Patents by Inventor Xiaofeng Du
Xiaofeng Du 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: 20240191330Abstract: A hot-dipped aluminum-zinc or zinc-aluminum-magnesium multiphase steel having a yield strength of greater than or equal to 450 MPa and a rapid heat-treatment hot plating manufacturing method therefor. The steel comprises the following components, in percentage by weight: 0.06-0.12% of C, 0.05-0.30% of Si, 1.0-1.8% of Mn, P?0.015%, S?0.015%, N?0.04%, Cr?0.50%, and further comprises one or both of Ti or Nb, with 0-0.045% of Nb and 0-0.045% of Ti, the balance being Fe and other unavoidable impurities. In addition, the following conditions also need to be met: 0.25?(C+Mn/6)?0.40; Mn/S?150; when no Ti is contained, Nb meets 0.01%?(Nb?0.22C?1.1N)?0.03%; when no Nb is contained, Ti meets 0.3?Ti/C?0.6; and when Ti and Nb are added in a compound mode, 0.03%?(Ti+Nb)?0.07%.Type: ApplicationFiled: March 31, 2022Publication date: June 13, 2024Applicant: BAOSHAN IRON & STEEL CO., LTD.Inventors: Jun LI, Jian WANG, Xiaofeng DU, Zhilong DING, Liyang ZHANG, Huafei LIU, Xiaojian WANG, Yi YANG, Zihao XIE
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Publication number: 20240167140Abstract: A high-formability hot galvanized aluminum-zinc or hot galvanized aluminum-magnesium dual-phase steel having a tensile strength of ?590 MPa and a rapid heat treatment hot dipping fabrication method, the steel comprising the following components in mass percentage: C: 0.045-0.12%; Si: 0.1-0.5%; Mn: 1.0-2.0%; P: ?0.02%; S: ?0.006%; and Al: 0.02-0.055%. The steel may also contain one or two among Cr, Mo, Ti, Nb, and V, wherein the Cr+Mo+Ti+Nb+V?0.5%, and the remainder is Fe and other inevitable impurities. The present invention changes the recovery of a deformed structure, ferrite recrystallization and austenite transformation processes during annealing by means of rapid heat treatment, and the nucleation point of a crystal is increased, grain growth time is shortened, the strength and formability (n90 value) of the material is improved while heat treatment efficiency is improved, which thus extends the performance range of the material.Type: ApplicationFiled: March 31, 2022Publication date: May 23, 2024Applicant: BAOSHAN IRON & STEEL CO., LTD.Inventors: Jian WANG, Jun LI, Liyang ZHANG, Xiaofeng DU, Zhilong DING, Huafei LIU, Yuling REN, Yao DU, Chuanhua LIN, Yi YANG
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Publication number: 20240167130Abstract: Provided are a low-carbon low-alloy Q&P steel or hot-dip galvanized Q&P steel with a tensile strength greater than or equal to 1180 MPa, and a manufacturing method therefor. The steel comprises the chemical components by mass percent: C: 0.16-0.23%, Si: 1.1-2.0%, Mn: 1.6-3.0%, P?0.015%, S?0.005%, Al: 0.02-0.05%; and the steel can further comprise one or two of Cr, Mo, Ti, Nb and V, and Cr+Mo+Ti+Nb+V? 0.5%, and the balance being Fe and other unavoidable impurities. The manufacturing method comprises the processes of smelting, casting, hot rolling, cold rolling, and a rapid heat treatment or a rapid heat treatment hot dip process.Type: ApplicationFiled: March 31, 2022Publication date: May 23, 2024Applicant: BAOSHAN IRON & STEEL CO., LTD.Inventors: Jun LI, Jian WANG, Geng LIU, Junfei WANG, Zhanhong MAO, Xiaofeng DU
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Publication number: 20240167138Abstract: A low-carbon and low-alloy dual-phase steel and hot-dip galvanized dual-phase steel having tensile strength greater than or equal to 980 MPa and a method for manufacturing by means of rapid heat treatment. The steel has the following chemical components in percentage by mass: C: 0.05-0.17%, Si: 0.1-0.7%, Mn: 1.4-2.8%, P?0.020%, S?0.005%, B?0.005%, and Al: 0.02-0.055%, and may further contain two or more of Nb, Ti, Cr, Mo, and V, Cr+Mo+Ti+Nb+V?1.1%, the balance is Fe and other inevitable impurities. The method for manufacturing the steel comprises: smelting, casting, hot rolling, cold rolling and rapid heat treatment procedures. According to the present invention, the recovery, recrystallization and austenite transformation process of a deformed structure is changed, the nucleation rate is increased, the grain growth time is shortened, grains are refined, the strength of the material is improved, and the performance range of the material is expanded.Type: ApplicationFiled: March 31, 2022Publication date: May 23, 2024Applicant: BAOSHAN IRON & STEEL CO., LTD.Inventors: Jian WANG, Jun LI, Liyang ZHANG, Huafei LIU, Junfei WANG, Xiaofeng DU, Wei XIONG, Baoping ZHANG, Fengzhi LU, Zhanhong MAO, Chuang GUAN
