Patents by Inventor Qihong Huang
Qihong Huang 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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Publication number: 20240132622Abstract: The present application relates to particular anti-PAD4 (peptidyl arginine deiminase 4) antibodies, nucleic acids encoding the antibodies, vectors and host cells comprising the nucleic acids, and methods of making and using the antibodies.Type: ApplicationFiled: July 20, 2023Publication date: April 25, 2024Applicant: Bristol-Myers Squibb CompanyInventors: Lin Hui Su, Ekaterina Deyanova, Burce Ergel Gurbuzbalaban, Mariana Nacht, Samantha Elaine Pace, Yun Wang, Qing Xiao, Ramakrishna Chandran, Shailesh Dudhgaonkar, Michael Louis Doyle, Michael Gilman, Richard Huang, Akbar Nayeem, Alok Sharma, Qihong Zhao
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Patent number: 11290021Abstract: A multi-function switch has a Junction-Field Effect Transistor (JFET) that outputs a voltage for both charging and timing/sense the synchronous rectifier controller. Current is provided to a synchronous rectifier controller from a JET having its drain conductively coupled to the drain electrode of the secondary side rectifying MOSFET, wherein the current from the source of the JET is used for both timing/sense and powering the synchronous rectifier controller. The JFET is biased for a fixed output with its source to gate voltage at a turn on threshold voltage of the JFET for charging. The JFET is fully conducting from the secondary side of transformer with a small voltage drop across the drain to source electrode of the secondary side rectifying MOSFET for timing/sense.Type: GrantFiled: January 30, 2020Date of Patent: March 29, 2022Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN) LTD.Inventors: Jian Yin, Qihong Huang
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Publication number: 20210242793Abstract: A multi-function switch has a Junction-Field Effect Transistor (JFET) that outputs a voltage for both charging and timing/sense the synchronous rectifier controller. Current is provided to a synchronous rectifier controller from a JET having its drain conductively coupled to the drain electrode of the secondary side rectifying MOSFET, wherein the current from the source of the JET is used for both timing/sense and powering the synchronous rectifier controller. The JFET is biased for a fixed output with its source to gate voltage at a turn on threshold voltage of the JFET for charging. The JFET is fully conducting from the secondary side of transformer with a small voltage drop across the drain to source electrode of the secondary side rectifying MOSFET for timing/sense.Type: ApplicationFiled: January 30, 2020Publication date: August 5, 2021Inventors: Jian Yin, Qihong Huang
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Patent number: 10763221Abstract: A high voltage (HV) converter implemented on a printed circuit board (PCB) includes a double diffused metal oxide semiconductor (DMOS) package comprising a lead frame and a main DMOS chip. The lead frame includes a gate section electrically connected to a gate electrode of the main DMOS chip, a source section electrically connected to a source electrode of the main DMOS chip and a drain section electrically connected to a drain electrode of the main DMOS chip. The PCB layout includes a large area source copper pad attached to and overlapping the source section of the DMOS package to facilitate cooling and a small area drain copper pad attached to and overlapping the drain section of the DMOS package to reduce electromagnetic interference (EMI) noise.Type: GrantFiled: August 29, 2019Date of Patent: September 1, 2020Assignee: ALPHA AND OMEGA SEMICONDUCTOR (CAYMAN), LTD.Inventors: Zhiqiang Niu, Kuang Ming Chang, Lin Chen, Ning Sun, QiHong Huang, Tzu-Hsin Lu
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Patent number: 10745761Abstract: The present invention relates to methods and systems for high risk screening, diagnosis, prognosis, and surveillance of lung cancer. Accordingly, in one aspect, the invention provides a method for diagnosing or evaluating whether a subject has, or is at risk of having, lung cancer such as NSCLS. The method comprises obtaining a first expression level of the AKAP4 gene of a population of cells from the blood of a test subject; and comparing the first expression level with a first predetermined reference value. A difference between the first expression level and first predetermined reference value correlates with a diagnosis or evaluation of a lung cancer.Type: GrantFiled: June 2, 2015Date of Patent: August 18, 2020Assignees: Valley Health System, The Wistar Institute of Anatomy and BiologyInventors: Kiranmai Gumireddy, Qihong Huang, Louise C. Showe, Ganepola A Ganepola
