Patents by Inventor Denny Lap Yen Lee
Denny Lap Yen Lee 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).
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Patent number: 10926111Abstract: Provided is a real-time detector of a Bragg peak, comprising: an emitter configured to emit a particle beam toward a target region in a first direction, thereby creating emission of electromagnetic radiation in the target region; a first detection module comprising a stack of first scintillators and first photosensors respectively connected to the first scintillators and configured to detect the electromagnetic radiation and convert into a first signal; a second detection module comprising a stack of second scintillators and second photosensors respectively connected to the second scintillators and configured to detect the electromagnetic radiation and convert into a second signal; and a coincidence detection circuit configured to determine an end point of the particle beam with respect to the first direction based on the first signal and the second signal.Type: GrantFiled: March 20, 2020Date of Patent: February 23, 2021Assignee: VIEWORKS CO., LTD.Inventor: Denny Lap Yen Lee
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Publication number: 20200298024Abstract: Provided is a real-time detector of a Bragg peak, comprising: an emitter configured to emit a particle beam toward a target region in a first direction, thereby creating emission of electromagnetic radiation in the target region; a first detection module comprising a stack of first scintillators and first photosensors respectively connected to the first scintillators and configured to detect the electromagnetic radiation and convert into a first signal; a second detection module comprising a stack of second scintillators and second photosensors respectively connected to the second scintillators and configured to detect the electromagnetic radiation and convert into a second signal; and a coincidence detection circuit configured to determine an end point of the particle beam with respect to the first direction based on the first signal and the second signal.Type: ApplicationFiled: March 20, 2020Publication date: September 24, 2020Inventor: Denny Lap Yen LEE
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Patent number: 10739475Abstract: A method of operating a radiation imaging system includes applying a bias voltage to a top electrode, receiving ionization radiation, wherein the ionization radiation penetrates an electrical insulation layer and generate a charge signal, storing the charge signal in a storage capacitor among a plurality of storage capacitors, changing a polarity of a gate line bias voltage of one row of transistors among a plurality of transistors, and integrating charges from storage capacitors connected to each other along orthogonal data lines.Type: GrantFiled: September 30, 2019Date of Patent: August 11, 2020Assignee: VIEWORKS CO., LTD.Inventor: Denny Lap Yen Lee
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Patent number: 10698123Abstract: A method of operating a radiation imaging system includes applying a bias voltage to a top electrode, receiving ionization radiation, wherein the ionization radiation penetrates an electrical insulation layer and generate a charge signal, storing the charge signal in a storage capacitor among a plurality of storage capacitors, changing a polarity of a gate line bias voltage of one row of transistors among a plurality of transistors, and integrating charges from storage capacitors connected to each other along orthogonal data lines.Type: GrantFiled: September 30, 2019Date of Patent: June 30, 2020Assignee: VIEWORKS CO., LTD.Inventor: Denny Lap Yen Lee
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Patent number: 10690787Abstract: A radiation imaging system includes a radiation-emitting device and a radiation imaging device. The radiation imaging device has an electrical insulation layer having a top surface and a bottom surface, a top electrode on the top surface of the electrical insulation layer, an array of pixel units electrically coupled to the electrical insulation layer, and an array of transistors connected to the array of pixel units.Type: GrantFiled: June 28, 2019Date of Patent: June 23, 2020Assignee: VIEWORKS CO., LTD.Inventor: Denny Lap Yen Lee
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Publication number: 20200025954Abstract: A method of operating a radiation imaging system includes applying a bias voltage to a top electrode, receiving ionization radiation, wherein the ionization radiation penetrates an electrical insulation layer and generate a charge signal, storing the charge signal in a storage capacitor among a plurality of storage capacitors, changing a polarity of a gate line bias voltage of one row of transistors among a plurality of transistors, and integrating charges from storage capacitors connected to each other along orthogonal data lines.Type: ApplicationFiled: September 30, 2019Publication date: January 23, 2020Applicant: VIEWORKS CO., LTD.Inventor: Denny Lap Yen Lee
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Publication number: 20200018864Abstract: A radiation imaging system includes a radiation-emitting device and a radiation imaging device. The radiation imaging device has an electrical insulation layer having a top surface and a bottom surface, a top electrode on the top surface of the electrical insulation layer, an array of pixel units electrically coupled to the electrical insulation layer, and an array of transistors connected to the array of pixel units.Type: ApplicationFiled: June 28, 2019Publication date: January 16, 2020Applicant: VIEWORKS CO., LTD.Inventor: Denny Lap Yen Lee
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Patent number: 10466370Abstract: A radiation imaging system of the present invention has an electrical insulation layer having a top surface and a bottom surface, a top electrode on the top surface of the electrical insulation layer, an array of pixel units electrically coupled to the electrical insulation layer, and an array of transistors connected to the array of pixel units.Type: GrantFiled: July 16, 2018Date of Patent: November 5, 2019Assignee: VIEWORKS CO., LTD.Inventor: Denny Lap Yen Lee
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Patent number: 10054695Abstract: The invention relates to a two steps image capture panel for recording x-ray image information. More particularly, the invention relates to a method and an apparatus for directing the internal electric field to capture the x-ray image first on an insulating surface, avoiding charge injection noise from the insulating surface, and then re-directing the internal electrical field to transfer the image charge from the insulating surface to a conductive readout electrode with electric field sufficient for charge gain during image readout.Type: GrantFiled: March 31, 2017Date of Patent: August 21, 2018Assignee: Vieworks Co., Ltd.Inventors: Denny Lap Yen Lee, Hyun Suk Jang
