Patents by Inventor Kunal Ghosh

Kunal Ghosh 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).

  • Publication number: 20160004063
    Abstract: Systems, methods and devices are implemented for microscope imaging solutions. One embodiment of the present disclosure is directed toward an epifluorescence microscope. The microscope includes an image capture circuit including an array of optical sensor. An optical arrangement is configured to direct excitation light of less than about 1 mW to a target object in a field of view of that is at least 0.5 mm2 and to direct epi-fluorescence emission caused by the excitation light to the array of optical sensors. The optical arrangement and array of optical sensors are each sufficiently close to the target object to provide at least 2.5 ?m resolution for an image of the field of view.
    Type: Application
    Filed: September 17, 2015
    Publication date: January 7, 2016
    Inventors: Kunal Ghosh, Laurie Burns, Abbas El Gamal, Mark J. Schnitzer, Eric Cocker, Tatt Wei Ho
  • Patent number: 9195043
    Abstract: Systems, methods and devices are implemented for microscope imaging solutions. One embodiment of the present disclosure is directed toward an epifluorescence microscope. The microscope includes an image capture circuit including an array of optical sensor. An optical arrangement is configured to direct excitation light of less than about 1 mW to a target object in a field of view of that is at least 0.5 mm2 and to direct epi-fluorescence emission caused by the excitation light to the array of optical sensors. The optical arrangement and array of optical sensors are each sufficiently close to the target object to provide at least 2.5 ?m resolution for an image of the field of view.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: November 24, 2015
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Kunal Ghosh, Laurie Burns, Abbas El Gamal, Mark J. Schnitzer, Eric Cocker, Tatt Wei Ho
  • Publication number: 20150309295
    Abstract: The invention provides miniaturized devices, systems and methods for imaging of biological specimens. The devices and system provide accurate alignment and modular mounting of imaging components internally and in relation to the target subject. In some embodiments, the invention provides devices, systems and methods for in vivo fluorescent brain imaging in freely-behaving rodents.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 29, 2015
    Applicant: INSCOPIX, INAC.
    Inventors: Eric COCKER, Kunal GHOSH
  • Publication number: 20140142882
    Abstract: Methods and systems for prediction of fill factor in heterojunction solar cells through lifetime spectroscopy are provided. In accordance with some embodiments, methods for categorizing fill factor in a solar cell are provided, the methods comprising: determining lifetime values of the solar cell at different minority carrier concentrations; determining a lifetime curve shape for the solar cell based on the determined lifetime values; and categorizing the fill factor of the solar cell based on the determined lifetime curve shape using a hardware processor.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 22, 2014
    Applicants: Arizona St
    Inventors: Kunal Ghosh, Stuart Bowden
  • Publication number: 20140137933
    Abstract: Devices comprising: an absorbing medium (AM) having first and second sides; a first membrane layer (ML) having first and second sides, wherein the first side of the first ML contacts the first side of the AM; a second ML having first and second sides, wherein the first side of the second ML contacts the second side of the AM; a first contact in contact with the second side of the first ML; and a second contact in contact with the second side of the second ML, wherein a first band alignment mismatch between the first contact and the AM causes a first surface of the AM on the first side of the AM to be in inversion, and wherein a second band alignment mismatch between the second contact and the AM causes a second surface of the AM on the second side of the AM to be under accumulation.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 22, 2014
    Applicant: Arizona Board of Regents, a body corporate of the State of Arizona, acting for and on behalf of Ariz
    Inventors: Kunal Ghosh, Stuart Bowden, Christiana Honsberg
  • Publication number: 20130260382
    Abstract: Systems and methods are provided for imaging a sample. A portable slide reader may be provided that may be configured to accept a slide and that may contain one or more miniature microscopes therein. The slide reader may include a display showing images captured by the microscopes. The slide may be movable relative to the microscopes and the position of the captured image may be controllable. In some instances, images captured may be useful for DNA sequencing. Multiple color ranges may be captured for a target region, corresponding to different nucleobases.