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Publication number: 20190385953Abstract: A high voltage (HV) converter implemented on a printed circuit board (PCB) includes a double diffused metal oxide semiconductor (DMOS) package comprising a lead frame and a main DMOS chip. The lead frame includes a gate section electrically connected to a gate electrode of the main DMOS chip, a source section electrically connected to a source electrode of the main DMOS chip and a drain section electrically connected to a drain electrode of the main DMOS chip. The PCB layout includes a large area source copper pad attached to and overlapping the source section of the DMOS package to facilitate cooling and a small area drain copper pad attached to and overlapping the drain section of the DMOS package to reduce electromagnetic interference (EMI) noise.Type: ApplicationFiled: August 29, 2019Publication date: December 19, 2019Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.Inventors: Zhiqiang Niu, Kuang Ming Chang, Lin Chen, Ning Sun, QiHong Huang, Tzu-Hsin Lu
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Patent number: 10438900Abstract: A high voltage (HV) converter implemented on a printed circuit board (PCB) includes a double diffused metal oxide semiconductor (DMOS) package comprising a lead frame and a main DMOS chip. The lead frame includes a gate section electrically connected to a gate electrode of the main DMOS chip, a source section electrically connected to a source electrode of the main DMOS chip and a drain section electrically connected to a drain electrode of the main DMOS chip. The PCB layout includes a large area source copper pad attached to and overlapping the source section of the DMOS package to facilitate cooling and a small area drain copper pad attached to and overlapping the drain section of the DMOS package to reduce electromagnetic interference (EMI) noise.Type: GrantFiled: March 29, 2018Date of Patent: October 8, 2019Assignee: Alpha and Omega Semiconductor (Cayman) Ltd.Inventors: Zhiqiang Niu, Kuang Ming Chang, Lin Chen, Ning Sun, QiHong Huang
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Publication number: 20190304924Abstract: A high voltage (HV) converter implemented on a printed circuit board (PCB) includes a double diffused metal oxide semiconductor (DMOS) package comprising a lead frame and a main DMOS chip. The lead frame includes a gate section electrically connected to a gate electrode of the main DMOS chip, a source section electrically connected to a source electrode of the main DMOS chip and a drain section electrically connected to a drain electrode of the main DMOS chip. The PCB layout includes a large area source copper pad attached to and overlapping the source section of the DMOS package to facilitate cooling and a small area drain copper pad attached to and overlapping the drain section of the DMOS package to reduce electromagnetic interference (EMI) noise.Type: ApplicationFiled: March 29, 2018Publication date: October 3, 2019Applicant: Alpha and Omega Semiconductor (Cayman) Ltd.Inventors: Zhiqiang Niu, Kuang Ming Chang, Lin Chen, Ning Sun, QiHong Huang, Tzu-Hsin Lu
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Publication number: 20190177799Abstract: The present invention relates to methods and systems for high risk screening, diagnosis, prognosis, and surveillance of lung cancer. Accordingly, in one aspect, the invention provides a method for diagnosing or evaluating whether a subject has, or is at risk of having, lung cancer such as NSCLS. The method comprises obtaining a first expression level of the AKAP4 gene of a population of cells from the blood of a test subject; and comparing the first expression level with a first predetermined reference value. A difference between the first expression level and first predetermined reference value correlates with a diagnosis or evaluation of a lung cancer.Type: ApplicationFiled: June 2, 2015Publication date: June 13, 2019Applicants: Valley Health System, The Wistar InstituteInventors: Kiranmai Gumireddy, Qihong Huang, Louise C. Showe, Ganepola A. Ganepola
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Patent number: 10250152Abstract: A flyback converter implements a Forced Zero Voltage Switching (ZVS) timing control by detecting a positive current excursion of the secondary winding current as the synchronous rectifier turn off trigger. The synchronous rectifier switch is turned on near the end of the switching cycle or the on duration is extended to develop a current ripple on the secondary winding current. The control circuit of the flyback converter detects a positive current excursion on the secondary winding current to turn off the synchronous rectifier and to start the next switching cycle. At this point, the voltage across the primary switch has been discharged and the primary switch can be turned on with zero drain-to-source voltage. In other embodiments, zero voltage switching for the off-transition of the primary switch is realized by coupling a capacitor across the primary switch or by coupling a capacitor across the primary winding, or both.Type: GrantFiled: May 4, 2018Date of Patent: April 2, 2019Assignee: Alpha and Omega Semiconductor IncorporatedInventors: Kuang Ming Chang, Lin Chen, Qihong Huang
