Patents by Inventor Liwei Wang
Liwei Wang 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: 10893960Abstract: Tubular casting processes, such as dip-coating, may be used to form substrates from polymeric solutions which may be used to fabricate implantable devices such as stents. The polymeric substrates may have multiple layers which retain the inherent properties of their starting materials and which are sufficiently ductile to prevent brittle fracture. Parameters such as the number of times the mandrel is immersed, the duration of time of each immersion within the solution, as well as the delay time between each immersion or the drying or curing time between dips and withdrawal rates of the mandrel from the solution may each be controlled to result in the desired mechanical characteristics. Additional post-processing may also be utilized to further increase strength of the substrate or to alter its shape.Type: GrantFiled: September 18, 2013Date of Patent: January 19, 2021Assignee: Razmodics LLCInventors: Kamal Ramzipoor, Alfred N. K. Chia, Liwei Wang
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Patent number: 10887759Abstract: An artificial intelligence system monitors and records usage of a set of mobile devices that have been “paired” or grouped together. The system, over time, accumulates a history of times and locations associated with events that occur with respect to the devices. From this history, the system develops a usage model for the devices. The system, if it detects current usage diverges significantly from an expected usage, performs responsive actions which may include: notifying a user, via a paired device, that the mobile device may be lost or misplaced; command the “lost” mobile device to enter a reduced power state, to prolong battery life; and/or command the “lost” device to emit audible and/or visible signals intended to facilitate locating the device. In some embodiments, the system predicts an imminent loss of the device before it becomes lost, based on current usage vs. expected usage embodied in the model.Type: GrantFiled: January 30, 2020Date of Patent: January 5, 2021Assignee: International Business Machines CorporationInventors: Liwei Wang, William Patrick Higgins, ChunHui Y. Higgins, Chul Sung, Bo Zhang
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Publication number: 20200385635Abstract: Disclosed are a liquid crystal composition and a liquid crystal display device. The liquid crystal composition comprises at least one compound of general formula I, at least one compound of general formula II, at least one compound of general formula III, and at least one compound of general formula IV. By compounding the four compounds, the composition can have advantages of a wide temperature range of nematic phase, a low viscosity and a low threshold voltage, and the liquid crystal display element can have a short response time and great power saving performance.Type: ApplicationFiled: May 21, 2020Publication date: December 10, 2020Inventors: Wenyang Ma, Wenming Han, Haibin Xu, Liwei Wang, Weigang Yan
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Publication number: 20200339884Abstract: A liquid crystal composition contains: at least one compound of general formula I and at least one polymerizable compound of general formula II. Such a liquid crystal composition has a suitable optical anisotropy, a suitable dielectric anisotropy, and a better pretilt angle consistency while maintaining a relatively high clearing point, and the drop mura is good. When the liquid crystal composition is applied to a PSA liquid crystal display, the liquid crystal composition has an excellent display effect.Type: ApplicationFiled: June 28, 2018Publication date: October 29, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenyang Ma, Liwei Wang, Haibin Xu, Wenming Han, Wenqi Zhang
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Publication number: 20200332195Abstract: A PSA-type liquid crystal composition includes a host liquid crystal A and a polymerizable component B, where the host liquid crystal A includes one or more liquid crystal compounds, and the polymerizable component B includes at least one compound selected from compounds of general formula I-1, general formula I-2 and general formula I-3. A liquid crystal display device includes the PSA-type liquid crystal composition above. The PSA-type liquid crystal composition has better intersolubility, cannot be crystallized at a low-temperature environment, can form a relatively stable pretilt angle after the polymerization of the polymerizable component, avoids the image sticking, and inhibits the occurrence of a display defect, such as Zara Particle, during the polymerization.Type: ApplicationFiled: March 27, 2020Publication date: October 22, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Wenyang Ma, Liwei Wang, Weigang Yan, Wenming Han, Haibin Xu
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Publication number: 20200176989Abstract: Disclosed are a method and apparatus for smoothing a link-line power of an electrothermal microgrid using a thermal storage heat pump cluster.Type: ApplicationFiled: November 26, 2019Publication date: June 4, 2020Applicants: State Grid Jiangsu Electric Power CO., LTD Nanjing Power Supply Company, SHANGHAI JIAO TONG UNIVERSITY, HOHAI UNIVERSITY, STATE GRID JIANGSU ELECTRIC POWER CO., LTDInventors: Yong ZHANG, Zhoujun MA, Ming ZHANG, Wentao HUANG, Shigang DAI, Yuping ZHENG, Nengling TAI, Chunning WANG, Liwei WANG, Honghua XU, Yiru CHEN, Di MA