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Publication number: 20170285190Abstract: The invention relates to a two steps image capture panel for recording x-ray image information. More particularly, the invention relates to a method and an apparatus for directing the internal electric field to capture the x-ray image first on an insulating surface, avoiding charge injection noise from the insulating surface, and then re-directing the internal electrical field to transfer the image charge from the insulating surface to a conductive readout electrode with electric field sufficient for charge gain during image readout.Type: ApplicationFiled: March 31, 2017Publication date: October 5, 2017Inventors: Denny Lap Yen Lee, Hyun Suk Jang
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Patent number: 9459356Abstract: Disclosed is a novel composition for radiation image detector. The composition comprises an organic matrix comprising a charge transport material (CTM); and scintillating particles for absorbing radiation, being dispersed in the organic matrix, wherein the scintillating particles are in contact with a charge generation material (CGM).Type: GrantFiled: August 2, 2012Date of Patent: October 4, 2016Assignee: VIEWORKS CO., LTD.Inventors: Denny Lap Yen Lee, Hyun Suk Jang
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Publication number: 20160018535Abstract: The present invention relates to a radiation detector including a scintillator configured to emit light based on absorption of radiation, and a light detection unit configured to detect the light emitted from the scintillator. The light detection unit includes a top electrode, a plurality of n-type doped layers, a first intrinsic layer, a p-type doped layer, and a lower electrode.Type: ApplicationFiled: July 13, 2015Publication date: January 21, 2016Inventors: Denny Lap Yen LEE, Hyun Suk JANG
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Patent number: 8759781Abstract: Disclosed is a radiation imaging system comprising a layer for a radiation converter; a top electrode on the layer for a radiation converter; and an array of pixel unit electrically coupled to the layer for a radiation converter; wherein, said layer for a radiation converter comprises an organic matrix comprising a charge transport material (CTM); and scintillating particles for absorbing radiation, being dispersed in the organic matrix, wherein the scintillating particles are in contact with a charge generation material (CGM).Type: GrantFiled: August 2, 2012Date of Patent: June 24, 2014Assignee: Vieworks Co., Ltd.Inventors: Denny Lap Yen Lee, Hyun Suk Jang
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Publication number: 20130032723Abstract: Disclosed is a radiation imaging system comprising a layer for a radiation converter; a top electrode on the layer for a radiation converter; and an array of pixel unit electrically coupled to the layer for a radiation converter; wherein, said layer for a radiation converter comprises an organic matrix comprising a charge transport material (CTM); and scintillating particles for absorbing radiation, being dispersed in the organic matrix, wherein the scintillating particles are in contact with a charge generation material (CGM).Type: ApplicationFiled: August 2, 2012Publication date: February 7, 2013Inventors: DENNY LAP YEN LEE, Hyun Suk Jang
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Publication number: 20130032720Abstract: Disclosed is a novel composition for radiation image detector. The composition comprises an organic matrix comprising a charge transport material (CTM); and scintillating particles for absorbing radiation, being dispersed in the organic matrix, wherein the scintillating particles are in contact with a charge generation material (CGM).Type: ApplicationFiled: August 2, 2012Publication date: February 7, 2013Applicant: Vieworks Co., Ltd.Inventors: DENNY LAP YEN LEE, HYUN SUK JANG
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Patent number: 5895936Abstract: An image capture panel particularly useful in radiographic application is disclosed, in which the active image capture area of individual sensors having top and bottom charge collecting microplates arrayed in rows and columns is extended by providing an additional charge capture conductive strip over sensor areas which are not normally covered by a charge collecting microplate. The strip may be made integral with the top microplate or may be separate and electrically connected thereto at a single point.Type: GrantFiled: July 9, 1997Date of Patent: April 20, 1999Assignee: Direct Radiography Co.Inventor: Denny Lap Yen Lee
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Patent number: 5844243Abstract: A method for preparing X-ray image capture panels suitable for use in digital, radiography is disclosed. Array modules with sharp, steep edges suitable for tiling to form X-ray image capture panels are prepared placing an array module against an edge piece, and vacuum depositing a radiation detecting material on the top surface of the array module and the edge piece while simultaneously moving at least one of them relative to the other in the horizontal and/or the vertical direction.Type: GrantFiled: July 15, 1997Date of Patent: December 1, 1998Assignee: Direct Radiography Co.Inventors: Denny Lap Yen Lee, Lawrence Kai-Fun Cheung
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Patent number: 5661309Abstract: An electronic cassette contains an X-ray image capturing panel comprising a solid state transistor array and storage capacitors on which is built a layered structure including a photoconductive layer. The storage capacitors capture electrical charges generated in the photoconductive layer by incident X-radiation and the image-wise charges are read out by the transistor array. The cassette contains an internal power supply and a built-in image storage medium among a plurality of electronic components to allow self-contained operation and temporary recording of digitized values which are representative of the pattern of incident X-radiation.Type: GrantFiled: December 23, 1992Date of Patent: August 26, 1997Assignee: Sterling Diagnostic Imaging, Inc.Inventors: Lothar Siegfried Jeromin, Denny Lap Yen Lee, Edward Neill Lawrence
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Patent number: 5648660Abstract: A process and related apparatus for reducing noise due to addressing and switching the detection elements in a radiation detecting panel comprising an array of detection elements. Noise reduction is achieved in two steps, first by the use of a sample and hold circuit which compares a first signal indicative of switching noise held in a sample and hold circuit with a second signal which includes the switching noise and the desired data signal. The second step includes further reducing noise in the output signal present during readout of the detection elements by comparing the signal from certain elements in the array which have not been exposed to radiation with the signal from the exposed elements in the array to obtain an output with significantly reduced noise.Type: GrantFiled: January 5, 1996Date of Patent: July 15, 1997Assignee: Sterling Diagnostic Imaging, Inc.Inventors: Denny Lap Yen Lee, Eugene Francis Palecki, Cornell Lee Williams