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Publication number: 20180254712Abstract: A flyback converter implements a Forced Zero Voltage Switching (ZVS) timing control by detecting a positive current excursion of the secondary winding current as the synchronous rectifier turn off trigger. The synchronous rectifier switch is turned on near the end of the switching cycle or the on duration is extended to develop a current ripple on the secondary winding current. The control circuit of the flyback converter detects a positive current excursion on the secondary winding current to turn off the synchronous rectifier and to start the next switching cycle. At this point, the voltage across the primary switch has been discharged and the primary switch can be turned on with zero drain-to-source voltage. In other embodiments, zero voltage switching for the off-transition of the primary switch is realized by coupling a capacitor across the primary switch or by coupling a capacitor across the primary winding, or both.Type: ApplicationFiled: May 4, 2018Publication date: September 6, 2018Inventors: Kuang Ming Chang, Lin Chen, Qihong Huang
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Patent number: 9998021Abstract: A flyback converter implements a Forced Zero Voltage Switching (ZVS) timing control by detecting a positive current excursion of the secondary winding current as the synchronous rectifier turn off trigger. The synchronous rectifier switch is turned on near the end of the switching cycle or the on duration is extended to develop a current ripple on the secondary winding current. The control circuit of the flyback converter detects a positive current excursion on the secondary winding current to turn off the synchronous rectifier and to start the next switching cycle. At this point, the voltage across the primary switch has been discharged and the primary switch can be turned on with zero drain-to-source voltage. In other embodiments, zero voltage switching for the off-transition of the primary switch is realized by coupling a capacitor across the primary switch or by coupling a capacitor across the primary winding, or both.Type: GrantFiled: October 25, 2016Date of Patent: June 12, 2018Assignee: Alpha and Omega Semiconductor IncorporatedInventors: Kuang Ming Chang, Lin Chen, Qihong Huang
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Publication number: 20180115252Abstract: A flyback converter implements a Forced Zero Voltage Switching (ZVS) timing control by detecting a positive current excursion of the secondary winding current as the synchronous rectifier turn off trigger. The synchronous rectifier switch is turned on near the end of the switching cycle or the on duration is extended to develop a current ripple on the secondary winding current. The control circuit of the flyback converter detects a positive current excursion on the secondary winding current to turn off the synchronous rectifier and to start the next switching cycle. At this point, the voltage across the primary switch has been discharged and the primary switch can be turned on with zero drain-to-source voltage. In other embodiments, zero voltage switching for the off-transition of the primary switch is realized by coupling a capacitor across the primary switch or by coupling a capacitor across the primary winding, or both.Type: ApplicationFiled: October 25, 2016Publication date: April 26, 2018Inventors: Kuang Ming Chang, Lin Chen, Qihong Huang
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Patent number: 9899931Abstract: A flyback converter implements a Forced Zero Voltage Switching (ZVS) timing control by detecting a positive current excursion of the secondary winding current as the synchronous rectifier turn off trigger. The synchronous rectifier switch is turned on near the end of the switching cycle or the on duration is extended to develop a current ripple on the secondary winding current. The control circuit of the flyback converter detects a positive current excursion on the secondary winding current to turn off the synchronous rectifier and to start the next switching cycle. At this point, the voltage across the primary switch has been discharged and the primary switch can be turned on with zero drain-to-source voltage. In other embodiments, zero voltage switching for the off-transition of the primary switch is realized by coupling a capacitor across the primary switch or by coupling a capacitor across the primary winding, or both.Type: GrantFiled: October 25, 2016Date of Patent: February 20, 2018Assignee: Alpha and Omega Semiconductor IncorporatedInventors: Kuang Ming Chang, Lin Chen, Qihong Huang
