Patents by Inventor Michael Rahm

Michael Rahm 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).

  • Publication number: 20130193679
    Abstract: (EN) The invention relates to an optically variable security element (20) for securing data carriers, having a flip image comprising first and second identifiers (24, 26) which can be detected from different first and second viewing directions (40, 42). According to the invention, the first and second identifiers (24, 26) of the flip image are present in an optically variable recording layer (30), which has a reflective layer (52) produced by a vacuum deposition process, and the security element (20) contains a viewing element screen (32) which is spaced apart from the recording layer (30) and which, when viewed from the first or second viewing direction (40, 42), reveals the first or second identifiers (24, 26), respectively.
    Type: Application
    Filed: July 18, 2011
    Publication date: August 1, 2013
    Inventors: Christian Fuhse, Manfred Heim, Michael Rahm, Günter Endres
  • Publication number: 20130099474
    Abstract: A security element for a security paper, value document or the like, having a carrier which has a motif region that includes a visually perceptible motif with a first and a second motif part, wherein the motif region includes a first micro-optic representation arrangement which presents at least two different images in viewing angle-dependent fashion as a first motif part, and a second micro-optic representation arrangement which presents a reflective surface as a second motif part, which surface appears bulged relative to the actual macroscopic spatial form of the second micro-optic representation arrangement.
    Type: Application
    Filed: June 29, 2011
    Publication date: April 25, 2013
    Inventors: Christian Fuhse, Michael Rahm, Andreas Rauch
  • Publication number: 20130093172
    Abstract: A security element (1) for a security paper, value document or the like, having a carrier (8) which has an areal region (3) which is divided into a multiplicity of pixels (4) which respectively includes at least one optically active facet (5), whereby the majority of the pixels (4) respectively have several of the optically active facets (5) of identical orientation per pixel (4), and the facets (5) are so oriented that the areal region (3) is perceptible to a viewer as an area that protrudes and/or recedes relative to its actual spatial form.
    Type: Application
    Filed: December 3, 2010
    Publication date: April 18, 2013
    Applicant: Giesecke & Devrient GmbH
    Inventors: Christian Fuhse, Michael Rahm, Andreas Rauch, Witttich Kaule
  • Publication number: 20130063826
    Abstract: A method for producing a microstructure on a carrier by: (a) manufacturing a donor foil by forming an embossed structure with elevations and depressions in a first foil material and applying a transfer layer to the embossed structure, (b) manufacturing an acceptor foil by applying an adhesive layer to a second foil material, (c) laminating the donor foil and the acceptor foil by means of the adhesive layer, the transfer layer on the elevations of the embossed structure bonding to the adhesive layer, and (d) transferring the bonded regions of the transfer layer to the acceptor foil by separating the donor foil and the acceptor foil from each other, thereby forming in the acceptor foil a first microstructure from the transferred regions of the transfer layer, and/or forming in the donor foil a second microstructure complementary to the first microstructure.
    Type: Application
    Filed: May 5, 2011
    Publication date: March 14, 2013
    Applicant: Giesecke & Devrient GmbH
    Inventors: Winfried Hoffmuller, Theodor Burchard, Michael Rahm, Josef Schinabeck, Manfred Heim, Andreas Rauch, Christian Fuhse
  • Publication number: 20120319395
    Abstract: A security element for a security paper, value document or the like, having a carrier which has a reflective areal region which is divided into a multiplicity of reflective pixels. The area of each pixel is smaller than the area of the reflective areal region by at least one order of magnitude. Each pixel has at least one reflective facet which is formed in a surface of the carrier, and the at least one reflective facet reflects light incident along a predetermined direction on the areal region directionally in a reflection direction predefined by the orientation of the facet. The orientations of the facets of different pixels have a substantially random variation over the reflective areal region.
    Type: Application
    Filed: December 3, 2010
    Publication date: December 20, 2012
    Inventors: Christian Fuhse, Manfred Heim, Michael Rahm, Andreas Rauch, Stefan Bichlmeier
  • Publication number: 20120228860
    Abstract: The invention relates to a security element for security papers, value documents and the like with at least one microstructure which has a visual appearance that is viewing angle-dependent in transmission, whereby the at least one microstructure is formed from an arrangement of a multiplicity of structure elements with a characteristic structure spacing of 1 ?m or more. According to the invention it is provided that the security element contains at least one motif image which, through the viewing angle-dependent visual appearance of the microstructure, is visible in transmission from certain viewing angles, and invisible in transmission from other viewing angles, and that the microstructure and the motif image together have a thickness of 50 ?m or less.
