Patents by Inventor Qifeng Zhang
Qifeng 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).
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Patent number: 12262728Abstract: Disclosed in the present invention is a control method for water supply during loosening and conditioning based on a neural network model and a dual parameter correction. The method comprises: establishing a neural network-based model for predicting the amount of water supplied during loosening and conditioning; predicting and distributing the total water supplied; and correcting the model based on material balance calculation and deviation. In the present application, when there is a large deviation in outlet moisture, the dual correction control system combining the material balance calculation and the moisture deviation is used for correction to improve the stability and precise control of the outlet moisture during the loosening and conditioning process.Type: GrantFiled: July 27, 2022Date of Patent: April 1, 2025Assignee: Zhangjiakou Cigarette Factory Co., Ltd.Inventors: Zijuan Li, Jiaojiao Chen, Shuo Sun, Wangchang Miao, Yang Gao, Zixian Feng, Liyuan Zhao, Yanling Ma, Bo Liu, Ting Fang, Xiaohui Jia, Zheng Zhou, Yanshu Ma, Jichao Guo, Qiao Su, Qifeng Zhang, Tingting Wu, Huixia Yang, Haiyang Zhao, Suyan Li
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Publication number: 20250087686Abstract: The present application discloses a lithium-ion secondary battery. The lithium-ion secondary battery. The lithium-ion secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte. The positive electrode plate includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes nickel, cobalt, and manganese material. A ratio of nickel, cobalt and manganese is a:b:c, a?0.5, 0<b?0.2, a+b+c=1. An interval particle size distribution curve of the positive electrode active material has a full width at half maximum DFW of from 4 ?m to 8 ?m, and the positive electrode active material has a powder compaction density of from 3.0 g/cm3 to 3.6 g/cm3 under a pressure of 3 tons.Type: ApplicationFiled: November 22, 2024Publication date: March 13, 2025Inventors: Qifeng LI, Qilan ZHANG, Na Liu
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Patent number: 12225700Abstract: A display panel, a display module and a manufacture method thereof, and a communication device are provided. The display panel includes a display substrate and a multiplexing circuit arranged on a first surface of the display substrate. The display panel further includes a wave-absorbing material layer arranged on a second surface of the display substrate. The wave-absorbing material layer is configured to absorb electromagnetic wave interference signals. The second surface is a surface opposite to the first surface.Type: GrantFiled: January 22, 2024Date of Patent: February 11, 2025Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chao Wang, Binfeng Feng, Yonghui Luo, Fei Li, Yupeng Chen, Jiaxiang Wang, Zijie Zhang, Qifeng Li
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Patent number: 11672440Abstract: Disclosed herein is a device detecting volatile organic compounds, such as acetone, using nanostructured K2W7O22 crystals. Methods for detecting a subject in a state of ketosis, such as diabetes, using a volatile organic sensing device are disclosed. A method for synthesizing K2W7O22 nanostructured sensing crystals is further disclosed.Type: GrantFiled: September 5, 2019Date of Patent: June 13, 2023Assignee: NDSU RESEARCH FOUNDATIONInventors: Danling Wang, Qifeng Zhang
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Publication number: 20230067754Abstract: Disclosed in the present invention is a control method for water supply during loosening and conditioning based on a neural network model and a dual parameter correction. The method comprises: establishing a neural network-based model for predicting the amount of water supplied during loosening and conditioning; predicting and distributing the total water supplied; and correcting the model based on material balance calculation and deviation. In the present application, when there is a large deviation in outlet moisture, the dual correction control system combining the material balance calculation and the moisture deviation is used for correction to improve the stability and precise control of the outlet moisture during the loosening and conditioning process.Type: ApplicationFiled: July 27, 2022Publication date: March 2, 2023Inventors: Zijuan Li, Jiaojiao Chen, Shuo Sun, Wangchang Miao, Yang Gao, Zixian Feng, Liyuan Zhao, Yanling Ma, Bo Liu, Ting Fang, Xiaohui Jia, Zheng Zhou, Yanshu Ma, Jichao Guo, Qiao Su, Qifeng Zhang, Tingting Wu, Huixia Yang, Haiyang Zhao, Suyan Li
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Publication number: 20200077923Abstract: Disclosed herein is a device detecting volatile organic compounds, such as acetone, using nanostructured K2W7O22 crystals. Methods for detecting a subject in a state of ketosis, such as diabetes, using a volatile organic sensing device are disclosed. A method for synthesizing K2W7O22 nanostructured sensing crystals is further disclosed.Type: ApplicationFiled: September 5, 2019Publication date: March 12, 2020Inventors: Danling WANG, Qifeng ZHANG
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Patent number: 9755686Abstract: A method for preparing an alloy encapsulation mobile phone protective case is provided, which includes steps of: selecting an alloy material as an edging material; CNC machining; making a surface treatment; drying; spraying and molding for shaping. The alloy encapsulated mobile phone protective case is formed after shaping the alloy outer frame and the soft rubber inner molding layer, which not only simplifies the assembly, but also strengthens the strength and hardness of the structure, thus effectively avoiding the splitting phenomenon caused by strong impact. Due to the combination of the alloy material with the soft rubber inner molding layer, the protective case has a certain flexibility, abrasion resistance, high strength and high formability. The rigidity of the protective case is in a range from 50° to 90°and has strong resilient force and curvature, which not only can effectively protect the mobile phone, but also has long service life.Type: GrantFiled: July 2, 2015Date of Patent: September 5, 2017Assignee: Shenzhen Qilixin Plastic Precision Mould Co., Ltd.Inventor: Qifeng Zhang
