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: 20240424822
    Abstract: An optically variable representation element with a reflective surface region generates a respective three-dimensional representation for at least two different observation directions. The reflective surface region contains a respective multiplicity of reflective facets in a first and a second partial region, which at least partially overlap one another. The reflective facets are oriented such that the facets in the first partial region generate a first three-dimensional representation from the first observation direction and the facets in the second partial region generate a second three-dimensional representation from the second observation direction. The facets of the reflective surface region are provided at least regionally with sub-wavelength structures which generate the different colors of the three-dimensional representations in the overlap region.
    Type: Application
    Filed: May 17, 2022
    Publication date: December 26, 2024
    Inventors: Christian FUHSE, Christian STOCKL, Moritz HOFER, Matthias BLAZEK, Michael RAHM
  • Patent number: 12129382
    Abstract: A platelet-shaped magnetic effect pigment is provided for use in a printing ink, and includes a layer construction with a magnetic layer and at least one optical functional layer, such that the magnetic layer is based on a magnetic material having a column-shaped nanostructure and the magnetic columns respectively have a largely uniform preferential magnetic direction deviating from the platelet plane.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 29, 2024
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Michael Rahm, Manfred Heim, Raphael Dehmel, Winfried Hoffmuller
  • Publication number: 20240262122
    Abstract: An optically variable security element has a motif region including a plurality of differently oriented first facets and a plurality of differently oriented second facets arranged in the motif region. Each of the first and second facets defines a normal vector having a first orientation component and a second orientation component. The color impression of the at least one motif is determined by the first orientation components. The representation of the at least one motif is defined by the second orientation components. The first orientation components of the first facets and the second facets are different from one another.
    Type: Application
    Filed: May 24, 2022
    Publication date: August 8, 2024
    Inventors: Moritz HOFER, Christian STOCKL, Matthias BLAZEK, Christian FUHSE, Michael RAHM
  • Patent number: 11745474
    Abstract: A composite glass comprises two glass and/or plastic plates and an intermediate foil arranged between the glass and/or plastic plates. The composite glass, due to the intermediate foil, is configured differently in a side-dependent manner, by appearing to a viewer more transparent from an inner side than from an outer side. The composite glass, due to the intermediate foil, appears to the viewer different in a viewing angle-dependent manner from the outer side.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: September 5, 2023
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Maik Rudolf Johann Scherer, Raphael Dehmel, Kai Herrmann Scherer, Daniel Lenssen, Michael Rahm, Mario Keller
  • Patent number: 11702548
    Abstract: A method for producing pigments having a specified contour, comprises the steps of creating a pigment layer on a starting substrate; detaching from the starting substrate; and structuring the pigment layer into a plurality of the pigments; characterized by bringing into contact the pigment layer with an intermediate substrate, wherein the pigment layer adheres at least in sections to the intermediate substrate; and separating intermediate substrate and starting substrate.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: July 18, 2023
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Christian Fuhse, Manfred Heim, Patrick Renner, Michael Rahm, Thomas Mang, Christoph Mengel, Peter Schiffmann, Maik Rudolf Johann Scherer, Christoph Hunger
  • Patent number: 11654709
    Abstract: An optically variable security element has a multicolored, reflective areal region including a first relief structure disposed at a higher level than a second relief structure. The first relief structure has a first ink coating and the second relief structure has a second, different ink coating. The two relief structures overlap in an overlap region. The first ink coating of the first relief structure is disposed at a higher level in the overlap region and has at least one recess the dimension of which is more than 140 ?m. The first ink coating comprises an edge region adjoining the recess, and as a bicolor register feature the first relief structure lets the edge region of the first ink coating appear with a first color impression and the second relief structure through the recess lets the second ink coating appear with a second, different color impression in mutual register.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 23, 2023
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Kai Herrmann Scherer, Maik Rudolf Johann Scherer, Raphael Dehmel, Michael Rahm, Giselher Dorff, Andreas Rauch, Christian Fuhse, Tobias Sattler
  • Patent number: 11623465
    Abstract: An optically variable security element wherein the areal expansion whereof defines a z direction standing perpendicularly thereon, and has a multicolored, reflective areal region. The areal region includes two relief structures arranged at different height levels in the z direction. The relief structures are each supplied with an ink coating which produce a different color impression. The ink coating of the relief structure disposed at a higher level is configured in the feature region as a regular or irregular grid with grid elements and grid spaces. The dimensions of the grid elements and/or grid spaces are below 140 ?m at least in one direction, so that, in the feature region, for a viewer from at least one viewing angle, the ink coating of the relief structure disposed at a lower level is visible through the grid spaces of the ink coating of the relief structure disposed at a higher level.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: April 11, 2023
