane; and a method for preparing the ink-jet ink, an ink cartridge containing the ink-jet ink, an image forming method using the ink-jet ink, and an image formed with the ink-jet ink.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 14, 2008
    Inventors: Yuji NATORI, Keishi TANIGUCHI, Minoru HAKIRI, Yasuyuki HOSOGI, Shigeo HATADA, Shinn HASEGAWA
  • Publication number: 20070287790
    Abstract: The present invention relates to formed resinous articles derived from compositions comprising an ASA resin and a special visual effect additive.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 13, 2007
    Inventors: Douglas Warren Howie, Olga Kuvshinnlkova, Patrick Rodgers
  • Publication number: 20070281140
    Abstract: The present invention relates to colored reflective features, e.g., reflective security features or reflective decorative features, that optionally exhibit color shifting and to inks and processes for making such features. The features, as well as the inks optionally used to form the features, comprise nanoparticles and a colorant that preferably modifies a spectrum of light that is reflected by a reflective layer formed from the nanoparticles. The processes involve forming the features from one or more inks using a direct write printing process.
    Type: Application
    Filed: May 31, 2006
    Publication date: December 6, 2007
    Applicant: Cabot Corporation
    Inventors: Scott T. Haubrich, Mark J. Hampden-Smith, Rimple Bhatia, Miodrag Oljaca
  • Patent number: 7303614
    Abstract: An ink composition comprising a dispersion medium and a charged particle, wherein the charged particle comprises a colorant, a compound having pKb of 16 or less in water and containing a proton-acceptive neutral functional group, and a charge controlling agent having pKa of 16 or less in water and containing a proton-donative group.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: December 4, 2007
    Assignee: FUJIFILM Corporation
    Inventor: Seishi Kasai
  • Patent number: 7304095
    Abstract: A photocurable ink for ink-jet printing, including: a photopolymerizable compound; a pigment; and a dispersing agent, wherein the photopolymerizable compound is a radical polymerizable compound; an amine value of the pigment (AMp) is larger than an acid value of the pigment (ACp); and an acid value of the dispersing agent (ACd) is larger than an amine value of the dispersing agent (AMd).
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 4, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Satoshi Masumi, Daisuke Ishibashi
  • Patent number: 7300506
    Abstract: Ink formulations, ink jet sets, methods of stabilizing an ink formulation, printer systems, and methods thereof, are disclosed. One exemplary ink formulation, among others, includes a pigment and a borate buffer. The ink formulation has an ink stability characteristic of a pH drift of less than 1.0 pH over a one year time period. The ink formulation has a size stability characteristic of a diameter of the pigment increasing less than 20% over a one year time period.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: November 27, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Sundar Vasudevan
  • Patent number: 7297202
    Abstract: A dispersible colorant is provided which comprises a colorant and a chargeable resin pseudo fine particle of a size smaller than the size of the colorant being fixed or fused to the colorant, wherein the colorant itself has a surface charge. Thereby, it becomes possible to process a surface of the colorant while exploiting both the characteristic of a resin adhered and fixed to the surface of the colorant and the characteristic of the surface of the colorant, so that it is possible to provide a dispersible colorant that has sufficiently high dispersibility and a simple and easy method of producing the colorant, by use of a colorant that is essentially water-insoluble.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: November 20, 2007
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirofumi Ichinose, Masashi Miyagawa, Junichi Sakai, Yoshio Nakajima, Yoko Ichinose
  • Patent number: 7291209
    Abstract: The present invention relates to inks for silk-screen printing technique, as well as the corresponding printing technique, designed to bestow upon the reproduction obtained by means of the use of said inks on an appropriate substrate, preferably of a paper type, a particular feel, preferably a particular roughness or coarseness. In particular, the present invention relates to an ink for silk-screen printing of catalogues or advertising leaflets for products designed for decorative wall coatings that will reproduce also the feel of the final decoration applied on the wall substrate.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: November 6, 2007
    Assignee: Candis S.R.L.
