Patents by Inventor Cédric Amerasinghe
Cédric Amerasinghe 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: 11660902Abstract: The present invention relates to the field of optical effect layers (OEL) including magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: GrantFiled: August 23, 2018Date of Patent: May 30, 2023Assignee: SICPA HOLDING SAInventors: Cédric Amerasinghe, Edgar Mueller, Evgeny Loginov, Mathieu Schmid, Claude-Alain Despland
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Patent number: 11577272Abstract: The present invention relates to the field of magnetic assemblies, magnetic apparatuses and processes for producing optical effect layers (OEL) comprising magnetically oriented non-spherical magnetic or magnetizable pigment particles on a substrate and providing an impression of a crescent moon-shaped element moving or rotating upon tilting the optical effect layer (OEL). In particular, the present invention relates to magnetic assemblies, magnetic apparatuses and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: GrantFiled: May 7, 2019Date of Patent: February 14, 2023Assignee: SICPA HOLDING SAInventors: Cédric Amerasinghe, Mathieu Schmid, Claude-Alain Despland
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Patent number: 11420230Abstract: The present invention relates to the field of optical effect layers (OEL) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: GrantFiled: August 23, 2018Date of Patent: August 23, 2022Assignee: SICPA HOLDING SAInventors: Cédric Amerasinghe, Edgar Mueller, Evgeny Loginov, Mathieu Schmid, Claude-Alain Despland
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Publication number: 20210245197Abstract: The present invention relates to the field of magnetic assemblies, magnetic apparatuses and processes for producing optical effect layers (OEL) comprising magnetically oriented non-spherical magnetic or magnetizable pigment particles on a substrate and providing an impression of a crescent moon-shaped element moving or rotating upon tilting the optical effect layer (OEL). In particular, the present invention relates to magnetic assemblies, magnetic apparatuses and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: ApplicationFiled: May 7, 2019Publication date: August 12, 2021Inventors: Cédric AMERASINGHE, Mathieu SCHMID, Claude-Alain DESPLAND
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Patent number: 11065906Abstract: The present invention relates to the field of optical effect layers (OEL) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: GrantFiled: August 23, 2018Date of Patent: July 20, 2021Assignee: SICPA HOLDING SAInventors: Cédric Amerasinghe, Edgar Mueller, Evgeny Loginov, Mathieu Schmid, Claude-Alain Despland
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Patent number: 10933442Abstract: The disclosure relates to the field of the protection of security documents, such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present disclosure provides processes for producing optical effect layers (OELs) on a substrate and OELs obtained thereof, said process including two magnetic orientation steps: a step of exposing a coating composition having platelet-shaped magnetic or magnetisable pigment particles to a dynamic magnetic field of a first magnetic-field-generating device so as to bi-axially orient at least a part of the platelet-shaped magnetic or magnetisable pigment particles, and a step of exposing the coating composition to a static magnetic field of a second magnetic-field-generating device, thereby mono-axially re-orienting at least a part of the platelet-shaped magnetic or magnetisable pigment particles.Type: GrantFiled: November 14, 2014Date of Patent: March 2, 2021Assignee: SICPA HOLDING SAInventors: Mathieu Schmid, Claude-Alain Despland, Evgeny Loginov, Cedric Amerasinghe, Pierre Degott
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Publication number: 20200254484Abstract: The present invention relates to the field of optical effect layers (OEL) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: ApplicationFiled: August 23, 2018Publication date: August 13, 2020Inventors: Cédric AMERASINGHE, Edgar MUELLER, Evgeny LOGINOV, Mathieu SCHMID, Claude-Alain DESPLAND
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Publication number: 20200247173Abstract: The present invention relates to the field of optical effect layers (OEL) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: ApplicationFiled: August 23, 2018Publication date: August 6, 2020Inventors: Cédric AMERASINGHE, Edgar MUELLER, Evgeny LOGINOV, Mathieu SCHMID, Claude-Alain DESPLAND
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Publication number: 20200215844Abstract: The present invention relates to the field of optical effect layers (OEL) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.Type: ApplicationFiled: August 23, 2018Publication date: July 9, 2020Inventors: Cédric AMERASINGHE, Edgar MUELLER, Evgeny LOGINOV, Mathieu SCHMID, Claude-Alain DESPLAND
