Patents by Inventor Dat Tran

Dat Tran 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: 12569535
    Abstract: Compositions are provided for formulations of ?-defensin and/or a ?-defensin analog that are highly suitable for parenteral administration. Such formulations provide the ?-defensin and/or a ?-defensin analog in a slightly acidic buffer that includes propylene glycol. Surprisingly, Inventors have found that such formulation increase bioavailability of a ?-defensin and/or a ?-defensin analog so provided by at least a factor of 10 relative to conventional isotonic saline solutions, and that such formulations dramatically improved bioavailability in human subjects relative to animal models. Inventors have also found that such formulations advantageously exhibit low viscosity at high peptide concentrations, reducing injection volume permitting sterilization by simple filtration.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: March 10, 2026
    Assignee: University of Southern California
    Inventors: Dat Tran, Justin Schaal, Patti Tran, Michael E. Selsted
  • Patent number: 12205386
    Abstract: A method includes, by a computing system, receiving a querying image depicting a sampling area, processing the querying image using a single cluster detection model to identify one or more regions of the querying image depicting a cluster in the sampling area, processing the one or more regions using a cluster verification deep-learning model to determine whether each depicted cluster is a cell cluster, and determining that exactly one of the identified one or more regions depicts a cluster that is a cell cluster. The method further includes processing the region depicting the cell cluster using a morphology deep-learning model to determine that there is only one cell in the cell cluster and to determine that die morphology of the cell is acceptable.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: January 21, 2025
    Assignee: Genentech, Inc.
    Inventors: Zheng Li, Mandy Man Chu Yim, Bibi Ephraim, Dat Tran, Xinyu Liu, David Shaw
  • Publication number: 20220309666
    Abstract: A method includes, by a computing system, receiving a querying image depicting a sampling area, processing the querying image using a single cluster detection model to identify one or more regions of the querying image depicting a cluster in the sampling area, processing the one or more regions using a cluster verification deep-learning model to determine whether each depicted cluster is a cell cluster, and determining that exactly one of the identified one or more regions depicts a cluster that is a cell cluster. The method further includes processing the region depicting the cell cluster using a morphology deep-learning model to determine that there is only one cell in the cell cluster and to determine that die morphology of the cell is acceptable.
    Type: Application
    Filed: June 15, 2022
    Publication date: September 29, 2022
    Inventors: Zheng LI, Mandy Man Chu YIM, Bibi EPHRAIM, Dat TRAN, Xinyu LIU, David SHAW
  • Patent number: 11391672
    Abstract: An apparatus for measuring vapor partial pressures of water and carbon dioxide includes a pair of infrared (IR) sources and a pair of quad filter detectors are placed opposite to one another such that the vapor partial pressures of water (H2O) and carbon dioxide (CO2) is measured and quantified in a short pathlength gas cell.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: July 19, 2022
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Shahid Aslam, Daniel P. Glavin, Gerard T. Quilligan, Nicolas Gorius, Perry A. Gerakines, John R. Kolasinski, Dat Tran, Todd C. Purser
  • Patent number: 11372056
    Abstract: Techniques and apparatuses are provided for detecting a short circuit between pins of an integrated circuit package. The tested pins can be adjacent or non-adjacent on the package. Various types of short circuits can be detected, including resistive, diode and capacitive short circuits. Additionally, short circuits of a single pin can be tested, including a short circuit to a power supply or to ground. The test circuit includes a current mirror, where the input path has a first path connected to a first pin and a parallel second path connected to a second pin. A comparator is connected to the output path of the current mirror. By controlling the on and off states of transistors in the first and second paths, and evaluating the voltage of the output path, the short circuits can be detected.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: June 28, 2022
    Assignee: SanDisk Technologies LLC
    Inventors: Dat Tran, Loc Tu, Kirubakaran Periyannan, Nyi Nyi Thein
  • Patent number: 11293809
    Abstract: An apparatus include one or more DACs and a resistor divider are configured to generate a variable bias voltage VBIAS with respect to a CM voltage VCM. The CM voltage VCM is applied to a cathode of one or more thermopiles or a negative input of one or more amplifiers to prevent saturation and over range of one or more low voltage readout amplifiers and one or more ADCs.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: April 5, 2022
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Gerard Quilligan, Shahid Aslam, Nicolas Gorius, Daniel Glavin, John Kolasinski, Dat Tran
  • Publication number: 20210373085
    Abstract: Techniques and apparatuses are provided for detecting a short circuit between pins of an integrated circuit package. The tested pins can be adjacent or non-adjacent on the package. Various types of short circuits can be detected, including resistive, diode and capacitive short circuits. Additionally, short circuits of a single pin can be tested, including a short circuit to a power supply or to ground. The test circuit includes a current mirror, where the input path has a first path connected to a first pin and a parallel second path connected to a second pin. A comparator is connected to the output path of the current mirror. By controlling the on and off states of transistors in the first and second paths, and evaluating the voltage of the output path, the short circuits can be detected.
