Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 1 of 14
`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 1 of 14
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`EXHIBIT 16
`EXHIBIT 16
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`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 2 of 14
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`US007161738B2
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`(12)
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`United States Patent
`Disano et al.
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`(10) Patent No.:
`(45) Date of Patent:
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`US 7,161,738 B2
`Jan. 9, 2007
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`(54) SECURE DOCUMENT OF VALUE AND
`METHOD OF MANUFACTURING SAME
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`(75) Inventors: John N. Disano, Ottawa (CA); Omar
`Caporaletti, Mississauga (CA)
`
`(73) Assignee: Agra Vadeko Inc., Oakville (CA)
`(*) Notice:
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 110 days.
`
`(21) Appl. No.: 10/636,786
`(22) Filed:
`Aug. 7, 2003
`65
`Prior Publication Data
`US 2005/OO298OO A1
`Feb. 10, 2005
`•
`ws
`(51) Int. Cl
`Go2B iMIt
`(52) U.S. Cl
`
`(2006.01)
`359,585. 3597586: 283/91
`
`2/1980 Lee ............................. 283.91
`4,186,943 A
`4,869,778 A * 9/1989 Cote .......................... 216,103
`5,093,184 A * 3/1992 Edwards ...........
`... 428, 1951
`5,688,587 A * 11/1997 Burchard et al. ........... 442/330
`6,036,232 A
`3/2000 Kaule et al. .................. 283,85
`2004/0101676 A1* 5/2004 Phillips et al. .............. 428,323
`
`* cited by examiner
`Primary Examiner Arnel C. Lavarias
`74) Attorney, Agent, or Firm—Baker & Daniels LLP
`V, Ag
`
`(57)
`
`ABSTRACT
`
`A secure document value includes a sheet-like Substrate and
`a thin film, optically variable security device on the sub
`p
`y
`y
`strate. The security device includes a carrier and a multilayer
`coating on the carrier. The multilayer coating includes a
`dielectric-metal stack having an exposed reflective layer that
`is tailored after manufacture to include security data propri
`etary to the issuer of the document of value thereby to deter
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`Oa -
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`- - -
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`- - - - - - - - - - - - - - - - - - - - - - - -
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`s
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`s 283f72
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`forgery. Since the security device is tailored after manufac
`
`3597586
`h
`58) Field of Classification S
`(58) Field o yfse2 s 5 85.589.2 83/917 2.
`283/107 109 114 i17 901 902
`S
`lication file f
`s 1
`s
`h hi
`s
`ee application file for complete search history.
`References Cited
`U.S. PATENT DOCUMENTS
`
`(56)
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`ture, the end supplier of the document of value does not need
`to provide the proprietary information to the manufacturer of
`the security device for incorporation therein. This also
`enables the manufacturer of the security device to stockpile
`material until Such time the material must be customized to
`include proprietary data. This results in shorter lead times
`and better response to market demands.
`
`3,858,977 A
`
`1/1975 Baird et al. ................... 356/71
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`27 Claims, 3 Drawing Sheets
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`ZAZAZ
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`DEF-AIRE-EXTRINSIC00000809
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`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 3 of 14
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`U.S. Patent
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`Jan. 9, 2007
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`Sheet 1 of 3
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`US 7,161,738 B2
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`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 4 of 14
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`U.S. Patent
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`Jan. 9, 2007
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`Sheet 2 of 3
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`US 7,161,738 B2
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`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 5 of 14
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`U.S. Patent
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`Jan. 9, 2007
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`Sheet 3 of 3
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`US 7,161,738 B2
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`FG. 3
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`FG. 4
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`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 6 of 14
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`1.
`SECURE DOCUMENT OF VALUE AND
`METHOD OF MANUFACTURING SAME
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`US 7,161,738 B2
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`FIELD OF THE INVENTION
`
`The present invention relates to document security and in
`particular to a secure document of value including a thin
`film, optically variable security device and to a method of
`manufacturing the same.
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`BACKGROUND OF THE INVENTION
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`Marking documents of value Such as banknotes is com
`mon practice to deter forgery and allow counterfeit ban
`15
`knotes to be readily detected. For example, U.S. Pat. No.
