Patents Assigned to Agfa-Gevaert
  • Patent number: 6938970
    Abstract: A multipass printer and printing method is described for printing an image on a sheet printing medium using a page wide printing head. A transporting device provides relative movement between the sheet printing media and a first print head. A series of sheet printing media are presented to the first print head for printing in sequence. The first print head prints a first sub-image of at least one set of monochromatic mutually interstitially printed sub-images of a first image onto a first sheet of printing medium of the series in one pass. A sub-image of an image is printed in succession on each remaining one of the series of sheet printing media followed by printing a further sub-image of the at least one set of monochromatic mutually interstitially printed sub-images of the first image onto the first sheet printing medium.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: September 6, 2005
    Assignee: Agfa Gevaert
    Inventor: Patrick Van den Bergen
  • Publication number: 20050190245
    Abstract: An ink-jet printing system comprising at least one ink-jet ink and a means for jetting an ink-jet ink onto a surface of a substantially non-absorbing ink-jet ink-receiver, characterized in that the ratio ? Sd/? Ld of the dispersive surface energy of said ink-receiver surface a ? Sd over the dispersive surface energy of said ink-jet ink a ? Ld is greater than 0.9. A process for ink-jet printing is also claimed. High areal throughput ink-jet printing (e.g. >100 m2/hour) with curable inks can be performed on different kinds of ink-receiver surfaces with a good image quality and colour density due to a controlled spreading of the ink-drops which can be directly cured.
    Type: Application
    Filed: January 24, 2005
    Publication date: September 1, 2005
    Applicant: AGFA-GEVAERT
    Inventors: Guido Desie, Dirk Quintens, Bavo Muys, Patrick Mertens, Rene De Keyzer, Roland Claes
  • Patent number: 6936304
    Abstract: A method for producing a coating of fluorescent or luminophore material includes the steps of depositing the luminophore material from a vapor phase on a substrate in such a manner that at least 30 weight-% of the luminophore material used is deposited on the substrate and then abrading or polishing the luminophore coating to a predetermined even layer thickness utilizing a polishing agent.
    Type: Grant
    Filed: September 8, 2001
    Date of Patent: August 30, 2005
    Assignee: Agfa-Gevaert
    Inventors: Manfred Fuchs, Erich Hell, Detlef Mattern, Bernhard Schmitt
  • Patent number: 6936404
    Abstract: The invention relates to a recording material for the production of offset printing plates, having a web- or plate-form support, a radiation-sensitive layer on the front of the support and a continuous, pigment particle-free layer on the back of the support. The back layer essentially consists of an organic polymeric material having a glass transition temperature Tg of at least 45° C., and its surface has a Bekk smoothness of from 5 to 800 s. It also relates to a process for the production of this recording material.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: August 30, 2005
    Assignee: Agfa-Gevaert
    Inventors: Steffen Denzinger, Michael Dörr, Günther Hultzsch, Engelbert Pliefke
  • Patent number: 6936411
    Abstract: A silver halide industrial radiographic material comprising on at least one side of a support a hydrophilic gelatinous non-spectrally sensitized radiation-sensitive emulsion layer, having grains, coated in a total amount in the range from 6 to 20 g, expressed as an equivalent amount of silver nitrate per square meter, and at least one non-radiation sensitive protective gelatinous antistress overcoat layer thereupon, wherein a ratio of gelatin to silver, expressed as silver nitrate in the said layer arrangement is at least 0.70, wherein said gelatinous layers are hardened by a gelatin cross-linking agent in an amount in order to have a dissolving time of at least 40 minutes, said time being defined as the period of time from the moment when the silver halide photographic material, dipped into 50 ml of an aqueous solution of 1.5% by weight of sodium hydroxide at 50° C.
