Patents Assigned to Agfa-Gevaert
  • Stabilizers for use in substantially light-insensitive thermographic recording materials
    Publication number: 20040096788
    Abstract: A substantially light-insensitive black and white monosheet thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one stabilizer selected from the group consisting of 1-phenyl-5-mercaptotetrazole compounds in which the phenyl group is substituted with a substituent containing an optionally substituted aryl group; and 1
    Type: Application
    Filed: November 12, 2003
    Publication date: May 20, 2004
    Applicant: AGFA-GEVAERT
    Inventors: Ingrid Geuens, Carlo Uyttendaele, Ivan Hoogmartens, Johan Loccufier
  • n-type Metal oxide semiconductor spectrally sensitized with a cationic spectral sensitizer
    Publication number: 20040094198
    Abstract: A layer configuration comprising a layer of a nano-porous n-type metal oxide semiconductor with a band-gap of greater than 2.7 eV, an adsorbed cationic spectral sensitizer and a coadsorber capable of enhancing the adsorption of a cationic spectral sensitizer on an n-type metal oxide semiconductor; and a process for preparing this layer configuration comprising the steps of: providing a layer of a nano-porous n-type metal oxide semiconductor with a band-gap of greater than 2.7 eV, adsorbing a coadsorber on the nano-porous n-type metal oxide semiconductor layer and adsorbing a cationic spectral sensitizer on the nano-porous n-type metal oxide semiconductor layer.
    Type: Application
    Filed: September 9, 2003
    Publication date: May 20, 2004
    Applicant: AGFA-GEVAERT
    Inventors: Paul Callant, Hieronymus Andriessen
  • 3,4-alkylenedioxythiophenedioxide compounds and polymers comprising monomeric units thereof
    Publication number: 20040097741
    Abstract: A 3,4-alkylenedioxythiophenedioxide compound represented by formula 1
    Type: Application
    Filed: August 27, 2003
    Publication date: May 20, 2004
    Applicant: AGFA-GEVAERT
    Inventors: Bert Groenendaal, Frank Louwet, Hieronymus Andriessen
  • Stable electroluminescent devices
    Publication number: 20040096695
    Abstract: An electroluminescent device comprising a transparent or translucent support, a transparent or translucent first electrode, a second conductive electrode and an electroluminescent phosphor layer sandwiched between the transparent or translucent first electrode and the second conductive electrode, wherein the first and second electrodes each comprises a polymer or copolymer of a 3,4-dialkoxythiophene, which may be the same or different, in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge; a display comprising the above-mentioned electroluminescent device; a lamp comprising the above-mentioned electroluminescent device; manufacturing processes for the above-mentioned electroluminescent devices; and the use of such devices for the integrated backlighting of static and dynamic posters and signage.
    Type: Application
    Filed: July 7, 2003
    Publication date: May 20, 2004
    Applicant: AGFA-GEVAERT
    Inventors: Peter Willaert, Tom Cloots, Roger Van Den Bogaert
  • Manufacturing of a thin film inorganic light emitting diode
    Patent number: 6737293
    Abstract: Nanoparticle dispersions of ZnS doped with a luminescent center are prepared by precipitation from aqueous solutions. When such dispersions are coated between conductive electrodes a Thin Film Inorganic Light Emitting Diode device is obtained.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: May 18, 2004
    Assignee: AGFA-Gevaert
    Inventor: Hieronymus Andriessen
  • Film material exhibiting a “colder” blue-black image tone and improved preservation characteristics
    Patent number: 6737228
    Abstract: A black-and-white silver halide photographic film material has been provided, wherein said material has first and second major surfaces, at least one of which is coated with at least one light-sensitive silver halide emulsion layer, overcoated with a protective antistress layer, wherein said emulsion layer(s) have chemically and spectrally sensitized {111} tabular hexagonal emulsion grains or crystals rich in silver bromide in an amount covering at least 50% of the total projective grain surface of all grains, wherein said grains further have an average equivalent volume diameter in the range from 0.3 &mgr;m up to 1.5 &mgr;m and an average grain thickness of less than 0.30 &mgr;m, and an average amount of iodide from 0.05 mole % up to 0.5 mole % based on silver over the whole grain volume, characterized in that said material comprises, in an amount of at least 0.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: May 18, 2004
    Assignee: AGFA-Gevaert
    Inventors: Kathy Elst, Johan Loccufier
  • Thermal head printer and process for printing substantially light-insensitive recording material
    Publication number: 20040090518
    Abstract: A thermal head printer for printing but not perforating a substantially light-insensitive thermographic material, the thermal printer comprising: a transport system having a transport direction, n thermal heads, where n is an integer, each of the thermal heads comprising an array of substantially rectangular energizable heating elements, the heating elements having a length Ln in the transport direction and a pitch Pn between adjacent heating elements, and a means for supplying electrical energy to each of the substantially rectangular energizable heating elements in at least one of the thermal heads, the transport system being capable of transporting the light-insensitive thermographic material in contact or proximity with at least one of the thermal heads, wherein at least one of the thermal heads comprises heating elements for which Ln/Pn is between 0.25 and 0.