    Type: Application
    Filed: May 26, 2020
    Publication date: December 2, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Dat Tran, Loc Tu, Kirubakaran Periyannan, Nyi Nyi Thein
  • Publication number: 20210346463
    Abstract: Compositions are provided for formulations of ?-defensin and/or a ?-defensin analog that are highly suitable for parenteral administration. Such formulations provide the ?-defensin and/or a ?-defensin analog in a slightly acidic buffer that includes propylene glycol. Surprisingly, Inventors have found that such formulation increase bioavailability of a ?-defensin and/or a ?-defensin analog so provided by at least a factor of 10 relative to conventional isotonic saline solutions, and that such formulations dramatically improved bioavailability in human subjects relative to animal models. Inventors have also found that such formulations advantageously exhibit low viscosity at high peptide concentrations, reducing injection volume permitting sterilization by simple filtration.
    Type: Application
    Filed: October 9, 2019
    Publication date: November 11, 2021
    Inventors: Dat TRAN, Justin SCHAAL, Patti TRAN, Michael E. SELSTED
  • Patent number: 11086539
    Abstract: Consecutive logical block addresses (LBAs) are mapped to consecutive good blocks in a sequence of blocks in a memory device. For each bad block, a mapping process substitutes a next available good block. For a selected LBA, the mapping process determines a number X>1 of bad blocks before, and including, a corresponding block in the sequence, a number Y of bad blocks in the X blocks after the corresponding block in the sequence, and maps the LBA to a block which is X+Y blocks after the corresponding block, or, if the block which is X+Y blocks after the corresponding block is a bad block, to a next good block. The mapping technique can be used for a sequence of blocks in a trimmed die, where a bad block register stores physical block addresses of the trimmed away blocks.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: August 10, 2021
    Assignee: SanDisk Technologies LLC
    Inventors: Dat Tran, Loc Tu, Kirubakaran Periyannan
  • Publication number: 20210117086
    Abstract: Consecutive logical block addresses (LBAs) are mapped to consecutive good blocks in a sequence of blocks in a memory device. For each bad block, a mapping process substitutes a next available good block. For a selected LBA, the mapping process determines a number X>1 of bad blocks before, and including, a corresponding block in the sequence, a number Y of bad blocks in the X blocks after the corresponding block in the sequence, and maps the LBA to a block which is X+Y blocks after the corresponding block, or, if the block which is X+Y blocks after the corresponding block is a bad block, to a next good block. The mapping technique can be used for a sequence of blocks in a trimmed die, where a bad block register stores physical block addresses of the trimmed away blocks.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 22, 2021
    Applicant: SanDisk Technologies LLC
    Inventors: Dat Tran, Loc Tu, Kirubakaran Periyannan
  • Patent number: 10984883
    Abstract: A memory management method includes identifying memory segments of a memory device. The method also includes identifying, for each memory segment, a number of faulty columns and determining a total number of faulty columns for the memory device. The method also includes, in response to a determination that the total number of faulty columns is greater than a threshold, identifying a memory segment having a highest number of faulty columns. The method also includes disabling the memory segment. Another method includes identifying, for each memory segment, a number of faulty memory blocks and determining a total number of faulty memory blocks. The method also includes, in response to a determination that the total number of faulty memory blocks is greater than a threshold, identifying a memory segment having a highest number of faulty memory blocks. The method also includes disabling the memory segment.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 20, 2021
    Assignee: SanDiskTechnologies LLC
    Inventors: Sowjanya Tungala, Sini Balakrishnan, Sowjanya Sunkavelli, Sridhar Yadala, Dat Tran, Loc Tu, Kirubakaran Periyannan
  • Patent number: 10746594
    Abstract: An apparatus include one or more DACs and a resistor divider are configured to generate a variable bias voltage VBIAS with respect to a CM voltage VCM. The CM voltage VCM is applied to a cathode of one or more thermopiles or a negative input of one or more amplifiers to prevent saturation and over range of one or more low voltage readout amplifiers and one or more ADCs.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: August 18, 2020
    Assignee: United States of America as represented by the Administrator of NASA
    Inventors: Gerard Quilligan, Shahid Aslam, Nicolas Gorius, Daniel Glavin, John Kolasinski, Dat Tran
  • Patent number: 8951793
    Abstract: Disclosed are methods of isolating and using a population of FOXP3+ regulatory T cells in a variety of preventative and therapeutic approaches to autoimmune diseases, graft-versus-host disease and transplant rejection.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: February 10, 2015
    Assignee: The United States of America, as represented by The Secretary, Department of Health and Human Services
    Inventors: Dat Tran, Ethan M. Shevach
  • Publication number: 20110300119
    Abstract: Disclosed are methods of isolating and using a population of FOXP3+ regulatory T cells in a variety of preventative and therapeutic approaches to autoimmune diseases, graft-versus-host disease and transplant rejection.
