Patents by Inventor Yongchao LIU

Yongchao LIU 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).

  • Patent number: 11855277
    Abstract: This application provides a composite positive-electrode material and a preparation method thereof, a positive-electrode plate, a secondary battery, and a battery module, a battery pack, and an apparatus containing such secondary battery. The composite positive-electrode material includes a core and a coating layer covering at least part of a surface of the core, where the core includes a positive-electrode pre-lithiation material, the positive-electrode pre-lithiation material includes a lithium-rich metal oxide, and the coating layer includes a positive-electrode active material.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: December 26, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Bangrun Wang, Na Liu, Chengdu Liang, Yongchao Liu, Xin Sun, Haotian Xie
  • Publication number: 20230374807
    Abstract: A cleaning robot for swimming pools includes a charging assembly, a floating assembly, a power assembly and a cleaning assembly. The charging assembly includes a charging mount provided with a first charging induction portion and a first magnet set. The floating assembly includes a floating body, and a second charging induction portion and a second magnet set are disposed on a lateral portion of the floating body. The floating assembly is attracted with the first magnet set of the charging assembly through the second magnet set, and the first charging induction portion and the second charging induction portion are arranged to charge the power assembly after being turned on. The floating assembly and the cleaning assembly are provided with a first and a second travel module for driving the floating assembly and the cleaning assembly respectively. The floating assembly is connected to the cleaning assembly through a power supply cable.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 23, 2023
    Applicant: Hubei Yimu Electronic Technology Co., Ltd.
    Inventors: Yongchao LIU, Yanshan HAN, Rong XIANG, Hao DING
  • Patent number: 11812086
    Abstract: A video data obtaining method comprises: deploying at least two simulators, each of the at least two simulators being used to simulate operation of one mobile terminal; sending video access requests to a server respectively by means of the at least two simulators; and respectively receiving, by means of the at least two simulators, video data returned by the server according to the corresponding video access requests. During the respectively receiving, by means of the at least two simulators, video data returned by the server according to the corresponding video access requests, the obtaining method further comprises: intercepting the video data returned by the server according to the corresponding video access requests, and storing the intercepted video data in a set database.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: November 7, 2023
    Assignees: CHINA MOBILE (SUZHOU) SOFTWARE TECHNOLOGY CO., LTD., CHINA MOBILE COMMUNICATIONS GROUP CO., LTD.
    Inventors: Yongchao Liu, Yi Wang, Panpan Duan
  • Patent number: 11803752
    Abstract: Implementations of the present specification provide a model-based prediction method and apparatus. The method includes: a model running environment receives an input tensor of a machine learning model; the model running environment sends a table query request to an embedding running environment, the table query request including the input tensor, to request low-dimensional conversion of the input tensor; the model running environment receives a table query result returned by the embedding running environment, the table query result being obtained by the embedding running environment by performing embedding query and processing based on the input tensor; and the model running environment inputs the table query result into the machine learning model, and runs the machine learning model to complete model-based prediction.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: October 31, 2023
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Yongchao Liu, Sizhong Li, Guozhen Pan, Jianguo Xu, Qiyin Huang
  • Publication number: 20230307635
    Abstract: This application provides a positive active material, a positive electrode plate, an electrochemical energy storage apparatus, and an apparatus. The positive active material is LixNiyCozMkMepOrAm, or LixNiyCozMkMepOrAm with a coating layer on its surface; and the positive active material is single crystal or quasi-single crystal particles, and a particle size Dn10 of the positive active material satisfies: 0.3 ?m?Dn10?2 ?m. In this application, particle morphology of the positive active material and an amount of micro powder in the positive active material are properly controlled, to effectively reduce side reactions between the positive active material and an electrolyte solution, decrease gas production of the electrochemical energy storage apparatus, and improve storage performance of the electrochemical energy storage apparatus without deteriorating an energy density, cycle performance, and rate performance of the electrochemical energy storage apparatus.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 28, 2023
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Rui DU, Yongchao Liu, Chongheng Shen, Sihui Wang, Na Liu
  • Publication number: 20230261178
    Abstract: This application provides a composite positive-electrode material and a preparation method thereof, a positive-electrode plate, a secondary battery, and a battery module, a battery pack, and an apparatus containing such secondary battery. The composite positive-electrode material includes a core and a coating layer covering at least part of a surface of the core, where the core includes a positive-electrode pre-lithiation material, the positive-electrode pre-lithiation material includes a lithium-rich metal oxide, and the coating layer includes a positive-electrode active material.
