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: 10991643Abstract: 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: GrantFiled: December 11, 2017Date of Patent: April 27, 2021Assignee: Robert Bosch GmbHInventors: Georg Hejtmann, Martin Rittner, Nicolas Maier, Uwe Glanz
-
Patent number: 10937714Abstract: 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: GrantFiled: November 17, 2016Date of Patent: March 2, 2021Assignee: Robert Bosch GmbHInventors: Klaus-Volker Schuett, Andreas Harzer, Georg Hejtmann, Ulrike Taeffner, Lars Epple, Petra Stedile
-
Patent number: 10872833Abstract: 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: GrantFiled: December 22, 2017Date of Patent: December 22, 2020Assignee: Robert Bosch GmbHInventors: Bernd Rometsch, Georg Hejtmann, Martin Rittner, Stefan Kaessner
-
Patent number: 10717908Abstract: 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: GrantFiled: January 22, 2018Date of Patent: July 21, 2020Assignee: Robert Bosch GmbHInventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
-
Publication number: 20200140338Abstract: 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: ApplicationFiled: April 25, 2018Publication date: May 7, 2020Inventors: Moritz Oldenkotte, Andreas Harzer, Georg Hejtmann, Jiri Misak, Petra Stedile, Stefan Fuenfschilling
-
Patent number: 10557068Abstract: 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: GrantFiled: August 9, 2017Date of Patent: February 11, 2020Assignee: Robert Bosch GmbHInventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
-
Publication number: 20190378786Abstract: 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: ApplicationFiled: December 11, 2017Publication date: December 12, 2019Inventors: Georg Hejtmann, Martin Rittner, Nicolas Maier, Uwe Glanz
-
Publication number: 20190348338Abstract: 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: ApplicationFiled: December 22, 2017Publication date: November 14, 2019Inventors: Bernd Rometsch, Georg Hejtmann, Martin Rittner, Stefan Kaessner
-
Publication number: 20180374775Abstract: 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: ApplicationFiled: November 17, 2016Publication date: December 27, 2018Inventors: Klaus-Volker Schuett, Andreas Harzer, Georg Hejtmann, Ulrike Taeffner, Lars Epple, Petra Stedile
-
Publication number: 20180142132Abstract: 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: ApplicationFiled: January 22, 2018Publication date: May 24, 2018Inventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
-
Patent number: 9969057Abstract: 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: GrantFiled: June 24, 2014Date of Patent: May 15, 2018Assignee: Robert Bosch GmbHInventors: Beat Eugster, Georg Hejtmann, Thomas Rohner, Roman Zaech, Thomas Kipfer, Ralf Materna, Adrian Schoch, Jiri Misak, Petra Stedile, Peter Eggenberger, Stefan Fuenfschilling
-
Patent number: 9914863Abstract: 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: GrantFiled: July 31, 2013Date of Patent: March 13, 2018Assignee: Robert Bosch GmbHInventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
-
Publication number: 20170335157Abstract: 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: ApplicationFiled: August 9, 2017Publication date: November 23, 2017Inventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
-
Patent number: 9771505Abstract: 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: GrantFiled: July 31, 2013Date of Patent: September 26, 2017Assignee: Robert Bosch GmbHInventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
-
Publication number: 20160144480Abstract: 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: ApplicationFiled: June 24, 2014Publication date: May 26, 2016Inventors: Beat Eugster, Georg Hejtmann, Thomas Rohner, Roman Zaech, Thomas Kipfer, Ralf Materna, Adrian Schoch, Jiri MIsak, Petra Stedile, Peter Eggenberger, Stefan Fuenfschilling
-
Patent number: 9327377Abstract: 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: GrantFiled: August 29, 2011Date of Patent: May 3, 2016Assignee: Robert Bosch GmbHInventors: Peter Keller-Sornig, Georg Hejtmann, Aldo Di Nicolantonio, Stefano Delfini, Ralf Materna, Adrian Schoch, Dieter Troendle
-
Publication number: 20150259587Abstract: 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: ApplicationFiled: July 31, 2013Publication date: September 17, 2015Inventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
-
Publication number: 20150210910Abstract: 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: ApplicationFiled: July 31, 2013Publication date: July 30, 2015Inventors: Georg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
-
Publication number: 20130331011Abstract: 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: ApplicationFiled: August 29, 2011Publication date: December 12, 2013Applicant: Robert Bosch GmbHInventors: Peter Keller-Sornig, Georg Hejtmann, Aldo Di Nicolantonio, Stefano Delfini, Ralf Materna, Adrian Schoch, Dieter Troendie
-
Publication number: 20030161993Abstract: 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: ApplicationFiled: March 19, 2003Publication date: August 28, 2003Inventors: Thomas Biesinger, Thomas Schulte, Marianne Hammer, Stefan Henneck, Warren Suter, Friederike Lindner, Georg Hejtmann