Patents by Inventor Zhen Xu

Zhen Xu 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).

  • Publication number: 20220251594
    Abstract: Glutamine synthetase mutant having glufosinate ammonium resistance, application thereof and a cultivation method therefor. Comparing with the reference sequence, the amino acid sequence of the glutamine synthetase mutant has one or a combination of the following mutations: (1) the amino acid of the glutamine synthetase mutant corresponding to amino acid site 59 of the reference sequence is mutated to X1, wherein X1=A, C, D, E, F, G, H, I, K, P, T, V or Y; (2) the amino acid of the glutamine synthetase mutant corresponding to amino acid site 296 of the reference sequence is mutated to X2, wherein X2=A, D, E, G, I, K, M, P, Q, R, S, T, or V.
    Type: Application
    Filed: June 30, 2020
    Publication date: August 11, 2022
    Inventors: Longqun Deng, Zhen Zhang, Yuangen Lu, Yingzhao Fu, Yi Tang, Ruhua Xiang, Xiaorong Feng, Nanfei Xu
  • Publication number: 20220251023
    Abstract: A method for preparing amantadine includes chlorinating adamantane with chlorine gas in a solvent in the presence of a Lewis acid catalyst to obtain a reaction liquid, and then removing the solvent and residues containing the catalyst in the reaction liquid, to obtain a chlorinated product. The chlorinated product is mixed with urea to a mixture, and the mixture is subjected to an amination reaction, to obtain amantadine. The results of examples show that the purity of the prepared amantadine could reach 99.5% or more.
    Type: Application
    Filed: May 19, 2020
    Publication date: August 11, 2022
    Inventors: Lanhua Li, Yuenan Qiu, Donghong Xu, Zhiyuan Liu, Huaqiang Wu, Zhufeng Zhou, Lihong Chen, Zhen Lin
  • Publication number: 20220256560
    Abstract: The present application relates to a data transmission method, a system, a computer device, and a storage medium. Since a target extension unit is an extension unit connected to a service distal end unit of a matching user equipment set, when data is transmitted between a host unit and a user equipment, data only needs to be transmitted to a service distal end unit group connected to the target extension unit by means of the target extension unit, and data transmission is not needed to be performed with all distal end unit groups, so that a fronthaul bandwidth between the host unit and the extension unit/distal end unit is greatly decreased, thereby reducing design costs of a baseband of the host unit. In addition, the host unit pre-matches the user equipment which can share the same time frequency resource. Therefore, the same time frequency resource only needs to be allocated to the matching user equipment set, which greatly improves the utilization rate of an air interface resource.
    Type: Application
    Filed: December 9, 2019
    Publication date: August 11, 2022
    Applicant: COMBA NETWORK SYSTEMS COMPANY LIMITED
    Inventors: Zhen LIU, Huijun XU, Yang OU, Bo YANG, Baoguo DING, Pengfei HUANG
  • Patent number: 11411652
    Abstract: This application provides an example light source switching apparatus. The apparatus includes first and second multi-mode interference (MMI) couplers, and a phase modulator. The first MMI coupler includes four ports, where first and second ports are located on one side, and third and fourth ports are located on the other side. The second MMI coupler includes three ports, where fifth and sixth ports are located on one side, and a seventh port is located on the other side. The first and the second ports connect to the fifth and the sixth ports, respectively, to form two connections. The phase modulator is disposed on one of the two connections, and the seventh port connects to an optical modulator. Both the third and the fourth ports connect to a light source emitting continuous light, and the phase modulator selects one of the two light sources for output from the seventh port.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: August 9, 2022
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Benbo Xu, Jialin Zhao, Zhen Dong
  • Patent number: 11412116
    Abstract: A camera module includes an optical assembly, a filter and a molded photosensitive assembly mounted under the optical assembly and the filter, wherein the molded photosensitive assembly comprises a main body, a plurality of electronic components, a photosensitive chip, and a circuit board electrically connected with the electronic components and the photosensitive chip, wherein the electronic components, the photosensitive chip and the circuit board are positionally fixed with each other by the main body, wherein the photosensitive chip is fixed and surrounded by the bottom of the main body to keep distance with the filter, wherein the main body comprises a container body supporting the optical assembly thereon and a lower body supporting the filter thereon, wherein the lower body is extended from the inner side of the container body.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: August 9, 2022
    Assignee: NINGBO SUNNY OPOTECH CO., LTD.