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Patent number: 11860994Abstract: A computer implemented method to detect anomalous behavior of a software container having a software application executing therein, the method including receiving a sparse data representation of each of a: first set of container network traffic records; a first set of application traffic records; and a first set of container resource records, and training an hierarchical temporal memory (HTM) for each first set, wherein the container network traffic records correspond to network traffic communicated with the container, the application traffic records correspond to network traffic communicated with the software application, and the container resource records correspond to the use of computer resources by the container; receiving a sparse data representation of each of a: second set of container network traffic records; a second set of application traffic records; and a second set of container resource records; executing the trained HTMs based on each respective second set to determine a degree of recognition oType: GrantFiled: December 3, 2018Date of Patent: January 2, 2024Assignee: British Telecommunications Public Limited CompanyInventors: Xiaofeng Du, Fadi El-Moussa
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Patent number: 11586751Abstract: A computer implemented method for access control for a restricted resource in a computer system, the method including receiving a first set of records for the computer system, each record detailing an occurrence in the computer system during a training time period when the resource is accessed in an approved manner; generating a sparse distributed representation of the set of records to form a training set for a hierarchical temporal memory (HTM); training the HTM based on the training set in order that the trained HTM provides a model of the operation of the computer system during the training time period; receiving a second set of records for the computer system, each record detailing an occurrence in the computer system during an operating time period for the computer system in use by a consumer of the resource; generating a sparse distributed representation of the second set of records to form an input set for the trained HTM; executing the trained HTM based on the input set to determine a degree of recogType: GrantFiled: March 26, 2018Date of Patent: February 21, 2023Assignee: British Telecommunications Public Limited CompanyInventors: Joshua Daniel, Xiaofeng Du
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Patent number: 11341237Abstract: A computer implemented method to detect a computer system in execution operating in a manner that is not compliant with a definition of a set of compliant operations, the method including receiving a first set of records for the computer system, each record detailing an occurrence in the computer system during a first predetermined time period; generating a sparse distributed representation of the set of records to form a training set for a hierarchical temporal memory (HTM); training the HTM based on the training set in order that the trained HTM provides a model of the operation of the computer system during the predetermined time period; selecting at least a subset of operations in the set of compliant operations and causing the invocation of each operation of the subset in the computer system over a second predetermined time period to generate a second set of records of occurrences in the computer system; generating a sparse distributed representation of the set of records to form an input set for the traType: GrantFiled: March 26, 2018Date of Patent: May 24, 2022Assignee: British Telecommunications Public Limited CompanyInventors: Joshua Daniel, Xiaofeng Du
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Publication number: 20220139709Abstract: A method of manufacturing an electronic device is provided. The method includes forming a dielectric layer on a Si-based substrate, etching away portions of the dielectric layer to form a crisscrossing grid pattern of remaining portions of the dielectric layer and to expose the substrate in areas where the dielectric layer is removed, forming GaN-based layers on the substrate in growth areas between sidewalls of the remaining portions of the dielectric layer, and forming a semiconductor device on the GaN-based layers.Type: ApplicationFiled: November 5, 2020Publication date: May 5, 2022Inventors: Ko-Tao Lee, Shawn Xiaofeng Du, Ning Li, Xin Zhang
