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| Number | Title | Issue Date |
| 7300695 | Alignable diffractive pigment flakes 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 particul... | 11/27/2007 |
| 7282314 | Toner processes A toner process involving the heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, and a second latex containing a resin free of crosslinking in the presence of a coagulant to p... | 10/16/2007 |
| 7258915 | Flake for covert security applications Covert flakes having one or more symbols and/or a selected shape are used in a composition, such as ink or paint, to provide a covert security feature to an object. In some embodiments the composition includes base pigment, and the covert flakes are covert pigment f... | 08/21/2007 |
| 7255433 | Multiple pass aqueous MICR inkjet ink printing 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 ... | 08/14/2007 |
| 7241489 | Opaque flake for covert security applications Opaque flakes, such as pigment or bright flake used in paints and inks, have a selected shape and/or other indicia to provide a covert security feature to an object. In some embodiments the composition includes base pigment, and the opaque covert flakes match the vi... | 07/10/2007 |
| 7224528 | Optically variable security devices A security article includes a light transmissive substrate having a first surface and an opposing second surface, with the first surface having an optical interference pattern such as a holographic image pattern or an optical diffraction pattern thereon. A color shi... | 05/29/2007 |
| 7220524 | System and method for producing secure toner-based images A system and a method for printing a secure document that is difficult to forge and readily easy to visually verify are disclosed. The system includes a colorant for printing an image on a surface of a document, a dye for forming a latent version of the image undern... | 05/22/2007 |
| 7220525 | Secure imaging toner and methods of forming and using the same A toner for printing documents that are difficult to chemically or physically forge and that are readily easy to visually verify and methods of using and forming the toner are disclosed. The toner includes a colorant for printing an image on a surface of a document ... | 05/22/2007 |
| 7214463 | Toner processes A toner process comprised of a first heating of a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, and a core latex comprised of a first latex containing a vinyl crystalline polyester resin substantially free of crosslinking, and... | 05/08/2007 |
| 7197174 | Magnetic ink encoding pen In one embodiment, an information signal is stored in magnetic ink. In another embodiment, a magnetic ink encoding stylus includes a magnetic ink write head. In a further embodiment, a computer system includes a magnetic ink encoding stylus coupled to a computer via... | 03/27/2007 |
| 7157195 | Recording material and image forming method An image forming method is disclosed, comprising (a) exposing a recording material comprising on a support an image forming layer containing colored magnetophoretic particles and a photopolymerizable composition to light to perform photocuring and (b) applying a mag... | 01/02/2007 |
| 7066669 | Method of creating an image replacement document for use in a check truncation environment and an apparatus therefor A method of creating an image replacement document (IRD) during two passes of a sheet material through a printing apparatus including building a first print file portion based upon IRD data, building a second print file portion based upon IRD data, printing with non... | 06/27/2006 |
| 7033720 | Development systems for magnetic toners and toners having reduced magnetic loadings Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to ... | 04/25/2006 |
| 7022409 | Pleochroism powder and pleochroism printed article A multi color changing powder with a bluish base appearance color of which color tone varies according to the observation direction is provided. A pleochroism powder of the present invention comprises a flaky mica having a coating which consists of two layers wherei... | 04/04/2006 |
| 6979524 | Contact printing of longitudinal magnetic media with perpendicularly applied magnetic field A method of forming a magnetic transition pattern in a longitudinal magnetic recording medium, comprising steps of: (a) providing a magnetic recording medium including a layer of a magnetic material having a surface comprised of a ... | 12/27/2005 |
| 6970154 | Fringe-field filter for addressable displays The display kit of the present invention comprises: an addressable display medium configured to exhibit a first aspect under the influence of an addressing vector field in a first direction at an addressing magnitude; and an addressor; where the addressor is configu... | 11/29/2005 |
| 6942954 | Toner processes A toner process involving the heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, and a second latex containing a resin free of crosslinking in the presence of a coagulant to p... | 09/13/2005 |
| 6936396 | Toner processes A toner process comprised of heating a mixture of an acicular magnetite dispersion, a colorant dispersion, a wax dispersion, a first latex containing a crosslinked resin, a second latex containing a resin substantially free of crosslinking, a coagulant and a silica,... | 08/30/2005 |
| 6660440 | Method for forming a printing plate in printing machines The present invention relates to a process for generating a printing image carrying printing form on a printing form cylinder in a printing press. The printing image carrying printing form is an erasable printing form on a printing form cylinder of a prin... | 12/09/2003 |
| 6574034 | Electrophoretic displays, display fluids for use therein, and methods of displaying images A method for displaying an image with an electrophoretic display device that includes a multiplicity of individual reservoirs, each containing an electrophoretic display fluid, located between two conductive film substrates, at least one of which is trans... | 06/03/2003 |
| 6509128 | Imagewise printing of adhesives and limited coalescence polymerization method Methods of imagewise printing of adhesives that includes providing a latent adhesive image and then activating the latent adhesive image to form an adhesive image. Methods of preparing latent adhesive toners that involve limited coalescence.... | 01/21/2003 |
