Patents by Inventor Qingchun Zhang
Qingchun Zhang 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: 12127160Abstract: A communication method and apparatus are provided. The method may be applied to a terminal and a network device. In the method, the network device first sends first indication information before sending a paging message, where the first indication information is used to indicate whether at least two terminals in an RRC_IDLE state or an RRC_INACTIVE state need to receive the paging message. In this way, after each of the at least two terminals receives the first indication information, the terminal may determine, based on the first indication information, whether the terminal needs to receive the paging message. If determining that the terminal needs to receive the paging message, the terminal may detect and receive the paging message on a corresponding time-frequency resource after the network device sends the paging message.Type: GrantFiled: June 18, 2021Date of Patent: October 22, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Qingchun He, Xiangdong Zhang, Junren Chang
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Patent number: 12080871Abstract: A negative electrode particle and a preparing method thereof, a negative electrode sheet, and an energy-storage apparatus are provided. The negative electrode particle provided in the disclosure defines a closed pore located inside the negative electrode particle and an open pore located on a surface of the negative electrode particle. A ratio of a pore volume C1 of the closed pore to a pore volume C2 of the open pore satisfies: 6?C1/C2?11, and the pore volume C1 of the closed pore satisfies: 0.03 cm3/g?C1?0.12 cm3/g.Type: GrantFiled: March 15, 2024Date of Patent: September 3, 2024Assignee: Xiamen Hithium Energy Storage Technology Co., Ltd.Inventors: Qingchun Chen, Shiwen Wang, Yingxin Lin, Kaida Zhu, Min Zhang
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Publication number: 20240268917Abstract: A guiding and positioning device for assisting in computed tomography-guided needle biopsy (CT-GNB) includes a control mechanism and an actuating mechanism, where the actuating mechanism includes a base and a support frame; one of the two head ends of the support frame is provided with a locking mechanism; a positioning apparatus includes a first guide rail in an arc shape, and the first guide rail is slidably provided with a guiding apparatus configured to guide different puncture angles in a same plane; the guiding apparatus includes a deflection drive mechanism slidable along the first guide rail, and a first translation mechanism and a second translation mechanism that are arranged perpendicular to each other; and the second translation mechanism is slidably provided with a guiding mechanism configured to guide a puncture through a visible laser space.Type: ApplicationFiled: December 6, 2021Publication date: August 15, 2024Applicant: READITEC MEDICAL SYSTEMS CO., LTD.Inventors: Feihuan QU, Feng SHOU, Fujun ZHANG, Chuang HE, Shifu YE, Lei MA, Taojin HUANG, Qingchun ZHOU, Zhisheng WU, Guangyue SHI, Xi JIA
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Publication number: 20240257148Abstract: The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof-of-existence data, certify the proof-of-existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockchaType: ApplicationFiled: August 19, 2022Publication date: August 1, 2024Applicants: STATE GRID BLOCKCHAIN TECHNOLOGY (BEIJING) CO., LTD., BEIJING POWER EXCHANGE CENTER CO., LTD., STATE GRID DIGITAL TECHNOLOGY HOLDING CO., LTD., STATE GRID CORPORATION OF CHINA, JIANGXI POWER EXCHANGE CENTER CO., LTD., LIAONING POWER EXCHANGE CENTER CO., LTD., EAST INNER MONGOLIA POWER EXCHANGE CENTER COMPANY LTD.Inventors: Kai Xie, Dong Wang, Xian Zhang, Hejian Wang, Da Li, Wen Xie, Shijie Ji, Yonghui Liu, Nan Zhang, Jiaxing Xuan, Tian Sun, Desheng Bai, Shengnan Zhang, Xin Li, Gang Chen, Haiqing Jia, Zhe Zhang, Hexiao Liang, Qingchun Li, Kun Fan, Shengzhi Lu, Chao Yang, Liang Zhao, Jingli Feng, Fan Jia, Tong Xing, Lihua Zhao, Guomin Li, Zhan Su
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Patent number: 11791378Abstract: Semiconductor devices include a silicon carbide drift region having an upper portion and a lower portion. A first contact is on the upper portion of the drift region and a second contact is on the lower portion of the drift region. The drift region includes a superjunction structure that includes a p-n junction that is formed at an angle of between 10° and 30° from a plane that is normal to a top surface of the drift region. The p-n junction extends within +/?1.5° of a crystallographic axis of the silicon carbide material forming the drift region.Type: GrantFiled: July 9, 2021Date of Patent: October 17, 2023Assignee: Wolfspeed, Inc.Inventors: Edward Robert Van Brunt, Alexander V. Suvorov, Vipindas Pala, Daniel J. Lichtenwalner, Qingchun Zhang