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Publication number: 20210168164Abstract: A computer implemented method to detect an anomalous change to a web application configuration, the web application executing with a web server, the method including receiving a first set of records for the web application operating in a training mode of operation, each record including characteristics of the web application; generating a sparse distributed representation of the set of records to form a training set for a hierarchical temporal memory (HTM); training the HTM based on the training set in order that the trained HTM provides a model of the operation of the web application in the training mode of operation; receiving a second set of records for the web application, each record including characteristics of the web application; generating a sparse distributed representation of the second set of records to form an input set for the trained HTM; executing the trained HTM based on the input set to determine a degree of recognition of the records of the input set; and responsive to a determination thatType: ApplicationFiled: July 30, 2018Publication date: June 3, 2021Inventors: Fadi EL-MOUSSA, Xiaofeng DU
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Patent number: 10995380Abstract: A press hardening steel by a thin slab casting and direct rolling has a tensile strength of 1500 MPa or more. The press hardening steel has a components by weight percent: C: 0.21-0.25%, Si: 0.26-0.30%, Mn: 1.0-1.3%, P?0.01%, S?0.005%, Als: 0.015-0.060%, Cr: 0.25-0.30%, Ti: 0.026-0.030% or Nb: 0.026-0.030% or V: 0.026-0.030%, or a mixture of two or more of the above in any proportion; B: 0.003-0.004%, and N?0.005%. A method for producing the press hardening steel includes following steps: hot metal desulphurization; electric-furnace or converter smelting and refining; continuous casting; descaling, then entering a soaking furnace; heating and soaking; high-pressure water descaling, then entering a rolling mill; hot rolling; cooling; coiling; austenitizing; die deforming and quenching.Type: GrantFiled: August 1, 2017Date of Patent: May 4, 2021Assignee: WUHAN IRON AND STEEL COMPANY LIMITEDInventors: Xinping Mao, Kuanhui Hu, Shuize Wang, Libo Pan, Rui Ge, Lijun Li, Tao Peng, Xiaofeng Du, Wenqiang Zhou
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Patent number: 10988820Abstract: A press hardening steel by a medium thin slab and having a tensile strength of 1500 MPa or more, includes following components by weight percent: C: 0.21%-0.25%, Si: 0.26%-0.30%, Mn: 1.0%-1.3%, P?0.01%, S?0.005%, Als: 0.015%-0.060%, Cr: 0.25%-0.30%, Ti: 0.026%-0.030% or Nb: 0.026%-0.030% or V: 0.026%-0.030% or a mixture of any two or more of the above in any proportion, B: 0.003%-0.004%, Mo: 0.17-0.19% and N?0.005%. A method for producing the press hardening steel includes following steps: molten iron desulphurization; smelting and refining by an electric furnace or converter; continuous casting; descaling treatment before entering a soaking furnace; hating and soaking; high pressure water descaling before entering a rolling mill; hot rolling; cooling; coiling; austenitizing; die deforming and quenching.Type: GrantFiled: August 1, 2017Date of Patent: April 27, 2021Assignee: WUHAN IRON AND STEEL COMPANY LIMITEDInventors: Xinping Mao, Kuanhui Hu, Shuize Wang, Libo Pan, Rui Ge, Lijun Li, Tao Peng, Xiaofeng Du, Fang Fang
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Publication number: 20210089670Abstract: A computer implemented method for access control for a restricted resource in a computer system, the method including receiving a first set of records for the computer system, each record detailing an occurrence in the computer system during a training time period when the resource is accessed in an approved manner; generating a sparse distributed representation of the set of records to form a training set for a hierarchical temporal memory (HTM); training the HTM based on the training set in order that the trained HTM provides a model of the operation of the computer system during the training time period; receiving a second set of records for the computer system, each record detailing an occurrence in the computer system during an operating time period for the computer system in use by a consumer of the resource; generating a sparse distributed representation of the second set of records to form an input set for the trained HTM; executing the trained HTM based on the input set to determine a degree of recogType: ApplicationFiled: March 26, 2018Publication date: March 25, 2021Applicant: British Telecommunications Public Limited CompanyInventors: Joshua Daniel, Xiaofeng Du
