Patents Examined by Thomas R Artman
  • Patent number: 11311260
    Abstract: In this X-ray phase imaging apparatus, at least one of a plurality of gratings is composed of a plurality of grating portions arranged along a third direction perpendicular to a first direction along which a subject or an imaging system is moved by a moving mechanism and a second direction along which an X-ray source, a detection unit, and a plurality of grating portions are arranged. The plurality of grating portions are arranged such that adjacent grating portions overlap each other when viewed in the first direction.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 26, 2022
    Assignee: Shimadzu Corporation
    Inventors: Satoshi Sano, Koichi Tanabe, Yukihisa Wada, Satoshi Tokuda, Akira Horiba, Naoki Morimoto
  • Patent number: 11313814
    Abstract: A detection scheme for x-ray small angle scattering is described. An x-ray small angle scattering apparatus may include a first grating and a complementary second grating. The first grating includes a plurality of first grating cells. The complementary second grating includes a plurality of second grating cells. The second grating is positioned relative to the first grating. A configuration of the first grating, a configuration of the second grating and the relative positioning of the grating are configured to pass one or more small angle scattered photons and to block one or more Compton scattered photons and one or more main x-ray photons.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 26, 2022
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Ge Wang, Guang Li, Wenxiang Cong
  • Patent number: 11315440
    Abstract: A respiratory gating phantom device includes a first airbag, a second airbag, a first catheter, a second catheter, a fixture, and an air pressure gating device. The first catheter and the second catheter are respectively installed in the first airbag and the second airbag. The fixture is provided with a phantom tumor and adjustably installed in the first catheter or the second catheter, thereby installing the phantom tumor in the first catheter or the second catheter. The air pressure gating device, connected to the first airbag and the second airbag, inflates and deflates the first airbag and the second airbag to simulate breathing. The first catheter and the second catheter respectively move along three-dimensional direction and two-dimensional direction in response to motions of the first airbag and the second airbag.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: April 26, 2022
    Assignee: NATIONAL CHUNG CHENG UNIVERSITY
    Inventor: Ying-Hao Yu
  • Patent number: 11284852
    Abstract: A radiation imaging apparatus is provided. The apparatus comprises: an imaging unit including a plurality of pixels configured to convert incident radiation into an electrical signal; a storage unit configured to store position information of a first pixel, among the pixels, which always outputs an abnormal pixel value; a correction unit configured to detect a second pixel, among the pixels, which is not stored in the storage unit and outputs an abnormal pixel value, and correct the pixel value of the second pixel; and an interpolation unit configured to, after image data output from the imaging unit is processed by the correction unit, generate a pixel value of the first pixel based on the position information and a pixel value of a pixel, among the pixels, which is arranged near the first pixel.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 29, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hidehiko Saito
  • Patent number: 11272895
    Abstract: Vessel roadmapping systems and methods that generate a display of live fluoroscopic imaging of an intravascular device within vessels of a patient and a pre-generated vessel roadmap. The systems and methods pan the vessel roadmap in coordination with movement of a field of view of an image acquisition machine obtaining the live fluoroscopic imaging so that registration of the live fluoroscopic imaging and the vessel roadmap is preserved in the displayed overlay.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: March 15, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Gijsbert Klaas Hamerslag
  • Patent number: 11266364
    Abstract: Systems and methods for reducing X-ray scatter during breast imaging, and more specifically during tomosynthesis imaging. In one embodiment, an anti-scatter grid having a plurality of septa may be configured to be positioned relative to an X-ray imaging device such that each septum of the plurality of septa extends along a direction substantially parallel to a coronal plane of a subject during imaging of the subject using the X-ray imaging device. The X-ray imaging device may be operable in a tomosynthesis mode for imaging of a breast of the subject and may include the anti-scatter grid disposed between a breast platform and the X-ray detector. The anti-scatter grid may be configured to move in a direction substantially parallel to a sagittal plane of the subject during tomosynthesis imaging.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: March 8, 2022
    Assignee: Hologic, Inc.
