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| Number | Title | Issue Date |
| 8398760 | Energy activated compositions A composition susceptible to changing color upon the application of energy, wherein the composition comprises a color former and a tinting colorant, wherein the tinting colorant has a complementary color to that of the composition comprising the color former without... | 03/19/2013 |
| 8308860 | Laser-markable compositions A laser-markable composition comprises a marking component and an organic compound, wherein the organic compound absorbs laser radiation at 780 to 2000 nm and thereby causes the marking component to change color, and wherein the organic compound has an absorptivity ... | 11/13/2012 |
| 8268063 | Carrier solvent for fingerprint formulations A method and composition for transforming a latent physiological biometric into a visible physiological biometric are provided, the method comprising: providing a latent biometric disposed on a surface of an article, wherein said biometric comprises at least one ecc... | 09/18/2012 |
| 8187373 | Printing inks for offset and/or high printing containing NIR absorbers and NIR absorbers soluble in offset and/or high printing inks Printing inks for offset and/or letterpress printing which comprise NIR absorbers, and solubility of the NIR absorber in the printing ink is at least 0.1% by weight. NIR absorbers consisting of cyanine cation with an anion which has long-chain alkyl or aralkyl group... | 05/29/2012 |
| 8182596 | Discolorable ink composition and writing utensils The invention provides a discolorable ink composition which is irreversibly erasable by heating to about 40° C. to 120° C. A discolorable ink composition, where an electron-donating color-forming organic compound and an electron-accepting compound are incorporated... | 05/22/2012 |
| 8182595 | Correcting fluid with drying indicator A correcting fluid with a colored drying indicator that includes as fluorescent dye, sodium 8-hydroxy-1,3,6-pyrenetrisulfonate and a good solvent for the fluorescent dye, in which the solubility of the fluorescent dye at 20° C. is at least equal to 0.1 g/l, and, a ... | 05/22/2012 |
| 7972426 | Printed security mark Embodiments of a printed security mark and a process are disclosed. ... | 07/05/2011 |
| 7901494 | Printing inks for offset and/or high printing containing NIR absorbers and NIR absorbers soluble in offset and/or high printing inks Printing inks for offset and/or letterpress printing which comprise NIR absorbers, and solubility of the NIR absorber in the printing ink is at least 0.1% by weight. NIR absorbers consisting of cyanine cation with an anion which has long-chain alkyl or aralkyl group... | 03/08/2011 |
| 7892338 | Method and ink sets for marking and authenticating articles The invention discloses a method for marking and authenticating a security article, such as a banknote, a document, a ticket, a foil, a thread, a label, a card, or a commercial good, so as to provide for an easy authentication of said article by a machine, such as a... | 02/22/2011 |
| 7789954 | Water-based fluorescent ink composition An ink composition includes C.I. Acid Red 52, C.I. Acid Red 92, C.I. Direct Yellow 87, water, a water-soluble organic solvent, tetraethylene glycol monoethylhexyl ether, and triethylene glycol monobutyl ether. ... | 09/07/2010 |
| 7736426 | Phase change inks containing colorant compounds Phase change inks comprising a carrier and a colorant of the formula wherein R1, R2, R3, R4, R5, R6, R, Y, CA, A-, m and n each, independently of the others ... | 06/15/2010 |
| 7727319 | Water-based ink system A no-mess water-based ink including a composition including water, an organic solvent, a coloring agent dissolved in the organic solvent and an emulsifier for use in conjunction with a specially treated substrate containing a color developer. ... | 06/01/2010 |
| 7713342 | Phase change inks Phase change ink comprising carrier and colorant of formula wherein M is atom or group of atoms capable of bonding to central cavity of phthalocyanine molecule, wherein axial ligands optionally can be attached to M, each Râ... | 05/11/2010 |
| 7704308 | Method of highlighting with a reversible highlighting mixture, highlighting kit, and highlighted complex A highlightable mixture, such as an ink, including a colored pigment, an eradicable colorant, and a non-eradicable colorant; a kit including the highlightable mixture and an eradicator fluid; an colorant complex including a colorless or substantially colorless eradi... | 04/27/2010 |
| 7488380 | Highlighting marking compositions, highlighting kits, and highlighted complexes A highlighting (or marking) composition, such as an ink, including a non-eradicable colorant, an eradicable colorant; a kit including a first marking instrument comprising the highlighting mixture and a second marking instrument comprising an eradicator fluid; a col... | 02/10/2009 |
| 7455724 | Decoder system The disclosure is generally related to a decoder system and, more particularly, to a decoder system comprising a coding composition, a decoding composition and optionally, an erasing composition. The disclosure also provides decoder writing instrument systems compri... | 11/25/2008 |
| 7429291 | Print ink containing a plurality of fluorescent coloring materials and inkjet recording method The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be us... | 09/30/2008 |
| 7427318 | Highlightable and highlighted mixtures, marking instruments, and methods of using the same A highlightable mixture, such as an ink, including a colored pigment, an eradicable colorant, and a non-eradicable colorant; a kit including the highlightable mixture and an eradicator solution; colorant complex including a colorless or substantially colorless eradi... | 09/23/2008 |
| 7365107 | Marking liquid The invention relates to a marking liquid which contains a polymer dispersion with particles which are colored with marking agent, optionally further dyes and marking agents, one or more salts of a polyvalent, in particular bi- or trivalent cation, water and optiona... | 04/29/2008 |
| 7364770 | Coated fine particles and method for producing coated fine particles by reverse Diels-Alder reaction An object of the present invention is to provide coated fine particles with a uniform particle size, having stable crystals on the surface, and to provide colored fine particles which exhibit good color development. A recorded image formed by a dispersion and an ink... | 04/29/2008 |
