Patents by Inventor Chao Gao
Chao Gao 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: 20160111898Abstract: The present invention provides a fast charging method for battery, including the steps as follows: (1) the battery is charged with a constant current I1 and the charging time is t1; (2) the battery is charged with a constant current I2 and the charging time is t2; (3) the battery is discharged with the constant current I2 and the discharging time is t3, recycling until the voltage reaches a pre-charging voltage of battery; (4) the battery is standed after the voltage reaching the pre-charging voltage of battery, and the rest time is t4, and then the battery is charged with a constant current I3 until the voltage reaching a cut-off voltage of battery, and then the battery is charged with a constant voltage until the current reaching a cut-off current I4; wherein, I2<I1, t2<t1, t3<t1, I2<I3?I1, I4?I2.Type: ApplicationFiled: July 27, 2015Publication date: April 21, 2016Applicant: Dongguan Amperex Technology LimitedInventors: Fuping LUO, Yu LUO, Shengwei WANG, Chao GAO, Qiang ZHENG
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Patent number: 9318962Abstract: A switching mode power supply (SMPS) includes a transformer having a primary winding for coupling to an input power source, a secondary winding for providing an output voltage of the SMPS, and an auxiliary winding. The SMPS also has a power transistor coupled to the primary winding and a primary side control circuit coupled to the auxiliary winding and the power transistor. The primary side control circuit is configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal that is representative of an output of the SMPS. The SMPs also has a secondary-side control circuit coupled to the secondary winding and being configured to cause the output voltage of the SMPS to discharge when the output voltage of the SMPS is higher than a first reference voltage.Type: GrantFiled: December 7, 2012Date of Patent: April 19, 2016Assignee: BCD Semiconductor Manufacturing LimitedInventors: Chao Gao, Pingan Zhao, Chao Chen
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Publication number: 20160104880Abstract: A rapid charge lithium-ion battery comprises a positive plate, a negative plate, a separator disposed at intervals between the positive plate and the negative plate, and an electrolyte. The positive plate includes a positive current collector and a positive active material layer disposed on a surface of the positive current collector; the positive active material layer includes a positive active material, a positive conductive agent and a positive adhesive; the positive active material includes a component A and a component B; the component A is selected from at least one of lithium nickel cobalt aluminum oxide (NCA), lithium nickel cobalt manganese oxide (NCM), lithium manganese oxide (LMO) and lithium cobalt oxide (LiCoO2); the component B is selected from at least one of lithium iron phosphate (LFP) and lithium titanium oxide (LTO); and the component B accounts for 5 to 90 percent by mass of the positive active material.Type: ApplicationFiled: October 13, 2015Publication date: April 14, 2016Inventors: Chao GAO, Shengwei WANG, Jie CHEN, Fuping LUO, Qiang ZHENG, Hongguang SHEN
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Publication number: 20160093912Abstract: The present invention provides a lithium-ion battery. The lithium-ion battery includes: a positive electrode plate including a positive current collector and a positive conductive membrane which is formed on the surface of the positive current collector by coating, drying and compacting a positive mixture slurry containing a positive active material, a positive conductive additive and a positive binder; a negative electrode plate including a negative current collector and a negative conductive membrane which is formed on the surface of the negative current collector by coating, drying and compacting a negative mixture slurry containing a negative active material, a negative conductive additive and a negative binder; a separator; an electrolyte; and a packaging foil. The compacted density of the positive conductive membrane is at a range from 3.9 g/cm3 to 4.4 g/cm3; the compacted density of negative conductive membrane is at a range from 1.55 g/cm3 to 1.Type: ApplicationFiled: July 27, 2015Publication date: March 31, 2016Applicant: Dongguan Amperex Technology LimitedInventors: Qiang ZHENG, Shengwei Wang, Chao Gao, Fuping Luo
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Publication number: 20150237342Abstract: A method of starting a camera, a user equipment and a storage medium are provided. A memory in the user equipment is additionally utilized to store calibrated OTP data therein so that the calibrated OTP data stored in the memory can be written directly into a register of an optical sensor of the camera each time the user equipment accesses the camera to thereby avoid OTP data calibration each time the user equipment accesses the camera, and shorten a period of time for the user equipment to access the camera and a period of time for the camera to start while avoiding an overly amount of calibration calculations, lowering a load on a kernel of the user equipment and improving the experience of a user.Type: ApplicationFiled: April 18, 2014Publication date: August 20, 2015Applicant: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY CO., LTD.Inventors: Chao GAO, Xudong QIU, Sanfeng YAN, Changsheng ZHOU, Peng JIANG
