Patents by Inventor Georg Hejtmann

Georg Hejtmann 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).

  • Patent number: 10991643
    Abstract: The invention relates to a power module. The power module has at least one power semiconductor and at least one further electronic component. The power module has a housing which is formed by a shaped body and is formed by an encapsulation compound. According to the invention, the housing is formed in at least two levels. At least one power semiconductor component is arranged in a first level and the at least one further electronic component is arranged in the second level. At least one electrically conductive layer, which forms an electrically conductive connecting structure, is formed on a surface of an inner boundary of the power module which extends between the levels. The connecting structure is applied directly to the surface. The at least one further electronic component is electrically conductively connected, in particular soldered or sintered, to the wiring structure.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 27, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Georg Hejtmann, Martin Rittner, Nicolas Maier, Uwe Glanz
  • Patent number: 10937714
    Abstract: An electrical device includes an electrical component that is at least partially covered by a covering material that includes a cement material. The covering material also includes particles having a first material and fibers having a second material. The first material and the second material each possess a higher coefficient of thermal conductivity than the cement of the cement material.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: March 2, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Klaus-Volker Schuett, Andreas Harzer, Georg Hejtmann, Ulrike Taeffner, Lars Epple, Petra Stedile
  • Patent number: 10872833
    Abstract: The invention relates to an electronic module (6), in particular a power module, having at least one electrical/electronic component (7) and having a housing (8), which at least partly extends around the component (7), wherein the housing (8) is made of cement composite (1), and wherein the cement composite (1) has at least one particulate filler (2). According to the invention, the particulate filler (2) has aluminum nitride particles (3), which each have a coating only of aluminum oxide (4).
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 22, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Rometsch, Georg Hejtmann, Martin Rittner, Stefan Kaessner
  • Patent number: 10717908
    Abstract: An abrasive particle includes at most three surfaces and at least one edge which has a corner at at least one end. The abrasive particle may contain a ceramic material, particularly polycrystalline ?-Al2O3. Abrasive particles as a whole, methods for producing abrasive particles, moulds, abrasive articles, methods for producing abrasive articles, and methods for abrading a surface are also disclosed.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: July 21, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
  • Publication number: 20200140338
    Abstract: A shaped ceramic abrasive particle based on alpha-Al2O3 contains a proportion of 5% to 30% by weight of ZrO2. The alpha-Al2O3 has a medium crystallite size of 0.5 ?m to 3 ?m and the ZrO2 has a medium crystallite size of 0.25 ?m to 8 ?m.
    Type: Application
    Filed: April 25, 2018
    Publication date: May 7, 2020
    Inventors: Moritz Oldenkotte, Andreas Harzer, Georg Hejtmann, Jiri Misak, Petra Stedile, Stefan Fuenfschilling
  • Patent number: 10557068
    Abstract: An abrasive grain includes a surface having at least a first face with a first outline, and at least one second face with a second outline. The first outline does not contain any vertices, but the second outline contains at least one vertex. The abrasive grain may include a ceramic material, especially polycrystalline ?-Al2O3.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 11, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
  • Publication number: 20190378786
    Abstract: The invention relates to a power module. The power module has at least one power semiconductor and at least one further electronic component. The power module has a housing which is formed by a shaped body and is formed by an encapsulation compound. According to the invention, the housing is formed in at least two levels. At least one power semiconductor component is arranged in a first level and the at least one further electronic component is arranged in the second level. At least one electrically conductive layer, which forms an electrically conductive connecting structure, is formed on a surface of an inner boundary of the power module which extends between the levels. The connecting structure is applied directly to the surface. The at least one further electronic component is electrically conductively connected, in particular soldered or sintered, to the wiring structure.
    Type: Application
    Filed: December 11, 2017
    Publication date: December 12, 2019
    Inventors: Georg Hejtmann, Martin Rittner, Nicolas Maier, Uwe Glanz
  • Publication number: 20190348338
    Abstract: The invention relates to an electronic module (6), in particular a power module, having at least one electrical/electronic component (7) and having a housing (8), which at least partly extends around the component (7), wherein the housing (8) is made of cement composite (1), and wherein the cement composite (1) has at least one particulate filler (2). According to the invention, the particulate filler (2) has aluminum nitride particles (3), which each have a coating only of aluminum oxide (4).
    Type: Application
    Filed: December 22, 2017
    Publication date: November 14, 2019
    Inventors: Bernd Rometsch, Georg Hejtmann, Martin Rittner, Stefan Kaessner
  • Publication number: 20180374775
    Abstract: An electrical device includes an electrical component that is at least partially covered by a covering material that includes a cement material. The covering material also includes particles having a first material and fibers having a second material. The first material and the second material each possess a higher coefficient of thermal conductivity than the cement of the cement material.
    Type: Application
    Filed: November 17, 2016
    Publication date: December 27, 2018
    Inventors: Klaus-Volker Schuett, Andreas Harzer, Georg Hejtmann, Ulrike Taeffner, Lars Epple, Petra Stedile
  • Publication number: 20180142132
    Abstract: An abrasive particle includes at most three surfaces and at least one edge which has a corner at at least one end. The abrasive particle may contain a ceramic material, particularly polycrystalline ?-Al2O3. Abrasive particles as a whole, methods for producing abrasive particles, moulds, abrasive articles, methods for producing abrasive articles, and methods for abrading a surface are also disclosed.