    Type: Application
    Filed: October 21, 2022
    Publication date: August 17, 2023
    Inventors: Bangrun WANG, Na LIU, Chengdu LIANG, Yongchao LIU, Xin SUN, Haotian XIE
  • Publication number: 20230223521
    Abstract: The present invention relates to an electrode active material, a preparation method thereof, an electrode, a battery, and an apparatus. The electrode active material includes: a core and a coating layer, where the core includes a ternary material, the coating layer coats the core, the coating layer includes a reaction product of a sulfur-containing compound and a lithium-containing compound, and the reaction product includes element Li, element S, and element O.
    Type: Application
    Filed: February 10, 2023
    Publication date: July 13, 2023
    Inventors: Chengdu LIANG, Yongchao LIU, Na LIU, Yingjie GUAN, Qisen HUANG, Wei FU
  • Publication number: 20230223523
    Abstract: A positive electrode plate for secondary battery, a secondary battery, a battery module, a battery pack, and an apparatus are provided. Some embodiments provide a positive electrode plate for secondary battery, where the positive electrode plate includes a positive electrode current collector and a positive electrode active substance layer located on a surface of the positive electrode current collector, the positive electrode active substance layer includes a positive electrode active substance, the positive electrode active substance contains a first lithium-nickel transition metal oxide and a second lithium-nickel transition metal oxide, the first lithium-nickel transition metal oxide contains a first matrix and a first coating layer located on a surface of the first matrix, the first matrix is secondary particles, and the second lithium-nickel transition metal oxide is single crystal particles or particles with quasi-single crystal morphology.
    Type: Application
    Filed: March 22, 2023
    Publication date: July 13, 2023
    Inventors: Xue Leng, Rui Du, Na Liu, Yongchao Liu, Huan Ni
  • Patent number: 11699789
    Abstract: This application provides a positive active material, a positive electrode plate, an electrochemical energy storage apparatus, and an apparatus. The positive active material is LixNiyCozMkMepOrAm, or LixNiyCozMkMepOrAm with a coating layer on its surface; and the positive active material is single crystal or quasi-single crystal particles, and a particle size Dn10 of the positive active material satisfies: 0.3 ?m?Dn10?2 ?m. In this application, particle morphology of the positive active material and an amount of micro powder in the positive active material are properly controlled, to effectively reduce side reactions between the positive active material and an electrolyte solution, decrease gas production of the electrochemical energy storage apparatus, and improve storage performance of the electrochemical energy storage apparatus without deteriorating an energy density, cycle performance, and rate performance of the electrochemical energy storage apparatus.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 11, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Rui Du, Yongchao Liu, Chongheng Shen, Sihui Wang, Na Liu
  • Publication number: 20230207812
    Abstract: This application discloses a lithium supplement for lithium secondary batteries, a preparation method thereof, and a lithium secondary battery, a battery module, a battery pack, and an apparatus. Tests show that the lithium supplement of this application can maintain its own stability and low metal dissolution during long-term use of lithium secondary batteries, effectively improving energy density of lithium secondary batteries and ensuring a low self-discharge rate of lithium secondary batteries, thereby ensuring that the lithium secondary battery has high energy density, long cycle life, and high safety.