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Publication number: 20150104642Abstract: A graphene composite fiber includes graphene sheets and a polymer for aggregating the graphene sheets together. The polymer includes either or both of a hyperbranched polymer and polyvinyl alcohol. The graphene sheets and the polymer are stacked on each other to form a layered structure, and the graphene sheets are regularly arranged along an axial direction of the graphene composite fiber. In a production method of the graphene composite fiber, a graphene oxide is used as a raw material, which significantly improves tensile strength of the graphene composite fiber. Addition of the polymer provides good tenacity for the composite fiber. In a spinning process, rotated coagulant is used to increase a tensile force of a gelatinous fiber, so that the gelatinous fiber has high orientation and tacticity, thereby significantly improving strength of an obtained solid fiber. The final reduction process restores electrical conductivity of a graphene fairly well.Type: ApplicationFiled: December 19, 2014Publication date: April 16, 2015Inventors: Chao GAO, Xiaozhen HU, Xiaosong ZHOU, Yan XU
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Publication number: 20150093572Abstract: A graphene fiber and a preparation method thereof, where the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, and principal components of the composite fiber are graphene and metal nanowires, a mass ratio of metal nanowires is 0.1%-50%, the graphene is in a form of sheet, and both the metal nanowires and graphene sheets are arranged in parallel along an axial direction of the graphene fiber. The metal nanowire doped graphene fiber is a new type of a high performance multi-functional fiber material, which achieves a significant improvement in electrical conductivity of graphene fibers through doping of metal nanowires and meanwhile demonstrates excellent tensile strength and toughness. The metal nanowire doped graphene fiber has great potential application value in a plurality of fields, for example, it is used as a lightweight flexible wire.Type: ApplicationFiled: December 3, 2014Publication date: April 2, 2015Inventors: Xiaosong ZHOU, Yan XU, Chao GAO, Zhen XU
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Patent number: 8916688Abstract: The invention relates to an insecticidal protein, its gene encoding and the uses thereof. The protein comprises: (a) a protein consisting of an amino acid sequence shown by SEQ ID NO:2 or a sequence of amino acid residuses at positions 1 to 640 thereof; or (b) a protein derived from (a) by substitution, deletion, or addition of one or more amino acid residuses of the amino acid sequences in (a), and having insecticidal activity; or (c) a protein generated by the expression of nucleic acid molecules containing a sequence of amino acid residuses at the positions 1 to 1920 of SEQ ID NO:1; or (d) a protein generated by the expression of nucleic acid molecules containing a complementary sequence that hybridized with the sequence of nucleotides at the positions 1 to 1920 of SEQ ID NO:1 under stringent conditions. The protein has high expression level and strong toxicity against pests.Type: GrantFiled: March 18, 2013Date of Patent: December 23, 2014Assignees: Beijing Green Agrosino Plant Protection Technology Co., Ltd., Beijing Dabeinong Technology Group Co., Ltd., Biotech Center, Beijing Dabeinong Technology Group Co., Ltd.Inventors: Aihong Zhang, Jie Pang, Ruiqi Niu, Lihong Niu, Chao Gao, Mengmeng Miao, Donghai Yang
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Patent number: 8891259Abstract: A control circuit is configured for controlling a power switch to regulate an output of a power converter. The control circuit is configured to increase a switching frequency of the power switch when a first signal representing a magnitude of the power converter is below a first output level. In some embodiment, the first output level is selected such that when the first signal is below the first output level, the power converter may generate audible noise. In an embodiment, when the first signal is above the first output level, the control circuit is configured to turn off the power switch when a second signal representing a current in the power switch is above a first reference level. On the other hand, when the first signal is below the first output level, the control circuit is configured to turn off the power switch if the second signal reaches a lower reference level.Type: GrantFiled: August 5, 2011Date of Patent: November 18, 2014Assignee: BCD Semiconductor Manufacturing LimitedInventors: PingAn Zhao, Huizhen Zhu, Hu Wang, Chao Gao
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Patent number: 8765632Abstract: A process for preparing a catalyst comprising palladium supported on a carrier via a layered precursor, comprising the following steps: (1) synthesis of hydrotalcite layered precursor which comprises promoting metal element and aluminium on the surface of the carrier of A12O3 microspheres, the atoms of the promoting metal and aluminium being highly dispersed by each other and bonded firmly to the carrier due to the crystal lattice positioning effect of the hydrotalcite crystal; (2) introduction of palladium into the carrier through impregnation; (3) drying; and (4) calcination and reduction with H2, the hydrotalcite layered precursor being converted into a composite oxide which consists of oxides of the promoting metal and aluminium, and the promoting metal element and aluminium being highly dispersed by each other and being able to separate and disperse the mainly active palladium element loaded later.Type: GrantFiled: June 25, 2009Date of Patent: July 1, 2014Assignee: Beijing University of Chemical TechnologyInventors: Fazhi Zhang, Peng Chen, Rong Hou, Jiali Chen, Chao Gao, Hui Zhang, Dianqing Li, Feng Li, Xue Duan
