Patents by Inventor Lihua Zhao
Lihua Zhao 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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Publication number: 20250135548Abstract: An example of a three-dimensionally printed object includes a bulk portion having a ferritic microstructure; and a site-specific alloyed section having a pearlite microstructure. The three-dimensionally printed object may be generated using different examples of a three-dimensional (3D) printing method. Each example of the 3D printing method utilizes a two-stage heat treatment.Type: ApplicationFiled: August 20, 2021Publication date: May 1, 2025Applicants: Hewlett-Packard Development Company, L.P., Nanyang Technological UniversityInventors: Karl DAVIDSON, Po-Ju CHIANG, Matteo SEITA, Kristopher J. ERICKSON, Lihua ZHAO
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Patent number: 12277549Abstract: A blockchain-based transaction system for a green certificate includes an audit node, a proxy node, and an off-chain node. The proxy node is used by a power producer and a purchaser; the audit node verifies qualification information of the power producer, and send a green certificate to the power producer; the off-chain node predicts a transaction price of a next transaction; when receiving sale information of the power producer and purchase information of the purchaser, the proxy node sends the sale information, a digital signature of the power producer, the purchase information, and a digital signature of the purchaser to the off-chain node; the off-chain node matches the sale information and the purchase information, and sends successfully matched transaction information to the proxy node; the proxy node sends the successfully matched transaction information to a transaction smart contract; and the transaction smart contract performs transaction processing.Type: GrantFiled: January 21, 2022Date of Patent: April 15, 2025Assignees: STATE GRID BLOCKCHAIN TECHNOLOGY (BEIJING) CO., LTD., State Grid Digital Technology Holding CO., LTD., State Grid Corporation of ChinaInventors: Dong Wang, Wei Jiang, Da Li, Jiaxing Xuan, Guomin Li, Hejian Wang, Xin Shi, Jiangtao Li, Zhan Su, Lei Zhou, Lihua Zhao, Fan Jia
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Patent number: 12202197Abstract: In one example, a non-transitory processor readable medium having instructions thereon that when executed cause an additive manufacturing machine to expose build material to a light source emitting monochromatic light within a band of wavelengths that includes a peak light absorption of a liquid coalescing agent to be dispensed on to the build material.Type: GrantFiled: January 6, 2020Date of Patent: January 21, 2025Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Krzysztof Nauka, Sivapackia Ganapathiappan, Lihua Zhao, Howard S. Tom, Yan Zhao, Hou T. Ng, James Elmer Abbott, Jr., Alexander Govyadinov, Vladek Kasperchik
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Publication number: 20240424558Abstract: A method of three-dimensional printing can include iteratively applying metal particles having a heat fusion temperature as individual build material layers, and based on a 3D object model, iteratively and selectively applying a metallic binding agent onto the individual build material layers so that the individual build material layers are built up and bound together to form a green-body object. The metallic binding agent includes an aqueous liquid vehicle and metal salt or metal oxide nanoparticles that are thermally reducible to a metal or metal alloy at an elevated metal reducing temperature that is lower than the heat fusion temperature. The method also includes iteratively and selectively applying a polymeric binding agent onto the individual build material layers at an interface between the green-body object and a support structure for the green-body object, leaving a residue at the interface.Type: ApplicationFiled: July 9, 2021Publication date: December 26, 2024Inventors: John Samuel Dilip Jangam, Thomas Anthony, Ben Pon, Lihua Zhao
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Patent number: 12145315Abstract: The present disclosure relates to a three-dimensional printing kit comprising: a powder bed material comprising polymer particles; a fusing agent comprising a radiation absorber and a liquid carrier; and a magnetic marking agent comprising magnetic nanoparticles, a humectant and a liquid carrier, wherein the concentration of magnetic nanoparticles is 5 to 70 weight % based on the total weight of the magnetic agent. The present disclosure also relates to a method of three-dimensional (3D) printing a 3D printed object. The method comprises: selectively applying a magnetic marking agent onto powder bed material, wherein the powder bed material comprises polymer particles, and wherein the magnetic marking agent comprises magnetic nanoparticles and a liquid carrier; selectively fusing the powder bed material, such that the magnetic nanoparticles are incorporated in the 3D printed object in a predetermined arrangement that forms a detectable marker in the 3D printed object.Type: GrantFiled: December 11, 2019Date of Patent: November 19, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Aja Hartman, John Samuel Dilip Jangam, Wei Huang, Thomas Craig Anthony, Gary J Dispoto, Lihua Zhao