    Type: Application
    Filed: October 24, 2003
    Publication date: May 13, 2004
    Applicant: Agfa-Gevaert N.V.
    Inventors: Eric Kaerts, Ivan Hoogmartens, Geert Defieuw
  • Device for borderless printing of images using an ink jet printer
    Patent number: 6733109
    Abstract: A device for borderless printing on imaging material by means of an ink jet printer has a support surface against which the imaging material lies while printing ink is applied to it during the printing process. The support surface has cutouts and is hydrophobic and/or oil-repellant, so as to repel printing ink that is sprayed outside the borders of the imaging material.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: May 11, 2004
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Bernhard Lorenz, Knut Oberhardt, Peter Muller, Gudrun Taresch
  • Diagnostic radiographic silver halide photographic film material
    Patent number: 6733947
    Abstract: A single-side coated silver halide photographic film material has been disclosed, said film material comprising a support, at least one light-sensitive emulsion layer and a substantially light-insensitive protective hydrophilic colloid layer farther away from said support than said emulsion layer, wherein said emulsion layer contains a silver halide emulsion rich in silver bromide with cubic crystals having an average numerical diameter in the range from 0.4 up to 0.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: May 11, 2004
    Assignee: Agfa-Gevaert
    Inventors: Leo De Bie, Johan Loccufier, Ludo Joly, Marc Van den Zegel, Paul Callant
  • Apparatus for transporting single sheets through a device for exposing or printing the single sheets
    Patent number: 6733198
    Abstract: An apparatus for transporting single sheets through a device for exposing or printing the single sheets, with a drum and means that press the single sheets against the drum, with a processing station having a processing gap, with the single sheets being exposed or printed in the processing station, includes means that limit the processing gap. According to the invention, a belt unit is provided that presses the single sheets against the drum, with the belt unit having a plurality of parallel extending continuous belts that are mutually decoupled in their movement and can be driven exclusively directly or indirectly through coupling with the drum surface.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: May 11, 2004
    Assignee: AGFA-Gevaert AG
    Inventor: Heinrich Hünniger
  • Process for preparing a compound containing a heteroaromatic group with one or more ether substituents
    Patent number: 6734312
    Abstract: A process for preparing a heteroaromatic compound having a heteroaromatic nucleus substituted with one or more ether groups comprising the step of: condensing at least one hydroxy-group of a compound having said heteroaromatic nucleus, said at least one hydroxy group (—OH) being substituted at &agr;- or &bgr;-positions with respect to a heteroatom of said heteroaromatic nucleus, with an alcohol containing one or more primary or secondary alcohol groups, optionally substituted with nitro, amide, ester, halogen, cyano or (hetero)aromatic groups, using the redox couple of a triaryl- or trialkylphosphine and an azodioxo-compound at a temperature between −40° C. and 160° C.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: May 11, 2004
    Assignee: Agfa-Gevaert
    Inventors: John R. Reynolds, Bert Groenendaal, Kyukwan Zong, Luis Madrigal
  • Process for the offset printing of patterns via the fountain medium
    Publication number: 20040083913
    Abstract: A process for the offset printing of a receiving medium with a functional pattern comprising in any order the steps of: applying a printing ink to a printing plate and wetting the printing plate with an aqueous fountain medium containing a solution or a dispersion containing at least one moiety having at least colouring, pH-indicating, whitening, fluorescent, phosphorescent, X-ray phosphor or conductive properties.
    Type: Application
    Filed: October 24, 2003
    Publication date: May 6, 2004
    Applicant: Agfa-Gevaert N.V.