`3.858,977 to Baird et al. discloses an optical interference
`filter having an optical interference layer with a known
`characteristic of spectral reflectance and a different known
`characteristic of spectral transmittance, both of which vary
`with the angle of incident light on the interference filter. The
`interference filter is disposed on a banknote substrate over a
`colored portion thereof that is designed to absorb some of
`the light transmitted by the interference filter so that the
`interference filer exhibits a color change with a change in the
`angle of incident light.
`U.S. Pat. No. 4,186,943 to Lee discloses a security device
`for a sheet element such as a banknote. The security device
`includes a thin film, optically variable element Such as a strip
`or thread disposed within the thickness of the sheet element.
`The thin film element is in the form of a dichroic filter
`having a known spectral reflectance and transmittance. The
`sheet element has a pair of Superposed windows between
`which the thin film element extends so as to be visible
`through each window. The dichroic filter includes a trans
`parent Melinex substrate coated with a seven-layer stack of
`alternate high and low refractive index materials. Layers of
`high refractive index are disposed adjacent the sheet element
`and the top of the stack. The layers of high refractive index
`have a thickness equal to 3/4 wavelength and have an index
`of refraction equal to 2.3. The layers of low refractive index
`have a thickness equal to "/4 wavelength and have an index
`of refraction equal to 1.55. This combination yields a thin
`film element that reflects green and transmits in magenta
`when viewed normally.
`Unfortunately, consistently producing seven-layer dich
`roic filters of this nature in large numbers is a very difficult
`task, especially given the very tight color specifications
`required for use in banknotes. As will be appreciated,
`banknotes are produced in extremely large numbers (i.e.
`millions and in fact sometimes billions) and must be iden
`tical in order to avoid public confusion, which makes
`counterfeiting easier. In addition, the fabrication cost asso
`ciated with producing the seven-layer dichroic filters is high,
`translating into a high banknote unit cost.
`An alternative security device for banknotes including a
`metal-dielectric stack has been developed by Agra Vadeko
`Inc. of Oakville, Ontario, Canada, assignee of the present
`invention in collaboration with the Bank of Canada and is
`sold by De La Rue under the name ColorshiftTM. The
`security device is designed for use as a windowed security
`feature incorporated within the banknote. The security
`device exhibits a color change from magenta to green with
`a change in view angle and has been featured in over 4
`billion banknotes worldwide. The metal-dielectric stack
`includes a polyethylene teraphathalate (PET) substrate with
`an Al/SiO/Inconel(R) multilayer coating on the substrate.
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`The aluminum layer is disposed on the PET substrate and is
`demetallized to include images, patterns and/or text.
`Although this security device is highly satisfactory for the
`protection of banknotes, because the aluminum layer is
`sandwiched between the PET substrate and the SiO, layer,
`the aluminum layer must be demetallized before the manu
`facturing process of the security device. This requires the
`end user of the security device i.e. the issuer of the ban
`knotes, to disclose highly sensitive information to the Secu
`rity device manufacturer. In addition, since the aluminum
`layer must be demetallized in a separate process to include
`the images, patterns and/or text before the security device
`can be completed, longer lead times for security device
`manufacturers are required due to the fact that the security
`device manufacturers must wait for the images, patterns
`and/or text to be included on the aluminum layer, which are
`specific to a given customer and banknote denomination.
`This of course makes it virtually impossible for security
`device manufacturers to stockpile material and reduce
`manufacture lead times.
`It is therefore an object of the present invention to provide
`a novel secure document of value including a thin film,
`optically variable security device and to a method of manu
`facturing the same.
`
`SUMMARY OF THE INVENTION
`
`According to one aspect of the present invention there is
`provided a document of value comprising:
`a sheet-like Substrate; and
`a thin film, optically variable security device on said
`Substrate, said security device including a carrier and a
`multilayer coating on said carrier, said multilayer coating
`including a dielectric-metal stack having an exposed reflec
`tive layer that is tailored after manufacture.
`Preferably, the dielectric-metal stack further includes a
`semi-transparent absorber layer disposed on the carrier and
`a dielectric layer disposed on the absorber layer. The
`exposed reflective layer is disposed on the dielectric layer. It
`is also preferred that the reflective layer is tailored to include
`security data in the form of at least one of an image, pattern
`Or text.
`In a preferred embodiment, the reflective layer is formed
`of aluminum and is tailored to include security data in the
`form of at least one of an image, pattern or text via a
`demetallization process. The absorber layer is an Ni/Cr/Fe
`semi-transparent alloy and the dielectric layer is formed of
`SiO.