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Publication number: 20210089650Abstract: A computer implemented method to detect a computer system in execution operating in a manner that is not compliant with a definition of a set of compliant operations, the method including receiving a first set of records for the computer system, each record detailing an occurrence in the computer system during a first predetermined time period; generating a sparse distributed representation of the set of records to form a training set for a hierarchical temporal memory (HTM); training the HTM based on the training set in order that the trained HTM provides a model of the operation of the computer system during the predetermined time period; selecting at least a subset of operations in the set of compliant operations and causing the invocation of each operation of the subset in the computer system over a second predetermined time period to generate a second set of records of occurrences in the computer system; generating a sparse distributed representation of the set of records to form an input set for the traType: ApplicationFiled: March 26, 2018Publication date: March 25, 2021Applicant: British Telecommunications Public Limited CompanyInventors: Joshua Daniel, Xiaofeng Du
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Patent number: 10886328Abstract: An approach to forming a full color micro-display that includes using a plurality of micro-light emitting diodes formed in a silicon on insulator substrate, where the plurality of micro-light emitting diodes include a plurality of red micro-light emitting diodes, a plurality of green micro-light emitting diodes, and a plurality of blue micro-light emitting diodes. Additionally, the approach includes forming a plurality of transistor devices in the silicon on insulator substrate, wherein each transistor device of the plurality of transistor devices acts as a switch connecting to a micro-light emitting diode of the plurality of micro-light emitting diodes.Type: GrantFiled: December 2, 2019Date of Patent: January 5, 2021Assignee: International Business Machines CorporationInventors: Ning Li, Ko-Tao Lee, Shawn Xiaofeng Du
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Publication number: 20200387599Abstract: A computer implemented method to detect anomalous behavior of a software container having a software application executing therein, the method including receiving a sparse data representation of each of a: first set of container network traffic records; a first set of application traffic records; and a first set of container resource records, and training an hierarchical temporal memory (HTM) for each first set, wherein the container network traffic records correspond to network traffic communicated with the container, the application traffic records correspond to network traffic communicated with the software application, and the container resource records correspond to the use of computer resources by the container; receiving a sparse data representation of each of a: second set of container network traffic records; a second set of application traffic records; and a second set of container resource records; executing the trained HTMs based on each respective second set to determine a degree of recognition oType: ApplicationFiled: December 3, 2018Publication date: December 10, 2020Inventors: Xiaofeng DU, Fadi EL-MOUSSA
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Patent number: 10769292Abstract: Computer implemented methods for access control for a restricted resource in a computer system and related methods train a hierarchical temporal memory and use cryptocurrency allocations and blockchain records to determine whether resource consumers are authorized or unauthorized to access the restricted resource.Type: GrantFiled: March 29, 2018Date of Patent: September 8, 2020Assignee: British Telecommunications Public Limited CompanyInventors: Joshua Daniel, Xiaofeng Du, Gery Ducatel