| 6063180 | Use of free-flowing, magnetic iron oxide containing granules with 50 to 73 wt. % iron content Magnetic iron oxide-containing granules for producing toners or inks, the granules comprising 95.0 to 99.8 wt. % of a magnetic iron oxide-containing compound and 0.2 to 5.0 wt. % of a binder, wherein the magnetic iron oxide-containing compound has an iron... | 05/16/2000 |
| 5981039 | Magnetic recording medium and a manufacturing method thereof as well as a photo-printing apparatus using such a magnetic recording medium A magnetic recording medium in accordance with the present invention is constituted by a first magnetic film having a magnetic anisotropy in a first direction parallel to the film surface and a second magnetic film that is formed on the first magnetic fil... | 11/09/1999 |
| 5952138 | Magnetic developer and recognition method of magnetic-ink character The invention relates to a magnetic developer comprising a magnetic toner containing at least a binder resin, a magnetic material and a hydrocarbon wax,wherein said magnetic toner has such properties that: a DSC curve of the toner measured by the use of a diff... | 09/14/1999 |
| 5780190 | Magnetic image character recognition processes with encapsulated toners An ionographic process which comprises the generation of a latent image comprised of characters; developing the image with an encapsulated magnetic toner comprised of a core comprised of a polymer and magnetite and wherein the core is encapsulated within ... | 07/14/1998 |
| 5718995 | Composite support for an imaging element, and imaging element comprising such composite support A composite support for an imaging element is described, which composite support comprises a polymeric film and an electrically conductive layer, wherein the polymeric film comprises a surface which has been activated by energetic treatment, the electrica... | 02/17/1998 |
| 5667924 | Superparamagnetic image character recognition compositions and processes of making and using An image character recognition process comprising: forming an image in a predetermined size and predetermined shape on a receiver member with a marking composition containing a superparamagnetic component; detecting the predetermined size and predetermine... | 09/16/1997 |
| 5644987 | Process and apparatus for printing using a magnetic toner which is electrostatically charged A process and apparatus for printing with a press at least one image by transfer of an electrostatic colorant vehicle between an intermediate transfer element and a printing carrier, including the steps of making the intermediate transfer element in the p... | 07/08/1997 |
| 5614340 | Migration imaging, optionally with dyes or pigments to effect bleaching A bleachable composition, including an acid photogenerator and a near-infrared radiation-absorbing dye or pigment, is utilized in a method of migration imaging to prevent unwanted absorptions. This composition can be incorporated either in the thermoplast... | 03/25/1997 |
| 5552252 | Magnetic toner imaging A process for avoiding or minimizing comet formation which comprises dispersing in a magnetic toner comprised of resin particles, a first magnetite, carbon black, charge additive, and wax, a second soft magnetite; and wherein the toner contains a silica s... | 09/03/1996 |
| 5472831 | Silver halide photographic material A silver halide light-sensitive material is described, including an embodiment containing a polyester film support having thereon at least one light-sensitive layer, wherein the polyester film support satisfies the following relationships: Tgࣘ32.1A... | 12/05/1995 |
| 5424822 | Three-dimensional color image printer A printer for forming an image by image-wise exposure of a layer of chromogenic microcapsules. The observable image produced may have a three-dimensional topographical structure, such as to form the bumps of the Braille alphabet, or to replicate the surfa... | 06/13/1995 |
| 5324603 | Method for forming an image on a magnetic composite medium and apparatus therefor In accordance with the invention, an image is formed by applying a local magnetic field to selected regions of a magnetic composite medium comprising columns of magnetic particles distributed in a matrix medium. The particles are "hard" or "semi-hard" mag... | 06/28/1994 |
| 5256479 | Ferromagnetic ultrafine particles, method of making, and recording medium using the same Ultrafine particles of Fe--Co--P material with a Fe/Co atomic ratio of from 95/5 to 70/30 and a (Fe+Co)/P atomic ratio of from 85/15 to 60/40 show improved ferromagnetic properties. The average particle size is from 0.005 to 0.1 μm. Such ultrafine partic... | 10/26/1993 |
| 5231450 | Three-dimensional color image printer A printer for forming an image by image-wise exposure of a layer of chromogenic microcapsules. The observable image produced in accordance with the present invention may have a three-dimensional topographical structure, such as to form the bumps of the br... | 07/27/1993 |
| 5229259 | Silver halide photographic material Disclosed is a silver halide photographic material comprising a silver halide emulsion layer on at least one side of a support and at least one magnetic recording layer on at least one side of the support, and the magnetic recording layer is transparent a... | 07/20/1993 |
| 5223360 | Materials coated with plate-like pigments Materials coated with plate-like pigments and characterized in that the coating shows structuring in defined areas due to a difference in the orientation of the pigment particles are highly suitable in the area of general security printing.... | 06/29/1993 |
| 5154944 | Method and apparatus for developing a latent magnetic image A method and apparatus for developing a latent magnetic image in which a layer of magnetically attractable toner powder having a specific resistance less than 109 ohms.meter is conveyed by a toner conveyor to a developing zone past a medium car... | 10/13/1992 |
| 5147744 | MICR processes with colored encapsulated compositions A colored magnetic encapsulated toner composition comprised of a core comprised of a polymer binder, magnetic metal particles, whitener, color pigment, dye or mixtures thereof, and which core is encapsulated in a polymeric shell, and wherein the toner sur... | 09/15/1992 |
| 5147768 | Silver halide color photographic material containing magnetic recording element A silver halide color photographic material comprising a transparent support having provided on the frontside thereof at least one hydrophilic colloid layer at least one layer of which is a photosensitive silver halide emulsion layer, said photographic ma... | 09/15/1992 |
