Antifraud Or Antitampering Patents (Class 430/10)
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Publication number: 20030124451Abstract: A method and apparatus for producing identification (ID) cards using a photosensitive imaging system employing microcapsules is described. In accordance with one aspect of the invention, ID cards are produced by translating an image containing identifying indicia into a latent image on an appropriate photosensitive donor sheet, pressure developing the latent image, forming a full color print of the image on a developer sheet, laminating an ID card substrate in registration with the image to the developer sheet and die cutting the laminated article to produce an ID card. Self-contained imaging systems can also be used to produce identification cards. The image preferably includes unique information useful in identifying the card holder such as a photograph, fingerprint, signature, description, name, etc. The identifying indicia may be combined with non-variable information including background printing, card issuer data, logos, security features, etc.Type: ApplicationFiled: November 7, 2002Publication date: July 3, 2003Inventors: Joseph C. Camillus, Alexander Y. Polykarpov, Ibrahim Katampe
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Patent number: 6576155Abstract: A fluorescent ink composition comprising functionalized fluorescent nanocrystals, an aqueous-based ink carrier comprising water or a water-based solution, and a binder.Type: GrantFiled: January 5, 2001Date of Patent: June 10, 2003Assignee: Biocrystal, Ltd.Inventor: Emilio Barbera-Guillem
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Patent number: 6552102Abstract: Described are chiral liquid crystalline polymer materials and polymerizable compounds used for preparing them. The polymer materials can serve as a carrier material or are coated onto a carrier material. Also described are methods of making such materials and using them to make pigment flakes used in paints, printing inks, spray paints, cosmetic products, colored plastics, optical elements and security applications.Type: GrantFiled: July 3, 2001Date of Patent: April 22, 2003Assignee: Merck Patent Gesellschaft mit beschränkter HaftungInventors: Eike Poetsch, Gerhard Pfaff, Matthias Kuntz, Stephan Derow, David Coates
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Publication number: 20030064302Abstract: Improved processes and products for laser thermal imaging are described. These improved processes and products utlilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.Type: ApplicationFiled: July 3, 2002Publication date: April 3, 2003Inventors: Jonathan V. Caspar, Harvey Walter Taylor, Gregory C. Weed, Rolf S. Gabrielsen
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Publication number: 20030054267Abstract: A self-developing diffusion transfer photographic film unit which includes a latent image which becomes visible upon photographic processing of the film unit. The latent image is formed with a chemical compound such as an indicator dye and the visible image formed from the latent image as a result of photographic processing may be transient or permanent. Also described are diffusion transfer photographic methods.Type: ApplicationFiled: April 16, 2001Publication date: March 20, 2003Inventors: James A. Foley, Michael P. Filosa, Stephen J. Telfer, John L. Marshall, David P. Waller
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Patent number: 6444377Abstract: The invention relates to improvements in security features in paper and other substrates and in particular to an activatable feature to warn of tampering. The invention further relates to a security feature for a security document comprising at least one activatable layer and at least one visually apparent masking layer, said at least one activatable layer comprising a composition which is generally non-mobile but which becomes mobile when wetted with a liquid, said composition further including at least one detectable component, in which under dry conditions said at least one masking layer wholly covers the activatable layer and renders it non-detectable.Type: GrantFiled: December 29, 1999Date of Patent: September 3, 2002Assignee: De La Rue International Ltd.Inventors: Richard Bryan Jotcham, Gerald Sidney Payne
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Patent number: 6432602Abstract: A transfer printing process is provided which both uses conventional equipment, and which can be used to add second level printing to an existing document such as a passport. All of the information to be applied in a second level printing procedure to a base sheet is assembled as a complete image. The image is printed in reverse, as a stable mirror image, onto the coated surface of a release paper by a conventional laser printer. The release paper carrying the reversed image and the base sheet are then placed into a heated press, with the image adjacent the base sheet. By the use of heat and pressure the image is transferred from the release paper onto the base sheet. The release paper is then removed, leaving the second level printed image on the base sheet.Type: GrantFiled: June 25, 1999Date of Patent: August 13, 2002Assignee: Ait Advanced Information Technologies CorporationInventors: Gary van Beek, Randall Hayman, Alan Boate
