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: 11952472Abstract: 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: GrantFiled: April 22, 2021Date of Patent: April 9, 2024Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Huamin Zhou, Helezi Zhou, Zhigao Huang, Fengjia Zhang, Yun Zhang, Yunming Wang, Dequn Li
-
Patent number: 11820045Abstract: 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: GrantFiled: December 3, 2018Date of Patent: November 21, 2023Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Yunming Wang, Huamin Zhou, Yun Zhang, Zhigao Huang, Dequn Li, Dan Chen, Yue Fu
-
Patent number: 11183677Abstract: 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: GrantFiled: March 25, 2021Date of Patent: November 23, 2021Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Huamin Zhou, Yun Zhang, Yunming Wang, Maoyuan Li, Ruoyu Xiong, Hui Yang, Bo Yan
-
Publication number: 20210332203Abstract: 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: ApplicationFiled: April 22, 2021Publication date: October 28, 2021Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Huamin Zhou, Helezi Zhou, Zhigao Huang, Fengjia Zhang, Yun Zhang, Yunming Wang, Dequn Li
-
Patent number: 11088666Abstract: 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: GrantFiled: May 14, 2019Date of Patent: August 10, 2021Assignee: MICROCHIP TECHNOLOGY INCORPORATEDInventors: Keith Edwin Curtis, Ward Brown, John Charais, Steve Kennelly, Dave Suda, Huamin Zhou, Clark Rogers, Mudit Gupta
-
Publication number: 20210210743Abstract: 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: ApplicationFiled: March 25, 2021Publication date: July 8, 2021Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Huamin ZHOU, Yun ZHANG, Yunming WANG, Maoyuan LI, Ruoyu XIONG, Hui YANG, Bo YAN
-
Publication number: 20210129385Abstract: 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: ApplicationFiled: December 3, 2018Publication date: May 6, 2021Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Yunming WANG, Huamin ZHOU, Yun ZHANG, Zhigao HUANG, Dequn LI, Dan CHEN, Yue FU
-
Patent number: 10643568Abstract: 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: GrantFiled: May 10, 2019Date of Patent: May 5, 2020Assignee: MICROCHIP TECHNOLOGY INCORPORATEDInventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
-
Publication number: 20200119706Abstract: 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: ApplicationFiled: May 14, 2019Publication date: April 16, 2020Applicant: Microchip Technology IncorporatedInventors: Keith Edwin Curtis, Ward Brown, John Charais, Steve Kennelly, Dave Suda, Huamin Zhou, Clark Rogers, Mudit Gupta
-
Publication number: 20190266973Abstract: 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: ApplicationFiled: May 10, 2019Publication date: August 29, 2019Applicant: Microchip Technology IncorporatedInventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
-
Patent number: 10332476Abstract: 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: GrantFiled: June 13, 2017Date of Patent: June 25, 2019Assignee: MICROCHIP TECHNOLOGY INCORPORATEDInventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
-
Publication number: 20170358271Abstract: 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: ApplicationFiled: June 13, 2017Publication date: December 14, 2017Applicant: Microchip Technology IncorporatedInventors: Peter K. Nagey, Mudit Gupta, Huamin Zhou
-
Patent number: 9471074Abstract: 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: GrantFiled: March 11, 2014Date of Patent: October 18, 2016Assignee: MICROCHIP TECHNOLOGY INCORPORATEDInventors: Huamin Zhou, Woowai Martin, Cristian Albina, Fritz Schlunder, Minh Le
-
Publication number: 20140266107Abstract: 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: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Inventors: Huamin Zhou, Woowai Martin, Cristian Albina, Fritz Schlunder, Minh Le