Patents by Inventor Ahmad Yekta

Ahmad Yekta 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: 8687857
    Abstract: Systems and methods for extracting information about an organism of interest, such as an atlas of the organism of interest; a storage device for at least temporarily storing an image of the organism of interest; and an operating device that automatically creates a map of the image of the organism of interest and automatically compares the map of the image to the atlas of the organism.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: April 1, 2014
    Assignee: General Electric Company
    Inventors: Musodiq O. Bello, Jens Rittscher, Ahmad Yekta, Dirk Ryan Padfield, Jilin Tu
  • Patent number: 8649089
    Abstract: A line confocal microscope system, comprising an illumination system with a source of collimated light and a line forming optics arranged to provide a line shaped illumination area to be scanned over a sample, an image receiving system, and two or more objective lenses that are interchangeable in the optical path to provide different magnification, wherein the objective lenses have different aperture diameters, and the illumination system comprises a beam shape transformer arranged in between the source of collimated light and the line forming optics to selectively transform the cross-sectional shape of the collimated beam of light transmitted to the line forming optics to a predetermined shape in response to the back aperture diameter of the objective lens that is arranged in the optical path.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: February 11, 2014
    Assignee: GE Healthcare Bio-Sciences Corp.
    Inventors: Shaohong Wang, Ahmad Yekta
  • Patent number: 8508588
    Abstract: The present invention is directed to method and system for image processing of test wells on a microplates wherein the microplates' test well wall boundaries are identified through the use of a candidate edge image wherein the candidate edge image represents locations of one or more segments of the wall boundaries.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: August 13, 2013
    Assignee: General Electric Company
    Inventors: Musodiq Olatayo Bello, Jens Rittscher, Bikash Chandra Mahato, Ahmad Yekta, Jilin Tu, Ying Li
  • Publication number: 20130087718
    Abstract: A confocal fluorescence lifetime imaging (FLIM) system comprising a pulsed tuneable excitation light source arranged to provide excitation radiation to an illumination area on a target, scanning means for scanning the illumination area across the target, and at least one detector for detecting fluorescent emission from the target, wherein the pulsed light source comprises a line forming unit arranged to form a line shaped illumination area of pulsed excitation light on the target, and wherein the detector comprises shutter means arranged to operate in synchronization with the pulsed light source enabling detection of time-resolved fluorescent emission intensity from the target.
    Type: Application
    Filed: June 27, 2011
    Publication date: April 11, 2013
    Applicant: GE HEALTHCARE BIO-SCIENCES CORP.
    Inventors: Erwen Mei, Ahmad Yekta
  • Publication number: 20110285837
    Abstract: The present invention is directed to method and system for image processing of test wells on a microplates wherein the microplates' test well wall boundaries are identified through the use of a candidate edge image wherein the candidate edge image represents locations of one or more segments of the wall boundaries.
    Type: Application
    Filed: May 19, 2010
    Publication date: November 24, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Musodiq Olatayo Bello, Jens Rittscher, Bikash Chandra Mahato, Ahmad Yekta, Jilin Tu, Ying Li
  • Patent number: 8063386
    Abstract: A system and method that allows for time-resolved fluorescent imaging of fluorescent samples. The user is able to receive temporally filtered pictures of the sample with a reduced amount of the scattered excitation light and the short lived background fluorescence. The system allows for adjustment of fluorescent gating time and delay time.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: November 22, 2011
    Assignee: GE Healthcare Bio-Sciences Corp.
    Inventors: Ahmad Yekta, Pavel A. Fomitchov, Joseph Masino
  • Publication number: 20110188105
    Abstract: A line confocal microscope system, comprising an illumination system with a source of collimated light and a line forming optics arranged to provide a line shaped illumination area to be scanned over a sample, an image receiving system, and two or more objective lenses that are interchangeable in the optical path to provide different magnification, wherein the objective lenses have different aperture diameters, and the illumination system comprises a beam shape transformer arranged in between the source of collimated light and the line forming optics to selectively transform the cross-sectional shape of the collimated beam of light transmitted to the line forming optics to a predetermined shape in response to the back aperture diameter of the objective lens that is arranged in the optical path.
    Type: Application
    Filed: October 7, 2009
    Publication date: August 4, 2011
    Applicant: GE HEALTHCARE BIO-SCEINCES CORP.
    Inventors: Shaohong Wang, Ahmad Yekta
  • Publication number: 20100119127
    Abstract: Systems and methods for extracting information about an organism of interest, generally comprising, an atlas of the organism of interest; a storage device for at least temporarily storing an image of the organism of interest; and an operating device that automatically creates a map of the image of the organism of interest and automatically compares the map of the image to the atlas of the organism.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 13, 2010
    Applicant: General Electric Company
    Inventors: Musodiq O. Bello, Jens Rittscher, Ahmad Yekta, Dirk Ryan Padfield, Jilin Tu
  • Publication number: 20100119119
    Abstract: Systems and methods for screening zebrafish comprising, a storage device for at least temporarily storing an image of a zebrafish to be screened; a zebrafish atlas; and an operating device that automatically screens the zebrafish at least in part by automatically comparing one or more anatomical features of the zebrafish to one or more standards.