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Publication number: 20230097773Abstract: A cryoballoon control device (2), catheter system and temperature display method are disclosed. The control device (2) acquires a plurality of balloon circumference temperature values obtained by circumference temperature sensors (4) circumferentially disposed on a cryoballoon (1) and a balloon center temperature value obtained from a center temperature sensor (5) disposed at a center of the cryoballoon (1) and, automatically adjusts a flow rate of a coolant introduced into the cryoballoon (1) based on a comparison between a preset balloon temperature value and a comparative temperature value, to enable a temperature adjustment to the cryoballoon (1), wherein the comparative temperature value is the balloon center temperature value, any one of the balloon circumference temperature values, or a computational temperature value derived by a predefined algorithm from the plurality of balloon circumference temperature values.Type: ApplicationFiled: February 18, 2021Publication date: March 30, 2023Inventors: Liuping SHEN, Degui PANG, Yiyong SUN, Jinfeng LIU, Qingchun ZHANG
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Publication number: 20230035363Abstract: Provided herein are in vitro methods of assaying an in vivo level of high molecular weight (HMW) species of a therapeutic protein. In exemplary embodiments, the method comprises (a) incubating a mixture comprising (i) a sample comprising the therapeutic protein and (ii) serum, or a depleted fraction thereof; and (b) assaying the level of HMW species of the therapeutic protein present in the mixture at one or more time points after step (a). Also methods of determining the in vivo reversibility of HMW species of a therapeutic protein are provided herein. In exemplary instances, the method comprises (A) assaying the in vivo level of high molecular weight (HMW) species of a therapeutic protein according to a presently disclosed in vitro method, and (B) comparing the level(s) of HMW species present in the mixture to the level of HMW species present in the sample prior to the incubating step.Type: ApplicationFiled: March 4, 2020Publication date: February 2, 2023Inventors: Dong XIANG, Qingchun ZHANG, Marisa JOUBERT, Trent MUNRO, Ronandro DE GUZMAN
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Publication number: 20220265339Abstract: An ablation system and a nerve detection device thereof are provided. The nerve detection device includes a power supply module, a computation and control module, an energy generation module and a blood pressure monitoring module. The energy generation module connects to a detecting catheter and to detect a given site in an artery by outputting first energy to the detecting catheter. The blood pressure monitoring module connects to a blood pressure sensor monitoring a patients blood pressure prior to and during the detecting of the given site by the energy generation module with the first energy and to output the blood pressure monitoring result, and further transmitting the blood pressure monitoring result to the computation and control module. The computation and control module determines, based on the blood pressure monitoring result, whether there is an ablation target at the given site.Type: ApplicationFiled: September 29, 2020Publication date: August 25, 2022Inventors: Yuehui YIN, Yiyong SUN, Liuping SHEN, Yahui PENG, Zhili YU, Qingchun ZHANG
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Patent number: 11417738Abstract: Semiconductor structures and fabrication methods thereof are provided. The method includes: providing a substrate, the substate having a first opening; forming a first epitaxial layer in the first opening, the first epitaxial layer having a second opening; forming a stop layer on sidewall surfaces and a bottom surface of the second opening; forming a second epitaxial layer on a top surface of the stop layer; after forming the second epitaxial layer, forming a dielectric layer on the substrate, the dielectric layer having a third opening exposing a surface of the second epitaxial layer; forming a fourth opening in the second epitaxial layer by etching the second epitaxial layer exposed by the third opening until the stop layer is exposed; and forming a contact layer on sidewall surfaces and a bottom surface of the fourth opening by performing a semiconductor metallization process.Type: GrantFiled: August 27, 2020Date of Patent: August 16, 2022Assignees: Semiconductor Manufacturing International (Shanghai) Corporation, Semiconductor Manufacturing International (Beijing) CorporationInventor: Qingchun Zhang