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Publication number: 20020102499Abstract: An optically readable media (10) has an information-encoding layer (16) and at least one color-forming layer (12) that embodies an optical readout-limiting mechanism. In a first embodiment the at least one color-forming layer contains an additive that does not interfere with the optical readability of the media for a duration of a readout period. The additive, upon exposure to a source of optical radiation that is suitable for reversing the color-forming layer from an optical readout inhibiting state to an optical readout enabling state, undergoes a transformation that maintains the color-forming layer in the optical readout inhibiting state. More specifically, exposure to the source causes the color-forming layer to photobleach and the additive to oxidize, where the oxidation of the additive permanently inhibits the optical readability of the media. The additive may be a leuco dye.Type: ApplicationFiled: December 10, 2001Publication date: August 1, 2002Inventor: Marianne Krieg-Kowald
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Patent number: 6413687Abstract: A transfer foil for image transfer comprising a support, a releasing layer and a component layer is disclosed. The releasing layer contains inorganic or organic fine particles and 1<(average particle diameter of the inorganic or organic fine particle in releasing layer/thickness of releasing layer)×100<400.Type: GrantFiled: November 2, 2000Date of Patent: July 2, 2002Assignee: Konica CorporationInventors: Ryoji Hattori, Shigehiro Kitamura, Hideki Takahashi, Seiji Hidaka
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Patent number: 6396927Abstract: A counterfeit-resistant document comprises a contrasting layer and a dynamic camouflaging layer. The contrasting layer is highly contrastive and includes a latent message that can be reproduced over a broad range of copy device control settings. The dynamic camouflaging layer is applied over the contrasting layer to suppress the latent message. The visual density of the dynamic camouflaging layer, which comprises a camouflage pattern that is printed in thermochromic ink, inversely varies with temperature. In this manner, the dynamic camouflaging layer is inactivated at room temperatures so that the latent message is suppressed on the original document, and activated at scanning temperatures so that the latent message is exhibited on a reproduction of the original document.Type: GrantFiled: March 23, 1998Date of Patent: May 28, 2002Assignee: Verify First Technologies, Inc.Inventor: George K. Phillips
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Patent number: 6372394Abstract: A method of marking or forming a transparent window in an article 6, such as a security document, is provided in which areas of opacifying layers of printed ink 8, 10 on opposite surfaces of a polymeric film or substrate 12 are irradiated by laser radiation 4 of a selected wavelength. The opacifying layers 8, 10 have greater absorption characteristics for the laser radiation than the film or substrate 12 which is substantially transparent to the selected wavelength of the laser radiation so that after ablation of the area of printed matter 8 on one surface, the radiation passes through the substrate 12 substantially unaffected to ablate the area of printed matter 10 on the opposite surface. In the resultant article, the markings or windows formed by the areas of printing removed from each surface of the substrate 12 are in register, and provide a deterrent against counterfeiting.Type: GrantFiled: September 17, 1999Date of Patent: April 16, 2002Assignee: Securency Pty LtdInventor: Paul Zientek
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Publication number: 20020022187Abstract: Improved processes and products for laser thermal imaging are described. These improved processes and products utlilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding.Type: ApplicationFiled: July 31, 2001Publication date: February 21, 2002Inventors: Jonathan V. Caspar, Harvey Walter Taylor, Gregory C. Weed, Rolf S. Gabrielsen
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Patent number: 6280891Abstract: Methods and adhesive labels useful in marking products or documents by applying these to substrates. A mark such as a barcode, photograph or characters are formed directly on the substrate and the adhesive label is applied over it. The adhesive label includes a concealing film layer which is transparent to a first wavelength outside the visible region, a diffractive optical mark with a transparent reflective layer and an adhesive layer. The first wavelength may be infrared allowing the underlying mark to be read by an IR laser. The adhesive labels are formed as to allow them to be continuously separated from a temporary detachment layer, thereby exposing the adhesive layer, and affixed to the document.Type: GrantFiled: August 4, 1998Date of Patent: August 28, 2001Assignee: Hologram Industries S.A.Inventors: Francoise Daniel, Hugues Souparis
