Patents by Inventor Junchao ZHENG
Junchao ZHENG 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: 12187913Abstract: The present invention relates to a coating composition, a coating method and use of the composition, and a product coated with the coating composition. The coating composition comprises: (a) an isocyanate-reactive component; (b) an isocyanate component comprising: (b1) at least one isocyanate prepolymer, the isocyanate prepolymer being a reaction product of components comprising at least one aliphatic isocyanate and at least one polyether polyol, the polyether polyol having a weight-average molecular weight of 400 to 6000 and the structure of HO—R1n—R2; and (b2) at least one isocyanate oligomer containing not less than two isocyanate groups, the weight ratio of the isocyanate prepolymer (b1) to the isocyanate oligomer (b2) being greater than 1:4 and less than 4:1; and (c) a catalyst; wherein the molar ratio of the isocyanate groups to the isocyanate-reactive groups in the coating composition is from 1.5:1 to 4:1.Type: GrantFiled: November 6, 2019Date of Patent: January 7, 2025Assignee: Covestro Deutschland AGInventors: Junchao Zheng, Jianping Shen, Hao Liu, Ling Yang, Jinqi Li
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Patent number: 12180387Abstract: The present invention relates to a coating composition, a coating method and use of the composition, and a product coated with the coating composition. The coating composition comprises: (a) an isocyanate-reactive component comprising: (a1) at least one polyaspartic ester, and (a2) optionally a polyetheraspartic ester; (b) an isocyanate component comprising: (b1) at least one isocyanate prepolymer having an isocyanate group equivalent of 300 to 1100, and (b2) at least one isocyanate oligomer containing not less than two isocyanate groups, the weight ratio of the isocyanate prepolymer (b1) to the isocyanate oligomer (b2) being from 1:4 to 4:1; (c) a catalyst; and (d) optionally an additive; wherein the coating composition has a molar ratio of isocyanate groups to isocyanate-reactive groups of 1.5:1 to 8:1. The coating composition provided by the present invention has a long pot life, and the resulting coating has the advantages of fast drying and high hardness.Type: GrantFiled: July 17, 2019Date of Patent: December 31, 2024Assignee: Covestro Deutschland AGInventors: Dorota Greszta-Franz, Jianping Shen, Junchao Zheng, Yifeng Xu, Ling Yang, Jinqi Li, Hongchao Li, Hao Liu
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Publication number: 20240346081Abstract: A method includes coordinating at a first system in an online mode: analyzing at least a portion of a search query using one or more query suggestion systems to determine scores for suggested search queries from the one or more query suggestion systems.Type: ApplicationFiled: June 27, 2024Publication date: October 17, 2024Applicant: Walmart Apollo, LLCInventors: Junchao Zheng, Vishal Kumar Rathi, Andrew Thomas Catalano, Sanjay Shah, Aniket Ashok Limaye, Jun Zhao, Zheng Yan
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Publication number: 20240256555Abstract: Systems and methods including one or more processors and one or more non-transitory storage devices storing computing instructions configured to run on the one or more processors and perform functions relating to detecting trending search queries that are popular in a short-term time period. User engagement metrics are derived from historical search engine data. A trending analysis function executes statistical analyses on the user engagement to identify the trending search queries. Other embodiments are disclosed herein.Type: ApplicationFiled: January 30, 2023Publication date: August 1, 2024Applicant: Walmart Apollo, LLCInventors: Junchao Zheng, Chen Song, Jun Zhao, Zheng Yan
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Publication number: 20240257208Abstract: A method including receiving a request from a user to view a page. The page is one of a search results page or a browse shelf page. The method also can include obtaining a respective brand affinity score for the user for each of one or more product types associated with the request. The method additionally can include generating a respective brand affinity signal for the user for each respective item in a baseline list of items to be displayed on the page, based on the request and the respective brand affinity score for the user for a product type of the one or more product types associated with the respective item. The method further can include generating a reranking of the items to be displayed on the page, based on a machine learning model and based on factors comprising the respective brand affinity signals for the user for the items and other rerank signals. The method additionally can include outputting the reranking of the items. Other embodiments are described.Type: ApplicationFiled: January 30, 2023Publication date: August 1, 2024Applicant: Walmart Apollo, LLCInventors: Jingbo Liu, Jie Zhao, Junchao Zheng, Jun Zhao, Cun Mu, Zheng Yan