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Publication number: 20220177580Abstract: Provided herein are methods of modulating Fc gamma Receptor (Fc?R)-mediated cytotoxicity of an antibody composition. In exemplary embodiments, the method comprises (1) increasing or decreasing the amount of terminal ?-galactose at the N-297 glycosylation site of panitumumab, or increasing or decreasing the amount of panitumumab molecules that comprise G1, G1a, G1b and/or G2 galactosylated glycan at the N-297 site, (2) increasing or decreasing the amount of panitumumab molecules that comprise fucosylated glycan at the N-297 site, or increasing or decreasing the amount of panitumumab molecules that comprise afucosylated glycan at the N-297 site, and (3) increasing or decreasing the amount of panitumumab molecules that comprise a high-mannose glycan at the N-297 site.Type: ApplicationFiled: May 28, 2020Publication date: June 9, 2022Applicant: AMGEN INC.Inventors: SCOTT THOMAS KUHNS, RUPA PADAKI, QINGCHUN ZHANG, WILLIAM S BRETZLAFF
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Publication number: 20220033511Abstract: The present disclosure provides a method of controlling the Antibody Dependent Cellular Cytotoxicity (ADCC) activity of a glycosylated and afucosylated IgG1 antibody composition. In exemplary embodiments, the method includes (1) determining the ADCC activity of a glycosylated and afucosylated IgG1 antibody composition; and (2) increasing or decreasing the ADCC activity of the IgG1 antibody composition by increasing or decreasing the amount of terminal ?-galactose in the afucosylated glycan species at the consensus glycosylation site. Related methods of matching ADCC activity of a reference glycosylated and afucosylated IgG1 antibody composition and methods of engineering a specific target ADCC activity of a glycosylated and afucosylated IgG1 antibody composition are further provided herein.Type: ApplicationFiled: September 10, 2019Publication date: February 3, 2022Inventors: Alla POLOZOVA, Qingchun ZHANG, Scott KUHNS, Dong XIANG
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Publication number: 20210378577Abstract: Disclosed relates to a method and an apparatus for analyzing an ECG signal, an electrophysiological signal recorder, a three-dimensional mapping system, and a computer device. The method includes: acquiring (S202) N first intracardiac electrical signals in a region of interest or at a reference point/in a reference region; generating (S204) a first comparison signal spectrogram according to the N first intracardiac waveforms; acquiring (S206) M second intracardiac electrical signals at the point of interest to acquire M second intracardiac waveforms; generating (S208) a second comparison signal spectrogram according to the M second intracardiac waveforms; performing (S210) a comparative analysis on the first comparison signal spectrogram and the second comparison signal spectrogram and generating a comparative analysis result; and outputting (S212) prompt information indicating whether the point of interest is a focal point according to the comparative analysis result.Type: ApplicationFiled: October 25, 2019Publication date: December 9, 2021Inventors: Yiyong SUN, Hao HUANG, Xinyi WANG, Qingchun ZHANG, Xianfeng CAO, Liuping SHEN
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Publication number: 20210367029Abstract: Semiconductor devices include a silicon carbide drift region having an upper portion and a lower portion. A first contact is on the upper portion of the drift region and a second contact is on the lower portion of the drift region. The drift region includes a superjunction structure that includes a p-n junction that is formed at an angle of between 10° and 30° from a plane that is normal to a top surface of the drift region. The p-n junction extends within +/?1.5° of a crystallographic axis of the silicon carbide material forming the drift region.Type: ApplicationFiled: July 9, 2021Publication date: November 25, 2021Inventors: Edward Robert Van Brunt, Alexander V. Suvorov, Vipindas Pala, Daniel J. Lichtenwalner, Qingchun Zhang
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Patent number: 11184001Abstract: Power switching devices include a semiconductor layer structure that has an active region and an inactive region. The active region includes a plurality of unit cells and the inactive region includes a field insulating layer on the semiconductor layer structure and a gate bond pad on the field insulating layer opposite the semiconductor layer structure. A gate insulating pattern is provided on the semiconductor layer structure between the active region and the field insulating layer, and at least one source/drain contact is provided on the semiconductor layer structure between the gate insulating pattern and the field insulating layer.Type: GrantFiled: March 6, 2020Date of Patent: November 23, 2021Assignee: Cree, Inc.Inventors: Qingchun Zhang, Adam Barkley, Sei-Hyung Ryu, Brett Hull
