Continuous Tone Or Collotype Patents (Class 430/305)
  • Patent number: 7968173
    Abstract: The present invention relates to printable security paper that includes a region capable of receiving printed indicia on the front side and on the reverse side which are observable in reflected light and form an image observable in transmitted light, as security element protecting against two-sided copying, characterized in that such region is a screened region having an average overall opacity less than the opacity of the vellum part of the rest of the paper, said screened region being made up from alternations of vellum miniregions, having an approximately constant thickness equal to that of the vellum part of the rest of the paper, and of miniregions of reduced opacity because of their smaller thickness compared with the vellum miniregions. The invention also relates to the security document obtained with this paper.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 28, 2011
    Assignee: Arjowiggins Security
    Inventors: Nathalie Vast, Yvan Thierry, Stephane Mallol
  • Patent number: 7883762
    Abstract: The invention concerns a security document comprising, as security element against recto/verso copying, indicia present on both sides and capable of being viewed under reflected lighting and forming an image capable of being viewed under transmitted light. The invention is characterized in that said indicia comprise lines and form said image with 3D effect.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: February 8, 2011
    Assignee: Arjowiggins Security
    Inventor: Pierre Doublet
  • Patent number: 6521395
    Abstract: This invention relates to a silver halide photographic element containing a phenolic infrared dye-forming coupler bearing in the 2-position either a benzamido group substituted with a sulfonyl group or a heterocyclic carbonamido group, and bearing in the 5-position a non-carbonamido group, which element is useful for incorporating and recovering metadata, such as sound data, into a photographic image and is specifically concerned with the incorporation of non-visually perceptible sound information into a photograph.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: February 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Gary M. Russo
  • Publication number: 20020155390
    Abstract: A method for manufacturing a black matrix of a plasma display panel includes the steps of forming transparent electrodes of upper electrode patterns and black matrix patterns on an upper substrate, and depositing a predetermined metal material on the transparent electrodes of the black matrix patterns. In the method for manufacturing a black matrix of a plasma display panel, it is possible to manufacture the black matrix without performing a separate baking process. In addition, since it is possible to pattern the upper electrode and the black matrix at the same time, the manufacturing process steps are simplified and the manufacturing cost is saved.
    Type: Application
    Filed: June 21, 2002
    Publication date: October 24, 2002
    Applicant: LG Electronics Inc.
    Inventor: Jeong Jun Kim
  • Patent number: 6376138
    Abstract: Growth and clustering of halftone dots is a drawback in the reproduction of halftoned continuous tone images on prior art recording materials. Certain thermographic materials show a local microdot shrink effect called negative cross-talk upon neighboring microdots when exposing a microdot. Exposing these materials according to the frequency modulated halftone data of an image results in better tone rendering and lower noise due to lower dot clustering or negative cross-talk characteristics.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: April 23, 2002
    Assignee: AGFA-Gevaert
    Inventors: Bart Horsten, Paul Delabastita, Jacobus Bosschaerts, Luc Schellekens
  • Patent number: 6096494
    Abstract: A color photographic element includes a support, a silver halide emulsion layer, and associated therewith a phenolic dye-forming coupler having the formula ##STR1## wherein R.sup.1 represents hydrogen, a straight or branched chain alkyl group having 1 to about 20 carbon atoms, a cycloalkyl group having about 3 to 8 carbon atoms in the ring, or an aryl group having 6 to about 20 carbon atoms;R.sup.2 represents hydrogen or a substituent;R.sup.3 represents hydrogen, halogen, or alkyl, cycloalkyl or aryl groups as defined for R.sup.1 ;R.sup.4 represents a fluorosubstituted alkyl group having 1 to about 20 carbon atoms, a fluorosubstituted cycloalkyl group having about 3 to 8 carbon atoms, or a fluorosubstituted aryl group having 6 to about 20 carbon atoms;R.sup.5 represents hydrogen or a substituent; X represents hydrogen or a coupling-off group; Z represents carbon atoms or hetero atoms necessary to complete a 5-,6-, or 7-membered ring; m is 0 to 3; and n is 0 to 4.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 1, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ping-Wah Tang, Margaret D. Steele
  • Patent number: 6071655
    Abstract: The present invention pertains to a new type of continuous-tone, photographic print comprising a continuous-tone, photographic relief on a substrate, filled with translucent glaze in such a manner that the thickness of said glaze is determined at any given location on the surface of the substrate by the depth of said relief at that location, and the thickness of said glaze determines the optical density of said print at that same location. Hence, it provides a type of continuous-tone, photographic print that can be formed on the surface of any suitable material, that is intrinsic to the surface of said material and as durable and as colorfast as the materials of which it is formed.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: June 6, 2000
    Inventor: Keith Adams Faulconer
  • Patent number: 5783356
    Abstract: A method for generating a screened reproduction of a contone image comprises the steps of screening the contone image to obtain screened data representative for tones of the contone image and suitable for driving exposure of microdots on a radiation sensitive imaging element; exposing the microdots according to the screened data by at least one set or plurality (p) of radiation beams (b), characterized in that at a point in time (t) at least two radiation beams of the set of radiation beams impinge on a particular microdot (m) of a scanline (l). In particular is described a method for making a lithographic printing plate comprising the abovementioned steps.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: July 21, 1998
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Jacobus Bosschaerts, Robert Overmeer, Paul Delabastita, Johan Van Hunsel
  • Patent number: 4191569
    Abstract: A positive working radiation sensitive plate is image-wise exposed, developed and desensitized, and dried. Thereafter an oleophilic composition including a solvent capable of softening the image is applied to the plate and the plate is then washed to remove the oleophilic composition from the non-image areas. The image accepts ink readily even when the image-wise exposure is effected using a continuous tone original in the absence of a half-tone screen.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: March 4, 1980
    Assignee: Vickers Limited
    Inventor: Leslie E. Lawson