Patents by Inventor Jan Ruff

Jan Ruff 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).

  • Publication number: 20240150232
    Abstract: A vehicle window, includes at least one transparent glass pane and an IR-reflective coating on a surface of the glass pane, wherein the IR-reflective coating includes n metallic layers and (n+1) dielectric layer modules, wherein the layer modules are implemented as dielectric layers or layer sequences and wherein the layer modules and the metallic layers are arranged alternatingly such that each metallic layer is arranged between two layer modules, where n is a natural number greater than or equal to 1, wherein each metallic layer is implemented as a discontinuous layer of metal nanocrystals, which has regions that are occupied by metal nanocrystals and regions that are not occupied by nanocrystals. The uppermost layer module has a dielectric anti-reflection layer with a refractive index of at most 1.7.
    Type: Application
    Filed: February 23, 2022
    Publication date: May 9, 2024
    Inventors: Julie RUFF, Sebastian JANZYK, Jan HAGEN
  • Patent number: 9588197
    Abstract: A method and a magnetic resonance tomography (MRT) system are provided. The MRT system includes at least one cable. The MRT system is configured to transmit high frequency (HF) signals for at least one HF transmitting coil, and shim signals for at least one shim coil and/or gradient signals for at least one gradient coil in the at least one cable.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: March 7, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stephan Biber, Wolfgang Renz, Jan Ruff
  • Publication number: 20150355302
    Abstract: A simultaneous MR imaging method is described in which different types of atom are simultaneously excited and read out. First a multi-resonant RF excitation pulse is transmitted including a plurality of sub-signals assigned to different types of atom and having different frequency ranges. Simultaneously or in a synchronized manner, a gradient scheme common to the different types of atom is transmitted with which an unambiguous spatial assignment of received signals can be performed. In the subsequent readout process, an echo signal is received including different individual echoes of different types of atom. The received echo signal is separated into individual signals. Finally, image data is reconstructed from raw data obtained from the separated individual signals. Also described is an apparatus with which the above described method can be carried out.
    Type: Application
    Filed: May 26, 2015
    Publication date: December 10, 2015
    Inventors: HUBERTUS FISCHER, ROBERT KRIEG, JAN RUFF
  • Patent number: 8854040
    Abstract: In a method and system for magnetic resonance imaging of an examination subject on the basis of partially parallel acquisition (PPA) with multiple component coils, a calibration measurement is implemented in a first time period and an actual measurement for the imaging is implemented in a subsequent second time period. In the calibration measurement, calibration data for predetermined calibration points in spatial frequency space are acquired with the multiple component coils. In the actual measurement, incomplete data sets are respectively acquired in spatial frequency space with each of the multiple component coils. Complete data sets are reconstructed from the incomplete data sets and the calibration data. The first time period and the second time period are different, and the measurements are implemented when triggered in the two time periods. An essentially identical state of the examination subject or of the measurement system is used as a trigger.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: October 7, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stephan Kannengiesser, Jan Ruff
  • Publication number: 20140077803
    Abstract: A method and a magnetic resonance tomography (MRT) system are provided. The MRT system includes at least one cable. The MRT system is configured to transmit high frequency (HF) signals for at least one HF transmitting coil, and shim signals for at least one shim coil and/or gradient signals for at least one gradient coil in the at least one cable.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 20, 2014
    Inventors: Stephan Biber, Wolfgang Renz, Jan Ruff
  • Publication number: 20130096415
    Abstract: In a method to determine at least one sodium value describing the 23Na+ content in at least one region of interest in a target region in the body of a patient, at least one sodium image data set of the target region is acquired with a magnetic resonance imaging device using sodium-23 imaging, the sodium image data set including image data dependent on the occurrence of sodium. The at least one region of interest is defined for which the sodium value is to be determined in the sodium image data set. The sodium value is determined by comparison of the image data in the region of interest with reference image data of at least one subject with a defined 23Na+ content, the reference image data having been acquired with the same sequence. A local coil can be used to implement the method that has a phantom integrated therein that allows the sodium image data set and the reference image data to be acquired together.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 18, 2013
    Inventors: Jan Ruff, Jens Titze, Peter Linz, Thoralf Niendorf, Davide Santoro, Wolfgang Renz, Alexander Cavallaro, Michael Uder
  • Patent number: 8260397
