Patents by Inventor Ulrich Kern

Ulrich Kern 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: 10763339
    Abstract: A semiconductor device includes an n-doped monocrystalline semiconductor substrate having a substrate surface, an amorphous n-doped semiconductor surface layer at the substrate surface of the n-doped monocrystalline semiconductor substrate, and a Schottky-junction forming material in contact with the amorphous n-doped semiconductor surface layer. The Schottky-junction forming material forms at least one Schottky contact with the amorphous n-doped semiconductor surface layer.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: September 1, 2020
    Assignee: Infineon Technologies Austria AG
    Inventors: Jens Peter Konrath, Ronny Kern, Stefan Krivec, Ulrich Schmid, Laura Stoeber
  • Publication number: 20200139606
    Abstract: A device for producing a dyed plastic melt and an undyed plastic melt includes a multi-shaft screw extruder, a first metering installation, a second metering installation, and a control installation for selecting between a first operating mode for producing the dyed plastic melt and a second operating mode for producing the undyed plastic melt. The first metering installation serves for feeding an undyed plastic material through a first infeed opening into a housing of the multi-shaft screw extruder, and the second metering installation serves for feeding at least one dyeing agent through a second infeed opening into the housing. In order for the undyed plastic melt to be produced, the plastic material is fed exclusively via the first infeed opening such that residual dyeing agent which is still located in the second metering installation or in the region of the second infeed opening does not contaminate the undyed plastic melt.
    Type: Application
    Filed: July 27, 2017
    Publication date: May 7, 2020
    Inventors: Ulrich CONRAD, Norbert KERN, Markus SCHMUDDE, Bernhard STÖHRER, Heiko HORNBERGER
  • Patent number: 10599350
    Abstract: A method is suggested for updating a memory comprising a first memory area and a second memory area, the method comprising the steps: (a) using a first image of data that is stored in the first memory area while writing a second image of data to the second memory area; (b) switching to using the second image of data that is stored in the second memory area; (c) writing an inverse image of the second image to the first memory area; and (d) using the first memory area and the second memory area as a differential memory. Also, a corresponding device is provided.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: March 24, 2020
    Assignee: Infineon Technologies AG
    Inventors: Thomas Kern, Ulrich Backhausen
  • Patent number: 10431698
    Abstract: According to an embodiment of a semiconductor device, the semiconductor device includes a contact layer in contact with SiC material. The contact layer includes a metal nitride having a nitrogen content in a range of 10 to 50 atomic %. The semiconductor device further includes a non-ohmic contact formed between the SiC material and the contact layer.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: October 1, 2019
    Assignee: Infineon Technologies Austria AG
    Inventors: Jens Peter Konrath, Ronny Kern, Stefan Krivec, Ulrich Schmid, Laura Stoeber
  • Publication number: 20190202088
    Abstract: A device for producing dyed plastic granulate and undyed plastic granulate includes a multi-shaft screw extruder and an underwater pelletizing installation. A granulate changeover unit which separates the dyed plastic granulate from the undyed plastic granulate is disposed in a conveying direction downstream of the underwater pelletizing installation. The dyed plastic granulate is separated from the pelletizing water via a first separator installation, and the undyed plastic granulate is separated from the pelletizing water via a second separator installation. The separator installations are disposed so as to be mutually parallel. The device enables a simple, flexible and economical selective production of the dyed plastic granulate and the undyed plastic granulate.
    Type: Application
    Filed: July 27, 2017
    Publication date: July 4, 2019
    Inventors: Ulrich CONRAD, Norbert KERN, Markus SCHMUDDE, Bernhard STÖHRER, Heiko HORNBERGER
  • Patent number: 10319460
    Abstract: A memory system having a flexible read reference is disclosed. The system includes a memory partition, a failcount component, and a controller. The memory partition includes a plurality of memory cells. The failcount component is configured to generate failcounts in response to read operations of the memory partition. The controller is configured to calibrate a reference value for the memory partition by utilizing the failcounts.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: June 11, 2019
    Assignee: Infineon Technologies AG
    Inventors: Thomas Kern, Jens Rosenbusch, Ulrich Backhausen, Thomas Nirschl
  • Publication number: 20190168418
    Abstract: A device for producing a dyed plastic melt and an undyed plastic melt includes a multi-shaft screw extruder, a first metering installation, a second metering installation, and a control installation for selecting between a first operating mode for producing the dyed plastic melt and a second operating mode for producing the undyed plastic melt. The first metering installation serves for feeding an undyed plastic material through a first infeed opening into a housing of the multi-shaft screw extruder, and the second metering installation serves for feeding at least one color granulate through a second infeed opening into the housing. The plastic material is fed exclusively by way of the first infeed opening such that residual color granulate or dyeing agent contained therein, respectively, which is still located in the second metering installation or in the region of the second infeed opening does not contaminate the undyed plastic melt.
