Patents by Inventor J. Yuan
J. Yuan 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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Patent number: 11991196Abstract: Autoencoder-based anomaly detection methods have been used in identifying anomalous users from large-scale enterprise logs with the assumption that adversarial activities do not follow past habitual patterns. Most existing approaches typically build models by reconstructing single-day and individual-user behaviors. However, without capturing long-term signals and group-correlation signals, the models cannot identify low-signal yet long-lasting threats, and will incorrectly report many normal users as anomalies on busy days, which, in turn, leads to a high false positive rate. A method is provided based on compound behavior, which takes into consideration long-term patterns and group behaviors. The provided method leverages a novel behavior representation and an ensemble of deep autoencoders and produces an ordered investigation list.Type: GrantFiled: March 3, 2022Date of Patent: May 21, 2024Assignee: QATAR FOUNDATION FOR EDUCATION, SCIENCE AND COMMUNITY DEVELOPMENTInventors: Issa M. Khalil, Ting Yu, Eui J. Choo, Lun-Pin Yuan, Sencun Zhu
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Publication number: 20240141049Abstract: The present invention provides Wnt pathway agonists and related compositions, which may be used in any of a variety of therapeutic methods for the treatment of diseases.Type: ApplicationFiled: July 28, 2023Publication date: May 2, 2024Inventors: Yang LI, Tom Zhiye YUAN, Aaron Ken SATO, Wen-Chen YEH, Claudia Yvonne JANDA, Tristan William FOWLER, Helene BARIBAULT, Kuo-Pao LAI, Liqin XIE, Randall J. BREZSKI, Chenggang LU
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Publication number: 20240076463Abstract: Disclosed is a method of reducing the lambda aging of a polyurethane foam, a polyisocyanurate foam or a mixture thereof comprising producing the foam from a foamable composition comprising an isocyanate and a polyol premix composition comprising a polyol or mixture of polyols, a blowing agent selected from the group consisting of 1,3,3,3-tetrafluoropropene (1234ze), 1,1,1,4,4,4-hexafluorobut-2-ene (1336mzzm) and/or 1-chloro-3,3,3-trifluoropropene (1233zd) and a flame retardant wherein the flame retardant comprises 25 phpp or less of a phosphate based flame retardant.Type: ApplicationFiled: June 13, 2017Publication date: March 7, 2024Inventors: HUIJUN-PARK YUAN, BIN YU, YIU KEUNG LING, DAVID J. WILLIAMS
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Patent number: 11906823Abstract: A reconfigurable polarization rotator is formed of an array of very small liquid crystal (LC) cells (e.g., cells of less than 10 ?m in width, termed “microcells”), referred to hereinafter as “microcells”. Each LC microcell is addressable by a separate electrical voltage input that independently controls the polarization rotation performed by the associated LC microcell. By defining a set of adjacent microcells to be held at the same voltage level, that group may be used to form a polarization rotator window of a proper size for a first fiber array configuration. When a fiber array of a different configuration (say, an array with twice the pitch) is used, a different-sized group of adjacent LC microcells is held at a common voltage level so as to form a reconfigured “window” of a new dimension.Type: GrantFiled: April 20, 2021Date of Patent: February 20, 2024Assignee: II-VI Delaware, Inc.Inventors: Guomin Jiang, Helen Chen, Haiji J. Yuan, Lixin Wang, WenYi Cao, Xuewen Lu, Qingyu Li, Yimin Ji
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Patent number: 11789331Abstract: A voltage-controlled optical wedge is formed by creating an adjustable voltage gradient along the length of a relatively large-sized LC cell. A pair of bias voltages (AC voltages) are applied at the opposing side terminations of the LC cell, their RMS values selected to create a continuous phase variation along the length of the cell, where a defined phase variation is associated with a specific beam steering angle. Adjustments in the applied bias voltages (specifically, changes in the RMS values of the bias voltages) result in changing the beam steering angle, providing for active, controllable beam steering as a function of time. The LC cell may be configured to provide either a linear or nonlinear continuous phase variation, as preferred for different beam steering applications.Type: GrantFiled: June 23, 2022Date of Patent: October 17, 2023Inventors: Qingyu Li, Jack R. Kelly, Guomin Jiang, Haiji J. Yuan, Yimin Ji, Helen Chen
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Publication number: 20220357630Abstract: A voltage-controlled optical wedge is formed by creating an adjustable voltage gradient along the length of a relatively large-sized LC cell. A pair of bias voltages (AC voltages) are applied at the opposing side terminations of the LC cell, their RMS values selected to create a continuous phase variation along the length of the cell, where a defined phase variation is associated with a specific beam steering angle. Adjustments in the applied bias voltages (specifically, changes in the RMS values of the bias voltages) result in changing the beam steering angle, providing for active, controllable beam steering as a function of time. The LC cell may be configured to provide either a linear or nonlinear continuous phase variation, as preferred for different beam steering applications.Type: ApplicationFiled: June 23, 2022Publication date: November 10, 2022Applicant: II-VI Delaware, Inc.Inventors: Qingyu Li, Jack R. Kelly, Guomin Jiang, Haiji J. Yuan, Yimin Ji, Helen Chen