    Type: Grant
    Filed: January 15, 2004
    Date of Patent: August 30, 2005
    Assignee: AGFA-Gevaert
    Inventors: Marc Van de Zegel, Marleen De Vester
  • Patent number: 6929970
    Abstract: A process for preparing a layer of a nano-porous metal oxide semiconductor comprising the steps of: (i) providing metal oxide semiconductor nano-particles prepared by a wet precipitation process, (ii) heating said nano-particles at a temperature in the range of 250 to 600° C., (iii) preparing a dispersion of said heat-treated nano-particles from step (ii), (iv) applying said dispersion prepared in step (iii) to a support to produce a coating; and (v) subjecting said coating to a pressure in the range of 100 to 1000 bar at a temperature below 250° C.; a layer of a nano-porous metal oxide semiconductor obtained by this process; and a photovoltaic device comprising a layer of a nano-porous metal oxide semiconductor obtained by this process.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: August 16, 2005
    Assignee: Agfa-Gevaert
    Inventors: Hieronymus Andriessen, Joop Van Deelen, Jan Kroon
  • Publication number: 20050175943
    Abstract: A process for preparing a photothermographic material with increased photosensitivity, the photothermographic material comprising a support and a photo-addressable thermally developable element, exclusive of a compound R—S(M)n wherein R is an aliphatic hydrocarbon, aryl or heterocyclic group, M is a hydrogen atom, or cation, and letter n is a number determined so as to render the molecule neutral and also exclusive of a compound capable of releasing a mobile dye corresponding to or inversely corresponding to the reduction of silver halide to silver at elevated temperatures, the photo-addressable thermally developable element containing a photosensitive agent in catalytic association with a light-insensitive organic silver salt, a reducing agent for the light-insensitive organic silver salt in thermal working relationship therewith and a binder, comprising the steps of: (i) increasing the photosensitivity of a photosensitive silver halide by chemical sensitisation with a chemical sensitising merocyanine dye co
    Type: Application
    Filed: March 1, 2005
    Publication date: August 11, 2005
    Applicant: AGFA-GEVAERT
    Inventors: Herman Uytterhoeven, Paul Callant
  • Patent number: 6927298
    Abstract: A 3,4-alkylenedioxythiophenedioxide compound represented by formula (I): in which: A represents a C1-5-alkylene bridge; R represents an optionally substituted C1-24-alkyl, C3-18-cycloalkyl, C1-18-alkoxy or polyethylene oxide group (optionally with at least one substituent selected from the group consisting of an alcohol, amide, ether, ester or sulphonate group) or an optionally substituted aryl group; a polymer comprising monomeric units represented by formula (I); an aqueous dispersion of a polymer comprising monomeric units corresponding to at least one compound according to formula (I) and a polyanion; a chemical polymerization process for preparing the aqueous dispersion comprising the steps of: (i) providing a solution of a polyanion; (ii) adding a compound according to formula (I) and a thiophene or pyrrole compound to the solution provided in step (i); and (iii) adding an oxidizing or reducing system to the mixture provided in step (ii); a printable paste containing the aqueous dispersion; an elect
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: August 9, 2005
    Assignee: Agfa-Gevaert
    Inventors: Bert Groenendaal, Frank Louwet, Hieronymus Andriessen
  • Patent number: 6927404
    Abstract: A radiation image storage panel. The panel has a supported layer of storage phosphor particles dispersed in a binding medium, and adjacent thereto, between the layer and a support having reflective properties, a layer arrangement of intermediate layers inbetween the layer and the support. The layer arrangement consists of an antihalation undercoat layer containing one or more dye(s), the layer being situated more close to the support, and an adhesion improving layer situated more close to the layer of storage phosphor particles, and wherein the adhesion improving layer is hardened to a lesser extent than the antihalation undercoat layer.
    Type: Grant
    Filed: February 11, 2003
    Date of Patent: August 9, 2005
    Assignee: AGFA-Gevaert N.V.
    Inventors: Rudi Van den Bergh, Thomas Cabes
  • Patent number: 6924011
    Abstract: An improved ink jet recording material is disclosed comprising a support and an ink receiving layer. This layer contains a pigment and a polymeric binder comprising a structural unit derived from a monomer represented by following formula (I): wherein, R1 is alkyl, R2 is alkyl or aryl, R3 is hydrogen, alkyl or aryl, L is a linking unit selected from CO—NH, CO—O, and CO, and R4 is hydrogen or alkyl. The material is improved for mechanical strength. The finished ink jet image shows high color densities and high gloss without the occurence of cracking.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: August 2, 2005
    Assignee: AGFA Gevaert
    Inventors: Huub Van Aert, Stefaan Lingier
  • Patent number: 6921146
    Abstract: After purging an inkjet print head, large drops are formed on the nozzle plate of the inkjet printer. In order to provide sufficient wiping before printing, drops are first removed by skimming the print head. A skimmer, such as a wiper of A wiping system, just touches the drops that are drained from the print head.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: July 26, 2005
    Assignee: Agfa-Gevaert
    Inventor: Paul Wouters
  • Publication number: 20050157340
    Abstract: A method for defining a job ticket in a pre-press workflow system. An input channel and a job ticket are defined. The job ticket definition includes the input channel definition.
    Type: Application
    Filed: February 27, 2003
    Publication date: July 21, 2005
    Applicant: AGFA-GEVAERT
    Inventor: Peter Frings
  • Patent number: 6916553
    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: Grant
    Filed: March 21, 2002
    Date of Patent: July 12, 2005
    Assignee: AGFA-Gevaert
    Inventors: Peter Willaert, Tom Cloots, Roger Van den Bogaert
  • Publication number: 20050142506
    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 mesionic 1,2,4-triazolium-3-thiolate compound.
