Patents by Inventor Roland Isherwood
Roland Isherwood has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9483719Abstract: The invention relates to improvements in substrates and in particular to new substrates having magnetic and visual security features, which provide security against imitation. A security substrate comprising a transparent polymer carrier layer bearing indicia formed from a plurality of opaque and non-opaque regions and a transparent magnetic layer supported by the carrier layer containing a distribution of particles of a hard magnetic material of a size and distributed in a concentration at which the magnetic layer remains transparent.Type: GrantFiled: August 18, 2008Date of Patent: November 1, 2016Assignee: De La Rue International LimitedInventors: Roland Isherwood, James Snelling, Alan Brown
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Patent number: 8027093Abstract: A security device comprises a substrate having an array of microlenses on one side and one or more corresponding arrays of microimages on the other side. The microimages are located at a distance from the microlenses substantially equal to the focal length of the microlenses. The substrate is sufficiently transparent to enable light to pass through the microlenses so as to reach the microimages. Each microimage is defined by an anti-reflection structure on the substrate formed by a periodic array of identical structural elements, light passing through a substrate and impinging on the microimages being reflected to a different extent than light which does not impinge on the microimages thereby rendering the microimages visible.Type: GrantFiled: October 4, 2010Date of Patent: September 27, 2011Assignee: De La Rue International LimitedInventors: Lawrence George Commander, Christopher John Eastell, Roland Isherwood, Brian William Holmes
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Publication number: 20110122499Abstract: A security device comprises a substrate having an array of microlenses on one side and one or more corresponding arrays of microimages on the other side. The microimages are located at a distance from the microlenses substantially equal to the focal length of the microlenses. The substrate is sufficiently transparent to enable light to pass through the microlenses so as to reach the microimages. Each microimage is defined by an anti-reflection structure on the substrate formed by a periodic array of identical structural elements, light passing through a substrate and impinging on the microimages being reflected to a different extent than light which does not impinge on the microimages thereby rendering the microimages visible.Type: ApplicationFiled: October 4, 2010Publication date: May 26, 2011Applicant: De La Rue International LimitedInventors: Lawrence George Commander, Christopher John Eastell, Roland Isherwood, Brian William Holmes
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Patent number: 7903308Abstract: A security device comprises at least two regions, each region comprising a prismatic surface structure defining an array of substantially planar facets. Each region forms a reflector due to total internal reflection when viewed at least one first viewing angle and is transparent when viewed at at least one second viewing angle. The said at least one first viewing angle of one region is different from the at least one first viewing angle of the other region.Type: GrantFiled: March 7, 2006Date of Patent: March 8, 2011Assignee: De La Rue International LimitedInventors: Lawrence George Commander, Christopher John Eastell, Roland Isherwood
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Patent number: 7830627Abstract: A security device comprises a substrate (1) having an array of microlenses (3) on one side and one or more corresponding arrays of microimages (4) on the other side. The microimages (4) are located at a distance from the microlenses (3) substantially equal to the focal length of the microlenses. The substrate (1) is sufficiently transparent to enable light to pass through the microlenses (3) so as to reach the microimages (4). Each microimage (4) is defined by an anti-reflection structure on the substrate (1) formed by a periodic array of identical structural elements, light passing through the substrate and impinging on the microimages being reflected to a different extent than light which does not impinge on the microimages thereby rendering the microimages visible.Type: GrantFiled: April 28, 2005Date of Patent: November 9, 2010Assignee: De La Rue International LimitedInventors: Lawrence George Commander, Christopher John Eastell, Roland Isherwood, Brian William Holmes
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Patent number: 7703811Abstract: The current invention relates to a security element for security substrates, such as those used for banknotes and the like, having enhanced public recognition, anti-counterfeit and detection properties. A security element comprising an elongate strip of a light transmitting polymeric substrate, said substrate being provided with a magnetic feature and a metallic design, the metallic design being provided by a combination of metal and non-metallic regions and comprising indicia, characters, patterns, designs, or geometrical shapes or a combination of the aforesaid design comprising at least one repeating pattern or which one or more of the frequency, the instantaneous amplitude and/or the maximum amplitude of the pattern varies along the length of the element, said pattern being positioned relative to the magnetic feature such that it does not overlap therewith.Type: GrantFiled: January 9, 2004Date of Patent: April 27, 2010Assignee: De La Rue International, Ltd.Inventor: Roland Isherwood