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Publication number: 20160006474Abstract: A method for preparing an alloy encapsulation mobile phone protective case is provided, which includes steps of: selecting an alloy material as an edging material; CNC machining; making a surface treatment; drying; spraying and molding for shaping. The alloy encapsulated mobile phone protective case is formed after shaping the alloy outer frame and the soft rubber inner molding layer, which not only simplifies the assembly, but also strengthens the strength and hardness of the structure, thus effectively avoiding the splitting phenomenon caused by strong impact. Due to the combination of the alloy material with the soft rubber inner molding layer, the protective case has a certain flexibility, abrasion resistance, high strength and high formability. The rigidity of the protective case is in a range from 50° to 90°and has strong resilient force and curvature, which not only can effectively protect the mobile phone, but also has long service life.Type: ApplicationFiled: July 2, 2015Publication date: January 7, 2016Inventor: Qifeng Zhang
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Patent number: 8673216Abstract: The invention provides devices, systems, and methods for detecting an analyte vapor. Particularly, electronegative analyte vapors, such as those vapors evolving from explosive compounds, are typical analytes detected the devices. The devices operate using a resistivity change mechanism wherein a nanostructured chemiresistive material undergoes a resistivity change in the presence of an analyte vapor. A resistivity change indicates the presence of an analyte.Type: GrantFiled: December 3, 2010Date of Patent: March 18, 2014Assignee: The University of WashingtonInventors: Antao Chen, Danling Wang, Qifeng Zhang, Guozhong Cao
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Patent number: 8558107Abstract: Provided are a novel ZnO dye-sensitized solar cell and method of fabricating the same. In one embodiment, deliberately added lithium ions are used to mediate the growth of ZnO aggregates. The use of lithium provides ZnO aggregates that have advantageous microstructure, morphology, crystallinity, and operational characteristics. Employing lithium during aggregate synthesis results in a polydisperse collection of ZnO aggregates favorable for porosity and light scattering. The resulting nanocrystallites forming the aggregates have improved crystallinity and more favorable facets for dye molecule absorption. The lithium synthesis improves the surface stability of ZnO in acidic dyes. The procedures developed and disclosed herein also help ensure the formation of an aggregate film that has a high homogeneity of thickness, a high packing density, a high specific surface area, and good electrical contact between the film and the fluorine-doped tin oxide electrode and among the aggregate particles.Type: GrantFiled: February 4, 2011Date of Patent: October 15, 2013Assignee: University of WashingtonInventors: Qifeng Zhang, Guozhong Cao
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Publication number: 20120208313Abstract: Methods for forming aggregates of nanomaterials are provided. The aggregates are formed from a liquid dispersion of the nanomaterials in a liquid. The dispersion is aerosolized and the liquid removed from the aerosolized dispersion to provide the aggregates. The aggregates are useful as a photoelectric layer and/or a light-dispersive layer in dye-sensitized solar cells.Type: ApplicationFiled: January 30, 2012Publication date: August 16, 2012Applicant: UNIVERSITY OF WASHINGTONInventors: Guozhong Cao, Qifeng Zhang, Junting Xi
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Publication number: 20120152336Abstract: Aggregate particles comprising titanium dioxide (TiO2) nanotubes, methods for making the aggregate particles, photoelectrodes for solar cells including aggregate particles of nanomaterials, methods for making the photoelectrodes, and solar cells that include the photoelectrodes.Type: ApplicationFiled: December 15, 2011Publication date: June 21, 2012Applicants: PACIFIC NORTHWEST NATIONAL LABORATORY, UNIVERSITY OF WASHINGTONInventors: Guozhong Cao, Xiaoyuan Zhou, Jun Liu, Zimin Nie, Qifeng Zhang
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Publication number: 20110162708Abstract: Provided are a novel ZnO dye-sensitized solar cell and method of fabricating the same. In one embodiment, deliberately added lithium ions are used to mediate the growth of ZnO aggregates. The use of lithium provides ZnO aggregates that have advantageous microstructure, morphology, crystallinity, and operational characteristics. Employing lithium during aggregate synthesis results in a polydisperse collection of ZnO aggregates favorable for porosity and light scattering. The resulting nanocrystallites forming the aggregates have improved crystallinity and more favorable facets for dye molecule absorption. The lithium synthesis improves the surface stability of ZnO in acidic dyes. The procedures developed and disclosed herein also help ensure the formation of an aggregate film that has a high homogeneity of thickness, a high packing density, a high specific surface area, and good electrical contact between the film and the fluorine-doped tin oxide electrode and among the aggregate particles.Type: ApplicationFiled: February 4, 2011Publication date: July 7, 2011Applicant: UNIVERSITY OF WASHINGTONInventors: Qifeng Zhang, Guozhong Cao
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Publication number: 20110151574Abstract: The invention provides devices, systems, and methods for detecting an analyte vapor. Particularly, electronegative analyte vapors, such as those vapors evolving from explosive compounds, are typical analytes detected the devices. The devices operate using a resistivity change mechanism wherein a nanostructured chemiresistive material undergoes a resistivity change in the presence of an analyte vapor. A resistivity change indicates the presence of an analyte.Type: ApplicationFiled: December 3, 2010Publication date: June 23, 2011Applicant: University of WashingtonInventors: Antao Chen, Danling Wang, Qifeng Zhang, Guozhong Cao
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Patent number: D867803Type: GrantFiled: January 12, 2018Date of Patent: November 26, 2019Inventors: Qifeng Zhang, Zhiyong Li
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Patent number: D887389Type: GrantFiled: October 16, 2018Date of Patent: June 16, 2020Inventor: Qifeng Zhang
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Patent number: D952894Type: GrantFiled: September 20, 2020Date of Patent: May 24, 2022Assignee: Shenzhen Qilixin Plastic Precision Mould Co., Ltd.Inventor: Qifeng Zhang