    Inventors: Luc Leenders, Eddie Daems
  • Method of enhancing color images
    Patent number: 6731790
    Abstract: A multi-resolution representation is generated of at least one color component of a color image in a selected color space by applying a decomposition procedure to the color component. The multi-resolution representation(s) is (are) modified by application of at least one non-linear modifying function. Next, modified color component images are generated by applying the inverse of the decomposition step to the modified multi-resolution representations(s).
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: May 4, 2004
    Assignee: Agfa-Gevaert
    Inventors: Koen Van de Velde, Paul Suetens
  • Color proofer with registering means
    Patent number: 6729780
    Abstract: A printing apparatus is described for two-sided colour proofing with improved registering of front- and back-side images. Improved registering is performed by: web feeding device with de-curling system tumbler unit for turning the receiving medium alignment sensing and correction system.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: May 4, 2004
    Assignees: Agfa-Gevaert, Mutoh Europe
    Inventors: Rudy Sampson, Stefaan Deman, Serge Defever, Marc Chys, Christophe Michiels, Jozef Feys, Patrick Staelens
  • Method and apparatus for digitizing images from photographic film
    Patent number: 6731328
    Abstract: Apparatus for digitizing images (1) includes a reader device (3), such as a CCD array, having a photo-sensitive surface (4) that comprises a large number of pixels arrayed longitudinally and laterally. The reader device (3) is subjected to a ninety degree rotation and/or linear displacement by a distance of several pixels, as necessary, before and/or during the digitization process so as to provide optimum digital resolution for a variety of image formats.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: May 4, 2004
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Marijan Grandverger, Ekkehard Gross, Bernhard Lorenz
  • APPARATUS FOR PROCESSING PHOTOGRAPHIC MATERIALS
    Publication number: 20040081456
    Abstract: An apparatus for processing photographic materials has at least one photographic processing station enclosed in a housing. The housing and the processing station are each independently mounted through their own oscillation-damping connections to a common support base, so that any connections between the housing and the processing station run exclusively through the common support base.
    Type: Application
    Filed: September 18, 2003
    Publication date: April 29, 2004
    Applicant: Agfa-Gevaert AG
    Inventors: Michael Johnke, Hans Schluter
  • Storage phosphor screen and preparation method
    Publication number: 20040081750
    Abstract: A method of preparing a phosphor screen having at least a substrate and a phosphor layer comprising a CsX:Eu2+ phosphor wherein X represents a halide selected from a group consisting of Br and Cl and wherein the phosphor is deposited by physical vapour deposition on the substrate. During deposition the substrate is at a temperature in the range of 135° C. to 235° C. and variation of the temperature of the substrate occurring during the deposition process is not more than 50° C.
    Type: Application
    Filed: October 8, 2003
    Publication date: April 29, 2004
    Applicant: AGFA-GEVAERT
    Inventors: Paul Leblans, Luc Struye
  • Bundle for processing chemicals
    Patent number: 6726382
    Abstract: A bundle for photographic processing chemicals containing the concentrates for all the processing steps for processing a photographic material, wherein the concentrations of chemicals in the individual concentrates are selected such that all the concentrates are prepared with the same quantity of water in each case and the resultant replenishing liquids for all the processing steps are sufficient for the same quantity of photographic material, makes it possible largely to avoid operating errors and provides simple monitoring of the replenishment rate of the individual baths.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: April 27, 2004
    Assignee: AGFA-Gevaert
    Inventors: Peter Buttner, Marc Reiners
  • Multi-level printing process reducing aliasing in graphics
    Patent number: 6725779
    Abstract: A multi-level printing process using a printer by converting electronic page data to multi-level bitmap data with a specific number of gradation levels Nlev at a specified spatial resolution higher than that of the printer; converting the multi-level bitmap data to a lower spatial resolution; reducing the number of gradation levels by a processing technique to some lower number Nlevp giving a second multi-level bitmap; and printing the multi-level output bitmap by a printer having at least Nlevp different gradation levels at a single pixel location.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: April 27, 2004
    Assignee: Agfa-Gevaert
    Inventors: Koen Van de Velde, Luc Minnebo, Paul Delabastita
  • Particular type of a thin layer inorganic light emitting device
    Patent number: 6724141
    Abstract: A Thin Layer Inorganic Light Emitting device is disclosed comprising a substrate, a first electrode, a coated layer comprising substantially undoped zinc sulfide nanoparticles, and a second electrode. On applying a voltage between the two electrodes the device emits light with an emission maximum of electroluminescence at a wavelength above 450 nm.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: April 20, 2004
    Assignee: Agfa-Gevaert
    Inventor: Hieronymus Andriessen