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Patent number: 12138685Abstract: A shaping composition for controlling deformation of a green body object during heat fusing can include a liquid vehicle present at from 10 wt % to about 80 wt %, based on a total weight of the shape retaining composition, and a metal particulate mixture present at from about 20 wt % to about 90 wt % based on a total weight of the shaping composition. The metal particulate mixture can include aluminum-containing particulates and secondary metal-containing particulates. The metal particulate mixture can have an aluminum elemental content to secondary metal elemental content atomic ratio of about 10:1 to about 1:2.Type: GrantFiled: March 18, 2019Date of Patent: November 12, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: John Samuel Dilip Jangam, Thomas Anthony, Lihua Zhao
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Publication number: 20240351274Abstract: In an example 3D printing method, an electrical conductivity value for a resistor is identified. Based upon the identified electrical conductivity value, a predetermined amount of a conductive agent is selectively applied to at least a portion of a build material layer in order to introduce a predetermined volume percentage of a conductive material to the resistor. Based upon the identified electrical conductivity value and the predetermined volume percent of the conductive material, a predetermined amount of a resistive agent is selectively applied to the at least a portion of the build material layer in order to introduce a predetermined volume percentage of a resistive material to the resistor. The build material layer is exposed to electromagnetic radiation, whereby the at least the portion coalesces to form a layer of the resistor.Type: ApplicationFiled: June 21, 2024Publication date: October 24, 2024Inventors: Jarrid A. Wittkopf, Kristopher J. Erickson, Lihua Zhao
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Patent number: 12110638Abstract: Disclosed are a corona-resistant N-grade insulation paper for a variable frequency motor and a preparation method thereof. The insulation paper has a sandwich structure, aramid nanofibers and mica nanosheets are taken as a sandwich material of the sandwich structure, aramid nanofibers and silicon carbide nanowires being taken as upper and lower surface layer materials, and three layers of materials are electrostatically sprayed and thermo-compressed to prepare the insulation paper. According to the present disclosure, by introducing mica sheets and the silicon carbide nanowires into the aramid nanofibers, the highly ordered arrangement inside the sandwich structure is realized through electrostatic spraying, which improves the temperature resistance and corona resistance of the insulation paper.Type: GrantFiled: January 26, 2024Date of Patent: October 8, 2024Assignee: Sichuan UniversityInventors: Junwen Ren, Qiuwanyu Qing, Shenli Jia, Lihua Zhao, Zi Wang, Fuli Teng, Guoqing Jiang
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Patent number: 12103073Abstract: A kit for three-dimensional printing a metal object is described. The kit comprises a build material and a shaping composition. The build material comprises metallic particles. The shaping composition comprises a metallic mixture for forming an intermetallic compound with the metallic particles and/or that is exothermically reactive.Type: GrantFiled: October 11, 2019Date of Patent: October 1, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Aja Hartman, John Samuel Dilip Jangam, Lihua Zhao
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Patent number: 12098263Abstract: A composite insulating material based on dielectrophoretic force orientation and its preparation method are provided.Type: GrantFiled: December 21, 2023Date of Patent: September 24, 2024Assignee: SICHUAN UNIVERSITYInventors: Junwen Ren, Zi Wang, Shenli Jia, Lihua Zhao, Huachao Wei, Chao Bian, Guoqing Jiang, Ruichi Zeng
