Patents by Inventor Jianjun Zhang

Jianjun 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).

  • Patent number: 11366450
    Abstract: Apparatus and method is disclosed for determining position of a robot relative to objects in a workspace which includes the use of a camera, scanner, or other suitable device in conjunction with object recognition. The camera, etc is used to receive information from which a point cloud can be developed about the scene that is viewed by the camera. The point cloud will be appreciated to be in a camera centric frame of reference. Information about a known datum is used and compared to the point cloud through object recognition. For example, a link from a robot could be the identified datum so that, when recognized, the coordinates of the point cloud can be converted to a robot centric frame of reference since the position of the datum would be known relative to the robot.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: June 21, 2022
    Assignee: ABB Schweiz AG
    Inventors: Biao Zhang, Jianjun Wang, Remus Boca
  • Patent number: 11353162
    Abstract: An unmanned aerial vehicle (UAV)-based intelligent anomaly identification method for petroleum pipeline inspection is provided. The precise UAV cruise technology is combined with a target detection algorithm to design an intelligent petroleum pipeline inspection method, which realizes fast anomaly detection for petroleum pipeline inspection based on the existing computer processing capability. In addition, a lot of optimization algorithms and improvements are made for target detection under special working conditions of UAV inspection, and a dedicated target detection network model adapted to these conditions is trained. The UAV-based intelligent anomaly identification method realizes accurate, real-time anomaly reporting for petroleum pipeline inspection, reduces the blindness of manual inspection, greatly improves inspection efficiency, reduces labor costs, and has practicability.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: June 7, 2022
    Assignee: CHENGDU UNIVERSITY OF TECHNOLOGY
    Inventors: Qiong Li, Lin Yue, Yu Zhang, Jianjun He
  • Patent number: 11349674
    Abstract: Embodiments of this application relate to a digital certificate management method performed at a computer device. The method includes: receiving a digital certificate generation request submitted by a certificate application node; transmitting identification information to consensus authentication centers for certification to obtain certification results obtained by the consensus authentication centers from performing the certification according to the identification information; determining an identification result corresponding to the certificate application node according to the certification results of the consensus authentication centers; generating, when the certification succeeds, a target digital certificate corresponding to the certificate application node submitting the digital certificate generation request; and writing the target digital certificate as a transaction resource into a blockchain associated with the consensus authentication centers.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: May 31, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Jianjun Zhang, Zhen Zeng, Zichao Tang, Jiguang Lu
  • Publication number: 20220166079
    Abstract: A manganese-lithium separation process and a pre-extraction solution preparation process in comprehensive recovery of ternary battery wastes, and a method for comprehensive recovery of cobalt, nickel, manganese and lithium elements from the ternary battery wastes, relates to a method for recycling battery wastes. According to the present disclosure, cobalt and nickel ions are separated from an impurity-removed solution by a hydrolysis method; manganese, lithium and other ions in the impurity-removed solution are free from an extraction procedure, so that most manganese ions are separated and removed by a wet method before extraction, to prevent the manganese ions from entering the extraction system; nickel ions are free from an extraction procedure of full extraction and full back-extraction; and nickel hydroxide is directly precipitated after related impurities are removed by extraction.
    Type: Application
    Filed: January 6, 2022
    Publication date: May 26, 2022
    Inventors: Xunbing LIU, Jianjun OUYANG, Xijuan LIU, Shanmu WU, Xiangping ZHAO, Xiongwu DONG, Chaowen ZHANG, Quncheng ZHOU, Chun LUO, Sanxian CHEN
  • Patent number: 11343233
    Abstract: An embodiment of this application discloses a node control method performed by a forwarding platform in a distributed computer system. The method includes: establishing, by a forwarding platform, a secure link with a user terminal through a domain name of the forwarding platform; obtaining, by the forwarding platform through the secure link, a request packet transmitted by a user terminal, and the request packet comprising an address identifier of a target node in the distributed computer system and a request content of the user terminal for the target node; encrypting, by the forwarding platform, the request content to obtain a first encrypted packet; and transmitting, by the forwarding platform, the first encrypted packet to the target node according to the address identifier. Computing device and non-transitory computer-readable storage medium counterparts are also contemplated.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: May 24, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Jiguang Lu, Jianjun Zhang, Shicheng Feng
  • Publication number: 20220157942
    Abstract: The present invention provides a patterned silicon substrate-silicon germanium thin film composite structure comprising a silicon substrate having a patterned structure, a silicon germanium buffer layer positioned on the silicon substrate, a silicon germanium/silicon superlattice layer positioned on the silicon germanium buffer layer and a silicon germanium thin film layer positioned on the silicon germanium/silicon superlattice layer, wherein the silicon germanium/silicon superlattice layer comprises silicon germanium layers and silicon layers which are grown alternately. The present invention also provides a preparation method of the patterned silicon substrate-silicon germanium thin film composite structure of the present invention. The present invention also provides an application of the patterned silicon substrate-silicon germanium thin film composite structure of the present invention in strained silicon devices.