`In the case of banknotes, a cover layer is bonded to the
`reflective layer after tailoring and prior to incorporation of
`the security device on the banknote to improve handling and
`protect the dielectric-metal stack from wear and/or chemical
`attack. The carrier and cover layer are preferably formed of
`plastic material Such as for example polyethylene ter
`aphathalate (PET).
`The security device is preferably in the form of a thread
`that is woven into a banknote. In this case windows are
`formed in the banknote at one or more locations to expose
`at least a portion of the thread so that its optically variable
`effect is visible when looking at the banknote from different
`angles.
`In accordance with another aspect of the present invention
`there is provided a method of manufacturing a secure
`document of value including a sheet-like Substrate and a thin
`film, optically variable security device incorporated into said
`sheet-like Substrate, said method comprising the steps of:
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`DEF-AIRE-EXTRINSIC00000813
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`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 7 of 14
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`US 7,161,738 B2
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`reference numeral 10. The security device 10 in the pre
`ferred embodiment is in the form of a thread that is designed
`to be woven into the document of value. As can be seen
`security device 10 includes a carrier 12 and a multilayer
`coating 14 on the carrier. Carrier 12 in the preferred embodi
`ment is formed of polyethylene teraphathalate (PET) com
`monly referred to as polyester. Those of skill in the art will
`appreciate, however that other plastic material carriers may
`be used. Multilayer coating 14 is in the form of a metal
`dielectric stack including an absorber layer 16 disposed on
`the carrier 12, a dielectric layer 18 disposed on the absorber
`layer 16 and a reflective layer 20 disposed on the dielectric
`layer 18. In the preferred embodiment, the absorber layer 16
`is a semi-transparent Ni/Cr/Fe alloy commonly referred to as
`Inconel(R). The dielectric layer 18 is formed of silicon
`dioxide (SiO) and the reflective layer 20 is formed of
`aluminum. The thickness of the absorber, dielectric and
`reflective layers 16 to 20 respectively are chosen so that the
`optically variable security device 10 exhibits the desired
`color shift with a change in the angle of incident light. For
`example, a security device having an Inconel(R) absorber
`layer 16 with a thickness of 10 nm, an SiO, dielectric layer
`18 with a thickness of 350 nm and an aluminum reflective
`layer 20 with an optical density of between about 2.0 to 2.5
`and a reflectance greater than 90% at 500 nm exhibits a very
`distinct magenta to green color shift with a change in view
`angle.
`Other suitable materials for the semi-transparent absorber
`layer 16 include chromium, nickel, aluminum, silver, cop
`per, palladium, platinum, titanium, Vanadium, cobalt, iron,
`tin, tungsten, molybdenum, rhodium, niobium, carbon,
`graphite, silicon, germanium and compounds, mixtures or
`alloys thereof. Other suitable materials for the dielectric
`layer 18 include Zinc sulfide, Zinc oxide, Zirconium oxide,
`Zirconiumm dioxide, titanium dioxide, diamond-like carbon,
`indium oxide, indium-tin-oxide, tantalum pentoxide, cerium
`oxide, yttrium oxide, europium oxide, iron oxides, hafnium
`nitride, hafnium carbide, hafnium oxide, lanthanum oxide,
`magnesium oxide, magnesium fluoride, neodymium oxide,
`praseodymium oxide, Samarium oxide, antimony trioxide,
`silicon monoxide, selenium trioxide, tin oxide, tungsten
`trioxide and combinations thereof as well as organic poly
`mer acrylates. Other suitable materials for the reflective
`layer 20 include chromium, nickel, silver, copper, gold,
`palladium, platinum, titanium, Vanadium, cobalt, iron, tin,
`tungsten, molybdenum, rhodium, niobium, carbon, graphite,
`silicon, germanium and compounds, mixtures or alloys
`thereof.
`The security device 10 once manufactured is typically
`sent to a third party, who tailors the security device 10 prior
`to incorporating the security device into the document of
`value. FIGS. 2a to 2c show the steps performed during
`tailoring of the security device 10. As can be seen, during
`tailoring the reflective layer 20 is demetallized to include
`images, patterns and/or text. Tailoring the security device
`downstream of the security device manufacturing process is
`of course possible due to the fact that the reflective layer 20
`of the multilayer coating 14 is exposed. In this manner,
`highly sensitive information including the identity of the end
`supplier of the document of value can be kept secret from the
`manufacturer of the security device 10. Also, the security
`device material can be fabricated and stockpiled ahead of
`time and demetallized just prior to delivery to reduce the
`typical long lead times associated with the production of
`Such sophisticated technology.
