Patents by Inventor Jurgen Leppert

Jurgen Leppert 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: 8350224
    Abstract: A scintillator arrangement for detecting X-ray radiation includes a plurality of pixels separated from one another by reflectors and made of a scintillator ceramic, doped in particular by cerium, for converting the X-ray radiation into visible light. In at least one embodiment, the reflectors are designed for absorbing light with a wavelength range which corresponds to a selected emission band of the scintillator ceramic. Thus, the concentration of cerium in the scintillator ceramic can be reduced and this leads to an increased light yield.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: January 8, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jürgen Leppert
  • Publication number: 20100232568
    Abstract: An X-ray or gamma ray detector array is disclosed, with at least one row of detector elements including at least one layer made of an X-ray or gamma radiation absorbing conversion material. In at least one embodiment, the conversion material is at least in part composed of a chemical element with an atomic number ?72, preferably >82. Such an X-ray or gamma ray detector array allows an increased spatial and spectral resolution and better dose usage.
    Type: Application
    Filed: March 12, 2010
    Publication date: September 16, 2010
    Inventors: Björn HEISMANN, Jürgen LEPPERT
  • Publication number: 20100207031
    Abstract: A scintillator arrangement for detecting X-ray radiation includes a plurality of pixels separated from one another by reflectors and made of a scintillator ceramic, doped in particular by cerium, for converting the X-ray radiation into visible light. In at least one embodiment, the reflectors are designed for absorbing light with a wavelength range which corresponds to a selected emission band of the scintillator ceramic. Thus, the concentration of cerium in the scintillator ceramic can be reduced and this leads to an increased light yield.
    Type: Application
    Filed: February 16, 2010
    Publication date: August 19, 2010
    Inventor: Jürgen Leppert
  • Patent number: 7415098
    Abstract: A collimator is disclosed for stray radiation, in particular for medical X-ray devices. In addition, a method is disclosed for producing the collimator. The collimator includes numerous absorption elements for X-ray radiation which are separated from one another by a filler and support material and are aligned approximately in parallel or oriented towards a common focus. In the collimator, the absorption elements are statistically distributed. A collimator of this type is extremely cost-effective to produce.
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: August 19, 2008
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jürgen Leppert
  • Publication number: 20070181252
    Abstract: Use of a hotmelt adhesive is disclosed for fixing at least one micro device on a carrier. A pasty fixation compound is further disclosed for micro devices including a powdered hotmelt adhesive, an anti-flow additive and a solvent for the anti-flow additive. Furthermore, a method is disclosed for fixing at least one micro device on a carrier, a hotmelt adhesive being applied to a carrier, the micro device being positioned at a predetermined distance from the carrier and fixed by the hotmelt adhesive until a solid adhesive bond has been produced between the at least one micro device and the carrier by cooling the hotmelt adhesive, the gap produced being filled by an epoxy resin and the two devices being adhesively bonded securely by curing of the epoxy resin. Furthermore, a detector is disclosed for detecting ionizing radiation which has a multiplicity of detector elements disposed in a two-dimensional arrangement.
    Type: Application
    Filed: January 12, 2007
    Publication date: August 9, 2007
    Inventors: Stefan Bohm, Ludwig Danzer, Gregor Hemken, Jurgen Leppert, Elisabeth Stammen, Jan Wrege
  • Publication number: 20070147587
    Abstract: A collimator is disclosed for stray radiation, in particular for medical X-ray devices. In addition, a method is disclosed for producing the collimator. The collimator includes numerous absorption elements for X-ray radiation which are separated from one another by a filler and support material and are aligned approximately in parallel or oriented towards a common focus. In the collimator, the absorption elements are statistically distributed. A collimator of this type is extremely cost-effective to produce.
    Type: Application
    Filed: November 11, 2004
    Publication date: June 28, 2007
    Inventor: Jürgen Leppert
  • Patent number: 6894282
    Abstract: A radiation detector has a photodiode arrangement, a number of scintillators, and a reflector part having a number of compartments corresponding to the number of scintillators, which receive the scintillators in such a way that the scintillators are surrounded by walls of the compartments with the exception of their side respectively facing the photodiode arrangement.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: May 17, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Andreas Freund, Jürgen Leppert
  • Publication number: 20030150994
    Abstract: The invention relates to a radiation detector, having a photodiode arrangement, a number of scintillators (4), and a reflector part (5) having a number of compartments (12) corresponding to the number of scintillators (4), which receive the scintillators (4) in such a way that the scintillators (4) are surrounded by walls (9, 10, 11) of the compartments (12) with the exception of their side respectively facing the photodiode arrangement.
    Type: Application
    Filed: September 30, 2002
    Publication date: August 14, 2003
    Inventors: Andreas Freund, Jurgen Leppert