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Patent number: 6221545Abstract: An adhesive composition that includes the reaction product of (a) a polyester-based polyurethane; (b) an epoxy resin; (c) an epoxy-functional silane; and (d) an isocyanate-functional compound, and multilayer laminates in which this adhesive composition is used to bond two polymeric substrates together where at least one of the substrates has an ink-bearing surface.Type: GrantFiled: September 9, 1999Date of Patent: April 24, 2001Assignee: Imation Corp.Inventors: Bao Tran, Minyu Li, Eric D. Morrison, Claire A. Jalbert, Jai Venkateson, James A. Baker, Gay L. Herman
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Patent number: 6187129Abstract: A cutable topcoat composition and apparatus useful for preparing stable data carrying devices, such as multi-layered laminates, and methods for preparing and using the composition. The composition includes a polymerizable composition and a polymeric binder. The polymerizable composition includes hard and flexible polymerizable subunits in a ratio that optimizes flexibility while retaining good adhesion and plasticizer resistance. In a preferred embodiment, a polymerization initiator is also included in the composition. Optionally, a chain transfer agent may also be added to the composition. The composition is substantially plasticizer free. The methods of using the composition include incorporating the composition into a topcoat film useful for storing the topcoat composition prior to use in preparing data-carrying devices, such as cards.Type: GrantFiled: August 11, 1999Date of Patent: February 13, 2001Assignee: DataCard CorporationInventors: Utpal R. Vaidya, Felix P. Shvartsman, Robert Sells, Bryan L. Baab
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Patent number: 6171734Abstract: A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a random pattern from selected geometric shapes. Information, such as alphanumeric indicia or graphics, is printed on the stochastic screen to thus form a reflective diffraction device which is printable in a conventional manner while inhibiting reproduction of the printed information by conventional techniques, including black and white and color photo-reproduction and facsimile machines. The partially transparent black stochastic screen forms a diffraction grating on the metalized layer so that when illuminated from the light source of either a specular or diffuse illumination-type photocopier, random interference patterns of light occur at the interface of the metalized surface and the stochastic screen.Type: GrantFiled: November 2, 1998Date of Patent: January 9, 2001Assignee: Graphic Arts Technical FoundationInventors: Richard D. Warner, John T. Lind
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Patent number: 6127050Abstract: An archival medium, such as a compact disc, is made of a metal such as aluminum which is mechanically gained with particulate material under conditions that embed particulate material into the surface of the medium and visibly imageable by selective exposure to infrared laser radiation. A mechanically grained aluminum medium can also be anodically oxidized under conditions that do not impair the ability of the substrate to be laser imaged. The archival medium can be coated with opaque and transparent polymer coatings before or after imaging for security and/or protection. The coating can be a laser ablatable coating to provide a tamper-proof medium.Type: GrantFiled: May 15, 1998Date of Patent: October 3, 2000Inventors: Howard A. Fromson, William J. Rozell
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Patent number: 6033832Abstract: A process for the production of a photographic image, in particular an ID card, using a color photographic silver halide material on a reflective support having a zone I in which information is recorded in the form of a colored image and a zone II in which data readable by infra-red light are recorded, comprising the following processing steps:a) exposure,b) development with a color developer,c) treatment with H.sub.2 O.sub.2 or a compound releasing H.sub.2 O.sub.2,d) fixing without prior or concomitant bleaching,e) washing or stabilizing andf) drying,in which steps (b) and (c) may be combined to a single step, results in a clear color image as well as a silver image which is reliably legible under IR light if steps (a) and (b) are carried out in such a manner that the silver maximum density in zone II after processing is at least 0.35, preferably not less than 0.5, measured under reflection at 850 nm, and the silver maximum density in zone I after processing is at most 0.Type: GrantFiled: July 20, 1992Date of Patent: March 7, 2000Assignee: Agfa-Gevaert N.V.Inventor: Kaspar Wingender
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Patent number: 6001516Abstract: A color-negative photographic print medium for restricting the copying of an image in the medium utilizing a pattern of removable color-subtractive microdots depth-wise positioned anywhere within a transparent protective overcoat and a support layer which supports at least one image-forming layer is disclosed. The microdots are undetectable by the unaided eye, but detectable by copying machines programmed to prevent copying when microdots are detected.Type: GrantFiled: June 12, 1997Date of Patent: December 14, 1999Assignee: Eastman Kodak CompanyInventor: John Gasper