`Once the reflective layer 20 has been demetallized, a PET
`cover layer 30 is bonded to the reflective layer 20 via a layer
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`3
`tailoring a thin film optically variable security device
`including a carrier and a multilayer coating on the carrier by
`altering an exposed reflective layer of said multilayer coat
`ing to include at least one of an image, pattern or text after
`manufacture of said security device by a security device
`manufacture;
`bonding a cover layer over said altered reflective layer;
`and
`incorporating the security device including said cover
`layer into said sheet-like substrate.
`The present invention provides advantages in that during
`manufacture of the thin film optically variable security
`device, since the reflective layer of the multilayer is
`exposed, the reflective layer can be secured at the end of the
`secure document manufacturing process. This reduces mate
`rial transfer between entities involved in the secure docu
`ment manufacturing process. Also highly sensitive informa
`tion can be preserved to the furthest extent possible in the
`secure document manufacturing process allowing the iden
`tity of the end customer to be kept confidential.
`The present invention provides further advantages in that
`it enables semi-finished security device material to be stock
`piled. As a result, Supply chain pressures, which are very
`common in this industry, are reduced. Customers of security
`devices for banknotes are typically very demanding on
`delivery schedule. Also, since the reflective layer of the
`security device is exposed, the security data to be incorpo
`rated into the reflective layer can be changed quickly in an
`existing banknote series, if necessary, to thwart or deter new
`counterfeiting threats.
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`BRIEF DESCRIPTION OF THE DRAWINGS
`
`An embodiment of the present invention will now be
`described more fully with reference to the accompanying
`drawings in which:
`FIG. 1 is a side elevation view of a thin film optically
`variable security device:
`FIGS. 2a to 2c are side elevation views showing the steps
`performed during tailoring of the security device of FIG. 1;
`FIG. 3 is a top plan view of a tailored security device; and
`FIG. 4 is a top plan view of a secure document of value
`including a tailored security device.
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`DETAILED DESCRIPTION F THE PREFERRED
`EMBODIMENT
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`The present invention relates generally to a secure docu
`ment of value Such as a banknote, security card or other
`sheet-like substrate that includes a security device to deter
`forgery and to a method of manufacturing the same. A thin
`film, optically variable security device is provided on the
`sheet-like substrate and is tailored after manufacture but
`prior to incorporation on the sheet-like substrate to avoid the
`Supplier of the secure document of value from having to
`disclose highly sensitive information to the security device
`manufacturer. Tailoring within the context of the present
`application refers to marking of the security device so that
`it includes security data Such as images, patterns, text and/or
`other identifiers proprietary to the issuer of the secure
`60
`document of value that make forgery more difficult. A
`preferred embodiment of the present invention will now be
`described with reference to FIG. 1 to 4.
`Turning now to FIG. 1, a thin film, optically variable
`security device for incorporation into a document of value
`Such as for example, a banknote, security card or other
`sheet-like substrate is shown and is generally identified by
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`of adhesive. In this manner, the multilayer coating 14 is
`dielectric-metal stack directly beneath said reflective
`protected against wear and chemical attack. The cover layer
`layer at said selected locations thereby to tailor said
`30 and carrier 12 also help to improve handling. The security
`security device.
`device 10 including the cover layer 30 is then coated with
`2. A document of value according to claim 1 wherein said
`Suitable adhesives and is incorporated into the document of 5 reflective layer is tailored to include at least one of an image,
`value to secure it. Windows are provided in the document of
`pattern or text.
`value to expose the security device 10 so that its optically
`3. A document of value according to claim 2 wherein said
`variable effect can be seen when looking at the secure
`reflective layer is selected from the group consisting of
`document of value from different angles.
`aluminum, chromium, nickel, silver, copper, gold, palla
`FIG. 3 shows various examples of a tailored security
`dium, platinum, titanium, Vanadium, cobalt, iron, tin, tung
`device 10. As can be seen, the reflective layer 20 in this case
`Sten, molybdenum, rhodium, niobium, carbon, graphite,
`is tailored to include images, patterns and text including
`silicon, germanium and compounds, mixtures or alloys
`national symbols. Those of skill in the art will appreciate that
`thereof.
