Patents Assigned to Leonhard Kurz Stiftung & Co. KG
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Patent number: 8263191Abstract: There is described a method of producing color effect images on a carrier substrate, wherein it is provided that a latent magnetic image comprising magnetic pixels and non-magnetic pixels is produced on a magnetizable printing form, a carrier substrate with a decorative layer applied to the carrier substrate and provided with non-spherical, preferably needle-form or flake-form magnetic color effect pigments is moved past the magnetizable printing form so that color effect pigments of the decorative layer are changed in their orientation relative to the carrier substrate by the field line image produced by the magnetic pixels of the magnetizable printing form, and the color effect pigments are fixed in the decorative layer in the orientation which is changed by the field line image of the printing form. There is further described an apparatus for carrying out the method and a multi-layer body produced therewith.Type: GrantFiled: April 26, 2006Date of Patent: September 11, 2012Assignee: Leonhard Kurz Stiftung & Co. KGInventor: Heinrich Wild
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Publication number: 20120156446Abstract: The invention relates to a method for producing a multilayer element (100), and also to a multilayer element (100) produced by said method. On and/or in a carrier ply (1) a decorative ply (3) is formed. The decorative ply (3) has a first region (8) and a second region (9). Viewed perpendicular to the plane of the carrier ply (1), the decorative ply (3) has in the first region (8) a first transmittance and in the second region (9) a second transmittance greater in comparison to the first transmittance. A layer (5) to be structured and a photoactivatable resist layer are disposed on the first side (11) of the carrier ply (1). On exposure of the resist layer through the decorative ply (3), the decorative ply (3) serves as an exposure mask. The at least one layer (5) to be structured and the resist layer are structured in register to one another by means of structuring operations synchronized with one another.Type: ApplicationFiled: July 13, 2010Publication date: June 21, 2012Applicant: LEONHARD KURZ STIFTUNG & CO. KGInventors: Ludwig Brehm, Rene Staub
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Publication number: 20120156445Abstract: The invention relates to a multilayer body (100) for producing a decorated plastic article (50) having a surface relief (40). The multilayer body (100) comprises a relief film (1) with a first carrier film (2) and a structural layer (3), arranged on one side of the first carrier film (2). The multilayer body (100) also comprises a multilayer film (5) with a second carrier film (10) and at least one decorative layer (12, 14). The structural layer (3) is arranged here between the first carrier film (2) and the second carrier film (10). Furthermore, the multilayer body (100) has a film body (19) which comprises the relief film (1) and can be released from the at least one decorative layer (12, 14), and the at least one decorative layer (12, 14) is formed such that it can be deformed by the structural layer (3) formed as a stamped structure.Type: ApplicationFiled: June 18, 2010Publication date: June 21, 2012Applicant: LEONHARD KURZ STIFTUNG & CO. KGInventors: Jurgen Schmidt, Gert Jungmann, Juri Attner
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Publication number: 20120145330Abstract: There is described a joining device (1) comprising a stamp which can be moved up and down between a lower working position and an upper loading position. For example a hot embossing film (14) and a substrate (13) arranged under the hot embossing film (14) can be arranged between the stamp and the support table (12). The support table (12) is mounted pivotably about two pivot axes which are perpendicular to each other and which are perpendicular to the axis of movement of the stamp (11) and is pivotable by means of adjusting devices (18) about the two pivot axes, wherein the stamp (11) forms a rigid support in the working position. Alternatively the stamp (11) is mounted pivotably about two pivot axes which are perpendicular to each other and which are perpendicular to the axis of movement of the stamp (11) and is pivotable by means of adjusting devices (18) about the two pivot axes, wherein the support table (12) forms a rigid support in the working position.Type: ApplicationFiled: June 18, 2010Publication date: June 14, 2012Applicant: LEONHARD KURZ STIFTUNG & CO. KGInventor: Reinhard Bieber