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Publication number: 20170198359Abstract: Compositions and methods for diagnosing and treating breast cancer, including metastatic breast cancer, are provided. In one aspect, a diagnostic composition comprising a reagent which is capable of specifically complexing with, or identifying, GABRA3 is provided. In another aspect, a method of detecting breast cancer in a subject comprising measuring the level of GABRA3 in a biological sample from the subject is provided. In yet another aspect, a method of treating breast cancer is provided, the method comprising: measuring the level of GABRA3 in a biological sample from a subject and treating the subject with a reagent that inhibits the action of GABA when GABRA3 is detected in the sample or when there is an increase in the level of GABRA3 in the sample as compared to a control sample from a healthy subject.Type: ApplicationFiled: January 3, 2017Publication date: July 13, 2017Inventors: Qihong Huang, Kazuko Nishikura, Kiranmai Gumireddy
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Publication number: 20140255386Abstract: The present invention is a method for identifying agents which modulate microRNA activity. The invention involves contacting a cell harboring a microRNA and a microRNA binding sequence, which is operably linked to a nucleic acid molecule encoding a reporter protein, with a test agent and determining whether the test agent increases or decreases the expression of the reporter protein thereby identifying a microRNA modulator. Antagonists identified by this screening assay are provided, as are methods for using the same to inhibit microRNA activity and prevent or treat disease.Type: ApplicationFiled: July 24, 2012Publication date: September 11, 2014Applicants: NORTH CAROLINA STATE UNIVERSITY, THE WISTAR INSTITUTEInventors: Qihong Huang, Alexander Deiters, Kiranmai Gumireddy
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Publication number: 20130023498Abstract: The present invention is a method for identifying agents which modulate microRNA activity. The invention involves contacting a cell harboring a microRNA and a microRNA binding sequence, which is operably linked to a nucleic acid molecule encoding a reporter protein, with a test agent and determining whether the test agent increases or decreases the expression of the reporter protein thereby identifying a microRNA modulator. Antagonists identified by this screening assay are provided, as are methods for using the same to inhibit microRNA activity and prevent or treat disease.Type: ApplicationFiled: June 20, 2012Publication date: January 24, 2013Inventors: Qihong Huang, Alexander Deiters, Kiranmai Gumireddy
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Patent number: 8338392Abstract: The present invention is a method for identifying agents which modulate microRNA activity. The invention involves contacting a cell harboring a microRNA and a microRNA binding sequence, which is operably linked to a nucleic acid molecule encoding a reporter protein, with a test agent increases or decreases the expression of the reporter protein thereby identifying a microRNA modulator. Antagonists identified by this screening assay are provided, as are methods for using the same to inhibit microRNA activity and prevent or treat disease.Type: GrantFiled: February 20, 2009Date of Patent: December 25, 2012Assignees: The Wistar Institute, North Carolina State UniversityInventors: Qihong Huang, Alexander Deiters, Kiranmai Gumireddy
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Patent number: 8119404Abstract: The invention provides polypeptides comprising inhibitor of apoptosis protein (IAP) family members, such as BmIAP initially derived from Bombyx mori BmN cells, and nucleic acids encoding them, and methods for making and using these compositions, including their use for inhibiting apoptosis.Type: GrantFiled: July 8, 2010Date of Patent: February 21, 2012Assignee: Sanford-Burnham Medical Research InstituteInventors: Qihong Huang, John C. Reed, Bruce D. Hammock, Quinn L. Deveraux, Susumu Maeda, Hiroko Maeda, legal representative
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Publication number: 20120010177Abstract: The present invention is a method for identifying agents which modulate microRNA activity. The invention involves contacting a cell harboring a microRNA and a microRNA binding sequence, which is operably linked to a nucleic acid molecule encoding a reporter protein, with a test agent and determining whether the test agent increases or decreases the expression of the reporter protein thereby identifying a microRNA modulator. Antagonists identified by this screening assay are provided, as are methods for using the same to inhibit microRNA activity and prevent or treat disease.Type: ApplicationFiled: August 1, 2011Publication date: January 12, 2012Applicant: The Wistar Institute / North Carolina State UniversityInventors: Qihong Huang, Alexander Deiters, Kiranmai Gumireddy