    Inventor: Alberto Gilli
  • Patent number: 7291216
    Abstract: The present invention relates to platelet-shaped pigments comprising (a) a layer obtained by calcination of a layer comprising SiOz wherein 0.03?z?2.0 and a metal, to a process for the production thereof, and to the use thereof in paints, text ink-jet printing, cosmetics, coating compositions, plastics, printing inks and in glazes for ceramics and glass. The aforementioned process makes available platelet-shaped pigments having a high degree of planeparallelism and a defined thickness in the range of ±10%, preferably ±5%, of the average thickness.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: November 6, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Patrice Bujard
  • Patent number: 7276113
    Abstract: This invention relates to a surface-modified pigment having at least two surface-active agents chemically immobilized onto the surface of the pigment. The first surface-active agent has an HLB of about 10 or more, the second surface-active agent has an HLB of 9 or less, and the difference in HLB between the first and second surface-active agents is at least about 5. The surface-modified pigments are self emulsifying and are applicable for use in water-based cosmetic systems and toiletry products.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: October 2, 2007
    Assignee: U.S. Cosmetics Corporation
    Inventors: Mark G. Le Page, William Zavadoski, Shigeru Kishida, Yoshiaki Kawasaki
  • Patent number: 7273898
    Abstract: It is an object of the present invention to provide an ink jet recording ink with excellent storage stability, with which no mold or other microbes will be generated over an extended period. The ink jet recording ink of the present invention contains water and a colorant comprising a pigment encapsulated by a polymer having a carboxyl group, wherein this ink jet recording ink is characterized by containing at least methylisothiazolone and octylisothiazolone.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: September 25, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yatake
  • 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: 7270699
    Abstract: The invention provides an ink set for ink-jet recording that is able to form an image having a sufficient optical density and causing no feathering and intercolor bleed within a short period of time while being excellent in reliability of the maintenance unit. The ink set comprises at least a liquid (a) containing a colorant, water soluble solvent and water; a liquid (b) containing a pH adjusting agent, water soluble solvent and water; and a liquid (c). The ink set satisfies any one of the conditions in the first embodiment: (i) the colorant is anionic, (ii) the liquid (b) has a pH of not higher than 6.5, (iii) the liquid (c) has a pH of not lower than 8.0, and (iv) the mixed liquid of the liquid (b) and the liquid (c) in a mass ratio of 1:1 has a pH of not lower than 7; or the second embodiment: (i) the colorant is cationic, (ii) the liquid (b) has a pH of not lower than 8.5, (iii) the liquid (c) has a pH of not higher than 6.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: September 18, 2007
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Takatsugu Doi
  • Patent number: 7255433
    Abstract: The invention relates to a multiple pass printing process for generating MICR-readable indicia using a MICR ink-jet ink composition with a magnetic pigment loading less than that needed to generate the nominal signal level according to the ANSI standard with single pass printing, and to a printed substrate, prepared by the process, which bears MICR-readable indicia having at least two layers of the MICR ink-jet ink composition and which demonstrates a MICR signal level of greater than or equal to the nominal signal value according to the ANSI standard.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: August 14, 2007
    Assignee: Nu-Kote International, Inc.