    Type: Application
    Filed: December 2, 2022
    Publication date: June 29, 2023
    Inventors: Bangrun WANG, Na LIU, Chengdu LIANG, Yongchao LIU, Xin SUN, Haotian XIE
  • Publication number: 20230207782
    Abstract: This application relates to an electrode active composition, a preparation method thereof, an electrode, a battery, and an apparatus. The electrode active composition includes: a first component, the first component being lithium cobalt oxide particles; and a second component, the second component being ternary material particles. The first component includes lithium cobalt oxide particles with a particle size greater than 11 ?m and lithium cobalt oxide particles with a particle size less than 6 ?m, and a ratio in number of the lithium cobalt oxide particles with a particle size greater than 11 ?m to the lithium cobalt oxide particles with a particle size less than 6 ?m is 0.2-4.8, and in some embodiments, 0.2-2.8. A summed number of the lithium cobalt oxide particles with a particle size greater than 11 ?m and the lithium cobalt oxide particles with a particle size less than 6 ?m accounts for above 90% of a total number of particles in the first component.
    Type: Application
    Filed: February 14, 2023
    Publication date: June 29, 2023
    Inventors: Yingjie GUAN, Yongchao LIU, Qisen HUANG, Na LIU, Chengdu LIANG
  • Patent number: 11640531
    Abstract: An example method for updating convolutional neural network includes: obtaining a sample with a classification label; performing a first operation on the sample based on parameters of each layer of front-end network, to obtain a first operation result; performing a second operation on the sample based on the first operation result and the parameters of each layer of back-end network that the first GPU has, to obtain a second operation result; separately sending the first operation result to the other GPUs; receiving a third operation result obtained after each other GPU performs a third operation on the sample based on their parameters of each layer of back-end network and the first operation result; combining the second and third operation results to obtain a classification result; determining a prediction error based on the classification result and the classification label; and updating the convolutional neural network based on the prediction error.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: May 2, 2023
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Qiyin Huang, Yongchao Liu, Haitao Zhang, Chengping Yang
  • Publication number: 20230126587
    Abstract: This disclosure relates to the field of electrochemistry, and in particular, to a positive electrode material, an electrochemical energy storage apparatus and a vehicle. The positive electrode material of this disclosure includes a substrate, with a formula of the substrate being LixNiyCOzMkMepOrAm, where 0.95?x?1.05, 0.50?y?0.95, 0?z?0.2, 0?k?0.4, 0?p?0.05, 1?r?2, 0?m?2, m+r?2; a coating layer is disposed on the substrate, where the coating layer includes a coating element; and absorbance of nickel leachate per unit mass of the positive electrode material w?0.7.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Rui DU, Sihui WANG, Yongchao LIU, Chi LUO, Deyu ZHAO, Na LIU
  • Publication number: 20230109256
    Abstract: The present invention belongs to the bioengineering field, and relates to a method for fermentation production of L-theanine by using an Escherichia coli genetically engineered bacterium. The engineered bacterium is obtained by serving a strain as an original strain, wherein the strain is obtained after performing a single copy of T7RNAP, a dual copy of gmas, xylR knockout, and sucCD knockout on an Escherichia coli W3110 genome, and by integrating genes xfp, pta, acs, gltA, and ppc, and knocking out ackA on the genome. The present invention has a high yield, and stable production performance; after 20-25 h, L-theanine has a titer of 75-80 g/L, and the yield is up to 52-55%. The fermentation broth is purified by membrane separation in combination with a cation-anion resin series technique. Moreover, the one-step crystallization yield is 72.3% and the L-theanine final product has a purity of 99%.
    Type: Application
    Filed: August 17, 2022
    Publication date: April 6, 2023
    Inventors: Xiaoguang Fan, Xiaodong Liu, Jing Li, Ning Chen, Bochao Liu, Shuai Liu, Chaochao Sun, Yongchao Liu, Jiajia Teng, Mengtao Zhang, Yuanqing Ji, Yuhang Zhou, Qingyang Xu
  • Publication number: 20230039406
    Abstract: A video data obtaining method comprises: deploying at least two simulators, each of the at least two simulators being used to simulate operation of one mobile terminal; sending video access requests to a server respectively by means of the at least two simulators; and respectively receiving, by means of the at least two simulators, video data returned by the server according to the corresponding video access requests. During the respectively receiving, by means of the at least two simulators, video data returned by the server according to the corresponding video access requests, the obtaining method further comprises: intercepting the video data returned by the server according to the corresponding video access requests, and storing the intercepted video data in a set database.
