Patents by Inventor Huamin Zhou

Huamin Zhou 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).

  • Patent number: 11952472
    Abstract: The disclosure discloses a preparation method and product of carbon fiber reinforced polymer composites with a designable characteristic structure. The method includes: (a) choosing carbon fabrics as raw material, where a predetermined number of the fabrics are selected to deposit the reinforcement phase; (b) coating all carbon fabrics with resin matrix, placing the fabrics layer by layer, where the carbon fabrics with the reinforcement phases are placed in a predetermined layer, meanwhile a micro power supply is placed in a setting layer during the stacking process, then a prefabricated product is obtained; (c) placing the prefabricated product in a vacuum bag then evacuating and sealing, hot pressing the sealed prefabricated product, finally the carbon fiber reinforced polymer composite product in the vacuum bag after hot pressing is successfully manufactured.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: April 9, 2024
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Huamin Zhou, Helezi Zhou, Zhigao Huang, Fengjia Zhang, Yun Zhang, Yunming Wang, Dequn Li
  • Patent number: 11820045
    Abstract: The present disclosure discloses an injection molding method for fabricating a transparent device, and belongs to the technical field of material processing. The method comprises: preparing a nano-microsphere structural polymer material from a long-chain polymer material; obtaining a glass transition temperature and a viscous flow transition temperature of the nano-microsphere structural polymer material; obtaining a processing temperature of the nano-microsphere structural polymer material according to the glass transition temperature and the viscous flow transition temperature; drying the nano-microsphere structural polymer material; plasticizing the dried nano-microsphere structural polymer material according to the processing temperature; filling the plasticized nano-microsphere structural polymer material; cooling the filled nano-microsphere structural polymer material; and demolding the cooled nano-microsphere structural polymer material to form a transparent device.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: November 21, 2023
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yunming Wang, Huamin Zhou, Yun Zhang, Zhigao Huang, Dequn Li, Dan Chen, Yue Fu
  • Patent number: 11183677
    Abstract: A preparation method of a lithium-ion battery electrode sheet includes: adding a powdered thermal decomposition additive, an active material, a binder, and a conductive agent into a solvent according to a predetermined ratio and a specific order, performing continuous stirring until the solvent is uniformly mixed, obtaining an electrode slurry, coating the prepared and obtained electrode slurry onto a current collector to obtain a lithium-ion battery wet electrode sheet, and heating and drying the lithium-ion battery wet electrode sheet. The lithium-ion battery electrode sheet with the vertical vent structures is accordingly prepared and obtained. The product includes a current collector, an electrode coating layer, and a plurality of vertical vent structures which are uniformly distributed.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: November 23, 2021
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Huamin Zhou, Yun Zhang, Yunming Wang, Maoyuan Li, Ruoyu Xiong, Hui Yang, Bo Yan
  • Publication number: 20210332203
    Abstract: The disclosure discloses a preparation method and product of carbon fiber reinforced polymer composites with a designable characteristic structure. The method includes: (a) choosing carbon fabrics as raw material, where a predetermined number of the fabrics are selected to deposit the reinforcement phase; (b) coating all carbon fabrics with resin matrix, placing the fabrics layer by layer, where the carbon fabrics with the reinforcement phases are placed in a predetermined layer, meanwhile a micro power supply is placed in a setting layer during the stacking process, then a prefabricated product is obtained; (c) placing the prefabricated product in a vacuum bag then evacuating and sealing, hot pressing the sealed prefabricated product, finally the carbon fiber reinforced polymer composite product in the vacuum bag after hot pressing is successfully manufactured.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 28, 2021
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Huamin Zhou, Helezi Zhou, Zhigao Huang, Fengjia Zhang, Yun Zhang, Yunming Wang, Dequn Li
  • Patent number: 11088666
    Abstract: An operational amplifier with totem pole connected output transistors having inputs coupled to multiplexers for selectable coupling of signals and voltage levels thereto. The high and low output transistors may be forced hard on or hard off in addition to normal coupling of signals thereto. The operation of the output transistors may be dynamically changed to pass only positive going signals, negative going signals, placed in a tristate high impedance state, hard connected to a supply voltage and/or hard connected to supply common return. A core independent peripheral (CIP) may also be coupled to the operational amplifier for dynamically changing the multiplexer inputs in real time, as can external control signals to a control circuit coupled to the multiplexers.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: August 10, 2021
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Keith Edwin Curtis, Ward Brown, John Charais, Steve Kennelly, Dave Suda, Huamin Zhou, Clark Rogers, Mudit Gupta
  • Publication number: 20210210743
    Abstract: A preparation method of a lithium-ion battery electrode sheet includes: adding a powdered thermal decomposition additive, an active material, a binder, and a conductive agent into a solvent according to a predetermined ratio and a specific order, performing continuous stirring until the solvent is uniformly mixed, obtaining an electrode slurry, coating the prepared and obtained electrode slurry onto a current collector to obtain a lithium-ion battery wet electrode sheet, and heating and drying the lithium-ion battery wet electrode sheet. The lithium-ion battery electrode sheet with the vertical vent structures is accordingly prepared and obtained. The product includes a current collector, an electrode coating layer, and a plurality of vertical vent structures which are uniformly distributed.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 8, 2021
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Huamin ZHOU, Yun ZHANG, Yunming WANG, Maoyuan LI, Ruoyu XIONG, Hui YANG, Bo YAN
  • Publication number: 20210129385
    Abstract: The present disclosure discloses an injection molding method for fabricating a transparent device, and belongs to the technical field of material processing. The method comprises: preparing a nano-microsphere structural polymer material from a long-chain polymer material; obtaining a glass transition temperature and a viscous flow transition temperature of the nano-microsphere structural polymer material; obtaining a processing temperature of the nano-microsphere structural polymer material according to the glass transition temperature and the viscous flow transition temperature; drying the nano-microsphere structural polymer material; plasticizing the dried nano-microsphere structural polymer material according to the processing temperature; filling the plasticized nano-microsphere structural polymer material; cooling the filled nano-microsphere structural polymer material; and demolding the cooled nano-microsphere structural polymer material to form a transparent device.
