Patents by Inventor Bernhard Wiedner
Bernhard Wiedner 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: 10046585Abstract: A micro-optical inspection arrangement comprises micro-focusing elements which are composite bodies consisting of a main part and an additional part and which have a reference focal length. The main parts are provided as micro-focusing element preforms, and the additional parts are formed from one or more functional coatings. The invention also relates to a method for producing such a micro-optical inspection arrangement and to a micro-optical displaying arrangement comprising the micro-optical inspection arrangement according to the invention and a microstructure arrangement, in particular a moiré magnification arrangement and a modulo magnification arrangement. The invention also relates to security elements and data carriers that have the micro-optical inspection arrangement according to the invention.Type: GrantFiled: December 20, 2011Date of Patent: August 14, 2018Assignee: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBHInventors: Winfried Hoffmuller, Michael Rahm, Theodor Burchard, Andreas Rauch, Rudolf Seidler, Anne Bucker, Armin Weingartner, Bernhard Wiedner, Christian Fuhse
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Patent number: 9243366Abstract: A method includes manufacturing a sheet-type substrate having a security thread in which a security thread having features spaced apart from one another in the longitudinal direction of the security thread is inserted into the substrate in such a way that it is at least partially embedded in the substrate. At least one of the features is displayed as an image after the embedding of the security thread. The stretch of the embedded security thread in the longitudinal direction is calculated based on the image of the at least one feature, and the region of the substrate in which the calculated stretch of the security thread exceeds a specified maximum stretch is obliterated depending on the calculated stretch.Type: GrantFiled: October 4, 2012Date of Patent: January 26, 2016Assignee: GIESECKE & DEVRIENT GMBHInventors: Andreas Pretsch, Bernhard Wiedner, Manfred Heim, Michael Dornfeld, Johannes Kemper, Johannes Beier
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Publication number: 20140332174Abstract: The present invention relates to a method for manufacturing a sheet-type substrate having a security thread, especially a banknote paper having a security thread, in which a) a security thread having features spaced apart from one another in the longitudinal direction of the security thread is inserted into the substrate in such a way that it is at least partially embedded in the substrate, b) at least one of the features is displayed as an image after the embedding of the security thread, c) the stretch of the embedded security thread in the longitudinal direction is calculated based on the image of the at least one feature, and d) the region of the substrate in which the calculated stretch of the security thread exceeds a specified maximum stretch is obliterated depending on the calculated stretch.Type: ApplicationFiled: October 4, 2012Publication date: November 13, 2014Inventors: Andreas Pretsch, Bernhard Wiedner, Manfred Heim, Michael Dörnfeld, Johannes Kemper, Johannes Beier
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Publication number: 20140238628Abstract: A method for manufacturing a security paper includes an endless microlens thread having a top and an opposing bottom with the top provided at least in fractional regions with microlenses. A paper web having a predetermined ridge pattern is produced and defines ridge regions in which the microlens is embedded in the interior of the paper, and that exhibits, lying between the ridge regions, window regions in which the microlens thread emerges at the surface of the paper web. The microlens thread is introduced into the paper web and, at the same time, is joined on its bottom and, in the ridge regions, also on its top with the paper web. The paper web with the microlens thread forms the security paper.Type: ApplicationFiled: September 4, 2012Publication date: August 28, 2014Inventors: Rudolf Seidler, Manfred Heim, Bernhard Wiedner, Michael Rahm
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Patent number: 8702906Abstract: The present invention relates to a dewatering screen for manufacturing paper having multi-level watermarks, having a carrier mold (54) that exhibits, in a fractional region, a multi-level relief (30) in the form of the watermark to be produced. According to the present invention, it is provided that the multi-level relief is formed by an injection-molded, perforated (40) watermark insert (30).Type: GrantFiled: December 10, 2012Date of Patent: April 22, 2014Assignee: Giesecke & Devrient GmbHInventors: Andre Gregarek, Andreas Hanelt, Bernhard Wiedner, Theodor Burchard, Andreas Aigner, Gunther Wild