    Type: Application
    Filed: February 14, 2013
    Publication date: October 3, 2013
    Inventors: Kunal Ghosh, Eric Cocker, Mark J. Schnitzer
  • Publication number: 20120062723
    Abstract: Systems, methods and devices are implemented for microscope imaging solutions. One embodiment of the present disclosure is directed toward an epifluorescence microscope. The microscope includes an image capture circuit including an array of optical sensor. An optical arrangement is configured to direct excitation light of less than about 1 mW to a target object in a field of view of that is at least 0.5 mm2 and to direct epi-fluorescence emission caused by the excitation light to the array of optical sensors. The optical arrangement and array of optical sensors are each sufficiently close to the target object to provide at least 2.5 ?m resolution for an image of the field of view.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 15, 2012
    Inventors: Kunal Ghosh, Laurie Burns, Abbas El Gamal, Mark J. Schnitzer, Eric Cocker, Tatt Wei Ho
  • Patent number: 6776225
    Abstract: A heat exchanger assembly for a vehicle comprising at least one manifold having walls defining a chamber for retaining fluid. A mounting device is secured to the wall of the manifold. The mounting device includes a seat portion adapted to receive a fluid transmission line. The mounting device further includes an opening extending from the seat portion and aligned with an aperture in the manifold for providing a fluid passageway between the manifold and the fluid transmission line. In addition, the mounting device includes at least one indentation formed therein for capturing contaminates and preventing an intrusion of the contaminates into the seat portion.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: August 17, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Frank Joseph Leitch, Kunal Ghosh
  • Patent number: 6749901
    Abstract: A condenser that is to be brazed in a radiant energy oven has a significant, localized mass differential which would, without further treatment, create a significant temperature differential across the condenser in the braze oven. This is compensated for, in the method of the invention, by thermally spraying onto the surface of the higher mass portion a rough surface layer of a compatible material that increases the emissivity of that portion sufficiently, relative to the rest of the condenser, to decrease the temperature differential that would otherwise occur.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: June 15, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Kunal Ghosh, Michael Czajkowski, Frank Joseph Leitch, Christopher Alfred Fuller, Lorraine Anders
  • Publication number: 20030230402
    Abstract: A heat exchanger assembly for a vehicle comprising at least one manifold having walls defining a chamber for retaining fluid. A mounting device is secured to the wall of the manifold. The mounting device includes a seat portion adapted to receive a fluid transmission line. The mounting device further includes an opening extending from the seat portion and aligned with an aperture in the manifold for providing a fluid passageway between the manifold and the fluid transmission line. In addition, the mounting device includes at least one indentation formed therein for capturing contaminates and preventing an intrusion of the contaminates into the seat portion.
    Type: Application
    Filed: June 13, 2002
    Publication date: December 18, 2003
    Inventors: Frank Joseph Leitch, Kunal Ghosh
  • Publication number: 20020115035
    Abstract: A radiation furnace assembly for use in heating parts. The radiation furnace assembly includes a muffle having a top side, a bottom side, and a first side wall The muffle defines a chamber with a main heating portion and a first side heating portion. Disposed adjacent to the muffle are top and bottom heating elements. A first control device is used to adjust the temperature of at least one of the top and bottom heating elements thus controlling the temperature within the main heating portion of the chamber. A first side heating element is disposed adjacent to the first side wall of the muffle. A second control device is used to adjust the temperature of the first side heating element independently of the top and bottom heating elements to increase the temperature within the first side heating portion of the chamber relative to the main heating portion.
    Type: Application
    Filed: February 16, 2001
    Publication date: August 22, 2002
    Applicant: Delphi Technologies, Inc.
    Inventors: Kunal Ghosh, Lorraine M. Anders
  • Patent number: 6435866
    Abstract: A radiation furnace assembly for use in heating parts. The radiation furnace assembly includes a muffle having a top side, a bottom side, and a first side wall. The muffle defines a chamber with a main heating portion and a first side heating portion. Disposed adjacent to the muffle are top and bottom heating elements. A first control device is used to adjust the temperature of at least one of the top and bottom heating elements thus controlling the temperature within the main heating portion of the chamber. A first side heating element is disposed adjacent to the first side wall of the muffle. A second control device is used to adjust the temperature of the first side heating element independently of the top and bottom heating elements to increase the temperature within the first side heating portion of the chamber relative to the main heating portion.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: August 20, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Kunal Ghosh, Lorraine M. Anders