    Type: Application
    Filed: December 8, 2004
    Publication date: June 30, 2005
    Applicant: Agfa-Gevaert
    Inventors: Johan Loccufier, Ingrid Geuens
  • Patent number: 6911081
    Abstract: Optionally doped nanoparticle dispersions of metal chalcogenides are prepared by a precipitation step in aqueous medium, followed by a diafiltration or ultrafiltration step in the presence of a compound capable of preventing agglomeration of said metal chalcogenide nanoparticles.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: June 28, 2005
    Assignee: Agfa-Gevaert N.V.
    Inventor: Hieronymus Andriessen
  • Patent number: 6912065
    Abstract: An apparatus and a method for making a digital color proof of an image on a surface of a receiving substrate, the apparatus including a plurality of application stations for imagewise applying each a specific type of marking particles to the surface of the receiving substrate, the application stations including a first number N1 of first application stations for applying marking particles of a first, dominant color and a second number N2 of one or more second application stations for applying marking particles of a second, non-dominant color, wherein N1 is larger than N2.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: June 28, 2005
    Assignee: Agfa Gevaert
    Inventors: Marc Mahy, Dirk Van Hoof
  • Patent number: 6911291
    Abstract: The invention relates to a recording material having a dimensionally stable, two-dimensional support, preferably an aluminium support, and a negative-working, radiation-sensitive layer which comprises a diazonium salt, a polymeric binder and a sulphobetaine. In addition, the layer may also comprise a polymerizable monomer or oligomer and a photopolymerization initiator. The front of the recording material may be matted or pigmented, and the back may be coated with an organic polymeric material. The sulphobetaine improves the solubility of the diazonium salts in aqueous-alkaline developers without reducing the resistance of the offset printing plates produced from the recording material.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 28, 2005
    Assignee: Agfa-Gevaert
    Inventors: Michael Dörr, Andreas Elsässer
  • Publication number: 20050136363
    Abstract: A 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 five-membered heterocyclic ring compound selected from the group consisting of optionally substituted, optionally annelated 1-thia-2,3-diazole compounds; optionally substituted, optionally annelated 1-thia-2,5-diazole compounds; optionally substituted 1-thia-2,4-diazole compounds; optionally substituted 1-thia-3,4-diazole compounds; optionally substituted thiatriazole compounds; optionally substituted, optionally annelated 1-seleno-2,3-diazole compounds; optionally substituted, optionally annelated 1-seleno-2,5-diazole compounds; optionally substituted 1-seleno-2,4-diazole compounds; optionally substituted 1-seleno-3,4-diazole compounds; and optionally substituted selenotriazole compounds, with the provi
    Type: Application
    Filed: November 30, 2004
    Publication date: June 23, 2005
    Applicant: Agfa-Gevaert
    Inventors: Ingrid Geuens, Johan Loccufier
  • Publication number: 20050136356
    Abstract: A heat-sensitive lithographic printing plate precursor is disclosed which comprises a hydrophilic support and an oleophilic coating thereon which comprises an infrared light-to-heat converter, an alkali-soluble binder and a polymeric developer accelerator. The polymeric developer accelerator is preferably a phenolic formaldehyde resin comprising at least 70 mol % of meta-cresol as recurring unit or at least 40 mol % of monohydroxy benzene cresol as recurring unit. The PDA may also be a phenolic resin which comprises at least 5 mol % of a recurring monomeric unit having at least one phenolic hydroxyl group and at least one alkali solubilising group. The polymeric developer accelerator improves the sensitivity while maintaining a good under-exposure latitude and a good developer resistance of the printing plate.
    Type: Application
    Filed: April 29, 2004
    Publication date: June 23, 2005
    Applicant: AGFA-GEVAERT
    Inventors: Marc Van Damme, Huub Van Aert
  • Publication number: 20050136355
    Abstract: According to the present invention there is provided a positive-working lithographic printing plate precursor which comprises on a support having a hydrophilic surface or which is provided with a hydrophilic layer, an oleophilic coating comprising an infrared absorbing agent, an alkali-soluble polymeric binder and a polysiloxane which comprises at least one carboxylic acid group or a salt thereof. The disclosed printing plate precursor has an improved sensitivity and at the same time a high under exposure latitude and a high developer resistance.
    Type: Application
    Filed: April 29, 2004
    Publication date: June 23, 2005
    Applicant: AGFA-GEVAERT
    Inventors: Huub Van Aert, Bert Groenendaal, Marc Van Damme