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Publication number: 20220334416Abstract: A reconfigurable polarization rotator is formed of an array of very small liquid crystal (LC) cells (e.g., cells of less than 10 ?m in width, termed “microcells”), referred to hereinafter as “microcells”. Each LC microcell is addressable by a separate electrical voltage input that independently controls the polarization rotation performed by the associated LC microcell. By defining a set of adjacent microcells to be held at the same voltage level, that group may be used to form a polarization rotator window of a proper size for a first fiber array configuration. When a fiber array of a different configuration (say, an array with twice the pitch) is used, a different-sized group of adjacent LC microcells is held at a common voltage level so as to form a reconfigured “window” of a new dimension.Type: ApplicationFiled: April 20, 2021Publication date: October 20, 2022Applicant: II-VI Delaware, Inc.Inventors: Guomin Jiang, Helen Chen, Haiji J. Yuan, Lixin Wang, WenYi Cao, Xuewen Lu, Qingyu Li, Yimin Ji
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Patent number: 11422429Abstract: A voltage-controlled optical wedge is formed by creating an adjustable voltage gradient along the length of a relatively large-sized LC cell. A pair of bias voltages (AC voltages) are applied at the opposing side terminations of the LC cell, their RMS values selected to create a continuous phase variation along the length of the cell, where a defined phase variation is associated with a specific beam steering angle. Adjustments in the applied bias voltages (specifically, changes in the RMS values of the bias voltages) result in changing the beam steering angle, providing for active, controllable beam steering as a function of time. The LC cell may be configured to provide either a linear or nonlinear continuous phase variation, as preferred for different beam steering applications.Type: GrantFiled: April 21, 2021Date of Patent: August 23, 2022Assignee: II-VI Delaware, Inc.Inventors: Qingyu Li, Jack R. Kelly, Guomin Jiang, Haiji J. Yuan, Yimin Ji, Helen Chen
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Patent number: 11016441Abstract: A two-step optimization process is utilized to define an optimal phase profile for a LCoS spatial light modulator. The two-step optimization process first utilizes a nonlinear constrained optimization (NCO) program to determine the specific parameters required to obtain an optimal phase profile (hologram), where the “optimal phase profile” is typically defined as that profile which achieves maximum diffraction efficiency for optical switching. Following this first step, phase scaling (and perhaps an adjustment in the number of pixels per period) is employed to slightly modify the values of the optimal phase profile to effectively suppress crosstalk peaks. If any orders still exhibit an unacceptable level of crosstalk, these orders are then subtracted from the phase profile to create the final design.Type: GrantFiled: February 18, 2019Date of Patent: May 25, 2021Assignee: II-VI Delaware, Inc.Inventors: Kun Gao, Jack R. Kelly, Helen Chen, Guomin Jiang, Xinran Wang, Lixin (Lawrence) Wang, Qingyu (Tom) Li, Haiji J. Yuan
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Publication number: 20200264558Abstract: A two-step optimization process is utilized to define an optimal phase profile for a LCoS spatial light modulator. The two-step optimization process first utilizes a nonlinear constrained optimization (NCO) program to determine the specific parameters required to obtain an optimal phase profile (hologram), where the “optimal phase profile” is typically defined as that profile which achieves maximum diffraction efficiency for optical switching. Following this first step, phase scaling (and perhaps an adjustment in the number of pixels per period) is employed to slightly modify the values of the optimal phase profile to effectively suppress crosstalk peaks. If any orders still exhibit an unacceptable level of crosstalk, these orders are then subtracted from the phase profile to create the final design.Type: ApplicationFiled: February 18, 2019Publication date: August 20, 2020Applicant: II-VI Delaware, Inc.Inventors: Kun Gao, Jack R. Kelly, Helen Chen, Guomin Jiang, Xinran Wang, Lixin (Lawrence) Wang, Qingyu (Tom) Li, Haiji J. Yuan
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Patent number: 9737643Abstract: Methods of reducing device drag on implantable articles are disclosed herein. The methods include coating the contact surfaces of implantable articles with bioabsorbable lubricating coatings.Type: GrantFiled: September 19, 2014Date of Patent: August 22, 2017Assignee: DEPUY MITEK, LLCInventors: Mark B. Roller, Kevin L. Cooper, Jo Hays, Jenny J. Yuan, Joseph H. Contiliano