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Patent number: 5991078Abstract: A display medium employing a diffraction grating to define and represent a display pattern by the contour thereof, which enables the display pattern to move smoothly as the visual point moves and which allows the display pattern to move in various ways and is easy to produce. A display pattern ("DNP"), e.g., a character, an image, etc., is defined and displayed by the outer or inner contour of a diffraction grating (A or B) composed of a group of smooth curves, or a diffraction grating composed of a group of partial straight-line diffraction gratings that form polygonal lines linearly approximating smooth curves. Accordingly, as the visual point is moved relative to the display medium, a position that looks bright by diffraction moves smoothly and variously. If the display medium is illuminated by white light, the region that looks bright becomes a rainbow-colored region. Accordingly, the display pattern becomes not only readily recognizable but also interesting to view.Type: GrantFiled: June 10, 1997Date of Patent: November 23, 1999Assignee: Dai Nippon Printing Co., Ltd.Inventors: Shoko Yoshitake, Mitsuo Okabe
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Patent number: 5981113Abstract: Radiation curable ink compositions and coating compositions contain an aliphatic (meth)acrylate functional macromonomer, a reactive acrylate monomer, and a photoinitiator. Ink compositions also contain an effective amount of a colorant or pigment. These inks, when cured by exposure to actinic radiation, have excellent durability, weatherability, and adhesion to acrylate substrates such as polymethylmethacrylate.Type: GrantFiled: December 17, 1996Date of Patent: November 9, 1999Assignee: 3M Innovative Properties CompanyInventor: Paul D. Christian
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Patent number: 5972546Abstract: The application of Lippmann photographs as a unique security device on security documents, such as, e.g. identity cards, passports, credit cards is presented. The recording of such photographs requires a special type of photosensitive film layer in contact with a reflecting layer. Panchromatic photopolymer materials can be used and, after being recorded and processed, laminated to security documents. Lippmann photographs are almost impossible to copy and, certainly, cannot be copied by conventional photography or color copying machines.Type: GrantFiled: January 22, 1998Date of Patent: October 26, 1999Assignee: Photics CorporationInventor: Hans I. Bjelkhagen
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Patent number: 5958528Abstract: The invention relates to a data carrier, such as an identity card, credit card or the like, with at least one plastic layer having first diffusely light-scattering properties at least in a partial area due to its surface quality. In this area information is provided by means of a laser in the form of local changes of surface quality which have second diffusely light-scattering properties so that the information is readable at least at a certain viewing angle but has no color contrast with its surroundings.Type: GrantFiled: December 19, 1995Date of Patent: September 28, 1999Inventor: Otto Bernecker
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Patent number: 5919730Abstract: A media for restricting the copying of a document utilizing one or more microdots that are embedded in said document for providing a non-visual, but machine detectable mark or marks. The detected means for detecting the presence of one or more microdots in said document inhibits a copy machine from copying the document.Type: GrantFiled: February 8, 1996Date of Patent: July 6, 1999Assignee: Eastman Kodak CompanyInventors: John Gasper, James Edward Sutton
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Patent number: 5856266Abstract: A media for restricting the copying of a document utilizing one or more microdots that are embedded in said document for providing a non-visual, but machine detectable mark or marks. The detected means for detecting the presence of one or more microdots in said document inhibits a copy machine from copying the document.Type: GrantFiled: May 9, 1997Date of Patent: January 5, 1999Assignee: Eastman Kodak CompanyInventors: John Gasper, James Edward Sutton
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Patent number: 5856070Abstract: An authenticating pattern 20 for valuable objects is fabricated as an integrated structure of a substrate layer 21 and a transparent overcoat layer 22 with a viewable interface therebetween containing a light diffracting structure 10. Unique parameters are randomly defined in the light diffracting structure by anisotropic process steps not under full control of the producer during the manufacturing of the diffracting structure to prevent copying or creating an exact replica thereof. The resultant uniquely coloured authenticating pattern can be verified by simple observation with the naked eye which is a prerequisite for ubiquitous verification.Type: GrantFiled: January 10, 1997Date of Patent: January 5, 1999Assignee: International Business Machines CorporationInventor: Hans E. Korth