    Type: Application
    Filed: July 27, 2017
    Publication date: June 6, 2019
    Inventors: Ulrich CONRAD, Norbert KERN, Markus SCHMUDDE, Bernhard STÖHRER, Heiko HORNBERGER
  • Patent number: 10293383
    Abstract: A mobile high-pressure cleaning apparatus is provided with a vehicle trailer, on the chassis of which at least two running wheels are held so as to be rotatable, and with a high-pressure cleaning appliance having a motor and a pump, and also with at least one water storage tank for storing water for the high-pressure cleaning appliance. So that water can be provided to the apparatus from the at least one water storage tank or from a water supply mains, without risk of water from the water supply mains being returned thereto, the high-pressure cleaning apparatus has a decoupling tank with at least one inlet which can be connected to the water supply mains, and at least one outlet which is connected to the high-pressure cleaning appliance and to at least one water supply tank via a shut-off member which can be actuated by the user.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 21, 2019
    Assignee: Alfred Kärcher SE Co. KG
    Inventors: Ronald Krauter, Andreas Pfizenmaier, Stefan Ehrhardt, Torsten Kern, Ulrich Bauer
  • Publication number: 20190140111
    Abstract: According to an embodiment of a semiconductor device, the semiconductor device includes a contact layer in contact with SiC material. The contact layer includes a metal nitride having a nitrogen content in a range of 10 to 50 atomic %. The semiconductor device further includes a non-ohmic contact formed between the SiC material and the contact layer.
    Type: Application
    Filed: January 2, 2019
    Publication date: May 9, 2019
    Inventors: Jens Peter Konrath, Ronny Kern, Stefan Krivec, Ulrich Schmid, Laura Stoeber
  • Publication number: 20110171424
    Abstract: A polyester film with a high transparency, such as a transparency of from 70 to 99.5%, is provided that includes barium sulfate particles whose median particle size is from 0.7 to 7 ?m. The barium sulfate particles have an inorganic coating formed from oxides, mixed oxides, or a mixture of oxides of Si, Al, Sn, Fe, In, and/or Sb. The coating makes the barium sulfate particles more compatible with the polyester matrix, thereby minimizing the haze of the film. Preference is given to mixed oxides of SiO2 and Al2O3, and PET is the preferred polyester.
    Type: Application
    Filed: June 11, 2008
    Publication date: July 14, 2011
    Inventors: Holger Kliesch, Martin Jesberger, Bodo Kuhmann, Ulrich Kern
  • Patent number: 7868580
    Abstract: A method for turning a three-phase alternating current motor on again, after it has been separated from a supply voltage, if a residual field voltage induced by a rotor residual field is present, and to an electrical circuit for implementing the method. The time progressions of the residual field voltage and the supply voltage are recorded, and the phase difference between the voltages is calculated in advance from the time progressions. A time point ts is determined, at which the phase difference goes below a predetermined maximum value ??max. A switching command for applying voltage is triggered at a time interval that corresponds to a predetermined switching time delay ?s, before the time point ts is reached, so that the motor is connected to the supply voltage approximately at the time point ts. The electrical circuit has a measurement value detection device, a microcontroller and a direct current setting device.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: January 11, 2011
    Assignee: Atlas Copco Energas GmbH
    Inventors: Ulrich Kern, Stefan Pöhler, Hans Otto Seinsch
  • Patent number: 7700015
    Abstract: A process is described for production of a biaxially oriented film which comprises at one crystallizable thermoplastic as main constituent and comprises at least 500 ppm, based on the weight of thermoplastic, of a pigment. The production process uses at least 20% by weight, based on the weight of the film, of recycled material of the same type whose molecular weight has been increased by condensation processes.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 20, 2010
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ulrich Kern, Ursula Murschall, Bodo Kuhmann, Guenther Crass
  • Publication number: 20080218117
    Abstract: A method for turning a three-phase alternating current motor on again, after it has been separated from a supply voltage, if a residual field voltage induced by a rotor residual field is present, and to an electrical circuit for implementing the method. The time progressions of the residual field voltage and the supply voltage are recorded, and the phase difference between the voltages is calculated in advance from the time progressions. A time point ts is determined, at which the phase difference goes below a predetermined maximum value ??max. A switching command for applying voltage is triggered at a time interval that corresponds to a predetermined switching time delay ?s, before the time point ts is reached, so that the motor is connected to the supply voltage approximately at the time point ts. The electrical circuit has a measurement value detection device, a microcontroller and a direct current setting device.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 11, 2008
    Inventors: Ulrich Kern, Stefan Pohler, Hans Otto Seinsch
  • Patent number: 7238419
    Abstract: The invention relates to a white opaque film formed from a crystallizable thermoplastic, preferably thermo-plastic polyester in the form of polyethylene terephthalate, barium sulfate and titanium dioxide as pigments, at least one optical brightener, and optionally at least one dye soluble in the thermoplastic. The film optionally includes, an additional functionality, e.g. in the form of an adhesive coating, of a coating with aminosilane or silicone, of UV resistance, of hydrolysis resistance, of flame retardancy, or of a sealable outer layer.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: July 3, 2007