    Inventors: Thomas Farbizio, Kenneth F. Defreitas, Ian Shaw
  • Patent number: 11219418
    Abstract: A method for determining a CT focal point includes determining a first intensity of first radiation incident on a first detector unit of a scanner, wherein the scanner may include a non-uniform anti-scatter grid (ASG) and a radiation source, and the non-uniform ASG may be configured according to a first focal point of the radiation source. The method also includes determining a second intensity of second radiation incident on a second detector unit of the scanner, wherein the first radiation and the second radiation are emitted from the radiation source with a second focal point. The method further includes determining a displacement of the second focal point from the first focal point based on the first intensity and the second intensity.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: January 11, 2022
    Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventor: Yifeng Jiang
  • Patent number: 11212903
    Abstract: An apparatus for generating extreme ultraviolet (EUV) radiation includes a droplet generator configured to generate target droplets. An excitation laser is configured to heat the target droplets using excitation pulses to convert the target droplets to plasma. A deformable mirror is disposed in a path of the excitation laser. A controller is configured to adjust parameters of the excitation laser by controlling the deformable mirror based on a feedback parameter.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: December 28, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Ting-Ya Cheng, Chun-Lin Chang, Li-Jui Chen, Han-Lung Chang
  • Patent number: 11207038
    Abstract: A method is for collimator element adjustment of an x-ray system with a central x-ray axis and an optical axis of an optical imaging device differing therefrom. In an embodiment, the method includes displaying a first recorded optical image of the examination object; marking a target region as a region to be shown in the displayed first recorded optical image; determination of at least one first collimator element position value based on the marked target region in the first recorded optical image; and adjustment of the collimator element position with the at least one first collimator element position value determined.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: December 28, 2021
    Assignee: Siemens Healthcare GmbH
    Inventor: Sven-Martin Sutter
  • Patent number: 11207546
    Abstract: Systems and methods for determining beam asymmetry in a radiation treatment system using electronic portal imaging devices (EPIDs) without implementation of elaborate and complex EPID calibration procedures. The beam asymmetry is determined based on radiation scattered from different points in the radiation beam and measured with the same region of interest ROI of the EPID.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: December 28, 2021
    Assignee: VARIAN MEDICAL SYSTEMS INTERNATIONAL AG
    Inventors: Reto Ansorge, Mathias Lehmann, Stefan J. Thieme-Marti
  • Patent number: 11191516
    Abstract: Methods and systems are provided for powering an imaging system. In one embodiment, a system comprises a direct current (DC) bus, an x-ray source coupled to the DC bus, a power distribution unit (PDU) with an input coupled to a three-phase alternating current (AC) source and an output coupled to the DC bus, and an energy storage apparatus comprising a supercapacitor, the energy storage apparatus coupled to the DC bus and configured to store electrical energy output by the PDU in the supercapacitor, and output the stored electrical energy directly to the DC bus for powering the x-ray source. In this way, an x-ray source of an imaging system may be adequately powered beyond the limitations of a PDU without upgrading the electrical utilities of a hospital and without upgrading the PDU. The supercapacitor is protected by FPGA by measuring input current, voltage, temperature, and voltage balance.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: December 7, 2021
    Assignee: GE Precision Healthcare LLC
    Inventors: Saeid Mirzaei, Eric Aasen, Todd Filtz
  • Patent number: 11191507
    Abstract: Provided are: a device (1) and a system (100) for quantitatively calculating bone density by using an X-ray image of a bone pail, in particular, an alveolar bone; and an imaging assisting tool (4) for accurately and easily performing X-ray imaging of an alveolar bone. This bone density measurement device (1) comprises: an image display unit (101) for displaying X-ray images for an imaged bone part and a reference body on the same screen; a reference body density measurement unit (103) for measuring the density of the displayed X-ray image for the reference body; a bone part density measurement unit (105) for measuring the density of the displayed X-ray image for the bone part; and a bone density calculation unit (106) for calculating the hone density of the bone part by comparing the density of the X-ray image for the bone part with the density of the X-ray image for the reference body.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: December 7, 2021
    Assignee: MEDIA CO., LTD.
    Inventors: Shinji Shimoda, Kaoru Kobayashi, Akitoshi Katsumata, Hironobu Tsuji, Yosuke Tsuji, Tatsuro Hayashi
  • Patent number: 11191508
    Abstract: A method, system and computer readable storage media for segmenting individual intra-oral measurements and registering said individual intraoral measurements to eliminate or reduce registration errors. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images that can cause registration errors and reduce or eliminate the effect of these sources of registration errors.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: December 7, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Stan Mandelkern, Joseph Lasker, Fred Duewer
  • Patent number: 11193062
    Abstract: Disclosed are a quantum dot population including a plurality of cadmium free quantum dots, a quantum dot polymer composite including the same, and a display device including the same. The plurality of cadmium free quantum dots includes: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, wherein an average particle size of the plurality of cadmium free quantum dots is greater than or equal to about 5.5 nm, a standard deviation of particle sizes of the plurality of cadmium free quantum dots is less than or equal to about 20% of the average particle size, and an average solidity of the plurality of cadmium free quantum dots is greater than or equal to about 0.85.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: December 7, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO.. LTD.