    Type: Application
    Filed: December 29, 2020
    Publication date: February 9, 2023
    Inventors: Yongchao LIU, Yi WANG, Panpan DUAN
  • Patent number: 11569510
    Abstract: This disclosure relates to the field of electrochemistry, and in particular, to a positive electrode material. The positive electrode material of this disclosure includes a substrate, with a formula of the substrate being LixNiyCozMkMepOrAm, where 0.95?x?1.05, 0.50?y?0.95, 0?z?0.2, 0?k?0.4, 0?p?0.05, 1?r?2, 0?m?2, m+r?2; a coating layer is disposed on the subs hate, where the coating layer includes a coating element; and absorbance of nickel leachate per unit mass of the positive electrode material w?0.7.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: January 31, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Rui Du, Sihui Wang, Yongchao Liu, Chi Luo, Deyu Zhao, Na Liu
  • Patent number: 11514602
    Abstract: A gaze estimation method includes receiving, by a processor, input data including a current image and a previous image each including a face of a user, determining, by the processor, a gaze mode indicating a relative movement between the user and a camera that captured the current image and the previous image based on the input data, and estimating, by the processor, a gaze of the user based on the determined gaze mode, wherein the determined gaze mode is one of a plurality of gaze modes comprising a stationary mode and a motion mode.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 29, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tianchu Guo, Hui Zhang, Xiabing Liu, Chang Kyu Choi, Jaejoon Han, Yongchao Liu
  • Patent number: 11500992
    Abstract: The present specification discloses a trusted execution environment (TEE)-based model training method and apparatus. In one or more embodiments, the method includes: obtaining encrypted target samples from an encrypted training sample set in a first execution environment, inputting the encrypted target samples into a second execution environment that is a trusted execution environment (TEE) different from the first execution environment, decrypting the encrypted target samples in the TEE to obtain decrypted target samples, inputting the decrypted target samples into a feature extraction model in the TEE to determine sample features, determining the sample features output from the TEE as target sample features for a current iteration of a training process for a target model, and performing, based on the target sample features, the current iteration on the target model in the first execution environment.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: November 15, 2022
    Assignee: Alipay (Hangzhou) Information Technology Co., Ltd.
    Inventors: Yongchao Liu, Bei Jia, Yue Jin, Chengping Yang
  • Patent number: 11453898
    Abstract: The present invention belongs to the bioengineering field, and relates to a method for fermentation production of L-theanine by using an Escherichia coli genetically engineered bacterium. The engineered bacterium is obtained by serving a strain as an original strain, wherein the strain is obtained after performing a single copy of T7RNAP, a dual copy of gmas, xylR knockout, and sucCD knockout on an Escherichia coli W3110 genome, and by integrating genes xfp, pta, acs, gltA, and ppc, and knocking out ackA on the genome. The present invention has a high yield, and stable production performance; after 20-25 h, L-theanine has a titer of 75-80 g/L, and the yield is up to 52-55%. The fermentation broth is purified by membrane separation in combination with a cation-anion resin series technique. Moreover, the one-step crystallization yield is 72.3% and the L-theanine final product has a purity of 99%.
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: September 27, 2022
    Assignees: Henan Julong Biological Engineering Co., Ltd, Tianjin University of Science and Technology
    Inventors: Xiaoguang Fan, Xiaodong Liu, Jing Li, Ning Chen, Bochao Liu, Shuai Liu, Chaochao Sun, Yongchao Liu, Jiajia Teng, Mengtao Zhang, Yuanqing Ji, Yuhang Zhou, Qingyang Xu
  • Patent number: 11361217
    Abstract: Embodiments of the present specification provide chips and chip-based data processing methods. In an embodiment, a method comprises: obtaining data associated with one or more neural networks transmitted from a server; for each layer of a neural network of the one or more neural networks, configuring, based on the data, a plurality of operator units based on a type of computation each operator unit performs; and invoking the plurality of operator units to perform computations, based on neurons of a layer of the neural network immediately above, of the data for each neuron to produce a value of the neuron.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: June 14, 2022
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Guozhen Pan, Jianguo Xu, Yongchao Liu, Haitao Zhang, Qiyin Huang, Guanyin Zhu