    Type: Application
    Filed: August 21, 2009
    Publication date: December 8, 2011
    Applicant: THE UNITED STATES OF AMERICA, as represented by THE SECRETARY, DEPARTMENT OF HEALTH
    Inventors: Dat Tran, Ethan M. Shevach
  • Patent number: 7512014
    Abstract: Systems and methods in accordance with various embodiments can provide for comprehensive erase verification and defect detection in non-volatile semiconductor memory. In one embodiment, the results of erasing a group of storage elements is verified using a plurality of test conditions to better detect defective and/or insufficiently erased storage elements of the group. For example, the results of erasing a NAND string can be verified by testing charging of the string in a plurality of directions with the storage elements biased to turn on if in an erased state. If a string of storage elements passes a first test process or operation but fails a second test process or operation, the string can be determined to have failed the erase process and possibly be defective. By testing charging or conduction of the string in a plurality of directions, defects in any transistors of the string that are masked under one set of conditions may be exposed under a second set of bias conditions.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 31, 2009
    Assignee: SanDisk Corporation
    Inventors: Dat Tran, Kiran Ponnuru, Jian Chen, Jeffrey W. Lutze, Jun Wan
  • Patent number: 7508720
    Abstract: Systems and methods in accordance with various embodiments can provide for comprehensive erase verification and defect detection in non-volatile semiconductor memory. In one embodiment, the results of erasing a group of storage elements is verified using a plurality of test conditions to better detect defective and/or insufficiently erased storage elements of the group. For example, the results of erasing a NAND string can be verified by testing charging of the string in a plurality of directions with the storage elements biased to turn on if in an erased state. If a string of storage elements passes a first test process or operation but fails a second test process or operation, the string can be determined to have failed the erase process and possibly be defective. By testing charging or conduction of the string in a plurality of directions, defects in any transistors of the string that are masked under one set of conditions may be exposed under a second set of bias conditions.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 24, 2009
    Assignee: SanDisk Corporation
    Inventors: Dat Tran, Kiran Ponnuru, Jian Chen, Jeffrey W. Lutze, Jun Wan
  • Patent number: 7463532
    Abstract: Systems and methods in accordance with various embodiments can provide for comprehensive erase verification and defect detection in non-volatile semiconductor memory. In one embodiment, the results of erasing a group of storage elements is verified using a plurality of test conditions to better detect defective and/or insufficiently erased storage elements of the group. For example, the results of erasing a NAND string can be verified by testing charging of the string in a plurality of directions with the storage elements biased to turn on if in an erased state. If a string of storage elements passes a first test process or operation but fails a second test process or operation, the string can be determined to have failed the erase process and possibly be defective. By testing charging or conduction of the string in a plurality of directions, defects in any transistors of the string that are masked under one set of conditions may be exposed under a second set of bias conditions.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 9, 2008
    Assignee: SanDisk Corporation
    Inventors: Dat Tran, Kiran Ponnuru, Jian Chen, Jeffrey W. Lutze, Jun Wan
  • Patent number: 7450435
    Abstract: Systems and methods in accordance with various embodiments can provide for comprehensive erase verification and defect detection in non-volatile semiconductor memory. In one embodiment, the results of erasing a group of storage elements is verified using a plurality of test conditions to better detect defective and/or insufficiently erased storage elements of the group. For example, the results of erasing a NAND string can be verified by testing charging of the string in a plurality of directions with the storage elements biased to turn on if in an erased state. If a string of storage elements passes a first test process or operation but fails a second test process or operation, the string can be determined to have failed the erase process and possibly be defective. By testing charging or conduction of the string in a plurality of directions, defects in any transistors of the string that are masked under one set of conditions may be exposed under a second set of bias conditions.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: November 11, 2008
    Assignee: SanDisk Corporation
    Inventors: Dat Tran, Kiran Ponnuru, Jian Chen, Jeffrey W. Lutze, Jun Wan
  • Publication number: 20070015712
    Abstract: The invention provides theta defensin analogs having antimicrobial activity. The invention also provides a method of reducing or inhibiting growth or survival of a microorganism in an environment capable of sustaining the growth or survival of the microorganism, comprising administering an effective amount of a theta defensin analog to the environment, thereby reducing or inhibiting the growth or survival of the microorganism.
    Type: Application
    Filed: August 29, 2006
    Publication date: January 18, 2007
    Applicant: The Regents of the Universtiy of California
    Inventors: Michael Selsted, Dat Tran
  • Publication number: 20060133156
    Abstract: Systems and methods in accordance with various embodiments can provide for comprehensive erase verification and defect detection in non-volatile semiconductor memory. In one embodiment, the results of erasing a group of storage elements is verified using a plurality of test conditions to better detect defective and/or insufficiently erased storage elements of the group. For example, the results of erasing a NAND string can be verified by testing charging of the string in a plurality of directions with the storage elements biased to turn on if in an erased state. If a string of storage elements passes a first test process or operation but fails a second test process or operation, the string can be determined to have failed the erase process and possibly be defective. By testing charging or conduction of the string in a plurality of directions, defects in any transistors of the string that are masked under one set of conditions may be exposed under a second set of bias conditions.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 22, 2006
    Inventors: Dat Tran, Kiran Ponnuru, Jian Chen, Jeffrey Lutze, Jun Wan