    Inventors: Garam Park, Tae Gon Kim, Nayoun Won, Shin Ae Jun, Soo Kyung Kwon, Seon-Yeong Kim, Shang Hyeun Park, Jooyeon Ahn, Yuho Won, Eun Joo Jang, Hyo Sook Jang
  • Patent number: 11187647
    Abstract: In accordance with an embodiment, a method of measuring a gas concentration includes modulating an infrared light source according to a frequency-hopped sequence or according to a pulse sequence, receiving a microphone signal from an output of a microphone acoustically coupled to a gas exposed to infrared light produced by the infrared light source; bandpass filtering the microphone signal using a bandpass filter; and estimating the gas concentration from the filtered microphone signal.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: November 30, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Cecilia Carbonelli, Renato Bessegato, Wolfgang Furtner
  • Patent number: 11169098
    Abstract: Disclosed herein is an x-ray backscatter apparatus for non-destructive inspection of a part. The apparatus comprises an emission shaping mechanism that is configured to receive an electron emission from a cathode and to adjust a shape of the electron emission from a circular cross-sectional shape into a first elliptical cross-sectional shape. The x-ray source further comprises an anode that is configured to convert the electron emission into an unfiltered x-ray emission having a second elliptical cross-sectional shape. The apparatus also comprises an x-ray filter that comprises an emission aperture having a cross-sectional area smaller than an area of the second elliptical cross-sectional shape of the unfiltered x-ray emission. The x-ray filter is located relative to the unfiltered x-ray emission to allow only a portion of the unfiltered x-ray emission to pass through the emission aperture and form a filtered x-ray emission.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 9, 2021
    Assignee: The Boeing Company
    Inventor: Morteza Safai
  • Patent number: 11166688
    Abstract: A method, system and computer readable storage media for segmenting individual intra-oral measurements and registering said individual intraoral measurements to eliminate or reduce registration errors. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images that can cause registration errors and reduce or eliminate the effect of these sources of registration errors.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: November 9, 2021
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Stan Mandelkern, Joseph Lasker, Fred Duewer
  • Patent number: 11160516
    Abstract: Disclosed is a breast imaging system including a compressive sensing absorber (CSA) including a set of materials distributed in a medium to exhibit a random pattern of partial gamma ray absorption over different positions of the set of materials such that gamma ray emission from a breast traveling through the CSA is partially absorbed and is partially scattered by the random pattern to produce an output gamma ray radiation pattern having gamma rays in a range of different directions, a gamma imaging device configured to collect gamma rays from the output gamma ray radiation pattern produced by the CSA to convert the collected gamma rays of the breast gamma ray emission from the breast into imaging signals representing an image of the breast, and an imaging processing device configured to reconstruct images in 2D or 3D based on a spatial distribution of the collected gamma rays from the breast.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: November 2, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Sebastian Obrzut
  • Patent number: 11156569
    Abstract: A X-ray fluorescence spectrometer of the present invention simultaneously generates an analytical pulse-height width profile and a narrow pulse-height width profile that are distributions of intensities of secondary X-rays (7) against scan angles (2?) set by an interlocking unit (10) on the basis of a differential curve which is output by a multichannel pulse-height analyzer (13), as well as a predetermined analytical pulse-height width for an analytical line that is a primary reflection line and a predetermined narrow pulse-height width that is narrower than the analytical pulse-height width. Identification of the analytical lines is performed for the analytical pulse-height width profile and the narrow pulse-height width profile, and any analytical line identified only in the narrow pulse-height width profile is added to the analytical lines identified in the analytical pulse-height width profile to obtain an identification result of the analytical lines.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: October 26, 2021
    Assignee: RIGAKU CORPORATION
    Inventors: Yasujiro Yamada, Shinya Hara, Takashi Matsuo
  • Patent number: 11154267
    Abstract: A method, system and computer readable storage media for segmenting individual intra-oral measurements and registering said individual intraoral measurements to eliminate or reduce registration errors. An operator may use a dental camera to scan teeth and a trained deep neural network may automatically detect portions of the input images that can cause registration errors and reduce or eliminate the effect of these sources of registration errors.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: October 26, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Stan Mandelkern, Joseph Lasker, Fred Duewer