    Inventors: Michael J. McElligott, Thomas W. Martin, Donald E. Snyder, Jr., Dennis M. Lengyel, Philip Theodore
  • Patent number: 7238424
    Abstract: The light transmitted and reflected by all-dielectric optically variable pigments varies according to viewing angle. The color travel of an all-dielectric optically variable pigment depends on amplitude changes and wavelength shifts in reflectance peaks of the pigment. The width and center wavelength of reflectance peaks can be controlled by selecting the ratio of thicknesses between high-index and low-index layers in a thin film stack. Reflectance peaks can regenerate or become suppressed and shift with tilt angle, thus providing a wide variety of color trajectories.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: July 3, 2007
    Assignee: JDS Uniphase Corporation
    Inventors: Vladimir P. Raksha, Paul T. Kohlmann, Richard A. Bradley, Charles K. Carniglia, Alberto Argoitia, Roger W. Phillips
  • Patent number: 7220303
    Abstract: An inkjet ink that provides improved print quality on diverse types of print media. The inkjet ink includes a first pigment dispersion and a second pigment dispersion in which the pigments are formulated to segregate when deposited on a glossy print medium. Each of the pigments in the first and second pigment dispersions may have at least one of a different particle size, a different particle morphology, and a different manner of dispersion. An inkjet ink that provides improved print quality on a print medium having chemically and physically distinct domains is also disclosed.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: May 22, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: David Tyvoll
  • Patent number: 7211135
    Abstract: The present invention relates to an aqueous colloidal gold solution, comprising (a) nano-particular gold particles, (b) a compound having a polar tertiary amino group conjugated via a hydrophobic aromatic residue with a weaker alkaline group, and (c) a stabilizer comprising a mercapto group (—SH) and an acidic group, in particular a sulfonic acid group (—SO3?). This gold solution uses an ecologically compatible medium and is suited in an especial manner for writing and for printing, also for inkjet printers, since it has a long-term storage life and generates an attractive metal-like gold sheen.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: May 1, 2007
    Assignee: nanogate coating systems GmbH
    Inventors: Michael Berkei, Maren Korsten, Fernando Ibarra, Stephan Haubold
  • Patent number: 7208036
    Abstract: A central core type marking pen which has an ink storage portion of a central core and a pen tip connected thereto, wherein the central core contains a water-based pigment-containing ink composition which contains a thickening agent and exhibits, at 20° C., a viscosity of not less than 45 mPa·s and not greater than 12 mPa·s when a stress of 0.01 and a stress of 10 Pa are applied, respectively.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: April 24, 2007
    Assignee: Sakura Color Products Corporation
    Inventors: Hidetoshi Fukuo, Naoshi Murata, Makoto Hirotani, Tomohiro Sawa
  • Patent number: 7198667
    Abstract: Solid pigment preparations containing the following ingredients as substantial components: (A) 60–85 wt. % of at least one organic pigment, (B) 0.1–15 wt.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: April 3, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Ingo Klopp, Juan Antonio Gonzalez Gomez, Uwe Mauthe, Hansulrich Reisacher, Andreas Stohr
  • Patent number: 7189284
    Abstract: A colored ink composition comprises a carrier and one or more reflectors entrained in the carrier. Each reflector comprises a core and a first dielectric mirror formed over at least a portion of the core to reflect light having a selected color.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: March 13, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Shih-Yuan Wang
  • Patent number: 7163577
    Abstract: Compositions, systems, and methods method of rapidly printing a black ink-jet image are provided. The composition can include a liquid vehicle including water, and from 15 wt % to 30 wt % organic solvent, wherein from 3 wt % to 10 wt % of the organic solvent is a methylated pentanetriol co-solvent; and from 1 wt % to 6 wt % of a dispersant-functionalized black carbon pigment. Obtaining firing frequencies from 15 kHz to 25 kHz are feasible with such compositions, provided the ink-jet architecture used with these pens is capable of firing at these very rapid rates.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: January 16, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Paul Tyrell
  • Patent number: 7132014
    Abstract: An oil-based pigmented ink composition containing a pigment, a polymer and an organic solvent, wherein the organic solvent contains a (poly)alkylene glycol derivative in an amount of 30 to 90% by weight and a nitrogen-containing heterocyclic compound in an amount of 1 to 30% by weight, each based on the whole weight of the ink composition, and the ink composition has a flash point of at least 63° C.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: November 7, 2006
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Takuo Mizutani, Takahiro Furutani
  • Patent number: 7132013
    Abstract: An oil-based pigmented ink composition containing a pigment, a polymer and an organic solvent, wherein the organic solvent contains a (poly)alkylene glycol derivative in an amount of 30 to 90% by weight and a nitrogen-containing heterocyclic compound in an amount of 1 to 30% by weight, each based on the whole weight of the ink composition, and the ink composition has a flash point of at least 63° C.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: November 7, 2006
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Takuo Mizutani, Takahiro Furutani
  • Patent number: 7118620
    Abstract: To reduce show through, particularly for color pigments, a particulate negative metal oxide. Specifically in an anionic ink, tin oxide of primary particle size in the range of about 10 to 30 nm, is incorporated in inkjet inks in amount of less than 2 percent by weight of the total weight of the ink.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: October 10, 2006
    Assignee: Lexmark International, Inc.