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Patent number: 9258790Abstract: The present invention provides a dynamic power spectrum management method, a spectrum optimization system, and a client device, which can improve spectrum management. The method includes: calculating, from a tax factor containing user crosstalk information, a water-filling parameter corresponding to the case that total power of each user is below or equal to a threshold of total power of the user; calculating, from the water-filling parameter, power allocated to each user in each sub-carrier until convergence is attained for all users. Correspondingly, the present invention further provides a spectrum optimization system and a client device. In effect, the present invention can improve the spectrum management.Type: GrantFiled: November 27, 2007Date of Patent: February 9, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: W Yu, J Yuan, Liming Fang
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Publication number: 20150005770Abstract: Methods of reducing device drag on implantable articles are disclosed herein. The methods include coating the contact surfaces of implantable articles with bioabsorbable lubricating coatings.Type: ApplicationFiled: September 19, 2014Publication date: January 1, 2015Inventors: Mark B. Roller, Kevin L. Cooper, Jo Hays, Jenny J. Yuan, Joseph H. Contiliano
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Patent number: 8840613Abstract: Methods of reducing device drag on implantable articles are disclosed herein. The methods include coating the contact surfaces of implantable articles with bioabsorbable lubricating coatings.Type: GrantFiled: May 11, 2012Date of Patent: September 23, 2014Assignee: DePuy Mitek, LLCInventors: Mark B. Roller, Joseph H. Contiliano, Kevin L. Cooper, Jo Hays, Jenny J. Yuan
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Publication number: 20120226280Abstract: Methods of reducing device drag on implantable articles are disclosed herein. The methods include coating the contact surfaces of implantable articles with bioabsorbable lubricating coatings.Type: ApplicationFiled: May 11, 2012Publication date: September 6, 2012Applicant: DEPUY MITEK, INC.Inventors: Mark B. Roller, Joseph H. Contiliano, Kevin L. Cooper, Jo Hays, Jenny J. Yuan
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Patent number: 8197480Abstract: Bioabsorbable coatings for bioabsorbable implantable medical devices having dragging or engagement surfaces. The coatings on a surface of the devices reduce device drag.Type: GrantFiled: March 29, 2010Date of Patent: June 12, 2012Assignee: DePuy Mitek, Inc.Inventors: Mark B. Roller, Joseph Contiliano, Kevin L. Cooper, Jo Hays, Jenny J. Yuan
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Patent number: 7964573Abstract: The present invention relates to compositions related to a polynucleotide encoding a transient receptor potential channel gene. Also disclosed is the use of this polynucleotide, its homologs, fragments, variants and its resultant polypeptides in the diagnosis, prevention and treatment of disease, particularly idiopathic pulmonary arterial hypertension (IPAH). This invention also teaches the use of these polynucleotides and polypeptides as assays for drug discovery and therapies.Type: GrantFiled: January 17, 2006Date of Patent: June 21, 2011Assignee: The Regents of the University of CaliforniaInventors: Carmelle Remillard, Lewis J. Rubin, Ying Yu, Jason X.-J. Yuan
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Publication number: 20100185199Abstract: Bioabsorbable coatings for bioabsorbable implantable medical devices having dragging or engagement surfaces. The coatings on a surface of the devices reduce device drag.Type: ApplicationFiled: March 29, 2010Publication date: July 22, 2010Applicant: DEPUY MITEK, INC.Inventors: Mark B. Roller, Joseph H. Contiliano, Kevin L. Cooper, Jo Hays, Jenny J. Yuan
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Patent number: 7713272Abstract: Bioabsorbable coatings for bioabsorbable implantable medical devices having dragging or engagement surfaces. The coatings on a surface of the devices reduce device drag.Type: GrantFiled: December 20, 2001Date of Patent: May 11, 2010Assignee: Ethicon, Inc.Inventors: Mark B. Roller, Joseph H. Contiliano, Kevin L. Cooper, Jo Hays, Jenny J. Yuan
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Patent number: 7572298Abstract: An implantable medical device is disclosed. The device is fabricated at least in part from a biocompatible, biodegradable composition. The composition is composed of a biocompatible, biodegradable polymer and a biocompatible, biodegradable wax. The concentration of the wax at the surface of the device is greater than the concentration of the wax in the body of the implantable device. The increased concentration of wax at the device surface may be attained when the device is heated to a temperature greater than the melting point of the wax and the glass transition temperature of the polymer, but lower than melting point of the polymer.Type: GrantFiled: March 28, 2003Date of Patent: August 11, 2009Assignee: Ethicon, Inc.Inventors: Mark B. Roller, Yufu Li, Jenny J. Yuan