    Inventors: Zhen Huang, Qimin Mei, Bojie Zhao, Zhewen Mei, Li Liu, Jiawei Chen, Zongchun Yang, Chenxiang Xu
  • Patent number: 11412117
    Abstract: A camera module includes an optical assembly, a filter and a molded photosensitive assembly mounted under the optical assembly and the filter, wherein the molded photosensitive assembly comprises a main body, a plurality of electronic components, a photosensitive chip, and a circuit board electrically connected with the electronic components and the photosensitive chip, wherein the electronic components, the photosensitive chip and the circuit board are positionally fixed with each other by the main body, wherein the photosensitive chip is fixed and surrounded by the bottom of the main body to keep distance with the filter, wherein the main body comprises a container body supporting the optical assembly thereon and a lower body supporting the filter thereon, wherein the lower body is extended from the inner side of the container body.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: August 9, 2022
    Assignee: NINGBO SUNNY OPOTECH CO., LTD.
    Inventors: Zhen Huang, Qimin Mei, Bojie Zhao, Zhewen Mei, Li Liu, Jiawei Chen, Zongchun Yang, Chenxiang Xu
  • Patent number: 11409130
    Abstract: A head-mounted wearable device (HMWD) with a form factor of eyeglasses incorporates hinges between a front frame and temples. The hinges provide a fully enclosed passage for a flexible printed circuit (FPC). The FPC allows electrical connectivity between devices in the front frame and in the temple. The hinge includes a cam device that provides a biasing force that allows the temples to remain in one of four configurations: closed, transit, neutral, and maximum neutral. When in the transit configuration the biasing force provided by the cam device tends to move the temples towards the closed configuration. When in the maximum neutral configuration the biasing force provided by the cam device tends to move the temples towards the neutral configuration. During use, this biasing of the temples provides a gentle clamping force that assists in maintaining the HMWD on the user's head.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: August 9, 2022
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Chun Sik Jeong, Jung Sik Yang, Niranjan Madan Mohan Bhatia, Yuna Hu, Jianchun Dong, Zhen Xu, Han Zhang
  • Patent number: 11404493
    Abstract: The present disclosure provides an optical sensor, a manufacturing method thereof, a display device, and a display apparatus, and relates to the display technology. The optical sensor includes a thin film transistor and a PIN diode on a surface of a drain of the thin film transistor. A material of a P region of the PIN diode, a material of an I region of the PIN diode, and a material of an N region of the PIN diode are oxides. Since the PIN diode is made of oxides rather than amorphous silicon, hydrogen is not introduced. Therefore, the performance of the thin film transistor will not be affected, thereby achieving the improvement of the performance of the display device and the display effect.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: August 2, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Guoying Wang, Zhen Song, Yicheng Lin, Ling Wang, Cuili Gai, Pan Xu
  • Publication number: 20220219019
    Abstract: A histotripsy therapy system configured for the treatment of brain tissue is provided, which may include any number of features. In one embodiment, the system includes an ultrasound therapy transducer, a drainage catheter, and a plurality of piezoelectric sensors disposed in the drainage catheter. The ultrasound therapy is configured to transmit ultrasound pulses into the brain to generate cavitation that liquefies a target tissue in the brain. The drainage catheter is configured to detect the ultrasound pulses. An aberration correction algorithm can be executed by the system based on the ultrasound pulses measured by the drainage catheter to automatically correct for an aberration effect caused by the ultrasound pulses passing through a skullcap of the patient.
    Type: Application
    Filed: August 20, 2021
    Publication date: July 14, 2022
    Inventors: Zhen XU, Jonathan SUKOVICH, Aditya S. PANDEY, Charles A. CAIN, Hitinder S. GURM
  • Patent number: 11383294
    Abstract: The application belongs to the technical field of a casting mold and provides a side mold and a low-pressure hub casting mold. Channels of a cooling loop are processed in a back cavity of a side mold frame, a distance between the channels along a solidification direction of a casting gradually increases, and a cooling medium flows along the cooling loop, the ability of taking away heat changes from strong to weak, and a larger temperature gradient of the side mold may be formed by superposition with a temperature gradient formed by the thickness of the side mold.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: July 12, 2022
    Assignee: CITIC DICASTAL CO., LTD.