    Type: Application
    Filed: November 15, 2010
    Publication date: September 13, 2012
    Applicant: Giesecke & Devrient GmbH
    Inventors: Andreas Rauch, Michael Rahm, Manfred Heim, Christian Fuhse
  • Publication number: 20120170124
    Abstract: The present invention relates to a thin-film element (30) having an interference layer structure for security papers, value documents and the like, having at least two semitransparent absorber layers (34, 38) and at least one dielectric spacing layer (36) arranged between the at least two absorber layers. According to the present invention, it is provided that the two absorber layers (34, 38) are each formed from a material having a complex refractive index N whose real part n and imaginary part k differ at least in a portion of the visible spectral range by a factor of 5 or more.
    Type: Application
    Filed: September 10, 2010
    Publication date: July 5, 2012
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Christian Fuhse, Michael Rahm, Manfred Heim, Ralf Liebler
  • Publication number: 20120153607
    Abstract: The invention relates to a security element for an article to be protected, having an upper face and a lower face, one or more imaging optical arrangements, which all image a respective associated object to a magnified scale only in front of the upper face, wherein the one optical arrangement or at least one of the optical arrangements comprises a plurality of reflective micro-imaging elements arranged two-dimensionally in a first pattern, and the associated object is in the form of a microstructure object having a plurality of microstructures, which are arranged in a microstructure pattern so matched to the first pattern that the microstructure object is imaged to a magnified scale in front of the upper face by means of the reflective micro-imaging elements.
    Type: Application
    Filed: July 15, 2010
    Publication date: June 21, 2012
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Michael Rahm, Wittich Kaule, Manfred Heim, Andreas Rauch, Josef Schinabeck, André Gregarek, Angelika Hilgenrainer
  • Publication number: 20120098249
    Abstract: The invention relates to a security element for security papers, value documents or the like, with a carrier having an upper side and a lower side and comprising several reflective first micro-imaging elements flatly arranged in a first pattern, and second micro-imaging elements flatly arranged in a second pattern, a first microstructure object which contains several first microstructures which are arranged in a first microstructure pattern so adapted to the first pattern that the first microstructure object is imaged in magnified form in front of the upper side by means of the first micro-imaging elements, and a second microstructure object which contains several second microstructures which are arranged in a second microstructure pattern so adapted to the second pattern that the second microstructure object is imaged in magnified form in front of the underside by means of the second micro-imaging elements.
    Type: Application
    Filed: May 12, 2010
    Publication date: April 26, 2012
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Michael Rahm, Wittich Kaule, Manfred Heim, Andreas Rauch, Josef Schinabeck, André Gregarek, Angelika Hilgenrainer
  • Publication number: 20110157183
    Abstract: The invention relates to a depiction arrangement for security papers, value documents, electronic display devices or other data carriers, having a grid image arrangement for depicting a target image (40) that is broken down into two or more partial target images (42, 44), having a motif image that is subdivided into a plurality of periodically or at least locally periodically arranged cells (24) in each of which are arranged mapped regions of one or more of the partial target images (42, 44), a viewing grid (22), composed of a plurality of viewing grid elements, that, when the motif image is viewed, reconstructs the complete target image (40) from the mapped regions arranged in the cells (24), the motif image being, independently of the cell subdivision, split into at least first and second microinformation regions (60, 62) in which the cells each include different combinations of mapped regions of the partial target images (40, 42), and the microinformation regions (60, 62) being arranged in the shape of
    Type: Application
    Filed: August 19, 2009
    Publication date: June 30, 2011
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Wittich Kaule, Michael Rahm, Wolfgang Rauscher
  • Publication number: 20110045248
    Abstract: The present invention relates to a method for producing a micropattern on a substrate (22), in which a substrate (22) is provided with a relief pattern (26, 28) that exhibits elevations (26) and depressions (28), and in which the elevations (26) and/or depressions (26) are arranged in the form of the desired micropattern, and with a printing tool, an imprint material (30; 34) is transferred to the relief pattern (26, 28), the viscosity of the imprint material (30; 34) being chosen such that the imprint material (30; 34) is selectively transferred either substantially only onto the elevations (26) or substantially only into the depressions (28) of the relief pattern.