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Patent number: 10279618Abstract: The invention relates to the field of non-spherical magnetic or magnetisable pigment particles and coating compositions comprising those pigment particles for producing optical effect layers (OEL) wherein the magnetic or magnetisable pigment particles are magnetically oriented. In particular, the present invention provides uses of said optical effect layers (OEL) layers as anti-counterfeit means on security documents or security articles.Type: GrantFiled: July 25, 2014Date of Patent: May 7, 2019Assignee: SICPA HOLDING SAInventors: Pierre Degott, Mathieu Schmid, Claude-Alain Despland, Cédric Amerasinghe
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Patent number: 9933640Abstract: Disclosure relates to the field of graphical elements and is directed to a device for producing an optical effect layer (OEL). Disclosure provides an optical effect that is easy to detect as such and exhibits a viewing-angle dependent apparent motion of image features over an extended length if the viewing angle with respect to the OEL changes. OEL includes a binder material being at least partially transparent and a plurality of particles dispersed within the layer. Each particle has a non-isotropic reflectivity and may be magnetic or magnetizable. Orientation of the particles forms an orientation pattern extending over a length within an extended surface of the OEL, such that the local average of an angle between (i) a straight line along an observed longest dimension within the corresponding cross-section shape, and (ii) said first direction x varies according to a function (?) of a position (P) along said first direction.Type: GrantFiled: December 14, 2016Date of Patent: April 3, 2018Assignee: SICPA HOLDING SAInventors: Pierre Degott, Mathieu Schmid, Claude Alain Despland, Cedric Amerasinghe
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Patent number: 9834028Abstract: The disclosure relates to the field of graphical elements and is directed to an optical effect layer (OEL), a device and a method for producing same. The disclosure provides an optical effect that is easy to detect as such and exhibits a viewing-angle dependent apparent motion of image features over an extended length if the viewing angle with respect to the OEL changes. An OEL includes a binder material being at least partially transparent and a plurality of particles dispersed within the layer. Each particle has a non-isotropic reflectivity and may be magnetic or magnetizable. The orientation of the particles forms an orientation pattern extending over a length within an extended surface of the OEL, such that the local average of an angle between (i) a straight line along an observed longest dimension within the corresponding cross-section shape, and (ii) said first direction x varies according to a function (?) of a position (P) along said first direction.Type: GrantFiled: April 30, 2013Date of Patent: December 5, 2017Assignee: SICPA HOLDING SAInventors: Pierre Degott, Mathieu Schmid, Claude Alain Despland, Cedric Amerasinghe
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Publication number: 20170160570Abstract: Disclosure relates to the field of graphical elements and is directed to a device for producing an optical effect layer (OEL). Disclosure provides an optical effect that is easy to detect as such and exhibits a viewing-angle dependent apparent motion of image features over an extended length if the viewing angle with respect to the OEL changes. OEL includes a binder material being at least partially transparent and a plurality of particles dispersed within the layer. Each particle has a non-isotropic reflectivity and may be magnetic or magnetizable. Orientation of the particles forms an orientation pattern extending over a length within an extended surface of the OEL, such that the local average of an angle between (i) a straight line along an observed longest dimension within the corresponding cross-section shape, and (ii) said first direction x varies according to a function (?) of a position (P) along said first direction.Type: ApplicationFiled: December 14, 2016Publication date: June 8, 2017Applicant: SICPA HOLDING SAInventors: Pierre DEGOTT, Mathieu SCHMID, Claude-Alain DESPLAND, Cedric AMERASINGHE