    Type: Application
    Filed: March 13, 2009
    Publication date: May 13, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jens Rittscher, Ahmad Yekta, Musodiq O. Bello, Jilin Tu, Wen Lin Seng
  • Publication number: 20100090127
    Abstract: This invention provides a system and method that allows for time-resolved fluorescent imaging of fluorescent samples. The user is able to receive temporally filtered pictures of the sample with a reduced amount of the scattered excitation light and the short lived background fluorescence. The system allows for adjustment of fluorescent gating time and delay time.
    Type: Application
    Filed: January 23, 2008
    Publication date: April 15, 2010
    Applicant: GE HEALTHCARE BIO-SCIENCES CORP.
    Inventors: Ahmad Yekta, Pavel A. Fomitchov, Joseph Masino
  • Publication number: 20070206192
    Abstract: A system and method for multimode imaging of at least one sample is disclosed. The system includes at least one light source; an optical system selected responsive to a mode of operation of the imaging system; and a detector capable of selective reading of pixels. The at least one sample is moved elative to the optical system using a sample movement technique selected from the group consisting of step sample moving and continuous sample moving. The method includes the steps of (1) selecting a mode of operation for the imaging system; (2) transmitting light from at least one light source through an optical system selected in response to the mode of operation for the imaging system; (3) moving the at least one sample relative to the optical system using a sample movement technique selected from the group consisting of step sample moving and continuous sample moving; and (4) selectively reading pixels with a detector.
    Type: Application
    Filed: March 1, 2006
    Publication date: September 6, 2007
    Applicant: General Electric Company
    Inventors: Pavel Fomitchov, Eugene Barash, Ahmad Yekta, Joseph Masino
  • Patent number: 6806455
    Abstract: The present invention relates to an apparatus and method for imaging time resolved fluorescence in biochemical and medical samples. In a primary aspect, the device includes a lens of large aperture, a flash lamp in the illumination path, a fast-acting solid state shutter or a gated detector in the emission path, a device for delivering homogenous monochromatic illumination to a plurality of wells distributed within a microwell plate, a digital camera of high quantum efficiency, and a computer under computer control, the lamp is pulsed at short intervals. The fast-acting emission shutter or gated detector operates to limit exposure of the camera to a period some microseconds after the extinction of each lamp pulse, during which only delayed fluorescence is transmitted to the camera. The invention achieves simultaneous time resolved imaging of a plurality of samples, with high sensitivity and high throughput.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: October 19, 2004
    Assignee: Imaging Research Inc.
    Inventors: Carlos Zarate, Paul Donders, Ahmad Yekta, Zahra Masoumi, Peter Ramm
  • Publication number: 20030160151
    Abstract: The present invention relates to an apparatus and method for imaging time resolved fluorescence in biochemical and medical samples. In a primary aspect, the device includes a lens of large aperture, a flash lamp in the illumination path, a fast-acting solid state shutter or a gated detector in the emission path, a device for delivering homogenous monochromatic illumination to a plurality of wells distributed within a microwell plate, a digital camera of high quantum efficiency, and a computer under computer control, the lamp is pulsed at short intervals. The fast-acting emission shutter or gated detector operates to limit exposure of the camera to a period some microseconds after the extinction of each lamp pulse, during which only delayed fluorescence is transmitted to the camera. The invention achieves simultaneous time resolved imaging of a plurality of samples, with high sensitivity and high throughput.
    Type: Application
    Filed: September 30, 2002
    Publication date: August 28, 2003
    Inventors: Carlos Zarate, Paul Donders, Ahmad Yekta, Zahra Masoumi, Peter Ramm
  • Publication number: 20020048817
    Abstract: Process and formulation are described allowing fabrication of absorbance and fluorescence standards in cuvettes and micro-well plate, and other desirable containers, with particular application to drug discovery and high throughput screening of bioactive systems. The material medium is capable of incorporating a large number of dyes, individually or in combination, and can closely mimic real aqueous assays in optical properties such as the dye spectra, transparency, refractive index, and shapes of meniscus. The medium is compatible with addition of formulation components for control of foaming, vapor pressure, freezing point, dye bleaching, and molecular rotational correlation times. The process starts with the dispensing of a fluid dye-containing liquid into the vessel of choice, and its subsequent viscosification by chemical or physical means into a viscous gel. After further processing for stability, the container can be sealed with appropriate means.
    Type: Application
    Filed: August 29, 2001
    Publication date: April 25, 2002
    Applicant: Imaging Research Inc.
    Inventors: Ahmad Yekta, Zahra Masoumi