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Publication number: 20210338135Abstract: A determination device (100) for determining the origin of an arrhythmia and a mapping system (200) are disclosed. In the determination device (100), an analysis unit (120) is configured to process ECG data extracted over a predetermined period of time by a data extracting unit (110) and input the processed data into a determination model (131), where a calculation is performed thereon to produce origin information about the origin. An output unit (140) is configured to output the origin information, and a model configuration unit (130) is configured to configure the determination model (131). The determination device (100) allows identifying a cardiac site suitable for focused mapping, thereby dispensing with the need to map the whole heart and shortening the time required for mapping. The mapping system (200) includes the determination device (100).Type: ApplicationFiled: June 28, 2019Publication date: November 4, 2021Inventors: Yunlong XIA, Qingchun ZHANG, Liuping SHEN, Lu WANG, Yiyong SUN
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Patent number: 11164967Abstract: A power MOSFET includes a silicon carbide drift region having a first conductivity type, first and second well regions located in upper portions of the silicon carbide drift region that are doped with second conductivity dopants, and a channel region in a side portion of the first well region, an upper portion of the channel region having the first conductivity type, wherein a depth of the first well region is at least 1.5 microns and the depth of the first well region exceeds a distance between the first and second well regions.Type: GrantFiled: August 12, 2019Date of Patent: November 2, 2021Assignee: Cree, Inc.Inventors: Qingchun Zhang, Alexander V. Suvorov
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Patent number: 11075264Abstract: Semiconductor devices include a silicon carbide drift region having an upper portion and a lower portion. A first contact is on the upper portion of the drift region and a second contact is on the lower portion of the drift region. The drift region includes a superjunction structure that includes a p-n junction that is formed at an angle of between 10° and 30° from a plane that is normal to a top surface of the drift region. The p-n junction extends within +/?1.5° of a crystallographic axis of the silicon carbide material forming the drift region.Type: GrantFiled: May 31, 2016Date of Patent: July 27, 2021Assignee: Cree, Inc.Inventors: Edward Robert Van Brunt, Alexander V. Suvorov, Vipindas Pala, Daniel J. Lichtenwalner, Qingchun Zhang
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Patent number: 11024731Abstract: A power module is disclosed that includes a housing with an interior chamber wherein multiple switch modules are mounted within the interior chamber. The switch modules comprise multiple transistors and diodes that are interconnected to facilitate switching power to a load. In one embodiment, at least one of the switch modules supports a current density of at least 10 amperes per cm2.Type: GrantFiled: October 26, 2018Date of Patent: June 1, 2021Assignee: Cree, Inc.Inventors: Jason Patrick Henning, Qingchun Zhang, Sei-Hyung Ryu, Anant Kumar Agarwal, John Williams Palmour, Scott Allen
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Publication number: 20210155710Abstract: Provided herein are methods of modulating Antibody Dependent Cellular Phagocytosis (ADCP) activity of an antibody composition. In exemplary embodiments, the method comprises modulating the amount of (a) galactosylated glycans of the antibody, (b) afucosylated glycans of the antibody, (c) high mannose glycans of the antibody, or (d) a combination thereof, to modulate ADCP activity of the antibody, as further described herein.Type: ApplicationFiled: June 5, 2019Publication date: May 27, 2021Inventors: Scott KUHNS, Junyan SHU, Qingchun ZHANG
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Patent number: RE49167Abstract: A Schottky diode is disclosed that includes a silicon carbide substrate, a silicon carbide drift layer, a Schottky contact, and a passivation structure. The silicon carbide drift layer provides an active region and an edge termination region about the active region. The Schottky contact has sides and a top extending between the two sides and includes a Schottky layer over the active region and an anode contact over the Schottky layer. The passivation structure covers the edge termination region, the sides of the Schottky contact, and at least a portion of the top of the Schottky contact. The passivation structure includes a first silicon nitride layer, a silicon dioxide layer over the first silicon nitride layer, and a second silicon nitride layer over the silicon dioxide layer.Type: GrantFiled: November 12, 2019Date of Patent: August 9, 2022Assignee: WOLFSPEED, INC.Inventors: Van Mieczkowski, Jonathan Young, Qingchun Zhang, John Williams Palmour