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Patent number: 12038975Abstract: Systems and methods including one or more processors and one or more non-transitory computer readable media storing computing instructions that, when executed on the one or more processors, perform: receiving historical in-session user activity information; receiving, via a graphical user interface (GUI) of a user device, a partial search query from a user; analyzing the partial search query based on the historical in-session user activity information using one or more query suggestion systems to determine a respective score for respective suggested search queries from each of the one or more query suggestion systems; determining a respective absolute position metric for the respective suggested search queries from each of the one or more query suggestion systems; determining a respective efficiency metric for each of the one or more query suggestion systems based on the respective absolute position metric; analyzing the respective efficiency metric for each of the one or more query suggestion systems to deteType: GrantFiled: January 14, 2022Date of Patent: July 16, 2024Assignee: WALMART APOLLO, LLCInventors: Junchao Zheng, Vishal Kumar Rathi, Andrew Thomas Catalano, Sanjay Shah, Aniket Ashok Limaye, Jun Zhao, Zheng Yan
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Patent number: 11855285Abstract: The present invention discloses a full-gradient nickel cobalt manganese positive electrode material, a ruthenium oxide coated material and a preparation method thereof. The material has a chemical formula of LiNixCoyMn(1-x-y)O2, wherein, 0.5?x?0.9, 0.05?y?0.40, 1-x-y>0. A content of the nickel element is gradually decreased from a core portion to an outer surface of the full-gradient nickel cobalt manganese positive electrode material. A content of the manganese element is gradually increased from the core portion to the outer surface of the full-gradient nickel cobalt manganese positive electrode material. And, a content of the cobalt element is uniformly distributed in the full-gradient nickel cobalt manganese positive electrode material. The present invention also discloses a preparation method of the full-gradient nickel cobalt manganese positive electrode material. The present invention also discloses a preparation method of the ruthenium oxide coated material.Type: GrantFiled: April 13, 2020Date of Patent: December 26, 2023Assignee: CENTRAL SOUTH UNIVERSITYInventors: Hui Tong, Qijie Zhou, Bao Zhang, Xu Wang, Yingying Yao, Wanjing Yu, Junchao Zheng
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Patent number: 11795262Abstract: The present invention relates to a polyether-modified polyisocyanate composition, which is obtainable by reacting a system containing the following components: a) a polyisocyanate having an isocyanate group functionality of 2-4.5; b) a polyoxyalkylene monoether alcohol; and c) optionally a catalyst; the polyoxyalkylene monoether alcohol has a number-average molecular weight of 900 g/mol-2000 g/mol and an oxypropylene group content of 45 wt. %-100 wt. %, relative to the total weight of the oxyalkylene group of the polyoxyalkylene monoether alcohol; the system has an equivalent ratio of isocyanate group to hydroxyl group of 5:1-110:1; the polyisocyanate composition has the following characteristics: i) the average isocyanate functionality is 1.8-4.1; ii) the isocyanate group content is 8-20 wt. %; and iii) the amount of the polyoxyalkylene monoether structure is greater than 10 wt. % and less than 50 wt. %, for characteristics ii) and iii), relative to the total weight of the polyisocyanate composition.Type: GrantFiled: June 28, 2021Date of Patent: October 24, 2023Assignee: Covestro Deutschland AGInventors: Hans-Josef Laas, Raul Pires, Hao Liu, Yaguang Ma, Jianping Shen, Junchao Zheng
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Publication number: 20230229706Abstract: Systems and methods including one or more processors and one or more non-transitory computer readable media storing computing instructions that, when executed on the one or more processors, perform: receiving historical in-session user activity information; receiving, via a graphical user interface (GUI) of a user device, a partial search query from a user; analyzing the partial search query based on the historical in-session user activity information using one or more query suggestion systems to determine a respective score for respective suggested search queries from each of the one or more query suggestion systems; determining a respective absolute position metric for the respective suggested search queries from each of the one or more query suggestion systems; determining a respective efficiency metric for each of the one or more query suggestion systems based on the respective absolute position metric; analyzing the respective efficiency metric for each of the one or more query suggestion systems to deteType: ApplicationFiled: January 14, 2022Publication date: July 20, 2023Applicant: Walmart Apollo, LLCInventors: Junchao Zheng, Vishal Kumar Rathi, Andrew Thomas Catalano, Sanjay Shah, Aniket Ashok Limaye, Jun Zhao, Zheng Yan