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Kai Hermann Scherer, Maik Rudolf Johann Scherer, Raphael Dehmel, Michael Rahm, Giselher Dorff, Andreas Rauch, Christian Fuhse, Tobias Sattler
  • Patent number: 11602949
    Abstract: A method for manufacturing a value document includes: providing a value document substrate; printing the value document substrate with magnetically orientable effect pigments which are dispersed in a UV-curable lacquer; the step of exposing the lacquer containing the magnetically orientable effect pigments to a dynamic magnetic field; the step of irradiating the lacquer containing the effect pigments with UV radiation; and optionally the step of embossing the cured or at least partially cured UV lacquer.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 14, 2023
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Tobias Sattler, Karlheinz Mayer, Maik Rudolf Johann Scherer, Kai Hermann Scherer, Raphael Dehmel, Christian Fuhse, Michael Rahm, Manfred Heim, Matthias Pfeiffer, Yana Kisselova-Weckerle, Thomas Mang, Jorg Anders
  • Publication number: 20230001735
    Abstract: A platelet-shaped magnetic effect pigment for use in a printing ink, includes a layer construction with a magnetic layer and at least one optical functional layer. The magnetic layer is based on magnetic particles fixed within a solid matrix and having a largely uniform preferential magnetic direction deviating from the platelet plane.
    Type: Application
    Filed: November 20, 2020
    Publication date: January 5, 2023
    Inventors: Michael RAHM, Manfred HEIM, Raphael DEHMEL, Winfried HOFFMULLER
  • Publication number: 20220403177
    Abstract: A platelet-shaped magnetic effect pigment is provided for use in a printing ink, and includes a layer construction with a magnetic layer and at least one optical functional layer, such that the magnetic layer is based on a magnetic material having a column-shaped nanostructure and the magnetic columns respectively have a largely uniform preferential magnetic direction deviating from the platelet plane.
    Type: Application
    Filed: November 20, 2020
    Publication date: December 22, 2022
    Inventors: Michael RAHM, Manfred HEIM, Raphael DEHMEL, Winfried HOFFMULLER
  • Publication number: 20220059374
    Abstract: The invention relates to a method and a device for mounting and fastening individual elements at predetermined positions on a surface of a moving substrate web. According to the invention, the device has a rotary cylinder or a circulating belt, wherein the rotary cylinder or the circulating belt has an inner side and an outer side and wherein a particular number m of fastening devices are attached to the outer side of the rotary cylinder or of the circulating belt. Here, in each case one fastening device fastens in each case one individual element at in each case one predetermined position on the surface of the moving substrate web.
    Type: Application
    Filed: December 3, 2019
    Publication date: February 24, 2022
    Inventors: Mario KELLER, Maik Rudolf Johann SCHERER, Michael RAHM
  • Publication number: 20220055853
    Abstract: The invention relates to a method for applying and attaching a defined number n of individual elements to a defined number m of predefined positions on a surface of a moving substrate web. The invention further relates to a moving substrate web onto which a defined number n of individual elements are to be applied and attached to a defined number m of predefined positions on a surface of a moving substrate web. According to the invention, an adhesive is applied to the surface of the substrate web at each of the predefined positions so that respectively at least one individual element can be attached at respectively one predefined position, and no adhesive is applied outside the predefined positions.
    Type: Application
    Filed: November 29, 2019
    Publication date: February 24, 2022
    Inventors: Mario KELLER, Maik Rudolf Johann SCHERER, Michael RAHM
  • Publication number: 20210339504
    Abstract: A composite glass comprises two glass and/or plastic plates and an intermediate foil arranged between the glass and/or plastic plates. The composite glass, due to the intermediate foil, is configured differently in a side-dependent manner, by appearing to a viewer more transparent from an inner side than from an outer side. The composite glass, due to the intermediate foil, appears to the viewer different in a viewing angle-dependent manner from the outer side.
    Type: Application
    Filed: September 2, 2019
    Publication date: November 4, 2021
    Inventors: Maik Rudolf Johann SCHERER, Raphael DEHMEL, Kai Herrmann SCHERER, Daniel LENSSEN, Michael RAHM, Mario KELLER
  • Publication number: 20210283939
    Abstract: An optically variable security element has a multicolored, reflective areal region including a first relief structure disposed at a higher level than a second relief structure. The first relief structure has a first ink coating and the second relief structure has a second, different ink coating. The two relief structures overlap in an overlap region. The first ink coating of the first relief structure is disposed at a higher level in the overlap region and has at least one recess the dimension of which is more than 140 ?m. The first ink coating comprises an edge region adjoining the recess, and as a bicolor register feature the first relief structure lets the edge region of the first ink coating appear with a first color impression and the second relief structure through the recess lets the second ink coating appear with a second, different color impression in mutual register.
