Patents by Inventor Mark S. Purdum

Mark S. Purdum 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: 10120083
    Abstract: A storage phosphor panel can include an extruded inorganic storage phosphor layer including a thermoplastic polyolefin and an inorganic storage phosphor material, where the extruded inorganic storage phosphor panel has a DQE comparable to that of a traditional extruded inorganic solvent coated inorganic storage phosphor screen. Also disclosed is an inorganic storage phosphor detection system including an extruded inorganic storage phosphor panel that can include an extruded inorganic storage phosphor layer including a thermoplastic olefin and an inorganic storage phosphor material; and photodetector(s) coupled to the extruded inorganic storage phosphor panel to detect photons generated from the extruded inorganic storage phosphor panel.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: November 6, 2018
    Assignee: Carestream Dental Technology Topco Limited
    Inventors: Seshadri Jagannathan, Chang-Ying Joseph Yang, Kevin L. Bishop, Mark S. Purdum
  • Publication number: 20140291528
    Abstract: A storage phosphor panel can include an extruded inorganic storage phosphor layer including a thermoplastic polyolefin and an inorganic storage phosphor material, where the extruded inorganic storage phosphor panel has a DQE comparable to that of a traditional extruded inorganic solvent coated inorganic storage phosphor screen. Also disclosed is an inorganic storage phosphor detection system including an extruded inorganic storage phosphor panel that can include an extruded inorganic storage phosphor layer including a thermoplastic olefin and an inorganic storage phosphor material; and photodetector(s) coupled to the extruded inorganic storage phosphor panel to detect photons generated from the extruded inorganic storage phosphor panel.
    Type: Application
    Filed: May 29, 2014
    Publication date: October 2, 2014
    Inventors: Seshadri Jagannathan, Chang-Ying Joseph Yang, Kevin L. Bishop, Mark S. Purdum
  • Patent number: 8766196
    Abstract: A transparent scintillator panel including an extruded scintillation layer comprising a thermoplastic polyolefin and a scintillator material, wherein the transparent scintillator panel has an intrinsic MTF at least 5% greater than the iH50 of a solvent-coated DRZ+ screen. Also disclosed is a scintillation detection system including a transparent scintillator panel comprising an extruded scintillation layer comprising a thermoplastic olefin and a scintillator material; and at least one photodetector coupled to the transparent scintillator panel, wherein at least one photodetector is configured to detect photons generated from the transparent scintillator panel. Further disclosed is a method of making a transparent scintillator panel including providing thermoplastic particles comprising at least one thermoplastic polyolefin and a scintillator material; and melt extruding the thermoplastic particles to form an extruded scintillation layer.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: July 1, 2014
    Assignee: Carestream Health, Inc.
    Inventors: Seshadri Jagannathan, Chang-Ying Joseph Yang, Kevin L. Bishop, Mark S. Purdum
  • Publication number: 20130001423
    Abstract: A transparent scintillator panel including an extruded scintillation layer comprising a thermoplastic polyolefin and a scintillator material, wherein the transparent scintillator panel has an intrinsic MTF at least 5% greater than the iH50 of a solvent-coated DRZ+ screen. Also disclosed is a scintillation detection system including a transparent scintillator panel comprising an extruded scintillation layer comprising a thermoplastic olefin and a scintillator material; and at least one photodetector coupled to the transparent scintillator panel, wherein at least one photodetector is configured to detect photons generated from the transparent scintillator panel. Further disclosed is a method of making a transparent scintillator panel including providing thermoplastic particles comprising at least one thermoplastic polyolefin and a scintillator material; and melt extruding the thermoplastic particles to form an extruded scintillation layer.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Inventors: Seshadri Jagannathan, Chang-Ying Joseph Yang, Kevin L. Bishop, Mark S. Purdum
  • Patent number: 7965813
    Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: June 21, 2011
    Assignee: Carestream Health, Inc.
    Inventors: Zhimin Huo, Chang-Ying J. Yang, Mark S. Purdum
  • Patent number: 7746976
    Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium. An attenuation filter separate from the target/filter combination may be provided between the source and the body extremity, between the body extremity and the detector, or both.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: June 29, 2010
    Assignee: Carestream Health, Inc.
    Inventors: Zhimin Huo, Chang-Ying J. Yang, Mark S. Purdum
  • Publication number: 20100142675
    Abstract: A method and system for determining the bone mineral density of a body extremity. An image of a body extremity is acquired using a mammography x-ray system whereby a bone mineral density can be performed on the image. The system for determining the bone mineral density of a body extremity includes: a support for supporting the body extremity; a detector for capturing an image of the body extremity; and an x-ray source adapted to project an x-ray beam through the body extremity toward the detector, the x-ray source having a voltage of no more than about 45 kVp and having a target/filter combination of rhodium/rhodium, molybdenum/molybdenum, molybdenum/rhodium, or tungsten/rhodium.
    Type: Application
    Filed: January 29, 2010
    Publication date: June 10, 2010
    Inventors: Zhimin Huo, Chang-Ying J. Yang, Mark S. Purdum