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Patent number: 5830561Abstract: A card, such as an ID card, is composed of the following layers: at least one core layer containing at least one first core component layer of a first composition, consisting of a polypropylene block polymer and/or polyropylene homopolymer or a mixture thereof and a second core component layer provided on at least the exterior face to which an outer layer has been laminated and is made of a second composition, consisting of unoriented polypropylene or an unoriented copolymer; at least one outer layer containing at least one outer component layer made of a third composition of polypropylene homopolymer and a second outer component layer provided on at least the exterior face with which the outer layer is laminated to the core layer and which contains a fourth composition of unoriented-polypropylene or an unoriented copolymer. The first and second core component and outer component layers are solidly connected with each other by coextrusion.Type: GrantFiled: October 11, 1995Date of Patent: November 3, 1998Inventor: Hans Hagner
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Patent number: 5830609Abstract: A paper substrate is laminated with a metalized layer forming a mirrored surface. A partially transparent black diffraction grating is applied by stochastic screening to the mirrored surface. The diffraction grating forms a frequency modulated pattern from selected geometric shapes. Information, such as alphanumeric indicia or graphics, is printed on the stochastic screen to thus form a reflective diffraction device which is printable in a conventional manner while inhibiting reproduction of the printed information by conventional techniques, including black and white and color photo-reproduction and facsimile machines. The partially transparent black stochastic screen forms a diffraction grating on the metalized layer so that when illuminated from the light source of either a specular or diffuse illumination-type photocopier, random interference patterns of light occur at the interface of the metalized surface and the stochastic screen.Type: GrantFiled: May 10, 1996Date of Patent: November 3, 1998Assignee: Graphic Arts Technical FoundationInventors: Richard D. Warner, John T. Lind
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Patent number: 5672410Abstract: A process for preparing embossed, finely-divided, thin, bright-metal particles which process comprises forming an embossed release surface to at least one side of a carrier sheet, depositing a metal film onto the release surface so that the metal film conforms to the embossed surface, solubilizing the release surface, removing the metal film from the carrier sheet, and breaking the thin metal film into embossed particles having an average diameter of between 25 to 50 microns. The film may also take the form of an optical stack.Type: GrantFiled: February 9, 1993Date of Patent: September 30, 1997Assignee: Avery Dennison CorporationInventors: Richard G. Miekka, Dennis R. Benoit, Richard M. Thomas, James P. Rettker, Karl Josephy
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Patent number: 5565276Abstract: Anti-falsification paper characterized in that thin fragments having brightness, which are obtained by fragmenting nacreous pigment coated paper coated with a nacreous pigment coating solution mainly comprising a nacreous pigment and a binder insoluble in cold water but soluble in hot water, are allowed to exist near the surface of a substrate sheet. Even when falsification is attempted by reproduction using a color copying machine, the colors of the thin fragments having brightness, which are mixed in paper, cannot be reproduced. Therefore, a genuine (original) can be easily distinguished from a forgery (copy). The thin fragments are firmly bonded to paper by the action of the binder, and fall-off of the thin fragments does not occur at the time of printing. Even when anti-falsification paper becomes spoilage or waste paper, thin fragment with brightness does not adversely affect recovery of the pulp.Type: GrantFiled: October 11, 1995Date of Patent: October 15, 1996Assignee: Tokushu Paper Mfg. Co., Ltd.Inventors: Toru Murakami, Yoshiaki Ishii, Shin-ichi Akahori, Kenji Noda
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Patent number: 5534372Abstract: An IC card in which an IC chip is incorporated between a first and second base boards, comprises an image receiving layer on which an ink image is transferred by a thermal transfer method and a cushion layer provided between the IC chip and the image receiving layer so that the cushion layer smooths irregularity caused by the IC chip and improves a flatness of the image receiving layer.Type: GrantFiled: July 25, 1994Date of Patent: July 9, 1996Assignee: Konica CorporationInventors: Kunihiro Koshizuka, Shigehiro Kitamura, Masataka Takimoto, Tomonori Kawamura
