Patents by Inventor Andreas M. Geldmacher
Andreas M. Geldmacher 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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Publication number: 20230306222Abstract: The present disclosure includes in one instance an optical article comprising a data rich plurality of retroreflective elements that are configured in a spatially defined arrangement, where the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, and where data rich means information that is readily machine interpretable. The present disclosure also includes a system comprising the previously mentioned optical article, an optical system, and an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.Type: ApplicationFiled: April 4, 2023Publication date: September 28, 2023Inventors: Michael A. McCoy, Glenn E. Casner, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Charles A. Shaklee, Robert W. Shannon, Gautam Singh, Guruprasad Somasundaram, Andrew H. Tilstra, John A. Wheatley, Caroline M. Ylitalo, Arash Sangari, Alexandra R. Cunliffe, Jonathan D. Gandrud, Kui Chen-Ho, Travis L. Potts, Maja Giese, Andreas M. Geldmacher, Katja Hansen, Markus G.W. Lierse, Neeraj Sharma
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Patent number: 11651179Abstract: The present disclosure includes in one instance an optical article comprising a data rich plurality of retroreflective meats that are configured in a spatially defined arrangement, where the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, and where data rich means information that is readily machine interpretable. The present disclosure also includes a system comprising the previously mentioned optical article, an optical system, and an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.Type: GrantFiled: September 27, 2017Date of Patent: May 16, 2023Assignee: 3M Innovative Properties CompanyInventors: Michael A. McCoy, Glenn E. Casner, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Charles A. Shaklee, Robert W. Shannon, Gautam Singh, Guruprasad Somasundaram, Andrew H. Tilstra, John A. Wheatley, Caroline M. Ylitalo, Arash Sangari, Alexandra R. Cunliffe, Jonathan D. Gandrud, Kui Chen-Ho, Travis L. Potts, Maja Giese, Andreas M. Geldmacher, Katja Hansen, Markus G. W. Lierse, Neeraj Sharma
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Publication number: 20220380260Abstract: The present disclosure provides a method of making a ceramic article. The method includes (a) obtaining a photopolymerizable slurry or sol including a plurality of ceramic particles distributed in the photopolymerizable slurry or sol and (b) selectively polymerizing the photopolymerizable slurry or sol using actinic radiation and continuous movement of a build substrate through the photopolymerizable slurry or sol to form a gelled article. The method also includes (c) extracting solvent from the gelled article to form an aerogel article or a xerogel article; (d) heat treating the aerogel article or the xerogel article to form a porous ceramic article; and (e) sintering the porous ceramic article to form a sintered ceramic article. The sintered ceramic article exhibits a particular density. Further, additive manufactured ceramic articles are provided that exhibit a particular density, opacity, or both.Type: ApplicationFiled: August 3, 2020Publication date: December 1, 2022Inventors: Amy T. Shah, James D. Hansen, David B. Stegall, Alexander J. Huffman, Gareth A. Hughes, Melissa A. Lackey, Kathleen M. Humpal, Andreas M. Geldmacher, Kristen F. Keller
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Patent number: 11383350Abstract: Metal bond abrasive articles and methods of making metal bond abrasive articles via a focused beam are disclosed. In an aspect, a metal bond abrasive article includes a metallic binder material having abrasive particles retained therein, where the abrasive particles have at least one coating disposed thereon. The coating includes a metal, a metal oxide, a metal carbide, a metal nitride, a metalloid, or combinations thereof, and the at least one coating has an average thickness of 0.5 micrometers or greater. The metal bond abrasive article includes a number of layers directly bonded to each other. Metal bond abrasive articles prepared by the method can include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.Type: GrantFiled: January 25, 2018Date of Patent: July 12, 2022Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Jean-Luc Rifaut, Badri Veeraraghavan, Tilo Remhof, Brian D. Goers, Andreas M. Geldmacher, Robert L. W. Smithson, Przemyslaw P. Markowicz, Johannes Fink
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Patent number: 11060848Abstract: A device comprising an imaging unit for capturing an image of a target object and of an accessory. The accessory comprises a reference target object having a known retroreflective coefficient. The device also comprises a calculating unit for calculating a value of a retroreflective coefficient of the target object based on a comparison of the image of the target to the image of the accessory.Type: GrantFiled: January 30, 2020Date of Patent: July 13, 2021Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Fumio Karasawa, Andreas M. Geldmacher, Guruprasad Somasundaram
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Patent number: 10758126Abstract: A dental light irradiation device has sensing means for sensing a change of a position of the device, and an indicator for physically indicating the position change. The invention helps controlling the positioning of the device during use.Type: GrantFiled: March 31, 2016Date of Patent: September 1, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Andreas M. Geldmacher, Korbinian Gerlach, Johannes Fink, Stefan K. Welker
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Publication number: 20200166332Abstract: A device comprising an imaging unit for capturing an image of a target object and of an accessory. The accessory comprises a reference target object having a known retroreflective coefficient. The device also comprises a calculating unit for calculating a value of a retroreflective coefficient of the target object based on a comparison of the image of the target to the image of the accessory.Type: ApplicationFiled: January 30, 2020Publication date: May 28, 2020Inventors: Fumio Karasawa, Andreas M. Geldmacher, Guruprasad Somasundaram