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Publication number: 20230192937Abstract: The present invention relates to a polyether-modified polyisocyanate composition, which is obtainable by reacting a system containing the following components: a) a polyisocyanate having an isocyanate group functionality of 2-4.5; b) a polyoxyalkylene monoether alcohol; and c) optionally a catalyst; the polyoxyalkylene monoether alcohol has a number-average molecular weight of 900 g/mol-2000 g/mol and an oxypropylene group content of 45 wt. %-100 wt. %, relative to the total weight of the oxyalkylene group of the polyoxyalkylene monoether alcohol; the system has an equivalent ratio of isocyanate group to hydroxyl group of 5:1-110:1; the polyisocyanate composition has the following characteristics: i) the average isocyanate functionality is 1.8-4.1; ii) the isocyanate group content is 8-20 wt. %; and iii) the amount of the polyoxyalkylene monoether structure is greater than 10 wt. % and less than 50 wt. %, for characteristics ii) and iii), relative to the total weight of the polyisocyanate composition.Type: ApplicationFiled: June 28, 2021Publication date: June 22, 2023Inventors: Hans-Josef Laas, Raul Pires, Hao Liu, Yaguang Ma, Jianping Shen, Junchao Zheng
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Publication number: 20230174818Abstract: The present invention relates to a two-component coating composition, to a method for applying the composition and to the use of the composition, and to a product obtained by coating with the coating composition. The two-component coating composition contains an A-component containing a polyaspartic ester and a B-component containing a polyether-modified polyisocyanate, and the composition has a molar ratio of isocyanate groups to amino groups of 0.8:1-4:1. The two-component coating composition provided by the invention has the advantages of a long working time, quick drying, a high hardness and a high bubble-free film thickness.Type: ApplicationFiled: June 22, 2021Publication date: June 8, 2023Inventors: Ling Yang, Junchao Zheng, Hao Liu, Yaguang Ma, Jianping Shen, Jinqi Li
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Publication number: 20210355347Abstract: The present invention relates to a coating composition, a coating method and use of the composition, and a product coated with the coating composition. The coating composition comprises: (a) an isocyanate-reactive component; (b) an isocyanate component comprising: (b1) at least one isocyanate prepolymer, the isocyanate prepolymer being a reaction product of components comprising at least one aliphatic isocyanate and at least one polyether polyol, the polyether polyol having a weight-average molecular weight of 400 to 6000 and the structure of HO—R1n—R2; and (b2) at least one isocyanate oligomer containing not less than two isocyanate groups, the weight ratio of the isocyanate prepolymer (b1) to the isocyanate oligomer (b2) being greater than 1:4 and less than 4:1; and (c) a catalyst; wherein the molar ratio of the isocyanate groups to the isocyanate-reactive groups in the coating composition is from 1.5:1 to 4:1.Type: ApplicationFiled: November 6, 2019Publication date: November 18, 2021Inventors: Junchao Zheng, Jianping Shen, Hao Liu, Ling Yang, Jinqi Li
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Publication number: 20210277277Abstract: The present invention relates to a coating composition, a coating method and use of the composition, and a product coated with the coating composition. The coating composition comprises: (a) an isocyanate-reactive component comprising: (a1) at least one polyaspartic ester, and (a2) optionally a polyetheraspartic ester; (b) an isocyanate component comprising: (b1) at least one isocyanate prepolymer having an isocyanate group equivalent of 300 to 1100, and (b2) at least one isocyanate oligomer containing not less than two isocyanate groups, the weight ratio of the isocyanate prepolymer (b1) to the isocyanate oligomer (b2) being from 1:4 to 4:1; (c) a catalyst; and (d) optionally an additive; wherein the coating composition has a molar ratio of isocyanate groups to isocyanate-reactive groups of 1.5:1 to 8:1. The coating composition provided by the present invention has a long pot life, and the resulting coating has the advantages of fast drying and high hardness.Type: ApplicationFiled: July 17, 2019Publication date: September 9, 2021Inventors: Dorota Greszta-Franz, Jianping Shen, Junchao Zheng, Yifeng Xu, Ling Yang, Jinqi Li, Hongchao Li, Hao Liu
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Publication number: 20200335784Abstract: The present invention discloses a full-gradient nickel cobalt manganese positive electrode material, a ruthenium oxide coated material and a preparation method thereof. The material has a chemical formula of LiNixCoyMn(1-x-y)O2, wherein, 0.5?x?0.9, 0.05?y?0.40, 1-x-y>0. A content of the nickel element is gradually decreased from a core portion to an outer surface of the full-gradient nickel cobalt manganese positive electrode material. A content of the manganese element is gradually increased from the core portion to the outer surface of the full-gradient nickel cobalt manganese positive electrode material. And, a content of the cobalt element is uniformly distributed in the full-gradient nickel cobalt manganese positive electrode material. The present invention also discloses a preparation method of the full-gradient nickel cobalt manganese positive electrode material. The present invention also discloses a preparation method of the ruthenium oxide coated material.Type: ApplicationFiled: April 13, 2020Publication date: October 22, 2020Inventors: Hui TONG, Qijie ZHOU, Bao ZHANG, Xu WANG, Yingying YAO, Wanjing YU, Junchao ZHENG