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Patent number: 8650717Abstract: A processing line of bast fiber is provided. The processing line is comprised of various devices for carding, cutting, degumming, high temperature washing, separating and water washing, softening, drying, batching and applying oil, permeating and reconditioning, stretching-breaking carding, and combing and sorting. The processing line of bast fiber can improve production efficiency, and improve the yield of long hemp fibers. Moreover, the produced fiber has stable quality and is convenient for post-processing.Type: GrantFiled: January 21, 2011Date of Patent: February 18, 2014Assignees: China-Hemp Industrial Investment Holdings Co., Ltd., The Quartermaster Research Institute of the General Logistics Department of the CPLA, Ningbo Yak Technology Industrial Co., Ltd.Inventors: Xinmin Hao, Guojun Zhang, Mingzhai Gao, Meijun Qiu, Chao Gao, Minzhu Ning
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Publication number: 20140037609Abstract: The invention relates to an insecticidal protein, its gene encoding and the uses thereof. The protein comprises: (a) a protein consisting of an amino acid sequence shown by SEQ ID NO:2 or a sequence of amino acid residuses at positions 1 to 640 thereof; or (b) a protein derived from (a) by substitution, deletion, or addition of one or more amino acid residuses of the amino acid sequences in (a), and having insecticidal activity; or (c) a protein generated by the expression of nucleic acid molecules containing a sequence of amino acid residuses at the positions 1 to 1920 of SEQ ID NO:1; or (d) a protein generated by the expression of nucleic acid molecules containing a complementary sequence that hybridized with the sequence of nucleotides at the positions 1 to 1920 of SEQ ID NO:1 under stringent conditions. The protein has high expression level and strong toxicity against pests.Type: ApplicationFiled: March 18, 2013Publication date: February 6, 2014Inventors: AIHONG ZHANG, Jie Pang, Ruiqi Niu, Lihong Niu, Chao Gao, Mengmeng Miao, Donghai Yang
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Publication number: 20140016375Abstract: A switching mode power supply (SMPS) includes a transformer having a primary winding for coupling to an input power source, a secondary winding for providing an output voltage of the SMPS, and an auxiliary winding. The SMPS also has a power transistor coupled to the primary winding and a primary side control circuit coupled to the auxiliary winding and the power transistor. The primary side control circuit is configured to regulate the output of the SMPS by controlling the power switch in response to a feedback voltage signal that is representative of an output of the SMPS. The SMPs also has a secondary-side control circuit coupled to the secondary winding and being configured to cause the output voltage of the SMPS to discharge when the output voltage of the SMPS is higher than a first reference voltage.Type: ApplicationFiled: December 7, 2012Publication date: January 16, 2014Applicant: BCD Semiconductor Manufacturing LimitedInventors: CHAO GAO, PINGAN ZHAO, CHAO CHEN
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Patent number: 8574318Abstract: A process for preparing an optical colored polyester film using microwave technique comprises the following steps: microwave dyeing treatment by passing a polyester film through a disperse dye suspension with a steady water phase in a dye-pool comprising a microwave generator; rinsing with water; rinsing with solvent; finally drying treatment, and then uniform optical colored films with various colors are obtained. The optical colored films are used as optical filters or optical protection films and as glass window films for automobile, and domestic and office windows.Type: GrantFiled: August 12, 2010Date of Patent: November 5, 2013Inventors: Bo Peng, Wei Wei, Chao Gao
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Publication number: 20120324677Abstract: A processing line of bast fiber is provided. The processing line is comprised of various devices for carding, cutting, degumming, high temperature washing, separating and water washing, softening, drying, batching and applying oil, permeating and reconditioning, stretching-breaking carding, and combing and sorting. The processing line of bast fiber can improve production efficiency, and improve the yield of long hemp fibers. Moreover, the produced fiber has stable quality and is convenient for post-processing.Type: ApplicationFiled: January 21, 2011Publication date: December 27, 2012Applicant: NINGBO YAK TECHNOLOGY INDUSTRIAL CO., LTD.Inventors: Xinmin Hao, Guojun Zhang, Mingzhai Gao, Meijun Qiu, Chao Gao, Minzhu Ning