    Abstract: In a method to determine a kidney function parameter of kidneys of an examination person with the aid of magnetic resonance tomography, at least one magnetic resonance measurement is implemented for an examination region of the examination person that comprises a urinary bladder of the examination person, to acquire magnetic resonance data from the examination region that include at least image data. The concentration of a urophanic substance in the urinary bladder of the examination person is automatically determined based on the acquired magnetic resonance data. A volume of the urinary bladder is automatically determined based on the acquired image data. A kidney function parameter of the kidneys of the examination person is automatically determined on the basis of the determined concentration of the urophanic substance in the urinary bladder and of the specific volume of the urinary bladder.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: September 4, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jan Ruff, Stefan Roell, Sebastian Schmidt
  • Publication number: 20120019246
    Abstract: In a method and system for magnetic resonance imaging of an examination subject on the basis of partially parallel acquisition (PPA) with multiple component coils, a calibration measurement is implemented in a first time period and an actual measurement for the imaging is implemented in a subsequent second time period. In the calibration measurement, calibration data for predetermined calibration points in spatial frequency space are acquired with the multiple component coils. In the actual measurement, incomplete data sets are respectively acquired in spatial frequency space with each of the multiple component coils. Complete data sets are reconstructed from the incomplete data sets and the calibration data. The first time period and the second time period are different, and the measurements are implemented when triggered in the two time periods. An essentially identical state of the examination subject or of the measurement system is used as a trigger.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: Stephan Kannengiesser, Jan Ruff
  • Publication number: 20100158338
    Abstract: In a method for image data acquisition with a magnetic resonance device that has a movable patient table, a localizer of the anatomy of a patient is acquired, suitable slice geometry information is automatically determined from the localizer for the diagnostic question, a patient table position is automatically determined under consideration of the slice geometry information, that causes a slice or slice group determined from the slice geometry information to be in or optimally close to the isocenter of the magnetic resonance device, the patient table is automatically driven into the patient table position, and the diagnostic image data are acquired.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 24, 2010
    Inventors: Martin Harder, Jan Ruff
  • Publication number: 20100087726
    Abstract: In a method to determine a kidney function parameter of kidneys of an examination person with the aid of magnetic resonance tomography, at least one magnetic resonance measurement is implemented for an examination region of the examination person that comprises a urinary bladder of the examination person, to acquire magnetic resonance data from the examination region that include at least image data. The concentration of a urophanic substance in the urinary bladder of the examination person is automatically determined based on the acquired magnetic resonance data. A volume of the urinary bladder is automatically determined based on the acquired image data. A kidney function parameter of the kidneys of the examination person is automatically determined on the basis of the determined concentration of the urophanic substance in the urinary bladder and of the specific volume of the urinary bladder.
    Type: Application
    Filed: October 2, 2009
    Publication date: April 8, 2010
    Inventors: Jan Ruff, Stefan Roell, Sebastian Schmidt
  • Patent number: 6919721
    Abstract: In a hybrid CSI procedure for a magnetic resonance device, for a predeterminable volume of interest of the hybrid CSI procedure, the magnetic resonance device automatically defines an increased volume that exceeds the volume of interest such that all magnetic resonance signal-emitting substances of interest contained in the volume of interest are excited in order to create the magnetic resonance signals to be evaluated spectroscopically, and a saturation volume directly adjoining the volume of interest is automatically defined and saturated before the excitation by the magnetic resonance device such that no unwanted magnetic resonance signals are created from outside the volume of interest.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: July 19, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Uwe Böttcher, Jan Ruff, Stefan Röll
  • Publication number: 20040257077
    Abstract: In a hybrid CSI procedure for a magnetic resonance device, for a predeterminable volume of interest of the hybrid CSI procedure, the magnetic resonance device automatically defines an increased volume that exceeds the volume of interest such that all magnetic resonance signal-emitting substances of interest contained in the volume of interest are excited in order to create the magnetic resonance signals to be evaluated spectroscopically, and a saturation volume directly adjoining the volume of interest is automatically defined and saturated before the excitation by the magnetic resonance device such that no unwanted magnetic resonance signals are created from outside the volume of interest.
    Type: Application
    Filed: March 26, 2004
    Publication date: December 23, 2004
    Inventors: Uwe Bottcher, Jan Ruff, Stefan Roll