`any Subset of images, patterns and text may be used to tailor
`4. A document of value according to claim 3 wherein said
`the security device 10.
`dielectric layer is selected from the group consisting of Zinc
`FIG. 4 shows a tailored security device 10 woven into a
`Sulfide, Zinc oxide, Zirconium oxide, Zirconium dioxide,
`document of value in the form of a banknote 50. In this case,
`titanium dioxide, diamond-like carbon, indium oxide,
`the reflective layer of the security device 10 is tailored to
`indium-tin-oxide, tantalum pentoxide, cerium oxide, yttrium
`include text only. Windows 52 provided in the banknote 50
`oxide, europium oxide, iron oxides, hafnium nitride,
`expose the security device at discrete locations.
`hafnium carbide, hafnium oxide, lanthanum oxide, magne
`With the security device incorporated into the document
`sium oxide, magnesium fluoride, neodymium oxide,
`of value, the security device provides the document of value
`praseodymium oxide, Samarium oxide, antimony trioxide,
`with a variety of security attributes. For example, the
`silicon monoxide, silicon dioxide, selenium trioxide, tin
`security device exhibits a sharp color shift without the
`oxide, tungsten trioxide and combinations thereofas well as
`typical rainbox effect observed in other prior art optically
`organic polymer acrylates.
`variable devices and is resistant to physical and chemical
`5. A document of value according to claim 4 wherein said
`attack. The color shift cannot be copied using modern
`absorber layer is selected from the group consisting of
`reprographic methods. The color shift is easy to verify and
`chromium, nickel, aluminum, silver, copper, palladium,
`to explain to the public making the security device simple
`platinum, titanium, Vanadium, cobalt, iron, tin, tungsten,
`for use by the public and document handles. The security
`molybdenum, rhodium, niobium, carbon, graphite, silicon,
`device can be used as a first level security feature and/or as
`germanium and compounds, mixtures or alloys thereof.
`a machine readable security feature.
`6. A document of value according to claim 1 further
`If desired, the carrier 12 can be embossed with an optical
`comprising a cover layer disposed on said reflective layer
`interference pattern or alternatively coated with a lacquer
`after tailoring and prior to incorporation of the security
`that is embossed with the optical interference pattern. The
`device on said sheet-like substrate.
`optical interference pattern may be selected from the group
`7. A document of value according to claim 6 further
`consisting of diffraction gratings, refraction patterns, holo
`comprising an adhesive layer bonding said cover layer to
`graphic image patterns or combinations thereof. Preferably,
`said reflective layer.
`the optical interference pattern includes microstructures
`8. A document of value according to claim 7 wherein said
`having dimensions in the range of from about 0.1 to 10
`reflective layer is selected from the group consisting of
`microns.
`aluminum, chromium, nickel, silver, copper, gold, palla
`Although the reflective layer 20 is described as being
`dium, platinum, titanium, Vanadium, cobalt, iron, tin, tung
`tailored through a demetallization process, those of skill in
`Sten, molybdenum, rhodium, niobium, carbon, graphite,
`the art will appreciate that other techniques may be used to
`silicon, germanium and compounds, mixtures or alloys
`tailor the reflective layer. For example, images, patterns
`thereof.
`and/or text may be printed onto the reflective layer by
`9. A document of value according to claim 8 wherein said
`various methods.
`absorber layer is selected from the group consisting of
`Also, although a preferred embodiment of the present
`chromium, nickel, aluminum, silver, copper, palladium,
`invention has been described, those of skill in the art will
`platinum, titanium, Vanadium, cobalt, iron, tin, tungsten,
`appreciate that variations and modifications may be made
`molybdenum, rhodium, niobium, carbon, graphite, silicon,
`without departing from the spirit and scope thereof as
`germanium and compounds, mixtures or alloys thereof and
`defined by the appended claims.