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Patent number: 5525400Abstract: There are disclosed laminated structures which are bonded with a UV-/VIS-curable composition and which consist of a main foil A) which is substantially impervious to light, at least one interlayer B) which is substantially impervious to light in the absence of the adhesive and which carries on the side with its back to the main foil information in the form of a color pattern, and of a substantially light-permeable covering foil C). The laminated structures can be used as identity cards.Type: GrantFiled: October 23, 1991Date of Patent: June 11, 1996Assignee: Ciba-Geigy CorporationInventors: Aloysius H. Manser, Jacques Francois
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Patent number: 5468581Abstract: A security document with a design (e.g. a generally oval seal) is constructed in such a way that the design is full value halftone, such as produced from juxtaposed line screens having a frequency between 100-133 lines per inch. Negative and positive masks having an image (e.g. arabic numeral, letter, or other symbol), are used with the screens to produce a printing plate. A document is printed with the printing plate in a conventional lithographic process, and there is an overprinting on the design (at least that portion having the image) with a white opaque ink or overprint varnish to produce an image. The image is not readily visible to the naked human eye when viewed generally perpendicular to the plane of the document, but is readily visible by the naked human eye when the document is tilted so that it is viewed distinctly non-perpendicular to the plane of the document.Type: GrantFiled: November 4, 1993Date of Patent: November 21, 1995Assignee: Moore Business Forms, Inc.Inventors: Robert P. Coe, Theodore Blend
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Patent number: 5462823Abstract: Disclosed is a magnetic recording element comprising a support having coated on at least one major surface thereof a layer of a magnetic recording medium and a photosensitive layer which may be separate from or integral with the magnetic recording layer and which contains an infrared absorbing dye or its precursors. Information can be imparted to the photosensitive layer by imagewise exposure to actinic radiation which will either promote or inhibit generation or destruction of the infrared absorbing dye.Type: GrantFiled: November 15, 1993Date of Patent: October 31, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Christopher M. Evans, Mark R. Buckingham, Colin F. Norman
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Patent number: 5405726Abstract: A sheet of paper, plastic or the like on which an image has been formed using a toner that is photochemically decolorizable by absorption of near infrared rays is illuminated with near infrared rays under the state wherein the image is heated to a temperature equal to or higher than the glass-transition temperature of a binding resin of the toner. The color of the toner can thereby be easily and rapidly eliminated. This enables the reuse of the sheet to be realized easily and at a low cost.Type: GrantFiled: November 10, 1992Date of Patent: April 11, 1995Assignees: Bando Chemical Industries. Ltd., Showa Denko Kabushiki KaishaInventors: Yuki Abe, Rikuzou Kouzuki, Masakazu Okamoto, Yasunori Mikata, Masatsugu Tabata, Shigeki Inoue, Sadao Tanimoto, Yoshihiro Uchimoto, Katsumi Murofushi, Yoshikazu Hosoda
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Patent number: 5385803Abstract: A process for the authentication of documents which comprises generating developed documents in an electophotographic apparatus, or in a laser printer with an encapsulated toner comprised of a core comprised of polymer, an optional pigment, and an infrared emitting component, and thereover a polymeric shell; and subjecting the document to an infrared reader whereby the infrared component is detected spectroscopically.Type: GrantFiled: January 4, 1993Date of Patent: January 31, 1995Assignee: Xerox CorporationInventors: James M. Duff, H. Bruce Goodbrand, David L. Hecht
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Patent number: 5368334Abstract: A security document is produced from a paper substrate having invisible hydrophobic toner blended into the paper. The clear toner is produced by milling and classifying a polyester resin, mixing it with silica flowing agent, and then electrostatically imaging the toner onto the paper substrate, as a spot that can be overprinted, or preferably as indicia that is not visible to the naked eye or color copiers. An infra-red absorbing or UV responsive dye may be added to the toner so that it is visible under infra-red/ultraviolet light respectively, or without that dye it is not visible when eliminated by light of any wavelength. When applied to the paper the toner is snow white, but after infra-red heat fusing it blends into the paper and is substantially invisible.Type: GrantFiled: June 10, 1993Date of Patent: November 29, 1994Assignee: Moore Business Forms, Inc.Inventors: Orrin D. Christy, John E. Pickett, Leo Swanson, Mark A. Matheis, Marc Cousoulis
