Patents by Inventor Frank Verbakel

Frank Verbakel 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: 9753157
    Abstract: The invention relates to a radiation detector (100?) and a method for detecting radiation, particularly for detecting X-rays (X) in a CT imaging apparatus (1000?). According to a preferred embodiment, the radiation detector (100?) comprises a conversion element (110) for converting incident radiation (X) into electrical signals which are read out and processed by a readout circuit (120). A heating device comprising the heat source (135?) of a Peltier element is provided with which the conversion element (110) can controllably be heated in order to reduce negative effects, e.g. of polarization, on image accuracy, wherein the heat sink (137?) of the Peltier element is oriented towards the readout circuit.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 5, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Roger Steadman Booker, Christoph Herrmann, Frank Verbakel
  • Patent number: 9753156
    Abstract: The invention relates to a detector (6) for detecting radiation, especially x-ray radiation used in a computed tomography system. The detector comprises a direct conversion material (9) for converting radiation into electrons and holes, which are used for generating an electrical detection signal. The direct conversion material is illuminated with illumination light being broadband visible and/or broadband infrared light for reducing, in particular, eliminating, a polarization of the direct conversion material, which may occur when being traversed by the radiation to be detected and which may reduce the detection performance. By reducing the polarization of the direct conversion material the detection performance can be improved.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: September 5, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Frank Verbakel, Klaus Juergen Engel, Antonius Johannes Maria Nellissen, Herfried Karl Wieczorek, Eric Cornelius Egbertus Van Grunsven, Ira Micah Blevis, Roger Steadman Booker
  • Publication number: 20170192110
    Abstract: The invention relates to a radiation detector (100?) and a method for detecting radiation, particularly for detecting X-rays (X) in a CT imaging apparatus (1000?). According to a preferred embodiment, the radiation detector (100?) comprises a conversion element (110) for converting incident radiation (X) into electrical signals which are read out and processed by a readout circuit (120). A heating device comprising the heat source (135?) of a Peltier element is provided with which the conversion element (110) can controllably be heated in order to reduce negative effects, e.g. of polarization, on image accuracy, wherein the heat sink (137?) of the Peltier element is oriented towards the readout circuit.
    Type: Application
    Filed: September 15, 2015
    Publication date: July 6, 2017
    Inventors: Roger STEADMAN BOOKER, Christoph HERRMANN, Frank VERBAKEL
  • Patent number: 9666758
    Abstract: Method for producing a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 30, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Kamal Asadi, Dagobert Michel De Leeuw, Johannes Franciscus Maria Cillessen, Wilhelmus Cornelis Keur, Frank Verbakel, Patrick John Baesjou, Cornelis Eustatius Timmering
  • Publication number: 20170045630
    Abstract: The invention relates to a radiation detector (100) and to a method for manufacturing such a detector. In a preferred embodiment, the radiation detector (100) comprises an array of photosensitive pillars (110) that are embedded in a conversion material (120). The photosensitive pillars may particularly be diodes connected at their ends to external circuits (130, 140). The conversion material (120) may particularly comprise a powder of scintillator particles (121) embedded in a matrix of binder.
    Type: Application
    Filed: April 13, 2015
    Publication date: February 16, 2017
    Inventors: Matthias SIMON, Frank VERBAKEL, Gereon VOGTMEIER, Naor WAINER
  • Publication number: 20160293799
    Abstract: The invention provides a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.
    Type: Application
    Filed: June 9, 2016
    Publication date: October 6, 2016
    Inventors: Kamal Asadi, Dagobert Michel De Leeuw, Johannes Franciscus Maria Cillessen, Wilhelmus Cornelis Keur, Frank Verbakel, Patrick John Baesjou, Cornelis Eustatius Timmering
  • Patent number: 9385264
    Abstract: The invention provides a light emitting semi conductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: July 5, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Kamal Asadi, Dagobert Michael De Leeuw, Johannes Franciscus Maria Cillessen, Wilhelmus Cornelis Keur, Frank Verbakel, Patrick John Baesjou, Cornelis Eustatius Timmering
  • Publication number: 20160084968
    Abstract: A system (100) includes a photon counting detector array (116) including a direct conversion material (118) and a plurality of detector pixels (120) affixed thereto, and a split signal corrector (126) that corrects the output of the plurality of detector pixels for split signals. A method includes receiving an output signal of each of a plurality of detector pixels affixed to a direction conversion material of photon counting detector array, and correcting the output of the plurality of detector pixels for split signals.
    Type: Application
    Filed: April 30, 2014
    Publication date: March 24, 2016
    Inventors: Ira Micah BLEVIS, Daniel RUBIN, Oren ZARCHIN, Frank VERBAKEL
  • Publication number: 20150362604
    Abstract: The invention relates to a detector (6) for detecting radiation, especially x-ray radiation used in a computed tomography system. The detector comprises a direct conversion material (9) for converting radiation into electrons and holes, which are used for generating an electrical detection signal. The direct conversion material is illuminated with illumination light being broadband visible and/or broadband infrared light for reducing, in particular, eliminating, a polarization of the direct conversion material, which may occur when being traversed by the radiation to be detected and which may reduce the detection performance. By reducing the polarization of the direct conversion material the detection performance can be improved.
    Type: Application
    Filed: February 28, 2014
    Publication date: December 17, 2015
    Inventors: Frank VERBAKEL, Klaus Juergen ENGEL, Antonius Johannes Maria NELLISSEN, Herfried Karl WIECZOREK, Eric Cornelis Egbertus VAN GRUNSVEN, Ira Micah BLEVIS, Roger STEADMAN BOOKER
  • Publication number: 20150340559
    Abstract: The invention provides a light emitting semi conductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.
    Type: Application
    Filed: June 28, 2013
    Publication date: November 26, 2015
    Inventors: KAMAL ASADI, DAGOBERT MICHAEL DE LEEUW, JOHANNES FRANCISCUS MARIA CILLESSEN, WILHELMUS CORNELIS KEUR, FRANK VERBAKEL, PATRICK JOHN BAESJOU, CORNELIS EUSTATIUS TIMMERING
  • Publication number: 20150301199
    Abstract: The present invention relates to a photon counting X-ray detector and detection method that effectively suppress polarization even under high flux conditions.
    Type: Application
    Filed: November 20, 2013
    Publication date: October 22, 2015
    Inventors: Antonius Johannes Maria NELLISSEN, Frank VERBAKEL, Johan Hendrik KLOOTWIJK, Herfried Karl WIECZOREK
  • Publication number: 20070246688
    Abstract: This invention relates to an improved process for the nano- or microstructuring of a substrate by applying a mesogen or a mesogenic mixture on top of the substrate. The improvement is that the mesogen or mesogenic mixture is contact printed unto the target substrate, said substrate having an alignment layer.
    Type: Application
    Filed: July 11, 2005
    Publication date: October 25, 2007
    Inventors: Carlos Sanchez, Cornelis Bastiaansen, Dirk Broer, Frank Verbakel