    Type: Application
    Filed: December 3, 2018
    Publication date: May 6, 2021
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Yunming WANG, Huamin ZHOU, Yun ZHANG, Zhigao HUANG, Dequn LI, Dan CHEN, Yue FU
  • Patent number: 10643568
    Abstract: A bias voltage generator circuit may include a mode control circuit, a clock generator circuit coupled with the mode control unit and configured to generate a plurality of clock signals, and a charge pump circuit configured to receive the clock signals. The charge pump circuit may be coupled with the mode control circuit and operable to output selectable output voltages according to input from the mode control circuit. The output selectable voltages may depend upon the clock signals.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: May 5, 2020
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
  • Publication number: 20200119706
    Abstract: An operational amplifier with totem pole connected output transistors having inputs coupled to multiplexers for selectable coupling of signals and voltage levels thereto. The high and low output transistors may be forced hard on or hard off in addition to normal coupling of signals thereto. The operation of the output transistors may be dynamically changed to pass only positive going signals, negative going signals, placed in a tristate high impedance state, hard connected to a supply voltage and/or hard connected to supply common return. A core independent peripheral (CIP) may also be coupled to the operational amplifier for dynamically changing the multiplexer inputs in real time, as can external control signals to a control circuit coupled to the multiplexers.
    Type: Application
    Filed: May 14, 2019
    Publication date: April 16, 2020
    Applicant: Microchip Technology Incorporated
    Inventors: Keith Edwin Curtis, Ward Brown, John Charais, Steve Kennelly, Dave Suda, Huamin Zhou, Clark Rogers, Mudit Gupta
  • Publication number: 20190266973
    Abstract: A bias voltage generator circuit may include a mode control circuit, a clock generator circuit coupled with the mode control unit and configured to generate a plurality of clock signals, and a charge pump circuit configured to receive the clock signals. The charge pump circuit may be coupled with the mode control circuit and operable to output selectable output voltages according to input from the mode control circuit. The output selectable voltages may depend upon the clock signals.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 29, 2019
    Applicant: Microchip Technology Incorporated
    Inventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
  • Patent number: 10332476
    Abstract: A bias voltage generator circuit may include a mode control circuit, a clock generator circuit coupled with the mode control unit and configured to generate a plurality of clock signals, and a charge pump circuit configured to receive the clock signals. The charge pump circuit may be coupled with the mode control circuit and operable to output selectable output voltages according to input from the mode control circuit. The output selectable voltages may depend upon the clock signals.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: June 25, 2019
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
  • Publication number: 20170358271
    Abstract: A bias voltage generator circuit may include a mode control circuit, a clock generator circuit coupled with the mode control unit and configured to generate a plurality of clock signals, and a charge pump circuit configured to receive the clock signals. The charge pump circuit may be coupled with the mode control circuit and operable to output selectable output voltages according to input from the mode control circuit. The output selectable voltages may depend upon the clock signals.
    Type: Application
    Filed: June 13, 2017
    Publication date: December 14, 2017
    Applicant: Microchip Technology Incorporated
    Inventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
  • Patent number: 9471074
    Abstract: A voltage regulator has a large gm current buffer driver added between a first stage of an operation amplifier and a last stage power transistor. This current buffer allows a significant reduction in the maximum internal and external compensation capacitances needed for regulator stability. The current buffer compensation circuit allows a wide range of external capacitor sizes that increases the flexibility in choosing the external capacitor types (with low to high ESR ratings).
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 18, 2016
    Assignee: MICROCHIP TECHNOLOGY INCORPORATED
    Inventors: Huamin Zhou, Woowai Martin, Cristian Albina, Fritz Schlunder, Minh Le
  • Publication number: 20140266107
    Abstract: A voltage regulator comprises a large gm current buffer driver added between a first stage of an operation amplifier and a last stage power transistor. This current buffer allows a significant reduction in the maximum internal and external compensation capacitances needed for regulator stability. The current buffer compensation circuit allows a wide range of external capacitor sizes that increases the flexibility in choosing the external capacitor types (with low to high ESR ratings).
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Inventors: Huamin Zhou, Woowai Martin, Cristian Albina, Fritz Schlunder, Minh Le