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Publication number: 20200228569Abstract: A computer implemented method to detect an anomalous change to a web application, the web application executing with a web server, the method including receiving a first set of records for the web application operating in a training mode of operation, each record including characteristics of a content of a web page for the web application; generating a sparse distributed representation of the set of records to form a training set for a hierarchical temporal memory (HTM); training the HTM based on the training set in order that the trained HTM provides a model of the operation of the web application in the training mode of operation; receiving a second set of records for the web application, each record including characteristics of content of the web page; generating a sparse distributed representation of the second set of records to form an input set for the trained HTM; executing the trained HTM based on the input set to determine a degree of recognition of the records of the input set; and responsive to a dType: ApplicationFiled: July 30, 2018Publication date: July 16, 2020Inventors: Fadi EL-MOUSSA, Xiaofeng DU
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Publication number: 20190185952Abstract: A press hardening steel by a thin slab casting and direct rolling has a tensile strength of 1500 MPa or more. The press hardening steel has a components by weight percent: C: 0.21-0.25%, Si: 0.26-0.30%, Mn: 1.0-1.3%, P?0.01%, S?0.005%, Als: 0.015-0.060%, Cr: 0.25-0.30%, Ti: 0.026-0.030% or Nb: 0.026-0.030% or V: 0.026-0.030%, or a mixture of two or more of the above in any proportion; B: 0.003-0.004%, and N?0.005%. A method for producing the press hardening steel includes following steps: hot metal desulphurization; electric-furnace or converter smelting and refining; continuous casting; descaling, then entering a soaking furnace; heating and soaking; high-pressure water descaling, then entering a rolling mill; hot rolling; cooling; coiling; austenitizing; die deforming and quenching.Type: ApplicationFiled: August 1, 2017Publication date: June 20, 2019Applicant: WUHAN IRON AND STEEL COMPANY LIMITEDInventors: Xinping MAO, Kuanhui HU, Shuize WANG, Libo PAN, Rui GE, Lijun LI, Tao PENG, Xiaofeng DU, Wenqiang ZHOU
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Publication number: 20190177811Abstract: A press hardening steel by a medium thin slab and having a tensile strength of 1500 MPa or more, includes following components by weight percent: C: 0.21%-0.25%, Si: 0.26%-0.30%, Mn: 1.0%-1.3%, P?0.01%, S?0.005%, Als: 0.015%-0.060%, Cr: 0.25%-0.30%, Ti: 0.026%-0.030% or Nb: 0.026%-0.030% or V: 0.026%-0.030% or a mixture of any two or more of the above in any proportion, B: 0.003%-0.004%, Mo: 0.17-0.19% and N?0.005%. A method for producing the press hardening steel includes following steps: molten iron desulphurization; smelting and refining by an electric furnace or converter; continuous casting; descaling treatment before entering a soaking furnace; hating and soaking; high pressure water descaling before entering a rolling mill; hot rolling; cooling; coiling; austenitizing; die deforming and quenching.Type: ApplicationFiled: August 1, 2017Publication date: June 13, 2019Applicant: Wuhan Iron and Steel Company LimitedInventors: Xinping MAO, Kuanhui HU, Shuize WANG, Libo PAN, Rui GE, Lijun LI, Tao PENG, Xiaofeng DU, Fang FANG
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Publication number: 20190169708Abstract: A press hardening steel by a medium and thin slab casting and direct rolling has a tensile strength 1900 MPa or more. The press hardening steel includes following chemical components by weight percent: C: 0.31-0.40%, Si: 0.36-0.44%, Mn: 1.6-2.0%, P?0.006%, S?0.004%, Als: 0.015-0.060%, Cr: 0.36-0.49%, Ti: 0.036-0.045% or Nb: 0.036-0.045% or V: 0.036-0.045%, or a mixture of the above two or more in any ratio, B: 0.004-0.005%, Mo: 0.26-0.35%, Ni: 0.11-0.20%, and N?0.005%. A method for producing the press hardening steel includes following steps: desulphurizing molten iron; electric furnace or converter smelting and refining; continuous casting; descaling treatment before entering a soaking furnace; heating and soaking; high-pressure water descaling before entering a rolling mill; hot rolling; cooling; coiling; austenitizing; die deforming and quenching.Type: ApplicationFiled: August 1, 2017Publication date: June 6, 2019Applicant: WUHAN IRON AND STEEL COMPANY LIMITEDInventors: Xinping MAO, Shuize WANG, Kuanhui HU, Libo PAN, Rui GE, Lijun LI, Tao PENG, Xiaoping DUAN, Xiaofeng DU