    Type: Application
    Filed: March 3, 2021
    Publication date: May 19, 2022
    Applicant: Institute of Physics, Chinese Academy of Sciences
    Inventors: Jianjun Zhang, Jieyin Zhang
  • Publication number: 20220105504
    Abstract: Disclosed is a method for improving the stability of a catalyst in recycling HFC-23. The recycling is realized by means of a fluorine-chlorine exchange reaction with HFC-23 and a halogenated hydrocarbon. The catalyst for the fluorine-chlorine exchange reaction comprises a main body catalyst and a metal oxide, wherein the metal oxide is selected from at least one metal oxide of K, Na, Fe, Co, Cu, Ni, Zn or Ti, and has an addition amount of 0.1-5 wt %. The present invention has advantages such as a good catalyst stability, a long life, and a low content of by-product CFC-12.
    Type: Application
    Filed: February 24, 2020
    Publication date: April 7, 2022
    Inventors: Wucan LIU, Jianjun ZHANG, Wenfeng HAN, Shucheng WANG, Feixiang ZHOU
  • Publication number: 20220101993
    Abstract: The present disclosure relates to a method and system for controlling a medical device.
    Type: Application
    Filed: December 2, 2019
    Publication date: March 31, 2022
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jianjun ZHANG, Wensong CHEN
  • Publication number: 20220097030
    Abstract: Disclosed is a method for reducing carbon deposits on a catalyst in recycling HFC-23. The recycling is realized by means of a fluorine-chlorine exchange reaction with HFC-23 and a halogenated hydrocarbon. The catalyst for the fluorine-chlorine exchange reaction comprises a main body catalyst and a precious metal. The precious metal is selected from at least one of Pt, Pd, Ru, Au or Rh, and has an addition amount of 0.01-2 wt %. During the fluorine-chlorine exchange reaction, hydrogen gas is introduced. The invention has advantages of good catalyst stability, long life, etc.
    Type: Application
    Filed: February 24, 2020
    Publication date: March 31, 2022
    Inventors: Jianjun ZHANG, Wenfeng HAN, Shucheng WANG, Wucan LIU, Feixiang ZHOU
  • Publication number: 20220091918
    Abstract: The present disclosure discloses a client device having a digital signature. The client device includes processing circuitry configured to send a message to be stored in nodes after the nodes reach a consensus on the message. The message includes the digital signature of the client device. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. The nodes are in a first consensus mode for reaching the consensus on the message. After verifying the digital signatures, the processing circuitry determines whether one or more of the nodes has malfunctioned based on the results. Based on a determination that the one or more of the nodes has malfunctioned, the processing circuitry triggers the nodes to switch from the first consensus mode to a second consensus mode for reaching the consensus on the message.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui GUO, Maocai LI, QI ZHAO, Jianjun ZHANG, Haitao TU, Zongyou WANG, Jun LIANG, Dawei ZHU, Lisheng CHEN, Binhua LIU
  • Patent number: 11254642
    Abstract: The present invention provides a method for the preparing of 2-chloro-5-trifluoromethylpyridine, comprising two steps of chlorofluorination reaction and chlorination reaction, the chlorination catalyst used in the chlorination reaction was chosen from a fluoride, an oxide, a hydroxide, a carbonate, or a chloride of magnesium, calcium and barium and a supported palladium catalyst; or under the action of at least one catalyst chosen from ZSM-5, 5A, ? and 13× molecular sieves, 3-trifluoromethylpyridine and chlorine gas phase have reaction to obtain 2-chloro-5-trifluoromethylpyridine. Or, under the action of a catalyst chosen from a fluoride, an oxide, a hydroxide, a carbonate, or a chloride of magnesium, calcium, and barium and a supported palladium catalyst, 3-trifluoromethylpyridine and chlorine gas phase have reaction to obtain 2-chloro-5-trifluoromethylpyridine.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: February 22, 2022
    Assignees: ZHEJIANG LANTIAN ENVIRONMENTAL PROTECTION HI-TECH CO., LTD., ZHEJIANG RESEARCH INSTITUTE OF CHEMICAL INDUSTRY CO., LTD., SINOCHEM LANTIAN CO., LTD.