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Publication number: 20240278487Abstract: A three-dimensional (3D) printing build material composition includes polyamide particles and a filler material consisting of aramid fibers having an aspect ratio ranging from about 0.1 mm/20 ?m to about 1.2 mm/16 ?m. The polyamide particles are present in an amount of at least 82 wt % based on a total weight of the build material composition, and the aramid fibers are present in an amount ranging from about 2 wt % to about 18 wt % based on the total weight of the build material composition.Type: ApplicationFiled: June 3, 2021Publication date: August 22, 2024Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY , L.P., NANYANG TECHNOLOGICAL UNIVERSITYInventors: Jiayao CHEN, Kun ZHOU, Lihua ZHAO
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Patent number: 12065607Abstract: A silicone rubber composite heat dissipation pad and a preparation method thereof are provided. The method includes: dispersing hydroxyl-functionalized boron nitride nanosheet powder into deionized water, pouring it into a specialized container, pre-freezing it using liquid nitrogen, and then freeze-drying it to obtain a boron nitride nanosheet skeleton arranged in a horizontal direction; uniformly dispersing thermochromic nanoparticles in acetone to obtain a dispersion, mixing the dispersion with liquid silicone rubber and stirring until acetone is completely evaporated, then adding a curing agent to obtain a liquid silicone rubber pre-cure solution; pouring the liquid silicone rubber pre-cure solution into a container containing the boron nitride nanosheet skeleton, so that the liquid silicone rubber pre-cure solution is fully immersed in an interior of the boron nitride nanosheet skeleton; and then curing is carried out by elevating the temperature to obtain the heat dissipation pad.Type: GrantFiled: December 25, 2023Date of Patent: August 20, 2024Assignee: SICHUAN UNIVERSITYInventors: Junwen Ren, Zi Wang, Shenli Jia, Lihua Zhao, Huachao Wei, Lichuan Jia, Guoqing Jiang, Ruichi Zeng
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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: 12046432Abstract: A vacuum interrupter. The vacuum interrupter comprising at least one anode side contact blade, at least one cathode side contact blade, at least one anode side conducting rod, at least one a cathode side conducting rod, a shielding case and an outer magnet, wherein the shielding case covers the at least one anode side contact blade, the c at least one anode side contact blade, the at least one anode side conducting rod and at least one cathode side conducting rod; and the outer magnet covers the shielding case. According to the vacuum interrupter, the outer magnet is arranged to generate a fixed first longitudinal magnetic field in the interelectrode area of the at least one anode side contact blade and the at least one cathode side contact blade, contraction of arcs during current breaking can be alleviated, the arcs are in a diffusion state, and ablation of the contact in the arcing process is reduced, and breaking capacity of a vacuum circuit breaker is guaranteed.Type: GrantFiled: July 15, 2022Date of Patent: July 23, 2024Assignee: SICHUAN UNIVERSITYInventors: Xiaolong Huang, Xueyan Bai, Weiwei Chen, Haiyi Zhu, Tao Sun, Yuezheng Wu, Guo Hong, Yuhang Xia, Lihua Zhao, Junwen Ren, Wenjun Ning
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Publication number: 20240234058Abstract: The present disclosure relates to a liquid-cooling radiating pipe and a vacuum interrupter with a built-in liquid-cooling radiating pipe, belonging to the field of vacuum circuit breakers. Based on an original structure of an vacuum interrupter, a liquid-cooling radiating pipe of a Tesla valve structure is arranged in a conductive rod of the vacuum interrupter with the built-in liquid-cooling radiating pipe, and liquid metal is used as a circulating coolant in the liquid-cooling radiating pipe, and by using the self-circulating flow of the liquid metal in the pipeline, the capacity of the conductive rod to dissipate heat to the outside is significantly increased, and the problem of excessive internal temperature rise of a vacuum circuit breaker is effectively solved.Type: ApplicationFiled: May 9, 2023Publication date: July 11, 2024Inventors: Xiaolong HUANG, Tao SUN, Yiwei JI, Shangyu YANG, Zhiyun WU, Shuangwei ZHAO, Shenli JIA, Lihua ZHAO, Wenjun NING, Zhong WANG, Junwen REN