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Patent number: 10646359Abstract: Tubular casting processes, such as dip-coating, may be used to form substrates from polymeric solutions which may be used to fabricate implantable devices such as stents. The polymeric substrates may have multiple layers which retain the inherent properties of their starting materials and which are sufficiently ductile to prevent brittle fracture. Parameters such as the number of times the mandrel is immersed, the duration of time of each immersion within the solution, as well as the delay time between each immersion or the drying or curing time between dips and withdrawal rates of the mandrel from the solution may each be controlled to result in the desired mechanical characteristics. Additional post-processing may also be utilized to further increase strength of the substrate or to alter its shape.Type: GrantFiled: May 21, 2012Date of Patent: May 12, 2020Assignee: Amaranth Medical Pte.Inventors: Kamal Ramzipoor, Alfred N. K. Chia, Liwei Wang
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Publication number: 20200048554Abstract: The present invention provides a liquid crystal composition, comprising, 14-30% of one or more compounds of general Formula I, 8-30% of one or more compounds of general Formula II, 13-58% of one or more compounds of general Formula III, and 20-65% of one or more compounds of general Formula IV, on the basis of the total weight of the liquid crystal composition. The liquid crystal composition of the present invention has a higher retardation, a higher transmittance, a larger optical anisotropy, a proper clearing point, a lower rotational viscosity and a good low-temperature storage stability, and is applicable to liquid crystal display devices to meet the rapid response required by a liquid crystal display, and ensure good display of the liquid crystal display in a harsh environment.Type: ApplicationFiled: October 27, 2017Publication date: February 13, 2020Applicant: Jiangsu Hecheng Display Technology Co., Ltd.Inventors: Di He, Wenming Han, Wenquan Ding, Haibin Xu, Heming Zhang, Junqiang Zhang, Yafei Yang, Yunyun Liu, Li Wang, Liwei Wang
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Publication number: 20190391386Abstract: Aspects of the embodiments are directed to coupling a permanent magnet (PM) with a microelectromechanical systems (MEMS) device. In embodiments, an adhesive, such as an epoxy or resin or other adhesive material, can be used to move the PM towards the MEMS device to magnetically couple the PM to the MEMS device. In embodiments, an adhesive that is configured to shrink up on curing can be applied (e.g., using a pick and place tool) to a location between the MEMS device and the PM. As a result of curing, the adhesive can pull the PM towards the MEMS device. In embodiments, an adhesive that is configured to expand as a result of curing can be applied to a location between the PM and a sidewall of the chassis. As a result of curing, the adhesive can push the PM towards the MEMS device. The adhesive can also secure the PM in place.Type: ApplicationFiled: December 27, 2016Publication date: December 26, 2019Applicant: Intel CorporationInventors: Kyle Yazzie, Anna M. Prakash, Suriyakala Ramalingam, Liwei Wang, Robert Starkston, Arnab Choudhury, Sandeep S. Iyer, Amanuel M. Abebaw, Nick Labanok
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Patent number: 10475715Abstract: Some embodiments relate to an electronic package. The electronic package includes a first die and a second die stacked onto the first die. A first encapsulant is positioned between the first die and the second die. The first encapsulant includes a first material that covers a first volume between the first die and the second die. A second encapsulant is positioned between the first die and the second die. The second encapsulant includes a second material that covers a second volume between the first die and the second die. The first material has a higher thermal conductivity than the second material, and the second material more effectively promotes electrical connections between the first die and the second die as compared to the first material.Type: GrantFiled: June 17, 2015Date of Patent: November 12, 2019Assignee: Intel CorporationInventors: Venmathy McMahan, Sivakumar Nagarajan, Elah Bozorg-Grayeli, Amrita Mallik, Kuang-Han Chu, Liwei Wang, Nisha Ananthakrishnan, Craig J. Weinman, Amram Eitan
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Patent number: 10458823Abstract: The present disclosure relates to a system and method for health monitoring and early warning for an electronic device. A sensor is used to monitor a physical parameter of a circuit board of a host electronic system of the electronic device to acquire sensor data, and transmit the acquired sensor data to an embedded control device. The sensor data includes at least one of current data, vibration data, temperature data and voltage data. The embedded control device is used to extract a feature from the sensor data to acquire feature data, and perform real-time analysis and prediction based on the feature data to obtain and display a prediction result. In this way, the user can be provided with real-time health monitoring and real-time prediction information for the host electronic system circuit board.Type: GrantFiled: November 29, 2016Date of Patent: October 29, 2019Assignee: Fifth Electronics Research Institute of Ministry of Industry and Information TechnologyInventors: Yiqiang Chen, Yun Huang, Dengyun Lei, Yudong Lu, Yunfei En, Chunhua He, Liwei Wang