    Inventors: Zhen Li, Zuo Xu, Hanqi Wu, Zhihua Zhu, Guoyuan Xiong
  • Publication number: 20220213951
    Abstract: A hydro-mechanical hybrid transmission device with an energy management mechanism includes an input member, a mechanical transmission mechanism, an energy management mechanism, a power output mechanism, an output member, a convergence mechanism, a start mechanism, a hydraulic transmission mechanism, a clutch assembly, and a brake assembly. The clutch assembly connects the input member to the mechanical transmission mechanism, the power output mechanism, and the hydraulic transmission mechanism, and connects the energy management mechanism to the mechanical transmission mechanism and the power output mechanism. The clutch assembly and the brake assembly provide a continuous transmission ratio between the input member and the output member and/or the power output mechanism, between the energy management mechanism and the output member and/or the power output mechanism, and between the energy management mechanism together with the input member and the output member and/or the power output mechanism.
    Type: Application
    Filed: August 4, 2020
    Publication date: July 7, 2022
    Applicant: JIANGSU UNIVERSITY
    Inventors: Yingfeng CAI, Zhen ZHU, Long CHEN, Changgao XIA, Juncheng WANG, Xiang TIAN, Jiangyi HAN, Jianguo ZHU, LongHui LAI, Xing XU
  • Publication number: 20220213195
    Abstract: Provided are an anti-PDL1 antibody and an antigen-binding fragment thereof, and further provided are a bifunctional fusion protein against PDL1 and TGF? and a preparation method thereof and the use thereof. The antibody or antigen-binding fragment or the bifunctional fusion protein has one or more of the following advantages: an enhanced TGF?1 binding activity, an enhanced affinity to PDL1, an enhanced ability to block the binding of PDL1 and PD1, an enhanced functional activity for blocking TGF?1, an enhanced ability to promote the secretion of IFN-? by T cells, a better immunomodulatory effect and a better tumor inhibitory effect.
    Type: Application
    Filed: June 8, 2020
    Publication date: July 7, 2022
    Inventors: DEYONG SONG, HONGGUANG XU, ZHEN HAN
  • Publication number: 20220207658
    Abstract: Various image sharpening techniques are disclosed. For example, a method for image sharpening includes obtaining, using at least one sensor of an electronic device, an image that includes visual content. The method also includes generating an edge map that indicates edges of the visual content within the image. The method further includes applying a high-pass signal and an adaptive gain based on the edge map to sharpen the image. The method also includes generating a bright halo mask and a dark halo mask based on the edge map, where the bright halo mask indicates an upper sharpening limit and the dark halo mask indicates a lower sharpening limit. In addition, the method includes modifying a level of sharpening at one or more of the edges within the sharpened image to provide halo artifact reduction based on the bright halo mask and the dark halo mask.
    Type: Application
    Filed: December 31, 2020
    Publication date: June 30, 2022
    Inventors: Zhen Tong, Yibo Xu, John W. Glotzbach, Hamid R. Sheikh, Ruiwen Zhen, Baekdu Choi
  • Patent number: 11369243
    Abstract: A dust bin and a vacuum cleaner combination provided with the dust bin are provided. The dust bin includes a dust chamber, a dust inlet detachably connected to a dust suction apparatus, and a sealing structure for implementing the sealing between the dust suction apparatus and the dust bin. The dust suction apparatus has a dust outlet joined to the dust inlet. The vacuum cleaner combination includes a dust suction apparatus and a dust bin detachably connected to the dust suction apparatus. The dust suction apparatus has a housing and a dust cup assembly connected to the housing. The dust cup assembly includes a cup body and a filter apparatus disposed in the cup body. Compared with the prior art, in the present invention, a detachable multi-purpose dust bin with a simple structure is disposed, so that the dust collection chamber of the vacuum cleaner is flexibly increased.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 28, 2022
    Assignee: Positec Power Tools (Suzhou) Co., Ltd.