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Publication number: 20090250920Abstract: The invention relates to a security device for security substrates, such as paper, used for making security documents, such as bank notes, having anti-counterfeitable features. The security device comprises a carrier of an at least partially light transmitting polymeric material, said carrier being provided with indicia. The indicia comprise a first component being at least one non-alphanumeric pattern which repeats along the length of the device and is formed from at least one fine line, and a second component being alphanumeric characters, the two components being registered to and interlinked with each other.Type: ApplicationFiled: September 21, 2006Publication date: October 8, 2009Inventors: Roland Isherwood, David Stewart Clinch
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Publication number: 20090034082Abstract: A security device comprises a substrate (1) having an array of microlenses (3) on one side and one or more corresponding arrays of microimages (4) on the other side. The microimages (4) are located at a distance from the microlenses (3) substantially equal to the focal length of the microlenses. The substrate (1) is sufficiently transparent to enable light to pass through the microlenses (3) so as to reach the microimages (4). Each microimage (4) is defined by an anti-reflection structure on the substrate (1) formed by a periodic array of identical structural elements, light passing through the substrate and impinging on the microimages being reflected to a different extent than light which does not impinge on the microimages thereby rendering the microimages visible.Type: ApplicationFiled: April 28, 2005Publication date: February 5, 2009Applicant: DE LA RUE INTERNATIONAL, LTD.Inventors: Lawrence George Commander, Christopher John Eastell, Roland Isherwood, Brian William Holmes
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Publication number: 20090029123Abstract: The invention relates to improvements in substrates and in particular to new substrates having magnetic and visual security features, which provide security against imitation. A security substrate comprising a transparent polymer carrier layer bearing indicia formed from a plurality of opaque and non-opaque regions and a clear and transparent magnetic layer supported by the carrier layer containing a distribution of particles of a soft magnetic material of a size and distributed in a concentration at which the magnetic layer remains clear and transparent.Type: ApplicationFiled: August 20, 2008Publication date: January 29, 2009Inventors: Roland Isherwood, James Snelling, Alan Brown
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Publication number: 20080311317Abstract: The invention relates to improvements in substrates and in particular to new substrates having magnetic and visual security features, which provide security against imitation. A security substrate comprising a transparent polymer carrier layer bearing indicia formed from a plurality of opaque and non-opaque regions and a transparent magnetic layer supported by the carrier layer containing a distribution of particles of a hard magnetic material of a size and distributed in a concentration at which the magnetic layer remains transparent.Type: ApplicationFiled: August 18, 2008Publication date: December 18, 2008Inventors: Roland Isherwood, James Snelling, Alan Brown
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Publication number: 20080231976Abstract: A security device comprises at least two regions, each region comprising a prismatic surface structure defining an array of substantially planar facets. Each region forms a reflector due to total internal reflection when viewed at least one first viewing angle and is transparent when viewed at least one second viewing angle. The said at least one first viewing angle of one region is different from the at least one first viewing angle of the other region. Furthermore, a security device comprising an asymmetrical or truncated prismatic surface structure is located in a transparent area of an article.Type: ApplicationFiled: March 7, 2006Publication date: September 25, 2008Inventors: Lawrence George Commander, Christopher John Eastell, Roland Isherwood
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Publication number: 20080143095Abstract: The invention therefore comprises a security substrate (11) comprising a fibrous substrate and a security device (10) The security device (10) comprises an at least partially light transmissive polymeric carrier layer bearing a first security feature and the substrate being provided with a second security feature. The first and second security features are formed and located relative to each other such that, when one side of the security substrate (11) is viewed in transmitted light the first and second security features visually combine to form a first composite image, which is not seen in reflected light.Type: ApplicationFiled: April 29, 2005Publication date: June 19, 2008Inventors: Roland Isherwood, Duncan Hamilton Reid
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Patent number: 7179393Abstract: The present invention relates to improvements in methods of manufacture of substrates which can be used in varying shapes and sizes for various authenticating or security applications, which combine the advantages of indicia formed from metallisation or demetallisation of a security element and the colorshift effects of liquid crystal materials. The invention therefore provides a method of manufacturing a substrate comprising the steps of applying a darkly colored resist to at least a part of a metallic layer on one side of a substantially transparent polymeric film, removing metal from areas not covered by the resist to form demetallised regions and applying a polymeric liquid crystal material over the resist and the demetallised regions.Type: GrantFiled: January 22, 2003Date of Patent: February 20, 2007Assignee: De La Rue International, Ltd.Inventors: Roland Isherwood, Lawrence George Commander