    Inventors: Wanjin Yu, Shengda Lin, Minyang Liu, Wucan Liu, Jianjun Zhang, Xianjin Chen
  • Publication number: 20220050045
    Abstract: A device measures a frictional force and a film thickness of a lubricating oil film in different surface velocity directions. The device includes an experiment bench. A translation stage is mounted to the experiment bench, and is linearly movable. A main shaft system is mounted to the experiment bench. A glass disc is mounted to the main shaft system and is rotatable. An arcuate guide rail is disposed on the translation stage. A rotary base is mounted to the arcuate guide rail and is movable along the arcuate guide rail. A loading system is mounted to the rotary base. A steel ball of the loading system and the glass disc are movable relative to each other. A rotary bearing in the rotary base is configured to convert a frictional force generated from the relative movement to a pressure allowed to be collected by a pressure sensor on the rotary base.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 17, 2022
    Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY
    Inventors: Jianjun ZHANG, Hewei LU, Qinglun CHE, Jiahao ZHANG, Zhaogang JING, Chenglong LIU, Feng GUO
  • Patent number: 11237896
    Abstract: The present disclosure discloses a distributed system and a message processing method. The distributed system includes a client and a plurality of nodes. The client includes processing circuitry that is configured to send a message including a digital signature of the client. The distributed system is in a first consensus mode for reaching a consensus on the message. The processing circuitry obtains results from a subset of the nodes that receive the message. The results have respective digital signatures of the subset of the nodes. After verifying the digital signatures of the subset of the nodes, the processing circuitry of the client determines, based on the results, whether one or more of the nodes in the distributed system is malfunctioned.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: February 1, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Rui Guo, Maocai Li, Qi Zhao, Jianjun Zhang, Haitao Tu, Zongyou Wang, Jun Liang, Dawei Zhu, Lisheng Chen, Binhua Liu
  • Publication number: 20220019308
    Abstract: A touch display substrate and a display device are provided. The touch display substrate includes a plurality of sub-pixel units (10), data lines (20) and touch signal lines (30). For any two adjacent rows of sub-pixel units, the sub-pixel unit (10) in one row of sub-pixel units is staggered in a row direction with respect to the sub-pixel unit (10) in the other row of sub-pixel units adjacent to the one row of sub-pixel units by a distance of X sub-pixel units (10), and 0<X<1; these two sub-pixel units (10) have different colors. Data lines (20) and touch signal lines (30) are at gaps which extend in a column direction and are between the plurality of sub-pixel units (10). The touch signal lines (30) and the data lines (20) are in a same layer and the touch signal lines (30) are insulated from the data lines (20).
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Inventors: Zhen WANG, Yun QIAO, Jian SUN, Xiaozhou ZHAN, Jun FAN, Jianjun ZHANG, Cheng LI, Hailin XUE
  • Publication number: 20220002249
    Abstract: A method for preparing 2,3-dichloro-5-trifluoromethylpyridine, comprising at a temperature of 100˜150° C. and a pressure of 0.5˜5.0 MP, in presence of at least one catalyst selected from supported metal chloride, supported zeolite molecular sieve and supported heteropolyacid, 2-chloro-5-trifluoromethylpyridine reacts with chlorine gas to obtain 2,3-dichloro-5-trifluoromethylpyridine. The preparing method provided by the present invention has advantages such as high selectivity of desired product, high utilization rate of chlorine gas, moderate process condition, simple operation and less three wastes. The present invention also discloses a preparing method for preparing 2-chloro-5-trifluoromethylpyridine, which is capable of reducing unit consumption, reducing separation cost, and improving safety compared to the prior art.
    Type: Application
    Filed: September 17, 2021
    Publication date: January 6, 2022
    Inventors: Wanjin YU, Shengda LIN, Minyang LIU, Wucan LIU, Jianjun ZHANG, Xianjin CHEN
  • Publication number: 20210408081
    Abstract: An array substrate, a method of manufacturing an array substrate, a display panel, and an electronic device are provided. The array substrate includes a display area and a peripheral area; the display area includes a pixel region, the pixel region includes a first thin film transistor, and the first thin film transistor includes a first active layer; the peripheral area includes a second thin film transistor, and the second thin film transistor includes a second active layer; and the first active layer includes a material of oxide semiconductor, and the second active layer includes a material of poly-silicon semiconductor.