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Patent number: 10315200Abstract: An apparatus for storing magnetic materials may include a tray. The apparatus for storing magnetic materials may include a sheet. The apparatus for storing magnetic materials may include a first set of height modulators. The apparatus for storing magnetic materials may include a diamagnetic material. The tray may include one or more pockets. The one or more pockets may be configured to receive a magnetic device. The sheet may be configured to couple with the tray. The sheet may be located adjacent to a bottom of the one or more pockets. The sheet may include the diamagnetic material. The sheet may include the first set of height modulators. The first set of height modulators may protrude from a surface of the sheet. The first set of height modulators may be configured to extend into the one or more pockets at a first distance.Type: GrantFiled: June 29, 2017Date of Patent: June 11, 2019Assignee: Intel CorporationInventors: Amanuel M Abebaw, Mark Saltas, Anna M. Prakash, Liwei Wang
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Publication number: 20190154475Abstract: The present disclosure relates to a system and method for health monitoring and early warning for an electronic device. A sensor is used to monitor a physical parameter of a circuit board of a host electronic system of the electronic device to acquire sensor data, and transmit the acquired sensor data to an embedded control device. The sensor data includes at least one of current data, vibration data, temperature data and voltage data. The embedded control device is used to extract a feature from the sensor data to acquire feature data, and perform real-time analysis and prediction based on the feature data to obtain and display a prediction result. In this way, the user can be provided with real-time health monitoring and real-time prediction information for the host electronic system circuit board.Type: ApplicationFiled: November 29, 2016Publication date: May 23, 2019Applicant: Fifth Electronics Research Institute of Ministry of Industry and Information TechnologyInventors: Yiqiang Chen, Yun Huang, Dengyun Lei, Yudong Lu, Yunfei En, Chunhua He, Liwei Wang
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Patent number: 10256745Abstract: A multilevel converter converting between AC and DC includes a phase leg having a first and a second phase arm, the first phase arm being connected between a first pole having a first potential and a first AC terminal and the second phase arm being connected between the first AC terminal and a second potential, where the phase arms include half-bridge and full-bridge cells, where each cell includes at least one energy storage element for providing the voltage contribution and cell switching units with cell switches and anti-parallel diodes for controlling the voltage contribution, where the full-bridge cells include a bypass switch controllable to bypass the corresponding energy storage element, and when a phase-to-ground fault occurs the cell switches are blocked and the bypass switches activated with a delay in relation to the blocking.Type: GrantFiled: November 25, 2014Date of Patent: April 9, 2019Assignee: ABB SCHWEIZ AGInventors: Alireza Nami, Jiaqi Liang, Frans Dijkhuizen, Liwei Wang
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Publication number: 20190001342Abstract: An apparatus for storing magnetic materials may include a tray. The apparatus for storing magnetic materials may include a sheet. The apparatus for storing magnetic materials may include a first set of height modulators. The apparatus for storing magnetic materials may include a diamagnetic material. The tray may include one or more pockets. The one or more pockets may be configured to receive a magnetic device. The sheet may be configured to couple with the tray. The sheet may be located adjacent to a bottom of the one or more pockets. The sheet may include the diamagnetic material. The sheet may include the first set of height modulators. The first set of height modulators may protrude from a surface of the sheet. The first set of height modulators may be configured to extend into the one or more pockets at a first distance.Type: ApplicationFiled: June 29, 2017Publication date: January 3, 2019Inventors: Amanuel M. Abebaw, Mark Saltas, Anna M. Prakash, Liwei Wang