`wherein said dielectric layer is selected from the group
`What is claimed is:
`consisting of Zinc sulfide, Zinc oxide, Zirconium oxide,
`1. A document of value comprising:
`Zirconium dioxide, titanium dioxide, diamond-like carbon,
`a sheet-like Substrate; and
`indium oxide, indium-tin-oxide, tantalum pentoxide, cerium
`a thin film, optically variable security device on said
`oxide, yttrium oxide, europium oxide, iron oxides, hafnium
`Substrate, said security device comprising a carrier and
`nitride, hafnium carbide, hafnium oxide, lanthanum oxide,
`a multilayer coating on said carrier, said coating com
`magnesium oxide, magnesium fluoride, neodymium oxide,
`prising a dielectric-metal Stack of layers comprising an
`praseodymium oxide, Samarium oxide, antimony trioxide,
`exposed reflective layer disposed on underlying layers
`silicon monoxide, silicon dioxide, selenium trioxide, tin
`of said dielectric-metal stack, the underlying layers of
`oxide, tungsten trioxide and combinations thereofas well as
`said dielectric-metal stack comprising at least one
`organic polymer acrylates.
`semi-transparent absorber layer disposed on said car
`rier and at least one dielectric layer disposed on said
`10. A document of value according to claim 9 wherein
`absorber layer, said reflective layer being demetallized
`said reflective layer is formed of aluminum, said absorber
`layer is a Ni/Cr/Fe semi-transparent alloy and said dielectric
`at selected locations after manufacture of said security
`device to expose only the dielectric layer of said
`layer is formed of silicon dioxide.
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`11. A document of value according to claim 1 wherein
`said security device is in the form of a thread woven into said
`sheet-like Substrate, said sheet-like Substrate having at least
`one window therein to expose at least a portion of said
`security device.
`12. A document of value according to claim 11 wherein
`said sheet-like Substrate is a banknote.
`13. A document of value according to claim 12 further
`comprising a cover layer disposed on said reflective layer.
`14. A document of value according to claim 13 further
`comprising an adhesive layer bonding said cover layer to
`said reflective layer.
`15. A document of value according to claim 14 wherein
`said reflective layer is selected from the group consisting of
`aluminum, chromium, nickel, silver, copper, gold, palla
`dium, platinum, titanium, Vanadium, cobalt, iron, tin, tung
`Sten, molybdenum, rhodium, niobium, carbon, graphite,
`silicon, germanium and compounds, mixtures or alloys
`thereof.
`16. A document of value according to claim 15 wherein
`said absorber layer is selected from the group consisting of
`chromium, nickel, aluminum, silver, copper, palladium,
`platinum, titanium, Vanadium, cobalt, iron, tin, tungsten,
`molybdenum, rhodium, niobium, carbon, graphite, silicon,
`germanium and compounds, mixtures or alloys thereof and
`wherein said dielectric layer is selected from the group
`consisting of Zinc sulfide, Zinc oxide, Zirconium oxide,
`Zirconium dioxide, titanium dioxide, diamond-like carbon,
`indium oxide, indium-tin-oxide, tantalum pentoxide, cerium
`oxide, yttrium oxide, europium oxide, iron oxides, hafnium
`nitride, hafnium carbide, hafnium oxide, lanthanum oxide,
`magnesium oxide, magnesium fluoride, neodymium oxide,
`praseodymium oxide, Samarium oxide, antimony trioxide,
`silicon monoxide, silicon dioxide, selenium trioxide, tin
`oxide, tungsten trioxide and combinations thereofas well as
`organic polymer acrylates.
`17. A document of value according to claim 16 wherein
`said reflective layer is formed of aluminum, said absorber
`layer is a Ni/Cr/Fe semi-transparent alloy and said dielectric
`layer is formed of silicon dioxide.
`18. A document of value according to claim 13 wherein
`said carrier and said cover layer are formed of plastic
`material.
`19. A document of value according to claim 18 wherein
`said carrier and said cover layer are formed of polyethylene
`teraphathalate.
`20. A document of value according to claim 18 wherein
`said carrier is embossed with an optical interference pattern.
`
`40
`
`45
`
`US 7,161,738 B2
`
`10
`
`15
`
`25
`
`30
`
`35
`
`8
`21. A document of value according to claim 20 wherein
`said optical interference pattern is selected from the group
`consisting of a diffraction grating, a refraction pattern, a
`holographic image pattern or combination thereof.
`22. A document of value according to claim 21 wherein
`said optical interference pattern includes microstructures
`having dimensions in the range of from about 0.1 to 10
`microns.
`23. A document of value according to claim 18 wherein
`said carrier is coated with a lacquer, said lacquer being
`embossed with an optical interference pattern.