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Patent number: 8158252Abstract: The invention concerns a stamping film for the production of tamper-proof license plates and a license plate produced using a stamping film. The stamping film includes a carrier film and a transfer layer which is detachable from the carrier film and which can be fixed on a substrate of the license plate. Starting from the carrier film, the transfer layer includes a transparent release layer, an opaque decoration layer, a transparent protection layer, an optically variable layer, a reflection layer, a colored layer and an adhesive layer. The decoration layer has mutually spaced areal interruptions where the transparent protection layer adjoins the release layer. The adhesive layer is provided for fixing the transfer layer to the substrate of the license plate.Type: GrantFiled: March 29, 2005Date of Patent: April 17, 2012Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Hubert Süssner, Wolfgang Bilger
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Patent number: 8132736Abstract: The invention relates to a document of value, in particular a credit card, identity card or ticket, and to a transfer film for the production of a document of value. The latter has on one of its surfaces a security element (2), which has a magnetic layer (25) for storing machine-readable information and a reflective, non-magnetizable metal layer (23). The metal layer is arranged above the magnetic layer (25) in relation to the surface of the document of value. The metal layer and the magnetic layer overlap, at least in some regions. The region of the metal layer (23) that overlaps the magnetic layer (25) is subdivided into at least two regions (231) isolated electrically from one another.Type: GrantFiled: April 2, 2007Date of Patent: March 13, 2012Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Heinrich Wild, Ludwig Brehm
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Patent number: 8132830Abstract: The invention concerns a security and/or value document, in particular a banknote. The security and/or value document has a support (1) of a paper material and an in particular strip-form or thread-form film element (2) which contains one or more optical security features. The support (1) has one or more window-shaped openings (35) which are closed by means of the film element (2) which projects beyond the openings on all sides. Applied to the side of the support (1) of a paper material, which is in opposite relationship to the film element (2), is a sealing layer (4) which covers the surfaces of the film element (2) at least in the region of the openings.Type: GrantFiled: March 21, 2005Date of Patent: March 13, 2012Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Ludwig Brehm, Klaus Weber
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Publication number: 20120038082Abstract: There is described an apparatus for performing the in-mold decoration method with an injection tool (1). The injection tool (1) has a first tool portion (11) having a first mold recess (13) and a second tool portion (12) having a second mold recess (15) corresponding to the first mold recess. The second tool portion (12) has at least one injection passage (12e), wherein a portion of an endless decorative film (16) can be arranged between the first tool portion (11) and the second tool portion (12). The mold recess (13) of the first tool portion (11) has a raised edge region (14) extending in a closed configuration around the mold recess (13) and having an end face (14s) which is flattened or rounded or pointed in cross-section. The second tool portion (12) has a corresponding end face (12s) parallel to the end face (14s) of the raised edge region (14).Type: ApplicationFiled: March 12, 2010Publication date: February 16, 2012Applicant: LEONHARD KURZ STIFTUNG & CO. KGInventors: Harald Burger, Martin Hahn
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Publication number: 20120001823Abstract: The invention relates to a multilayer film element (1) and to a method for producing the same. The multilayer film element (1) comprises a flexible dielectric carrier layer having a layer thickness of less than 800 ?m. Furthermore, it comprises a first electrically conductive layer, in which a first coil-shaped conductor track (27) is shaped in a first region (71) of the film element, and a second electrically conductive layer, in which a second coil-shaped conductor track (37) is shaped in the first region (71). The dielectric carrier layer is arranged between the first and second electrically conductive layers, and the first and second conductor tracks (27, 37) overlap at least in regions and are coupled to one another to form an antenna structure.Type: ApplicationFiled: January 4, 2010Publication date: January 5, 2012Applicant: LEONHARD KURZ STIFTUNG & CO. KGInventors: John Anthony Peters, Christian Schumacher, Ulrich Schindler
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Patent number: 8077114Abstract: The invention concerns a process for the production of an electrically conductive structure on a carrier substrate comprising at least two conductor track portions spaced in a region of a width b over the entire width b at between 500 ?m and 1 ?m and a multi-layer film body. A conductive layer in the form of the conductor track portions is produced on the surface of the carrier substrate. A metallic coating forming the electrically conductive structure is deposited on the conductive layer by application of a flow of current in an electrolyte which contains a dissolved coating metal. In the production of the conductive layer the conductive layer is additionally produced in the form of conductor track extensions which are arranged on both sides of the conductor track portions and which are convexly curved away from the oppositely disposed conductor track portion.Type: GrantFiled: June 27, 2008Date of Patent: December 13, 2011Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Walter Lehnberger, Michael Rohm