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ulrich Kern, Ursula Murschall, Bodo Kuhmann, Martin Jesberger
  • Patent number: 7229581
    Abstract: Invention relates to a process for producing a single-layer or multilayer film by extrusion or coextrusion, biaxial orientation, and heat setting based on crystallizable thermoplastics whose principal constituent is a crystallizable thermoplastic having a standard viscosity SV (DCA) of from 600 to 1000. The thermoplastic is mixed prior to extrusion or coextrusion with 50% by weight (based on the total weight of all thermoplastics) of a secondary thermoplastic having a standard viscosity SV (DCA) of more than 900 to 1500, the standard viscosity SV (DCA) of the two thermoplastics differing by at least 100 units. The secondary thermoplastic is a byproduct or waste product from the production of PET plastic bottles or originates from recycled PET bottles.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: June 12, 2007
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ulrich Kern, Ursula Murschall, Holger Kliesch
  • Patent number: 7186455
    Abstract: The invention relates to a white, biaxially oriented film which comprises a crystallizable thermoplastic as main componet and is characterized by further comprising at least one UV-stabilizer, at least one white pigment and at least one flame-proofing agent, which is soluble in the thermoplastic and introduced directly, during the film production, by masterbatch technology, whereby the masterbatch is pre-conditioned by gradual heating under reduced pressure and with stirring.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: March 6, 2007
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ursula Murschall, Andreas Stopp, Guenther Crass, Ulrich Kern
  • Patent number: 7182997
    Abstract: The invention relates to an opaque, white film with a thickness of from 10 to 500 ?m whose principal constituent is a crystallizable thermoplastic. The film comprises at least barium sulfate and at least one optical brightener. The barium sulfate and/or the optical brightener are incorporated directly into the crystallizable thermoplastic or are fed as a masterbatch during film production. At least one surface of the film bears a functional coating with a thickness of from 5 to 100 nm, in order to confer on the film surface an additional function such as sealability, printability, metallizability, sterilizability, antistatic properties, aroma barrier properties or improved adhesion to materials which would not adhere to the film surface without the coating, for example photographic emulsions.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: February 27, 2007
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ursula Murschall, Ulrich Kern, Klaus Oberlaender
  • Patent number: 7157132
    Abstract: Biaxially oriented, co-extruded polyester films comprising a base layer consisting of at least 90 wt. % thermoplastic polyester, preferably polyethylene terephthalate (PET), at least one sealable outer layer and a second non-sealable outer layer and, optionally, other intermediate layers, in addition to at least one flame-retardant agent, preferably organic phosphorous compounds. The inventive films are characterized by low inflammability, high UV stability, no embrittlement when subjected to thermal stress and a surface which is devoid of troublesome opacity. They are suitable for a multiplicity of uses both indoors and outside. The outer layers contain anti-blocking agents such as silicic acid having an average particle diameter of preferably less than 50 nm and/or 2 ?m. Preferably, the sealable outer layer consists of a copolyester which is made of ethylene terephthalate and ethylene isophthalate units.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: January 2, 2007
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ursula Murschall, Ulrich Kern, Andreas Stopp, Guenther Crass, Herbert Peiffer
  • Publication number: 20060275593
    Abstract: The invention relates to a white opaque film formed from a crystallizable thermoplastic, preferably thermo-plastic polyester in the form of polyethylene terephthalate, barium sulfate and titanium dioxide as pigments, at least one optical brightener, and optionally at least one dye soluble in the thermoplastic. The film optionally includes, an additional functionality, e.g. in the form of an adhesive coating, of a coating with aminosilane or silicone, of UV resistance, of hydrolysis resistance, of flame retardancy, or of a sealable outer layer.
    Type: Application
    Filed: May 31, 2006
    Publication date: December 7, 2006
    Inventors: Ulrich Kern, Ursula Murschall, Bodo Kuhmann, Martin Jesberger
  • Patent number: 7138176
    Abstract: The present invention relates to a transparent, low-flammability, UV-resistant, oriented film made from a crystallizable thermoplastic and having a thickness of from 5 to 300 ?m. The film comprises at least one UV stabilizer and at least one flame retardant, and at least the flame retardant, and preferably also the UV stabilizer, is fed directly as a masterbatch to the crystallizable thermoplastic during production of the film. The film may have one or more layers, and the UV stabilizer may have been selected from the group consisting of the 2-hydroxybenzophenones, the 2-hydroxybenzotriazoles, the organonickel compounds, the salicylic esters, the cinnamic ester derivatives, the resorcinol monobenzoates, the oxanilides, the hydroxybenzoic esters, the sterically hindered amines and triazines, and the flame retardant may be an organic phosphorus compound, in particular an organic phosphorus compound soluble in polyethylene terephthalate.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: November 21, 2006
    Assignee: Mitsubishi Polyester Film GmbH
    Inventors: Ursula Murschall, Ulrich Kern, Guenther Crass, Andreas Stopp