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Patent number: 8573650Abstract: A method for manufacturing a security feature for a security element, a security paper or a data carrier that exhibits a substrate into which at least one through opening and at least one marking in registration with the through opening are to be introduced. The method includes the steps of providing a substrate with a laser-modifiable marking substance at least in the region of the marking to be produced and, in the same operation, introducing at least one through opening into the substrate by the action of laser radiation at higher laser power and modifying the laser-modifiable marking substance in the marking region by the action of laser radiation at a lower laser power to produce at least one marking in registration with the through opening.Type: GrantFiled: June 19, 2008Date of Patent: November 5, 2013Assignee: Giesecke & Devrient GmbHInventors: André Gregarek, Manfred Heim, Bernhard Wiedner
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Publication number: 20130270813Abstract: A micro-optical inspection arrangement comprises micro-focusing elements which are composite bodies consisting of a main part and an additional part and which have a reference focal length. The main parts are provided as micro-focusing element preforms, and the additional parts are formed from one or more functional coatings. The invention also relates to a method for producing such a micro-optical inspection arrangement and to a micro-optical displaying arrangement comprising the micro-optical inspection arrangement according to the invention and a microstructure arrangement, in particular a moiré magnification arrangement and a modulo magnification arrangement. The invention also relates to security elements and data carriers that have the micro-optical inspection arrangement according to the invention.Type: ApplicationFiled: December 20, 2011Publication date: October 17, 2013Applicant: GIESECKE & DEVRIENT GMBHInventors: Winfried Hoffmuller, Michael Rahm, Theodor Burchard, Andreas Rauch, Rudolf Seidler, Anne Bucker, Armin Weingartner, Bernhard Wiedner, Christian Fuhse
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Patent number: 8349132Abstract: The present invention relates to a dewatering screen for manufacturing paper having multi-level watermarks, having a carrier mold (54) that exhibits, in a fractional region, a multi-level relief (30) in the form of the watermark to be produced. According to the present invention, it is provided that the multi-level relief is formed by an injection-molded, perforated (40) watermark insert (30).Type: GrantFiled: December 5, 2007Date of Patent: January 8, 2013Assignee: Giesecke & Devrient GmbHInventors: Andre Gregarek, Andreas Hanelt, Bernhard Wiedner, Theodor Burchard, Andreas Aigner, Gunther Wild
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Patent number: 8317231Abstract: The present invention relates to a security element (20) for security papers, value documents and the like, having a substrate (22) and an opaque metallization 24, 26) arranged on the substrate. According to the invention in the security element is provided, that the metallization (24, 26) comprises a first opaque metal layer (24) and a second opaque metal layer (26) arranged above the first metal layer (24), and that the two metal layers (24, 26) have substantially the same tone of color in the visible spectral region.Type: GrantFiled: November 8, 2007Date of Patent: November 27, 2012Assignee: Giesecke & Devrient GmbHInventors: Manfred Heim, Bernhard Wiedner, Marius Dichtl, Mario Keller
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Publication number: 20100207376Abstract: The present invention relates to a security element (20) for security papers, value documents and the like, having a substrate (22) and an opaque metallization 24, 26) arranged on the substrate. According to the invention in the security element is provided, that the metallization (24, 26) comprises a first opaque metal layer (24) and a second opaque metal layer (26) arranged above the first metal layer (24), and that the two metal layers (24, 26) have substantially the same tone of color in the visible spectral region.Type: ApplicationFiled: November 8, 2007Publication date: August 19, 2010Inventors: Manfred Heim, Bernhard Wiedner, Marius Dichtl, Mario Keller
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Publication number: 20100164217Abstract: A method for manufacturing a security feature for a security element, a security paper or a data carrier that exhibits a substrate into which at least one through opening and at least one marking in registration with the through opening are to be introduced.Type: ApplicationFiled: June 19, 2008Publication date: July 1, 2010Applicant: GIESECKE & DEVRIENT GMBHInventors: André Gregarek, Manfred Heim, Bernhard Wiedner