    Type: Application
    Filed: July 9, 2019
    Publication date: September 16, 2021
    Inventors: Kai Herrmann SCHERER, Maik Rudolf Johann SCHERER, Raphael DEHMEL, Michael RAHM, Giselher DORFF, Andreas RAUCH, Christian FUHSE, Tobias SATTLER
  • Publication number: 20210268825
    Abstract: An optically variable security element wherein the areal expansion whereof defines a z direction standing perpendicularly thereon, and has a multicolored, reflective areal region. The areal region includes two relief structures arranged at different height levels in the z direction. The relief structures are each supplied with an ink coating which produce a different color impression. The ink coating of the relief structure disposed at a higher level is configured in the feature region as a regular or irregular grid with grid elements and grid spaces. The dimensions of the grid elements and/or grid spaces are below 140 ?m at least in one direction, so that, in the feature region, for a viewer from at least one viewing angle, the ink coating of the relief structure disposed at a lower level is visible through the grid spaces of the ink coating of the relief structure disposed at a higher level.
    Type: Application
    Filed: July 9, 2019
    Publication date: September 2, 2021
    Inventors: Kai Hermann SCHERER, Maik Rudolf Johann SCHERER, Raphael DEHMEL, Michael RAHM, Giselher DORFF, Andreas RAUCH, Christian FUHSE, Tobias SATTLER
  • Publication number: 20210229484
    Abstract: A method for manufacturing a value document includes: providing a value document substrate; printing the value document substrate with magnetically orientable effect pigments which are dispersed in a UV-curable lacquer; the step of exposing the lacquer containing the magnetically orientable effect pigments to a dynamic magnetic field; the step of irradiating the lacquer containing the effect pigments with UV radiation; and optionally the step of embossing the cured or at least partially cured UV lacquer.
    Type: Application
    Filed: May 28, 2019
    Publication date: July 29, 2021
    Inventors: Tobias SATTLER, Karlheinz MAYER, Maik Rudolf Johann SCHERER, Kai Hermann SCHERER, Raphael DEHMEL, Christian FUHSE, Michael RAHM, Manfred HEIM, Matthias PFEIFFER, Yana KISSELOVA-WECKERLE, Thomas MANG, Jorg ANDERS
  • Patent number: 11034182
    Abstract: A platelet-shaped pigment with a layer construction comprises the following layers in the order, optionally a carrier substrate; a transparent embossing lacquer layer with an embossed relief structure; a reflection-increasing coating which follows the relief structure and forms a reflecting microstructure, wherein the reflecting microstructure is present in the form of a mosaic of a multiplicity of reflecting mosaic elements and the reflecting mosaic elements do not reflect the incident light in the direction of the specular reflex, regarding the plane of the platelet, but in a spatial direction deviating therefrom and respectively have a lateral dimension 1 greater than 2 ?m.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: June 15, 2021
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Christian Fuhse, Michael Rahm, Manfred Heim, Patrick Renner, Peter Schiffmann, Christoph Mengel
  • Publication number: 20210070088
    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: November 16, 2020
    Publication date: March 11, 2021
    Inventors: Christian FUHSE, Michael RAHM, Andreas RAUCH
  • Publication number: 20210060996
    Abstract: A platelet-shaped pigment with a layer construction comprises the following layers in the order, optionally a carrier substrate; a transparent embossing lacquer layer with an embossed relief structure; a reflection-increasing coating which follows the relief structure and forms a reflecting microstructure, wherein the reflecting microstructure is present in the form of a mosaic of a multiplicity of reflecting mosaic elements and the reflecting mosaic elements do not reflect the incident light in the direction of the specular reflex, regarding the plane of the platelet, but in a spatial direction deviating therefrom and respectively have a lateral dimension 1 greater than 2 ?m.
    Type: Application
    Filed: September 19, 2018
    Publication date: March 4, 2021
    Inventors: Christian FUHSE, Michael RAHM, Manfred HEIM, Patrick RENNER, Peter SCHIFFMANN, Christoph MENGEL
  • Patent number: 10870305
    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: Grant
    Filed: June 29, 2011
    Date of Patent: December 22, 2020
    Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
    Inventors: Christian Fuhse, Michael Rahm, Andreas Rauch