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Publication number: 20120293146Abstract: A control circuit is configured for controlling a power switch to regulate an output of a power converter. The control circuit is configured to increase a switching frequency of the power switch when a first signal representing a magnitude of the power converter is below a first output level. In some embodiment, the first output level is selected such that when the first signal is below the first output level, the power converter may generate audible noise. In an embodiment, when the first signal is above the first output level, the control circuit is configured to turn off the power switch when a second signal representing a current in the power switch is above a first reference level. On the other hand, when the first signal is below the first output level, the control circuit is configured to turn off the power switch if the second signal reaches a lower reference level.Type: ApplicationFiled: August 5, 2011Publication date: November 22, 2012Applicant: BCD Semiconductor Manufacturing LimitedInventors: PingAn Zhao, Huizhen Zhu, Hu Wang, Chao Gao
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Publication number: 20120144602Abstract: A process for preparing an optical colored polyester film using microwave technique comprises the following steps: microwave dyeing treatment by passing a polyester film through a disperse dye suspension with steady water phase in a dye-pool comprising a microwave generator; rinsing with water; rinsing with solvent; finally drying treatment, and then uniform optical colored films with various colors are obtained. The optical colored films are used as optical filters or optical protection films and as glass window films for automobile, and domestic and office windows.Type: ApplicationFiled: August 12, 2010Publication date: June 14, 2012Inventors: Bo Peng, Wei Wei, Chao Gao
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Patent number: 8169612Abstract: A method for calibrating an apparatus for ellipsometric measurements performed on an arbitrarily large or continuously moving sample, using a visible sample reference frame, and one or more laser sources in order to calibrate the ellipsometer for variations in the distance between the ellipsometer apparatus and the sample of interest. Included are techniques for projecting a first laser beam spot from an incident laser source onto a sample, then analyzing the position of the first laser beam spot relative to the center of the sample reference frame using human-aided measurements and confirmations and/or computer vision techniques. Then adjusting pivot points and/or apparatus-to-sample distance to achieve a first beam spot being located about the center of the sample reference frame, and concurrently intersecting the plane of the sample. Other techniques include changing the incidence and reflectance angle using a semi-circular track arc design with a stepping motor activating each goniometer arm.Type: GrantFiled: May 28, 2009Date of Patent: May 1, 2012Assignee: KooSur Technologies Inc.Inventor: Chao Gao
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Publication number: 20110237430Abstract: A process for preparing a catalyst comprising palladium supported on a carrier via a layered precursor, comprising the following steps: (1) synthesis of hydrotalcite layered precursor which comprises promoting metal element and aluminium on the surface of the carrier of Al2O3 microspheres, the atoms of the promoting metal and aluminium being highly dispersed by each other and bonded firmly to the carrier due to the crystal lattice positioning effect of the hydrotalcite crystal; (2) introduction of palladium into the carrier through impregnation; (3) drying; and (4) calcination and reduction with H2, the hydrotalcite layered precursor being converted into a composite oxide which consists of oxides of the promoting metal and aluminium, and the promoting metal element and aluminium being highly dispersed by each other and being able to separate and disperse the mainly active palladium element loaded later.Type: ApplicationFiled: June 25, 2009Publication date: September 29, 2011Applicant: BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGYInventors: Fazhi Zhang, Peng Chen, Rong Hou, Jiali Chen, Chao Gao, Hui Zhang, Dianqing Li, Feng Li, Xue Duan
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Publication number: 20100302541Abstract: A method for calibrating an apparatus for ellipsometric measurements performed on an arbitrarily large or continuously moving sample, using a visible sample reference frame, and one or more laser sources in order to calibrate the ellipsometer for variations in the distance between the ellipsometer apparatus and the sample of interest. Included are techniques for projecting a first laser beam spot from an incident laser source onto a sample, then analyzing the position of the first laser beam spot relative to the center of the sample reference frame using human-aided measurements and confirmations and/or computer vision techniques. Then adjusting pivot points and/or apparatus-to-sample distance to achieve a first beam spot being located about the center of the sample reference frame, and concurrently intersecting the plane of the sample. Other techniques include changing the incidence and reflectance angle using a semi-circular track arc design with a stepping motor activating each goniometer arm.Type: ApplicationFiled: May 28, 2009Publication date: December 2, 2010Inventor: Chao Gao