`24. A document of value according to claim 23 wherein
`said optical interference pattern is selected from the group
`consisting of a diffraction grating, a refraction pattern, a
`holographic image pattern or combination thereof.
`25. A document of value according to claim 24 wherein
`said optical interference pattern includes microstructures
`having dimensions in the range of from about 0.1 to 10
`microns.
`26. A method of manufacturing a secure document of
`value including a sheet-like Substrate and a thin film, opti
`cally variable security device incorporated into said sheet
`like Substrate, said method comprising the steps of
`tailoring a thin film optically variable security device
`including a carrier and a multilayer coating on the
`carrier, said coating comprising an exposed reflective
`layer disposed on at least two underlying layers, said at
`least two underlying layers comprising at least one
`semi-transparent absorber layer disposed on said car
`rier and at least one dielectric layer disposed on said
`absorber layer, said tailoring comprising demetallizing
`selected locations of said exposed reflective layer of
`said multilayer coating to expose only the dielectric
`layer of said coating directly beneath said reflective
`layer at said selected locations to form at least one of
`an image, pattern or text on said security device after
`manufacture of said security device by a security
`device manufacturer,
`bonding a cover layer over said demetallized reflective
`layer; and
`incorporating the security device including said cover
`layer into said sheet-like substrate.
`27. The method of claim 26 wherein said sheet-like
`Substrate is a banknote and wherein during said incorporat
`ing said security device is woven into said banknote.
`
`DEF-AIRE-EXTRINSIC00000816
`
`

`

`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 10 of 14
`
`US007161738C1
`(12) EX PARTE REEXAMINATION CERTIFICATE (8794th)
`United States Patent
`US 7,161,738 C1
`(10) Number:
`Jan. 10, 2012
`(45) Certificate Issued:
`Disano et al.
`
`(54) SECURE DOCUMENT OF VALUE AND
`METHOD OF MANUFACTURING SAME
`
`(75) Inventors: John N. Disano, Ottawa (CA); Omar
`Caporaletti, Mississauga (CA)
`
`(73) Assignee: Giesecke & DeVrient GmbH, Munich
`(DE)
`
`Reexamination Request:
`No. 90/011,493, Feb. 16, 2011
`
`Reexamination Certificate for:
`Patent No.:
`7,161,738
`Issued:
`Jan. 9, 2007
`Appl. No.:
`10/636,786
`Filed:
`Aug. 7, 2003
`(51) Int. Cl.
`GO2B I/O
`
`(2006.01)
`
`(52) U.S. Cl. .......................... 359/585; 35.9/586: 283/91;
`283/72
`(58) Field of Classification Search ................... 359/586
`See application file for complete search history.
`
`References Cited
`(56)
`To view the complete listing of prior art documents cited
`during the proceeding for Reexamination Control Number
`90/011,493, please refer to the USPTO's public Patent
`Application Information Retrieval (PAIR) system under the
`Display References tab.
`Primary Examiner Stephen Stein
`(57)
`ABSTRACT
`
`A secure document value includes a sheet-like Substrate and
`a thin film, optically variable security device on the sub
`strate. The security device includes a carrier and a multilayer
`coating on the carrier. The multilayer coating includes a
`dielectric-metal stack having an exposed reflective layer that
`is tailored after manufacture to include security data propri
`etary to the issuer of the document of value thereby to deter
`forgery. Since the security device is tailored after
`manufacture, the end Supplier of the document of value does
`not need to provide the proprietary information to the manu
`facturer of the security device for incorporation therein. This
`also enables the manufacturer of the security device to stock
`pile material unitl Such time the material must be customized
`to include proprietary data. This results in shorter lead times
`and better response to market demands.
`
`20
`20
`Z
`2, 22.2
`is
`
`
`
`
`
`
`
`12
`
`12
`
`DEF-AIRE-EXTRINSIC00000817
`
`

`

`Case 6:21-cv-01101-ADA Document 32 Filed 05/20/22 Page 11 of 14
`
`US 7,161,738 C1
`
`1.
`EX PARTE
`REEXAMINATION CERTIFICATE
`ISSUED UNDER 35 U.S.C. 307
`THE PATENT IS HEREBY AMENDED AS
`INDICATED BELOW.
`appeared in the
`Matter enclosed in