    Type: Application
    Filed: January 22, 2018
    Publication date: May 24, 2018
    Inventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
  • Patent number: 9969057
    Abstract: An abrasive member includes an abrasive member base and a plurality of abrasive particles applied to the abrasive member base. At least a large proportion of the abrasive particles form an abrasive edge unit with an abrasive edge inclined at an angle between 0° and 90° relative to a defined working direction.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: May 15, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Beat Eugster, Georg Hejtmann, Thomas Rohner, Roman Zaech, Thomas Kipfer, Ralf Materna, Adrian Schoch, Jiri Misak, Petra Stedile, Peter Eggenberger, Stefan Fuenfschilling
  • Patent number: 9914863
    Abstract: An abrasive particle includes at most three surfaces and at least one edge which has a corner at least one end. The abrasive particle may contain a ceramic material, particularly polycrystalline ?-Al2O3. Abrasive particles as a whole, methods for producing abrasive particles, moulds, abrasive articles, methods for producing abrasive articles, and methods for abrading a surface are also disclosed.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: March 13, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
  • Publication number: 20170335157
    Abstract: An abrasive grain includes a surface having at least a first face with a first outline, and at least one second face with a second outline. The first outline does not contain any vertices, but the second outline contains at least one vertex. The abrasive grain may include a ceramic material, especially polycrystalline ?-Al2O3.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Inventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
  • Patent number: 9771505
    Abstract: An abrasive grain includes a surface having at least a first face with a first outline, and at least one second face with a second outline. The first outline does not contain any vertices, but the second outline contains at least one vertex. The abrasive grain may include a ceramic material, especially polycrystalline ?-Al2O3.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: September 26, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
  • Publication number: 20160144480
    Abstract: An abrasive member includes an abrasive member base and a plurality of abrasive particles applied to the abrasive member base. At least a large proportion of the abrasive particles form an abrasive edge unit with an abrasive edge inclined at an angle between 0° and 90° relative to a defined working direction.
    Type: Application
    Filed: June 24, 2014
    Publication date: May 26, 2016
    Inventors: Beat Eugster, Georg Hejtmann, Thomas Rohner, Roman Zaech, Thomas Kipfer, Ralf Materna, Adrian Schoch, Jiri MIsak, Petra Stedile, Peter Eggenberger, Stefan Fuenfschilling
  • Patent number: 9327377
    Abstract: A machine tool, for example a hand-held belt grinder, is subjected to high frequencies outside a working plane between an abrasive belt and a workpiece. In particular, the machine tool is subject to high frequencies in a free-running region of the belt, of an excitation actuator, in particular by a piezo element.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: May 3, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Peter Keller-Sornig, Georg Hejtmann, Aldo Di Nicolantonio, Stefano Delfini, Ralf Materna, Adrian Schoch, Dieter Troendle
  • Publication number: 20150259587
    Abstract: An abrasive grain includes a surface having at least a first face with a first outline, and at least one second face with a second outline. The first outline does not contain any vertices, but the second outline contains at least one vertex. The abrasive grain may include a ceramic material, especially polycrystalline ?-Al2O3.
    Type: Application
    Filed: July 31, 2013
    Publication date: September 17, 2015
    Inventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
  • Publication number: 20150210910
    Abstract: An abrasive particle includes at most three surfaces and at least one edge which has a corner at at least one end. The abrasive particle may contain a ceramic material, particularly polycrystalline ?-Al2O3. Abrasive particles as a whole, methods for producing abrasive particles, moulds, abrasive articles, methods for producing abrasive articles, and methods for abrading a surface are also disclosed.
    Type: Application
    Filed: July 31, 2013
    Publication date: July 30, 2015
    Inventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
  • Publication number: 20130331011
    Abstract: A machine tool, for example a hand-held belt grinder, is subjected to high frequencies outside a working plane between an abrasive belt and a workpiece. In particular, the machine tool is subject to high frequencies in a free-running region of the belt, of an excitation actuator, in particular by a piezo element.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 12, 2013
    Applicant: Robert Bosch GmbH
    Inventors: Peter Keller-Sornig, Georg Hejtmann, Aldo Di Nicolantonio, Stefano Delfini, Ralf Materna, Adrian Schoch, Dieter Troendie
  • Publication number: 20030161993
    Abstract: A method of manufacturing multilayer actuators is described, in which films (1), known as green films, having regions applied thereon made of metal plating to implement electrodes, are processed into compressed multilayer composite elements before a sintering step. Film elements (4), whose area defines the cross-sectional area of a finished actuator, are individually separated from the green film (1) having metal plating and stacked into a film stack to prepare for the manufacture of a multilayer composite element. Furthermore, a device having separating means (31, 32, 33, 35) for performing the method is described, in which the separating means is designed for the purpose of individually separating film elements (4), whose area defines the cross-sectional area of a finished actuator, from the green film (1) and stacking the separated film elements (4) directly afterward.
    Type: Application
    Filed: March 19, 2003
    Publication date: August 28, 2003
    Inventors: Thomas Biesinger, Thomas Schulte, Marianne Hammer, Stefan Henneck, Warren Suter, Friederike Lindner, Georg Hejtmann