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Patent number: 5366833Abstract: A method for making security documents using an electro photographic printer, particularly a photocopier or laser printer, includes the step of exposing the printed image to an accelerator, in liquid or vapour form. Under the influence of the accelerator, a second dye contained in the toner, used in producing the image, migrates into the document, thereby producing a second image in the paper in registration with the printed image. The process is applicable to images created on paper, security paper, and synthetic papers.Type: GrantFiled: March 22, 1993Date of Patent: November 22, 1994Inventors: Joel F. Shaw, Gary A. Van Beek
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Patent number: 5322723Abstract: The disclosure relates to a tamper-proof transparency mount which includes a zipper tab permitting easy access and removal of the transparency from its mount when sealed without doing any damage to the transparency under authorized conditions. Several embodiments are disclosed which provide different locations as well as different style tabs. The transparency mount provides an indication of unauthorized entry and also easy access for authorized entry to the transparency.Type: GrantFiled: August 9, 1993Date of Patent: June 21, 1994Inventor: Earl H. Bickett
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Patent number: 5223360Abstract: 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.Type: GrantFiled: November 15, 1990Date of Patent: June 29, 1993Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Constanze Prengel, Klaus-Dieter Franz, Hartmut Hartner, Manfred Kieser, Axel von Daacke, Klaus Bernhardt
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Patent number: 5208110Abstract: A security card comprises a data-carrying sheet having a gelatin layer thereon and a transparent polymeric film having a gelatin layer thereon, said sheet and said film being bonded together by an adhesive composition polymerized between and in contact with the gelatin layers, the adhesive composition comprising a carboxylic acid having at least one polymerizable acrylic group.Type: GrantFiled: June 19, 1989Date of Patent: May 4, 1993Assignee: Ciba-Geigy CorporationInventors: Terence J. Smith, Edward Irving
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Patent number: 5106719Abstract: A system for providing a personal booklet, such as a passport, with a picture of the face and personal data of the bookholder to thereby provide the booklet holder's identity. The system includes entering a picture of the face of an applicant, the picture being attached to an application form, as a figure image into an image composing device, entering personal data of the applicant entered in the application form as a character image, providing a composite image of the figure and character images, printing the composite image onto a thermal transfer type photosensitive printing paper, transfering the printed composite image onto an image receiving layer coated on a transparent cover sheet bound in the booklet, and sandwiching the image receiving material layer between a supporting sheet bound in the booklet next to the transparent cover sheet and the transparent cover sheet.Type: GrantFiled: October 24, 1988Date of Patent: April 21, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuji Oshikoshi, Yoshimi Suganuma, Hiroshi Hara, Kazuo Shiota, Nobumitsu Takehara, Kiichiro Sakamoto
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Patent number: 5098806Abstract: Rapid changes in absorption are made within the volume of a photosensitive transparent member that absorbs incident radiation to prevent the photocopy of a document, the original transparency being restored after discontinuance of the incident radiation.Type: GrantFiled: September 22, 1989Date of Patent: March 24, 1992Assignee: Board of Regents, The University of Texas SystemInventor: Jean J. Robillard
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Patent number: 5087507Abstract: An article with at least a portion carrying symbols representing information to be protected against photocopying is formed by a carrier, a continuous layer covering the portion of the carrier and forming a background thereon, and a mainly discontinuous layer applied on the continuous layer and forming the symbols against the background. One of the layers is an iridescent layer of a color that copies dark and the other of the layers has a dark color. Thus photocopying gives an image without distinction between the symbols and the background.Type: GrantFiled: November 8, 1988Date of Patent: February 11, 1992Assignee: Lipatec EtablissementInventor: Paul Heinzer
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Patent number: 5085918Abstract: A weather resistant sign and a method of printing a sign including the steps of providing a sign component and an image definition, applying dry toner powder to surface portions corresponding to the image definition, and fusing the applied toner. Preferably, the fused toner is protected from weather by a transparent protective layer. A toner composition and a computer program for printing are also disclosed.Type: GrantFiled: May 15, 1990Date of Patent: February 4, 1992Assignee: Minnesota Mining and Manufacturing CompanyInventors: J. Sundar Rajan, Vincent J. Mako