    Inventor: Mohanram Jayaram
  • Patent number: 7052536
    Abstract: There is provided a water-based ink that gives good coloration and little blurring on regular paper, gives adequate coloration on specialist paper, and has good fixability, and further gives excellent discharge stability with ink jet recording, and moreover exhibits the effect of a chelating agent even in a small amount, and is not harmful due to evaporating, subliming or the like.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: May 30, 2006
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Yatake
  • Patent number: 7018711
    Abstract: Microcapsules having a capsule core comprising water-soluble organic substances, and a capsule coating which is a condensate of formaldehyde resins and/or alkyl ethers thereof, a process for their preparation, their use, and compositions comprising the microcapsules.
    Type: Grant
    Filed: April 20, 2002
    Date of Patent: March 28, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Dirk Wulff, Ekkehard Jahns, Harald Röckel, Volker Schehlmann
  • Patent number: 7014698
    Abstract: An oil-based pigmented ink composition containing a pigment, a polymer and an organic solvent, wherein the organic solvent contains a (poly)alkylene glycol derivative in an amount of 30 to 90% by weight and a nitrogen-containing heterocyclic compound in an amount of 1 to 30% by weight, each based on the whole weight of the ink composition, and the ink composition has a flash point of at least 63° C.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: March 21, 2006
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Takuo Mizutani, Takahiro Furutani
  • Patent number: 7008744
    Abstract: An oil based ink composition for inkjet printer comprising colored resin particles obtained by dispersion polymerization of a monofunctional polymerizable monomer (A) and a macromonomer (M) copolymerizable with the monomer (A) with coloring component fine particles comprising a surface-treated coloring agent, which are dispersed in a non-aqueous solvent having a dielectric constant of from 1.5 to 20 and a surface tension of from 15 to 60 mN/m at 25° C., as seed particles, in the presence of a dispersion stabilizer (P) soluble in the non-aqueous solvent and a polymerization initiator.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: March 7, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Horie, Yutaka Sakasai
  • Patent number: 6989054
    Abstract: A titanium dioxide slurry for ink jet ink, which comprises water and surface-treated titanium dioxide particles dispersed in the water, the surface treatment being a treatment with an inorganic phosphoric acid compound. Also disclosed is an ink comprising the titanium dioxide slurry.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: January 24, 2006
    Assignee: Seiko Epson Corporation
    Inventors: Seiichi Tanabe, Kiyohiko Takemoto, Seiji Mochizuki, Yasunori Yamazaki, Toshimasa Mori, Kasumi Nakamura, Nobuo Uotani, Toshio Koshikawa, Katsura Ito
  • Patent number: 6939400
    Abstract: An ink comprises 100 parts by weight of an aluminum flake containing aluminum flakes of 0.5 ?m or less, more preferably 0.3 ?m or less, in thickness and 20 ?m2 to 2,000 ?m2 in flake area in a content of 75% or more, 3 to 200 parts by weight of a binding agent, and 600 to 4,000 parts by weight of a solvent, wherein the solvent is the one containing 20 wt % or more of 3-methyl-3-methoxy-1-butanol (MMB).
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: September 6, 2005
    Assignee: Teikoku Printing Mfg. Co., Ltd.