    Type: Application
    Filed: April 8, 2019
    Publication date: December 30, 2021
    Inventors: Peng LIU, Fuqiang LI, Jun FAN, Bailing LIU, Jianjun ZHANG, Yusheng LIU, Mei LI
  • Patent number: 11186546
    Abstract: The present invention discloses a method for preparing 2,3-dichloro-5-trifluoromethylpyridine, comprising at a temperature of 100˜150° C. and a pressure of 0.5˜5.0 MP, in presence of at least one catalyst selected from supported metal chloride, supported zeolite molecular sieve and supported heteropolyacid, 2-chloro-5-trifluoromethylpyridine reacts with chlorine gas to obtain 2,3-dichloro-5-trifluoromethylpyridine. The preparing method provided by the present invention has advantages such as high selectivity of desired product, high utilization rate of chlorine gas, moderate process condition, simple operation and less three wastes. The present invention also discloses a preparing method for preparing 2-chloro-5-trifluoromethylpyridine, which is capable of reducing unit consumption, reducing separation cost, and improving safety compared to the prior art.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: November 30, 2021
    Assignees: Zhejiang Lantian Environmental Protection Hi-Tech Co., Ltd., Zhejiang Research Institute of Chemical Industry Co., Ltd., Sinochem Lantian Co., Ltd.
    Inventors: Wanjin Yu, Shengda Lin, Minyang Liu, Wucan Liu, Jianjun Zhang, Xianjin Chen
  • Patent number: 11163389
    Abstract: A touch display substrate and a display device are provided. The touch display substrate includes a plurality of sub-pixel units (10), data lines (20) and touch signal lines (30). For any two adjacent rows of sub-pixel units, the sub-pixel unit (10) in one row of sub-pixel units is staggered in a row direction with respect to the sub-pixel unit (10) in the other row of sub-pixel units adjacent to the one row of sub-pixel units by a distance of X sub-pixel units (10), and 0<X<1; these two sub-pixel units (10) have different colors. Data lines (20) and touch signal lines (30) are at gaps which extend in a column direction and are between the plurality of sub-pixel units (10). The touch signal lines (30) and the data lines (20) are in a same layer and the touch signal lines (30) are insulated from the data lines (20).
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: November 2, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhen Wang, Yun Qiao, Jian Sun, Xiaozhou Zhan, Jun Fan, Jianjun Zhang, Cheng Li, Hailin Xue
  • Patent number: 11116806
    Abstract: Provided are a composite probiotic lactic acid bacteria powder and a preparation method and use thereof, the composite probiotic lactic acid bacteria powder can be composited from Lactobacillus casei Zhang bacteria powder, Bifidobacterium animalis V9 bacteria powder, Lactobacillus plantarum P8 bacteria powder, Lactobacillus plantarum C2 bacteria powder, with prebiotics and fruit-vegetable powder. The composite probiotic lactic acid bacteria powder has a significantly protective effect against irritable bowel syndrome, oral infection and nasal cavity infection, and can prevent the occurrence of upper respiratory tract infection, at the same time, it can improve gastrointestinal symptoms, regulate gut microbiota and improve the body's immunity.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: September 14, 2021
    Assignee: BEIJING SCITOP BIO-TECH CO., LTD.
    Inventors: Jianjun Zhang, Chen Ma, Jicheng Wang
  • Publication number: 20210265528
    Abstract: This application relates to the electronic technology application field and provides a silicon-based substrate (10), a substrate, a manufacturing method thereof, and an optoelectronic device. The substrate includes: the silicon-based substrate (10), where one surface of the silicon-based substrate (10) has periodic protrusion structures (101), and there is an angle of inclination between a side face of each protrusion structure (101) and a bottom surface; and a group III-V material layer (20) disposed on the surface that is of the silicon-based substrate (10) and that has the protrusion structures (101).
    Type: Application
    Filed: April 30, 2021
    Publication date: August 26, 2021
    Inventors: Zhuang ZHAO, Lei LIU, Nguyen Binh LE, Ting WANG, Jianjun ZHANG