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Patent number: 7976931Abstract: The invention concerns multi-layer films for back-molding with a liquid plastic material in an inmold process for the production of a decorated injection molded article of high optical quality and utilitarian suitability, in particular having curved surfaces, wherein the multi-layer film has at least one replication lacquer layer which at least on one of its surfaces has a spatial structure producing a visually perceptible and/or technical effect, wherein a contrast layer which is preferably in the form of a reflection layer is arranged in adjoining relationship with at least one surface with a spatial structure at least in region-wise manner. The invention further concerns an injection molded article which is decorated with a multi-layer film and a process for the production of the article.Type: GrantFiled: February 3, 2006Date of Patent: July 12, 2011Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Andreas Schilling, Matthias Heinrich, Andreas Hirschfelder
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Publication number: 20110134496Abstract: The invention relates to a method for producing a security element (55) and to a security element (55) in the form of a multilayered film body having a top side facing the observer. The security element (55) has a volume hologram layer, in which a volume hologram is recorded, which provides a first optically variable information item. The security element (55) has a replication layer, in the surface of which a relief structure providing a second optically variable information item is molded and which is arranged above the volume hologram layer. A partial metallic layer is arranged between the volume hologram layer and the replication layer, wherein the metallic layer is provided in one or a plurality of first zones of the security element and the metallic layer is not provided in one or a plurality of second zones of the security element.Type: ApplicationFiled: April 2, 2009Publication date: June 9, 2011Applicant: LEONHARD KURZ STIFTUNG & CO. KGInventors: Wayne Robert Tompkin, Norbert Lutz, Markus Burkhardt, Michael Scharfenberg
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Patent number: 7940340Abstract: A multilayer body (1) having an optically active first layer system (10) is described, in which case the first layer system (10) is an optically variable device (OVD), and the optical effect of the first layer system (10) can be influenced by an electrically controllable second layer system (20).Type: GrantFiled: July 4, 2006Date of Patent: May 10, 2011Assignees: PolyIC GmbH & Co. KG, Leonhard Kurz Stiftung & Co. KGInventors: Klaus Ludwig, Wolfgang Clemens
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Patent number: 7940159Abstract: The invention relates to a security element in the form of a flexible, multilayer film body and to an identification system comprising a security element of this type. The security element has a receiving unit (61) for receiving an electromagnetic verification signal (7) containing a specific coding from a verification device, an output unit (66) for outputting an enable signal, and an electronic release system (63, 64, 65) having active and/or passive organic components. The electronic release system (63, 64, 65) checks whether or not a signal received by the receiving unit contains the specific coding, and drives the output unit (66) for outputting the enable signal if the signal received by the receiving unit (61) contains the specific coding.Type: GrantFiled: December 6, 2005Date of Patent: May 10, 2011Assignees: PolyIC GmbH & Co. KG, Leonhard Kurz Stiftung & Co. KGInventors: Wolfgang Clemens, Walter Fix, Andreas Ullmann, Werner Reinhart, Beate Reinhart, legal representative
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Patent number: 7929210Abstract: An optically variable element, in particular an optically variable safeguard element for safeguarding banknotes, credit cards and the like, and a security product and a foil, in particular an embossing foil or a laminating foil, having such an optically variable element. The optically variable element has a thin film for producing color shifts by means of an interference and/or a reflective layer. The optically variable element further has a transparent window and the thin film and/or the reflective layer is respectively in the form of a partial element, namely a partial thin film element or a partial reflective element, wherein the partial element or elements surround the surface region of the transparent window.Type: GrantFiled: April 14, 2009Date of Patent: April 19, 2011Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Heinrich Wild, Ludwig Brehm