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Patent number: 10571250Abstract: Problem: To provide a device, system, method, and program able to easily measure retroreflective coefficients using a commercially available mobile terminal having an imaging unit. Resolution Means: A device is provided that has an imaging unit for capturing an image of a target object, an observation angle acquiring unit for acquiring an observation angle determined by a positional relationship between the imaging unit, a light source for emitting light for capture and the target object, an entrance angle acquiring unit for acquiring an entrance angle of light emitted for capture incident on the target object, a converting unit for converting image data of an image to a luminance value of the target object using capture information of the image, and a calculating unit for calculating a value of a retroreflective coefficient of the target object based on an illuminance value and the luminance value of the target object.Type: GrantFiled: June 28, 2016Date of Patent: February 25, 2020Assignee: 3M Innovative Properties CompanyInventors: Fumio Karasawa, Andreas M. Geldmacher, Guruprasad Somasundaram
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Publication number: 20190391304Abstract: The present disclosure includes in one instance an optical article comprising a data rich plurality of retroreflective meats that are configured in a spatially defined arrangement, where the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties, and where data rich means information that is readily machine interpretable. The present disclosure also includes a system comprising the previously mentioned optical article, an optical system, and an inference engine for interpreting and classifying the plurality of retroreflective elements wherein the optical system feeds data to the inference engine.Type: ApplicationFiled: September 27, 2017Publication date: December 26, 2019Inventors: Michael A. McCoy, Glenn E. Casner, Anne C. Gold, Silvia Geciova-Borovova Guttmann, Charles A. Shaklee, Robert W. Shannon, Gautam Singh, Guruprasad Somasundaram, Andrew H. Tilstra, John A. Wheatley, Caroline M. Ylitalo, Arash Sangari, Alexandra R. Cunliffe, Jonathan D. Gandrud, Kui Chen-Ho, Travis L. Potts, Maja Giese, Andreas M. Geldmacher, Katja Hansen, Markus G.W. Lierse, Neeraj Sharma
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Publication number: 20190375072Abstract: Metal bond abrasive articles and methods of making metal bond abrasive articles via a focused beam are disclosed. In an aspect, a metal bond abrasive article includes a metallic binder material having abrasive particles retained therein, where the abrasive particles have at least one coating disposed thereon. The coating includes a metal, a metal oxide, a metal carbide, a metal nitride, a metalloid, or combinations thereof, and the at least one coating has an average thickness of 0.5 micrometers or greater. The metal bond abrasive article includes a number of layers directly bonded to each other. Metal bond abrasive articles prepared by the method can include abrasive articles having arcuate or tortuous cooling channels, abrasive segments, abrasive wheels, and rotary dental tools.Type: ApplicationFiled: January 25, 2018Publication date: December 12, 2019Inventors: Jean-Luc Rifaut, Badri Veeraraghavan, Tilo Remhof, Brian D. Goers, Andreas M. Geldmacher, Robert L.W. Smithson, Przemyslaw P. Markowicz, Johannes Fink
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Publication number: 20190344496Abstract: The method of making a three-dimensional article includes heating a composition comprising a fluoropolymer and inorganic filler, extruding the composition in molten form from an extrusion head to provide at least a portion of a first layer of the three-dimensional article, and extruding at least a second layer of the composition in molten form from the extrusion head onto at least the portion of the first layer to make at least a portion of the three-dimensional article. Three-dimensional articles are also described. A composition including a fluoropolymer and inorganic fillers is also described. The composition may be a filament. The composition can be useful, for example, in melt extrusion additive manufacturing. The fluoropolymer is semi-crystalline with a melting point of up to 325° C. and less than 50 percent by weight interpolymerized units of vinylidene fluoride or amorphous with a glass transition temperature of up to 280° C.Type: ApplicationFiled: December 19, 2017Publication date: November 14, 2019Inventors: Jeffrey N. Bartow, Michael C. Dadalas, Carsten Franke, Bernd Gangnus, Andreas M. Geldmacher, Gabriele H. Gottschalk-Gaudig, Klaus Hintzer, Malte Korten, Per M. Nelson, Gallus Schechner, Sebastian F. Zehentmaier, Fee Zentis
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Publication number: 20190339063Abstract: Problem: To provide a device, system, method, and program able to easily measure retroreflective coefficients using a commercially available mobile terminal having an imaging unit. Resolution Means: A device is provided that has an imaging unit for capturing an image of a target object, an observation angle acquiring unit for acquiring an observation angle determined by a positional relationship between the imaging unit, a light source for emitting light for capture and the target object, an entrance angle acquiring unit for acquiring an entrance angle of light emitted for capture incident on the target object, a converting unit for converting image data of an image to a luminance value of the target object using capture information of the image, and a calculating unit for calculating a value of a retroreflective coefficient of the target object based on an illuminance value and the luminance value of the target object.Type: ApplicationFiled: June 28, 2016Publication date: November 7, 2019Inventors: Fumio Karasawa, Andreas M. Geldmacher, Guruprasad Somasundaram
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Publication number: 20180092543Abstract: A dental light irradiation device has sensing means for sensing a change of a position of the device, and an indicator for physically indicating the position change. The invention helps controlling the positioning of the device during use.Type: ApplicationFiled: March 31, 2016Publication date: April 5, 2018Inventors: Andreas M. Geldmacher, Korbinian Gerlach, Johannes Fink, Stefan K. Welker