    Type: Application
    Filed: December 17, 2008
    Publication date: February 24, 2011
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Winfried HOFFMULLER, Theodor BURCHARD, Marius DICHTL, Patrick RENNER, Michael RAHM, Manfred HEIM, Lars HOFFMANN, Manfred DOTZLER, Ralf LIEBLER, Mario KELLER
  • Publication number: 20110027538
    Abstract: The present invention relates to a method for producing, for the depiction of a specified motif, a micro-optical depiction arrangement (30) that exhibits a colored motif grid, composed of a plurality of micromotif elements (50, 52), and a focusing element grid, composed of a plurality of microfocusing elements (40), that reconstructs the specified motif when the micromotif elements (50, 52) are viewed, and in the method, T1) a first substrate foil (32) having opposing main surfaces (34, 36) is provided, and an embossing lacquer (38) is applied on a first main surface (34) of the first substrate foil (32) and is embossed in the form of the focusing element grid composed of an at least locally periodic arrangement of a plurality of microfocusing elements (40), T2) a second substrate foil (42) having opposing main surfaces (44, 46) is provided, and an arrangement of colored micromotif elements (50, 52) is produced in the form of the motif grid on a first main surface (44) of the second substrate foil (42), and
    Type: Application
    Filed: April 1, 2009
    Publication date: February 3, 2011
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Lars Hoffmann, Manfred Dotzler, Manfred Heim, Marius Dichtl, Michael Rahm, Ralf Liebler
  • Publication number: 20100307705
    Abstract: The present invention relates to a security element (20) for security papers, value documents and the like, having a feature region (24) that selectively influences incident electromagnetic radiation (30). According to the present invention, it is provided that the feature region (24) includes metallic nanopatterns (28) in which volume or surface plasmons are excited and/or resonance effects are caused by the incident electromagnetic radiation (30).
    Type: Application
    Filed: December 17, 2008
    Publication date: December 9, 2010
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Michael Rahm, Marius Dichtl, Manfred Heim, Hans Lochbihler, Thomas Kampfe, Thomas Pertsch, Jorg Petschulat, Ernst-Bernhard Kley
  • Publication number: 20100194091
    Abstract: The present invention relates to a see-through security element (12), for security papers, value documents and the like, having at least one micropattern having a visual appearance that is viewing-angle dependent when looked through (26, 28). According to the present invention, the at least one micropattern is formed from an arrangement of a plurality of pattern elements (24) having a characteristic pattern spacing of 1 ?m or more, and the see-through security element (12) exhibits a total thickness of 50 ?m or less.
    Type: Application
    Filed: October 16, 2007
    Publication date: August 5, 2010
    Inventors: Manfred Heim, Marius Dichtl, Michael Rahm
  • Publication number: 20100182221
    Abstract: The present invention relates to a depiction arrangement for security papers, value documents, electronic display devices or other data carriers, having a raster image arrangement for depicting a planar target image that is given by an image function f(x,y), having a motif image that is subdivided into a plurality of cells (24), in each of which are arranged imaged regions of the target image, a viewing grid (22) composed of a plurality of viewing elements for reconstructing the target image when the motif image is viewed with the aid of the viewing grid (22), the motif image exhibiting, with its subdivision into a plurality of cells, an image function m(x,y) that is given by m ? ( x , y ) = f ? ( ( x y ) + ( A ? ( x , y ) - I ) · ( ( ( ( x y ) + w d ? ( x , y ) ) ? mod ? W ) - w d ? ( x , y ) - w c ? ( x , y ) ) ) · g ? ( x , y ) where w d ? ( x , y ) = W · (
    Type: Application
    Filed: June 25, 2008
    Publication date: July 22, 2010
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Wittich Kaule, Michael Rahm, Wolfgang Rauscher
  • Publication number: 20100177094
    Abstract: The present invention relates to a depiction arrangement for security papers, value documents, electronic display devices or other data carriers, having a raster image arrangement for depicting a specified three-dimensional solid (30) that is given by a solid function f(x,y,z), having a motif image that is subdivided into a plurality of cells (24), in each of which are arranged imaged regions of the specified solid (30), a viewing grid (22) composed of a plurality of viewing elements for depicting the specified solid (30) when the motif image is viewed with the aid of the viewing grid (22), the motif image exhibiting, with its subdivision into a plurality of cells (24), an image function m(x,y) that is given by m ? ( x , y ) = f ? ( x K y K z K ? ( x , y , x m , y m ) ) · g ? ( x , y ) , ? where ? ( x K y K ) = ( x y ) + V ? ( x , y , x m , y m ) · ( ( ( ( x y ) +
    Type: Application
    Filed: June 25, 2008
    Publication date: July 15, 2010
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Wittich Kaule, Michael Rahm, Wolfgang Rauscher
  • Publication number: 20080258456
    Abstract: The present invention relates to an optically variable security element (20) for securing valuable articles, having an achromatically reflective micropattern in the form of a mosaic (22) composed of a plurality of achromatically reflective mosaic elements (26-1, 26-2) that are characterized by the parameters size, contour shape, relief shape, reflectivity and spatial orientation and that form a predefined motif in that different groups of mosaic elements (26-1, 26-2) having different characteristic parameters reflect incident light (28) in different spatial regions (30). Said mosaic elements (26-1, 26-2) exhibit a lateral dimension below the resolution limit of the eye.
    Type: Application
    Filed: December 7, 2006
    Publication date: October 23, 2008
    Applicant: GIESECKE & DEVRIENT GMBH
    Inventors: Michael Rahm, Marius Dichtl, Manfred Heim