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Patent number: 7913619Abstract: There is described an apparatus for embossing a decorative layer of an embossing film (12) which is of a strip form, on to a small-radiused corner of a surface element, wherein a high cycle speed and high cycle rates are achieved in that the embossing apparatus (10) has a revolver head (16) which is rotatable stepwise about an axis (18) and which at its periphery (26) has a number of elastic pressing members (28) with which a heating device (30) is associated, wherein the revolver head (16) is reciprocatingly movable on a linear drive device (20) between an embossing position and an inactive position.Type: GrantFiled: November 27, 2007Date of Patent: March 29, 2011Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Helmut Hogl, Norbert Hofler
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Patent number: 7906054Abstract: The invention concerns a decorated injection molded article and a process for the production of a decorated injection molded article by means of inmold technology, wherein inter alia an IMD-capable transfer film with a release layer of highly cross-linked plastic material is used. The decorated injection molded article formed has a high level of optical quality based on double-sided coating of a decorative element which is optionally joined to an auxiliary film web which is formed by a transfer layer of a transfer film and provides a decoration for the injection molded article, by means of injection molding.Type: GrantFiled: August 23, 2005Date of Patent: March 15, 2011Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Andreas Hirschfelder, Uwe Reuther
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Patent number: 7900678Abstract: The invention concerns an apparatus for applying at least one surface portion of a transfer layer of a transfer film to a web of material, wherein the apparatus has at least one support roller and at least one pressure roller for pressing the web of material and the transfer firm against the at least one support roller, wherein the at least one pressure roller is pneumatically or hydraulically resiliently supported by means of at least one resilient arrangement in the form of a diaphragm spring and wherein the apparatus has at least one adjusting device for varying a spring rate of the at least one resilient arrangement and thus for varying a pressure contact force of the at least one pressure roller against the at least one support roller, and the use of such an apparatus.Type: GrantFiled: June 10, 2005Date of Patent: March 8, 2011Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Reinwald Mitsam, Michael Gwosdz-Kaupmann
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Publication number: 20110003166Abstract: The invention concerns a process for producing a film element having mutually registered metallic layers (11, 16) and a film element which can be produced by such a process. A first metallic layer (11) provided on a first surface of a flexible single-layer or multi-layer carrier film (10) and a masking layer (13) provided on the second surface of the carrier film (10), opposite to the first surface, are structured in accurate register relationship with each other by means of mutually synchronised structuring procedures. After structuring of the first metallic layer (11) and the masking layer (13) one or more further layers are applied to the first metallic layer (11). Applied to the one or more further layers (15) is a second metallic layer (16) to which a first photoactivatable layer (17) is applied.Type: ApplicationFiled: February 28, 2009Publication date: January 6, 2011Applicant: LEONHARD KURZ STIFTUNG & CO. KGInventors: Ludwig Brehm, Haymo Katschorek, Norbert Laus
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Patent number: 7862880Abstract: The invention concerns a film, in particular a stamping film, laminating film or sticker film, which has at least one anisotropic polymer layer of an at least partially oriented liquid crystal material. The anisotropic polymer layer has one or more first regions which form a first security feature and in which the anisotropic polymer layer has properties which linearly polarise or which rotate the direction of rotation, and one or more second regions which form a second security element and in which the anisotropic polymer layer has circularly polarising properties. The first security feature is visualised when viewed through a first polariser and the second security feature is visualised when viewed through a second polariser responsive to a different polarisation state from that of the first polariser.Type: GrantFiled: April 13, 2005Date of Patent: January 4, 2011Assignee: Leonhard Kurz Stiftung & Co. KGInventors: Haymo Katschorek, Andreas Schilling, Mathias Seitz