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Publication number: 20060097512Abstract: The current invention relates to a security element for security substrates, such as those used for banknotes and the like, having enhanced public recognition, anti-counterfeit and detection properties. A security element comprising an elongate strip of a light transmitting polymeric substrate, said substrate being provided with a magnetic feature and a metallic design, the metallic design being provided by a combination of metal and non-metallic regions and comprising indicia, characters, patters, designs, or geometrical shapes or a combination of the aforesaid design comprising at least one repeating pattern or which one or more of the frequency, the instantaneous amplitude and/or the maximum amplitude of the pattern varies along the length of the element, said pattern being positioned relative to the magnetic feature such that it does not overlap therewith.Type: ApplicationFiled: January 9, 2004Publication date: May 11, 2006Inventor: Roland Isherwood
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Publication number: 20050238851Abstract: The invention relates to improvements in substrates and in particular to new substrates having magnetic and visual security features, which provide security against imitation. A security substrate comprising a transparent polymer carrier layer bearing indicia formed from a plurality of opaque and non-opaque regions and a clear and transparent magnetic layer supported by the carrier layer containing a distribution of particles of a soft magnetic material of a size and distributed in a concentration at which the magnetic layer remains clear and transparent.Type: ApplicationFiled: April 24, 2003Publication date: October 27, 2005Inventors: Roland Isherwood, James Snelling, Alan Brown
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Publication number: 20050116464Abstract: This invention relates to improvements in substrates and in particular to new substrates having magnetic and visual security features, which provide security against imitation. A security substrate comprising a transparent carrier layer bearing indicia formed from a plurality of opaque and non-opaque regions and a transparent magnetic layer supported by the carrier layer containing a distribution of particles of a hard magnetic material of a size and distributed in a concentration at which the magnetic layer remains transparent.Type: ApplicationFiled: April 24, 2003Publication date: June 2, 2005Inventors: Roland Isherwood, James Snelling, Alan Brown
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Publication number: 20050118396Abstract: The present invention relates to improvements in methods of manufacture of substrates which can be used in varying shapes and sizes for various authenticating or security applications, which combine the advantages of indicia formed from metallisation or demetallisation of a security element and the colour shift effects of liquid crystal materials. The invention therefore provides a method of manufacturing a substrate comprising the steps of applying a darkly coloured resist to at least a part of a metallic layer on one side of a substantially transparent polymeric film, removing metal from areas not covered by the resist to form demetallised regions and applying a polymeric liquid crystal material over the resist and the demetallised regions.Type: ApplicationFiled: January 22, 2003Publication date: June 2, 2005Inventors: Roland Isherwood, Lawrence Commander
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Patent number: 6616803Abstract: This invention is directed to improvements in paper incorporating an elongate impermeable element, to a method of making such paper and to documents made therefrom.Type: GrantFiled: November 9, 2001Date of Patent: September 9, 2003Assignee: De la Rue International LimitedInventors: Roland Isherwood, Stephen David Ridyard
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Patent number: 6199911Abstract: The invention relates to a security element for security paper for banknotes and the like having both aesthetic and anti-counterfeitable qualities. The invention comprises a security element for wholly or partially embedding in security paper comprising an elongate strip of a light transmitting polymeric substrate. The substrate bears a reflective metallic layer on at least one surface thereof in the form of a design. The design comprises at least one repeating geometric pattern of which one of more of the frequency, instantaneous amplitude and/or maximum amplitude of the pattern varies along the length of the element and design having at least one non-linear boundary.Type: GrantFiled: September 24, 1999Date of Patent: March 13, 2001Assignee: De la Rue International LimitedInventors: Roland Isherwood, John Martin Haslop
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Patent number: 5678863Abstract: A means of identification or document of value which includes a paper or polymer region, in particular, bank notes, passports, identification cards or any other document of sufficient value to make it liable to be copied or counterfeited, includes a watermark in the region and a liquid crystal material applied to the region and to at least a part of the watermark to produce optical effects which differ when viewed in transmitted and reflected light.Type: GrantFiled: January 23, 1995Date of Patent: October 21, 1997Assignee: Portals LimitedInventors: Malcolm Robert Murray Knight, Roland Isherwood, Sarah Anne Rocca, Robin Edward Godfrey, Craig Harvey Nelson