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Publication number: 20160325310Abstract: The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the present invention provides processes for producing optical effect layers (OELs) on a substrate and OELs obtained thereof, said process comprising two magnetic orientation steps: a step of exposing a coating composition comprising platelet-shaped magnetic or magnetisable pigment particles to a dynamic magnetic field of a first magnetic-field-generating device so as to bi-axially orient at least a part of the platelet-shaped magnetic or magnetisable pigment particles and a step of exposing the coating composition to a static magnetic field of a second magnetic-field-generating device, thereby mono-axially reorienting at least a part of the platelet-shaped magnetic or magnetisable pigment particles.Type: ApplicationFiled: November 14, 2014Publication date: November 10, 2016Applicant: SICPA HOLDING SAInventors: Mathieu SCHMID, Claude-Alain DESPLAND, Evgeny LOGINOV, Cedric AMERASINGHE, Pierre DEGOTT
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Publication number: 20160176223Abstract: The invention relates to the field of non-spherical magnetic or magnetisable pigment particles and coating compositions comprising those pigment particles for producing optical effect layers (OEL) wherein the magnetic or magnetisable pigment particles are magnetically oriented. In particular, the present invention provides uses of said optical effect layers (OEL) layers as anti-counterfeit means on security documents or security articles.Type: ApplicationFiled: July 25, 2014Publication date: June 23, 2016Applicant: SICPA HOLDING SAInventors: Pierre DEGOTT, Mathieu SCHMID, Claude-Alain DESPLAND, Cédric AMERASINGHE
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Patent number: 9199502Abstract: Device for the counterfeit protection of a banknote, a document of value or an article. The device includes a substrate (S), and on the substrate (S) a plurality of jointly visible zones of first (1) and of second (2) hardened coatings including oriented pigment particles (P1, P2) in a transparent binder (M1, M2), the first (1) hardened coating having a pigment orientation imitating a first curved surface and the second (2) hardened coating having a pigment orientation imitating a second curved surface different from the first curved surface. The device is characterized in that, along a linear section through the device, at least one zone of the second (2) hardened coating is contiguously located between two zones of the first (1) hardened coating. Method for producing the device, the use of the device, as well as security documents carrying said device.Type: GrantFiled: February 3, 2012Date of Patent: December 1, 2015Assignee: SICPA HOLDING SAInventors: Pierre Degott, Claude-Alain Despland, Mathieu Schmid, Cedric Amerasinghe
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Publication number: 20150146280Abstract: The disclosure relates to the field of graphical elements and is directed to an optical effect layer (OEL), a device and a method for producing same. The disclosure provides an optical effect that is easy to detect as such and exhibits a viewing-angle dependent apparent motion of image features over an extended length if the viewing angle with respect to the OEL changes. An OEL includes a binder material being at least partially transparent and a plurality of particles dispersed within the layer. Each particle has a non-isotropic reflectivity and may be magnetic or magnetizable. The orientation of the particles forms an orientation pattern extending over a length within an extended surface of the OEL, such that the local average of an angle between (i) a straight line along an observed longest dimension within the corresponding cross-section shape, and (ii) said first direction x varies according to a function (?) of a position (P) along said first direction.Type: ApplicationFiled: April 30, 2013Publication date: May 28, 2015Applicant: SICPA HOLDING SAInventors: Pierre Degott, Mathieu Schmid, Claude Alain Despland, Cédric Amerasinghe
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Publication number: 20120205905Abstract: Device for the counterfeit protection of a banknote, a document of value or an article. The device includes a substrate (S), and on the substrate (S) a plurality of jointly visible zones of first (1) and of second (2) hardened coatings including oriented pigment particles (P1, P2) in a transparent binder (M1, M2), the first (1) hardened coating having a pigment orientation imitating a first curved surface and the second (2) hardened coating having a pigment orientation imitating a second curved surface different from the first curved surface. The device is characterized in that, along a linear section through the device, at least one zone of the second (2) hardened coating is contiguously located between two zones of the first (1) hardened coating. Method for producing the device, the use of the device, as well as security documents carrying said device.Type: ApplicationFiled: February 3, 2012Publication date: August 16, 2012Applicant: SICPA HOLDING SAInventors: Pierre DEGOTT, Claude-Alain DESPLAND, Mathieu SCHMID, Cedric AMERASINGHE