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Patent number: 10125013Abstract: Apparatuses, systems, and methods associated with placement of magnets within a microelectromechanical system device are disclosed herein. In embodiments, a method of affixing at least one magnet in a microelectromechanical system, may include affixing an electromagnetic actuator to a base structure of the microelectromechanical system, the affixing including affixing the electromagnetic actuator within a recess formed in the base structure. The method may further include placing a magnet within the recess, wherein the recess includes at least a portion of a spring, the spring affixed to the base structure and extending into the recess, the placing including placing the magnet on a side of the electromagnetic actuator, between the spring and the side of the electromagnetic actuator, the spring pressing the magnet against the side of the electromagnetic actuator and maintaining a position of the magnet in response to the placing the magnet within the recess.Type: GrantFiled: November 17, 2016Date of Patent: November 13, 2018Assignee: Intel CorporationInventors: Robert Starkston, Amanuel M. Abebaw, Liwei Wang, Mark Saltas, Sandeep S. Iyer, Nick Labanok
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Publication number: 20180212533Abstract: A multilevel converter converting between AC and DC includes a phase leg having a first and a second phase arm, the first phase arm being connected between a first pole having a first potential and a first AC terminal and the second phase arm being connected between the first AC terminal and a second potential, where the phase arms include half-bridge and full-bridge cells, where each cell includes at least one energy storage element for providing the voltage contribution and cell switching units with cell switches and anti-parallel diodes for controlling the voltage contribution, where the full-bridge cells include a bypass switch controllable to bypass the corresponding energy storage element, and when a phase-to-ground fault occurs the cell switches are blocked and the bypass switches activated with a delay in relation to the blocking.Type: ApplicationFiled: November 25, 2014Publication date: July 26, 2018Applicant: ABB SCHWEIZ AGInventors: Alireza NAMI, Jiaqi LIANG, Frans DIJKHUIZEN, Liwei WANG
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Publication number: 20180134547Abstract: Apparatuses, systems, and methods associated with placement of magnets within a microelectromechanical system device are disclosed herein. In embodiments, a method of affixing at least one magnet in a microelectromechanical system, may include affixing an electromagnetic actuator to a base structure of the microelectromechanical system, the affixing including affixing the electromagnetic actuator within a recess formed in the base structure. The method may further include placing a magnet within the recess, wherein the recess includes at least a portion of a spring, the spring affixed to the base structure and extending into the recess, the placing including placing the magnet on a side of the electromagnetic actuator, between the spring and the side of the electromagnetic actuator, the spring pressing the magnet against the side of the electromagnetic actuator and maintaining a position of the magnet in response to the placing the magnet within the recess.Type: ApplicationFiled: November 17, 2016Publication date: May 17, 2018Inventors: Robert Starkston, Amanuel M. Abebaw, Liwei Wang, Mark Saltas, Sandeep S. Iyer, Nick Labanok
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Patent number: 9908143Abstract: Tubular casting processes, such as dip-coating, may be used to form substrates from polymeric solutions which may be used to fabricate implantable devices such as stents. The polymeric substrates may have multiple layers which retain the inherent properties of their starting materials and which are sufficiently ductile to prevent brittle fracture. Parameters such as the number of times the mandrel is immersed, the duration of time of each immersion within the solution, as well as the delay time between each immersion or the drying or curing time between dips and withdrawal rates of the mandrel from the solution may each be controlled to result in the desired mechanical characteristics. Additional post-processing may also be utilized to further increase strength of the substrate or to alter its shape.Type: GrantFiled: May 21, 2012Date of Patent: March 6, 2018Assignee: Amaranth Medical Pte.Inventors: Kamal Ramzipoor, Alfred N. K. Chia, Liwei Wang, Chang Y. Lee
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Patent number: 9716425Abstract: A multilevel converter converting between AC and DC includes a phase arm with a number of cells between a DC pole and an AC terminal, the cells include at least one hybrid full bridge cell including a first cell connection terminal for coupling to the DC pole, a second cell connection terminal for coupling to the AC terminal, an energy storage element having a positive and a negative end, a first group of series connected semiconducting units in parallel with the energy storage element, where a junction between these forms one cell connection terminal, and a second group of series connected semiconducting units in parallel with the energy storage element and including a third semiconducting unit and a fourth semiconducting unit consisting of a number of unidirectional conducting elements including at least one unidirectional conducting element, where a junction between these forms a further cell connection terminal.Type: GrantFiled: January 21, 2013Date of Patent: July 25, 2017Assignee: ABB SCHWEIZ AGInventors: Alireza Nami, Liwei Wang