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Patent number: 12017406Abstract: In an example 3D printing method, an electrical conductivity value for a resistor is identified. Based upon the identified electrical conductivity value, a predetermined amount of a conductive agent is selectively applied to at least a portion of a build material layer in order to introduce a predetermined volume percentage of a conductive material to the resistor. Based upon the identified electrical conductivity value and the predetermined volume percent of the conductive material, a predetermined amount of a resistive agent is selectively applied to the at least a portion of the build material layer in order to introduce a predetermined volume percentage of a resistive material to the resistor. The build material layer is exposed to electromagnetic radiation, whereby the at least the portion coalesces to form a layer of the resistor.Type: GrantFiled: April 29, 2019Date of Patent: June 25, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jarrid A. Wittkopf, Kristopher J. Erickson, Lihua Zhao
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Publication number: 20240185233Abstract: A blockchain-based transaction system for a green certificate includes an audit node, a proxy node, and an off-chain node. The proxy node is used by a power producer and a purchaser; the audit node verifies qualification information of the power producer, and send a green certificate to the power producer; the off-chain node predicts a transaction price of a next transaction; when receiving sale information of the power producer and purchase information of the purchaser, the proxy node sends the sale information, a digital signature of the power producer, the purchase information, and a digital signature of the purchaser to the off-chain node; the off-chain node matches the sale information and the purchase information, and sends successfully matched transaction information to the proxy node; the proxy node sends the successfully matched transaction information to a transaction smart contract; and the transaction smart contract performs transaction processing.Type: ApplicationFiled: January 21, 2022Publication date: June 6, 2024Inventors: Dong Wang, Wei Jiang, Da Li, Jiaxing Xuan, Guomin Li, Hejian Wang, Xin Shi, Jiangtao Li, Zhan Su, Lei Zhou, Lihua Zhao, Fan Jia
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Patent number: 11987855Abstract: The invention relates to a method and a system for determining the steel-tapping quantity of a converter, which consider that the working environment of the steel-making process of the converter is severe, the measurement is difficult and the interference of other factors is large, and provide a data-driven prediction model based on data, combine a Principal Component Analysis (PCA) with a RBF neural network, find the relation and the internal relation among variables by carrying out mathematical analysis on the related internal structure of the original variables, can quickly and accurately realize the prediction of the steel-tapping quantity of the converter, improve the component hit rate and the product stability in the steel-making process of the converter, are beneficial to realizing the control of narrow regions of steel-making components, save the alloying cost and have good application prospects in the field of ferrous metallurgy.Type: GrantFiled: April 28, 2023Date of Patent: May 21, 2024Assignee: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJINGInventors: Yanping Bao, Ruixuan Zheng, Lihua Zhao
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Patent number: 11981084Abstract: In one example in accordance with the present disclosure, a system is described. The system includes a reader to read an identifier from a storage element associated with a part. An extractor of the system extracts, based on the identifier, lifecycle conditions specific to the part. A controller of the system alters manufacturing operations based on extracted lifecycle conditions for the part.Type: GrantFiled: June 18, 2019Date of Patent: May 14, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kristopher J. Erickson, Jarrid Wittkopf, Rafael Ballagas, David Wayne George, Lihua Zhao, William J. Allen
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Patent number: 11969945Abstract: In one example in accordance with the present disclosure, a system is described. The system includes a reader to 1) read an identifier from a three-dimensional (3D) System printed object that includes a storage element and 2) read a location of the 3D printed object within a build material bed. An extractor of the system extracts, based on the identifier, a post processing operation to execute on the 3D printed object. A controller of the system controls a post processing operation based on extracted post processing operation information and the location.Type: GrantFiled: June 18, 2019Date of Patent: April 30, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kristopher J. Erickson, Jarrid Wittkopf, Rafael Ballagas, David Wayne George, Lihua Zhao, William J. Allen