    Inventors: Hongfeng Zhong, Jingtao Xu, Shisong Zhang, Binbin Xu, Xiaoli Pang, Hongbing Wu, Guojun Chen, Xianghua Meng, Zhen Zhang
  • Patent number: 11371907
    Abstract: A method and device for city-scale nonlinear time-history analysis. The method comprises: acquiring building data; obtaining a model type corresponding to the building data according to the building data; establishing a multiple mass shear series model or a multiple mass shear-flexural parallel model corresponding to the building data according to the model type corresponding to the building data; performing nonlinear history analysis according to time history data of ground motion acceleration from each building through the multiple mass shear series model or the multiple mass shear-flexural parallel model, to obtain a nonlinear history analysis result; obtaining a seismic damage state and an analysis result of each story of each building according to the nonlinear history analysis result.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: June 28, 2022
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xinzheng Lu, Zhen Xu
  • Patent number: 11364042
    Abstract: Methods for performing non-invasive thrombolysis with ultrasound using, in some embodiments, one or more ultrasound transducers to focus or place a high intensity ultrasound beam onto a blood clot (thrombus) or other vascular inclusion or occlusion (e.g., clot in the dialysis graft, deep vein thrombosis, superficial vein thrombosis, arterial embolus, bypass graft thrombosis or embolization, pulmonary embolus) which would be ablated (eroded, mechanically fractionated, liquefied, or dissolved) by ultrasound energy. The process can employ one or more mechanisms, such as of cavitational, sonochemical, mechanical fractionation, or thermal processes depending on the acoustic parameters selected. This general process, including the examples of application set forth herein, is henceforth referred to as “Thrombolysis.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: June 21, 2022
    Assignee: The Regents of the University of Michigan
    Inventors: Adam D. Maxwell, Zhen Xu, Hitinder S. Gurm, Charles A. Cain
  • Publication number: 20220183146
    Abstract: In an electronic device, a circuit board connects different systems or structures such that heat of a system with a relatively large amount of heat can be transferred to a position or a heat dissipation structure with a relatively small amount of heat, thereby mitigating local high temperatures in the electronic device and distributing heat more evenly throughout the electronic device.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 9, 2022
    Inventors: Zhi Yuan, Guo Yang, Jian Shi, Linfang Jin, Zhen Xu
  • Publication number: 20220146339
    Abstract: Disclosed are a preparation method for a graphene aerogel array sensor and use thereof. A miniature graphene aerogel array device is prepared by combining in-situ printing and solvent plasticization and foaming, which has excellent flexibility and stability, and is suitable for use in a variety of scenarios, such as sensors, and energy storage devices, etc. The array sensor provided in the present disclosure exhibites extremely high stability, high accuracy and reliability. Combining with deep machine learning, the array sensor can be endowed with the function of learning and recognition of machine intelligence, thus greatly promoting the development of the next generation of artificial intelligence.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Inventors: ZHEN XU, KAI PANG, CHAO GAO, XIAOTING LIU
  • Publication number: 20220143034
    Abstract: Novel dry powder compositions comprising and methods relating thereto are provided. The dry powder compositions comprise PDE5 inhibitors, such as vardenafil, or pharmaceutically acceptable salts or esters thereof. The dry powder compositions may optionally include an carrier/excipient. The concentration of active agent may be at least about 2% by weight. Methods of aerosolizing the dry powder compositions and using them to treat various diseases are also disclosed.
    Type: Application
    Filed: January 20, 2022
    Publication date: May 12, 2022
    Applicant: Respira Therapeutics, Inc.
    Inventors: Zhen Xu, Hugh Smyth, Aileen Gibbons, Revati Shreeniwas, Pravin Soni, Dan Deaton, James Hannon, Stephen Lermer, Robert Curtis, Martin J. Donovan
  • Publication number: 20220115966
    Abstract: A power tool includes a housing, a brushless motor disposed inside the housing, and a controller. The controller is configured to receive power-off signals and power-on signals. Upon receiving a power-on signal, the controller is further configured to receive a time signal indicative of a time interval from the last power-off signal to the current power-on signal. The controller is further configured to determine whether the time interval is greater than or equal to a first time threshold and less than a second time threshold, and brake the motor before start-up if the time interval is greater than or equal to the first time threshold and less than the second time threshold.
    Type: Application
    Filed: December 23, 2021
    Publication date: April 14, 2022
    Inventors: Zhen Xu, Junya Duan, Jifeng Feng