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Patent number: 5021318Abstract: Disclosed is a process for forming secure images which comprises electrostatically charging an imaging member; imagewise exposing the charged member, thereby forming a latent image on the member; developing the latent image with a liquid developer comprising a liquid medium, a charge control additive, and toner particles comprising a colorant and a polymeric material; allowing the developed image to dry on the imaging member; contacting the portion of the imaging member with the dry developed image with a substantially transparent sheet having an adhesive material on the surface thereof in contact with the imaging member, thereby transferring the developed image from the imaging member to the substantially transparent sheet; contacting the adhesive surface of the substantially transparent sheet with the developed image with a paper sheet having a polymeric coating on the surface that is in contact with the substantially transparent sheet; and applying heat and pressure to the substantially transparent sheet aType: GrantFiled: July 28, 1989Date of Patent: June 4, 1991Assignee: Xerox CorporationInventors: James D. Mayo, Stephen Drappel, James M. Duff, Melvin D. Croucher, John M. Lennon
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Patent number: 4992353Abstract: An image-receiving element, adapted to the production of a diffusion transfer photograph adhesively bondable to a substrate material, comprises first and second separable sheet-like support members adhesively bonded to one another by a layer of adhesive therebetween, the adhesivity of the first sheet-like support to the adhesive layer being less than the adhesivity of the second sheet-like support to the adhesive and less than the cohesivity of the adhesive layer. The second sheet-like support member carries on the side thereof opposed from the adhesive layer at least a water-permeable and dyeable image-receiving layer which receives a photographic dye image by diffusion transfer processing.Type: GrantFiled: March 27, 1989Date of Patent: February 12, 1991Assignee: Polaroid CorporationInventors: John M. Rodakis, Walter Bleszinski, Jr.
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Patent number: 4992347Abstract: A marking comprises a layer, preferably of film-forming material, which contains a photochromic compound. The photochromic compound is capable of changing color when exposed to uv light, but can be converted to a permanently non-photochromic compound, preferably by overexposure to uv light. An image is formed in the layer by converting the photochromic compound to a permanently non-photochromic compound in one or more selected areas. When the layer is subsequently viewed under uv light a colorless image of non-photochromic compound can be seen on a background of colored photochromic compound.Type: GrantFiled: January 11, 1990Date of Patent: February 12, 1991Assignee: Courtaulds PLCInventors: Michael Hawkins, Arthur G. Bowyer
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Patent number: 4944533Abstract: There is provided a process for preparing a film positive sheet for a forging-by-copying-proof print in which a first background image sheet is placed on a first latent image sheet, an unexposed film having a photosensitive membrane on the undersurface is placed on the background sheet to provide a primary three-layer film structure, the three-layer film structure is illuminated to partially expose the film, the first latent image and background sheets are replaced by second latent image and second background sheets, respectively, to provide a secondary three-layer film structure, the secondary three-layer film structure is illuminated to completely expose the partially exposed film and the second latent image and background sheets are removed from the secondary three-layer structure to thereby provide a film positive sheet for a forging-by-copying-proof print. Then, a forging-by-copying-proof print is prepared from the film positive sheet by a printing method such as offset or relief printing.Type: GrantFiled: October 18, 1988Date of Patent: July 31, 1990Assignee: Hosokawa Printing Co., Ltd.Inventor: Shohei Tsuchiya
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Patent number: 4908286Abstract: Image-receiving material for use in diffusion transfer reversal processing comprising a polyvinyl chloride resin support coated with a hydrophilic waterpermeable layer comprising a proteinaceous colloid and a water-dispersible ionogenic polyester-polyurethane wherein isocyanate groups still present in its structure have reacted with an ionogenic compound containing at least one active hydrogen atom and a carboxylate or sulphonate salt group. This material is useful for the production of tamper proof laminates for identification purposes.Type: GrantFiled: May 3, 1989Date of Patent: March 13, 1990Assignee: Agfa-Gevaert, N.V.Inventors: Ludovicus H. Vervloet, Willy P. De Smedt, Leon L. Vermeulen, Piet Kok