| 7364613 | Fluorescent water base ink for ink-jet recording A fluorescent water base ink for ink-jet recording includes water, a first fluorescent dye, and a second fluorescent dye. The first fluorescent dye absorbs light in a first absorption wavelength region in an ultraviolet region to emit fluorescence, and the first flu... | 04/29/2008 |
| 7350716 | Mechanism for ensuring authenticity of written and printed documents A mechanism for ensuring the authenticity of written and printed documents. With the mechanism of the present invention, electronic ink is deposited onto a document, wherein the electronic ink deposited comprises at least one mark visible to a user. Current is appli... | 04/01/2008 |
| 7351277 | IR transparent cyan inkjet ink The present invention pertains to a cyan dye-based inkjet ink having substantially no absorption in the near-infrared region of the spectrum (near-IR transparent). The invention further pertains to a dye-based inkjet ink set comprising this near-IR transparent cyan ... | 04/01/2008 |
| 7347891 | Water base ink set for ink-jet recording and method for producing the same A water base ink set for ink-jet recording includes a black ink containing water, a black pigment and a water-soluble organic solvent and a color ink containing water, a dye, and a water-soluble organic solvent. The black pigment is a negatively-chargeable and self-... | 03/25/2008 |
| 7344587 | Magnetic ink tissue markings The invention provides tissue markings (such as tattoos) comprising magnetic particles, e.g., magnetite, and methods for making and altering, e.g., removing them. ... | 03/18/2008 |
| 7341334 | System and method for preventing security ink tampering An ink supply system for a printer including an inner chamber comprising a controlled security ink; an outer chamber comprising a chemical; an ink conduit from the inner chamber through and out of the outer chamber; and a rupture wall at a junction between the inner... | 03/11/2008 |
| 7338553 | Process, compound, ink and use A process for printing an image on a substrate comprising applying to the substrate an ink comprising a compound of Formula (1) or a salt thereof: wherein: R1 and R2 ... | 03/04/2008 |
| 7329314 | Ink for ink-jet recording An ink for ink-jet recording includes a solvent dye in which a xanthene structure and a phthalide structure are spiro bound to each other. When the ink is stored in an ink cartridge containing a polyurethane foam and ink-jet recording is performed, a stable printing... | 02/12/2008 |
| 7314547 | Fountain solution recycling system for commercial printers A method of and apparatus for extending the life of fountain solutions used in commercial printing presses comprises withdrawing fountain solution from the dampener recirculation system of a printing press and directing the withdrawn fountain solution through a sedi... | 01/01/2008 |
| 7303620 | Water-based ink, and image formation method and recorded image using the ink A water-based ink that comprises a liquid medium containing water, a water-dispersible coloring material and a surfactant, wherein when the ink is attached onto a recording material, the water-dispersible coloring material forms a plurality of minute interspersed ag... | 12/04/2007 |
| 7303618 | Ink for ink-jet recording An ink for ink-jet recording is provided in which copper phthalocyanine dyes and a thiazole-based compound are used. In this ink, the mildew resistant properties are not impaired, and the ink exhibits excellent ozone resistance. Furthermore, the formation of a preci... | 12/04/2007 |
| 7303617 | Ink for ink-jet recording An ink for ink-jet recording is provided in which C. I. Direct Blue 199 and a thiazole-based compound are used. In this ink, about 1 mol % to about 20 mol % of the total counter ions in C. I. Direct Blue 199 are ammonium ions or organic ammonium ions. ... | 12/04/2007 |
| 7294659 | Aqueous ink composition An aqueous ink composition comprising: a pigment, having a particle diameter as determined by the light scattering method of no less than 20 nm and no more than 200 nm; and a water dispersible polymer, having a styrene-equivalent number average molecular weight of a... | 11/13/2007 |
| 7294182 | Composition for water-removable ink The present invention provides a composition for water-removable ink with an effect of coupling retardation by using an aliphatic alcohol as a solvent, which is selected from a group comprising n-butyl alcohol, n-propyl alcohol, isopropyl alcohol and pentanol, so th... | 11/13/2007 |
| 7291277 | Method and device for cleaning the fountain solution of a printing press A method for cleaning the fountain solution of a printing press with an automatically emptying separator (16), separates the dirt particles and oil residues from fountain solution and supplies them, as a mixture of dirt and fountain solution, to a dirt and fo... | 11/06/2007 |
| 7285158 | Recording agent, image forming device, and image forming method An image forming method, device and a recording agent for forming an image through subtractive color mixing by using ink of plural color components different in hue. The ink is created by mixing a first coloring agent expressing one of the color components and a sec... | 10/23/2007 |
| 7285161 | Water base pigment ink for ink-jet recording A water base pigment ink for ink-jet recording contains a pigment, water, and at least one of polyethylene glycol and diglycerol. The ink is solidified into a solid matter when the water is evaporated. Further, the solid matter is redissolved in the unsolidified wat... | 10/23/2007 |
| 7270699 | Ink set for ink-jet recording, ink-jet recording method and ink-jet recording apparatus 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 i... | 09/18/2007 |
| 7267716 | Aqueous ink, image recorded using said aqueous ink and method for forming said image An aqueous ink containing at least a water-dispersible coloring material and a water-soluble crystalline component, characterized in that the water-dispersible coloring material forms an aggregate around a crystal of the crystalline component formed as the content o... | 09/11/2007 |
| 7258773 | Solid polymer electrolyte oxygen sensor An oxygen sensor includes a solid polymer electrolyte, e.g., on an acid treated Nafion membrane and uses a diffusion-limited fuel cell type reactions. The sensor avoids electrolyte leakage and avoids consumption of electrodes. In different configurations, a counter ... | 08/21/2007 |