    Inventor: Yuuji Suzuki
  • Patent number: 6921433
    Abstract: An embodiment of the invention relates to an aqueous dispersion containing pigment-containing particles. The dispersion is an aqueous dispersion comprising particles containing a water-insoluble colorant dispersed in a water-containing medium, wherein the light-scattering intensity of the dispersion is at most 30,000 cps when the absorbance peak value of the dispersion in a visible region is regarded as 1.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: July 26, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideto Kuribayashi, Akio Kashiwazaki, Masashi Hirose, Yoshihisa Yamashita, Takeshi Miyazaki
  • Patent number: 6918955
    Abstract: An ink-jet recording liquid using a dye and a pigment, which is excellent in dispersibility and has good printing performance and storage stability, and a process for producing the same are provided. There are provided an ink-jet recording liquid containing a pigment, a dye and a surfactant which are incorporated in an aqueous medium, characterized in that (1) the pigment and the dye at least partly comprise a pigment and a dye reversibly adsorbed thereon without involving a chemical reaction, (2) the dye reversibly adsorbed on the pigment without involving a chemical reaction contains a dye having a dye adsorption shown by the following formula (1) of 0.02 g/g or more, and (3) as the surfactant, a nonionic surfactant and an anionic surfactant coexist; and a process for producing the same.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: July 19, 2005
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masanobu Yokoyama, Hisao Takeuchi, Hideaki Tanaka, Kazuhiro Maruyama, Katsuhito Kanazawa
  • Patent number: 6902807
    Abstract: Diffractive pigment flakes are selectively aligned to form an image. In one embodiment, flakes having a magnetic layer are shaped to facilitate alignment in a magnetic field. In another embodiment, the flakes include a magnetically discontinuous layer. In a particular embodiment, deposition of nickel on a diffraction grating pattern produces magnetic needles along the grating pattern that allow magnetic alignment of the resulting diffractive pigment flakes. Color scans of test samples of magnetically aligned flakes show high differentiation between illumination parallel and perpendicular to the direction of alignment of the magnetic diffractive pigment flakes.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: June 7, 2005
    Assignee: Flex Products, Inc.
    Inventors: Alberto Argoitia, Vladimir P. Raksha, Dishuan Chu
  • Patent number: 6896723
    Abstract: An imaging composition comprising a mixture of a solvent and a functional material; wherein the solvent is a compressed fluid and the functional material is a hole transporting material which is dissolved, dispersed and/or solubilized in the compressed fluid; wherein the mixture is thermodynamically stable or thermodynamically metastable or both; wherein the functional material is solvent-free upon deposition on a substrate; and wherein the functional material forms a solid film upon deposition on the substrate.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: May 24, 2005
    Assignee: Eastman Kodak Company
    Inventors: Glen C. Irvin, Ramesh Jagannathan, Seshadri Jagannathan, Rajesh V. Mehta, Sridhar Sadasivan, Ross A. Sprout, Tin T. Vo
  • Patent number: 6881249
    Abstract: The present invention provides microparticles that create permanent tissue markings, such as tattoos, designed in advance for change and/or removal on demand, as well as methods for implanting the microparticles in tissue and changing and/or removing the resulting markings. Colored microparticles are constructed with specific electromagnetic absorption and/or structural properties that facilitate changing and/or removing tissue markings made using the microparticles by applying specific energy (such as electromagnetic radiation from a laser or flash-lamp) to the tissue marking site.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: April 19, 2005
    Assignees: The General Hospital Corporation, Freedom-2, LLC
    Inventors: Richard R. Anderson, Susanna K. Mlynarczyk, Craig A. Drill
  • Patent number: 6878197
    Abstract: A color set for forming an ink jet image comprising: at least two color inks, each ink comprising a carrier and a pigment; wherein the Relative Gloss Variability (RGV) (Equation A) among inks is less than 10%; when 60° is used as the specular angle. RGV ? ( % ) = ? I = 1 N ? ? ( Gloss ? ( Imaged ? ? ? Area ) I - AG ) ? AG N Where AG = ? I = 1 N ? Gloss ? ( Imaged ? ? ? Area ) I N Equation ? ? ? ( A ) I is a variable which identifies a certain color patch used in the evaluation, N is the total number of color patches used in the evaluation.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: April 12, 2005
    Assignee: Eastman Kodak Company
    Inventors: Huijuan D. Chen, Gang C. Han-Adebekun, Larry P. Seaman