Patents by Inventor Ronghua Liu

Ronghua Liu 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).

  • Publication number: 20240142901
    Abstract: Provided is a heating control method and image forming apparatus. The heating control method includes: when an image forming apparatus is in a printing state, determining a time duration t1 required for the fixing assembly to rise from a current temperature or a temperature at a set moment to a preset target temperature; and determining a time point of the fixing assembly to start heating based on a distance from a preset location to a central position of the fixing assembly, a travelling speed of a printing medium, and the time t1. Through determining the heating time point of the fixing assembly based on the distance from the preset location to the center of the fixing assembly, the traveling speed of the printing medium, and the time duration t1, heating timing of the fixing assembly can be accurately determined, the energy consumption of the fixing assembly can be reduced.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 2, 2024
    Inventors: Ronghua LI, Hongyan Liu, Hongcheng Xiang, Yulin Liang
  • Publication number: 20240142821
    Abstract: The present disclosure relates a backlight module and a display device to improve surface uniformity of the backlight module. The backlight module includes: a first region and a second region surrounding the first region; a backplate; a light source located at a side of the backplate pointing to a light exiting direction of the backlight module and also located in the first region; and a first structure located at a side of the light source away from the backplate, where the first structure includes scattering dots; where the scattering dots are located in the first region and the second region, and within a unit projected area, an area of orthographic projection of the scattering dots in the first region is smaller than an area of orthographic projection of the scattering dots in the second region, or the scattering dots are located in the second region.
    Type: Application
    Filed: January 10, 2024
    Publication date: May 2, 2024
    Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
    Inventors: Chunfeng LIU, Ronghua LI
  • Publication number: 20240126101
    Abstract: A fatty acid-releasing contact lens is described as well as method of manufacturing the same. The fatty acid-releasing contact lens comprises a glycerophospholipid loaded to the polymeric lens body and sustains the release of C12-C26 fatty acid after 1 hour in a release media comprising an sPLA2 enzyme solution. The fatty acid-releasing contact lens can be comfortably worn by a contact lens wearer and can increase the duration of comfortable lens wearing time and/or reduce lens awareness events in a contact lens wearer.
    Type: Application
    Filed: September 21, 2023
    Publication date: April 18, 2024
    Applicant: CooperVision International Limited
    Inventors: Jing NI, Ronghua LIU
  • Publication number: 20240118559
    Abstract: An oleic acid-releasing contact lens is described as well as method of manufacturing the same. The oleic acid-releasing contact lens comprises a glycerophospholipid comprising an oleoyl group at the sn-2 position and sustains the release of oleic acid in the presence of sPLA2 enzyme present in human tears. The oleic acid-releasing contact lens can increase the duration of comfortable lens wearing time and/or reduce lens awareness events in a symptomatic contact lens wearer.
    Type: Application
    Filed: September 21, 2023
    Publication date: April 11, 2024
    Applicant: CooperVision International Limited
    Inventors: Jing NI, Ronghua LIU
  • Publication number: 20240072562
    Abstract: A motor control circuit includes a first switch module, a three-phase inverter, and a control module. A power supply module, the first switch module, the three-phase inverter, and a three-phase alternating current motor form a current loop; midpoints of three phase legs of the three-phase inverter are respectively connected to three phase coils of the three-phase alternating current motor; the three-phase alternating current motor is configured to input or output a current by using a wire N extending from a connection point of the three phase coils; the control module is connected to the three-phase inverter, first switch module, three-phase alternating current motor, and power supply module; the control module is configured to control the three-phase inverter to enable the motor control circuit to receive a voltage of the power supply module and output a direct current, and to boost a voltage of the power supply module.
    Type: Application
    Filed: November 9, 2023
    Publication date: February 29, 2024
    Inventors: Changjiu LIU, Hua PAN, Ronghua NING, Yang LIU, Ning YANG
  • Publication number: 20230314223
    Abstract: A chromaticity measurement method and device for calibration of a tiled LED display screen (A) having the advantages of convenience in operation and accurate measurement. The chromaticity measurement method includes: imaging emergent light from the tiled LED display screen (A) with an objective lens (1); receiving a light beam from the objective lens (1) with a transflective lens (2) and performing beam splitting to obtain a first light beam and a second light beam; receiving the first light beam with an imaging sensor (3) to obtain an original image; receiving the second light beam in a two-dimensional lattice form with a movable optical fiber array coupling device (4), and converting the second light beam into one-dimensional lattice light; and obtaining chromaticity information and spectrum information of a plurality of regions on the tiled LED display screen (A) according to the one-dimensional lattice light with a spectrum acquisition device (5).
    Type: Application
    Filed: March 31, 2021
    Publication date: October 5, 2023
    Inventors: Changdong Ou, Zengqiang Zheng, Shiwen Luo, Zhikun Hong, Zhou Wang, Fan Zhong, Luning Liu, Xiaofan Feng, Ronghua Liu, Yafei Shen, Kai Chen
  • Patent number: 11767374
    Abstract: A preparation of a homogeneous polysaccharide from a Radix Puerariae aqueous extract is provided and the lipid-lowering activity of the polysaccharide is studied. It is proved through in vivo experiments that the homogeneous polysaccharide QL extracted from Radix Puerariae (a genuine medicinal material in Jiangxi Province) in the present disclosure has significant lipid-lowering activity, can significantly reduce a serum triglyceride content and a liver index, and can be used to develop a potential safe and effective lipid-lowering drug.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: September 26, 2023
    Assignee: JIANGXI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
    Inventors: Hui Ouyang, Quan Wen, WeiFeng Zhu, YuLin Feng, RongHua Liu, YongMei Guan, Kai Qian, Hui Du
  • Publication number: 20220259331
    Abstract: A preparation of a homogeneous polysaccharide from a Radix Puerariae aqueous extract is provided and the lipid-lowering activity of the polysaccharide is studied. It is proved through in vivo experiments that the homogeneous polysaccharide QL extracted from Radix Puerariae (a genuine medicinal material in Jiangxi Province) in the present disclosure has significant lipid-lowering activity, can significantly reduce a serum triglyceride content and a liver index, and can be used to develop a potential safe and effective lipid-lowering drug.
    Type: Application
    Filed: March 8, 2021
    Publication date: August 18, 2022
    Applicant: JIANGXI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
    Inventors: Hui OUYANG, Quan WEN, WeiFeng ZHU, YuLin FENG, RongHua LIU, YongMei GUAN, Kai QIAN, Hui DU
  • Publication number: 20220053662
    Abstract: A pump drive device includes a box body and at least one drive pump. A liquid-phase zone module is arranged in the box body, and the drive pump is arranged in the liquid-phase zone module. A pump drive device liquid inlet, a pump drive device liquid outlet, a liquid supply port, and an exhaust port are arranged on the box body and are located outside the liquid-phase zone module. The drive pump is connected to the pump drive device liquid outlet through a delivery pipe. The pump drive device has a simple structure and a reasonable design. The pump drive device integrates driving, pressure stabilization, exhaust, cavitation prevention, liquid-level monitoring and warning, pressure monitoring and warning, temperature monitoring and warning, medium purification, and other functions, which achieves an integration, miniaturization, and lightweight design, well matches the application of liquid cooling system products in various industries.
    Type: Application
    Filed: October 12, 2021
    Publication date: February 17, 2022
    Applicant: BEEHE ( TAICANG ) ELECTRIC CO., LTD.
    Inventors: Ronghua LIU, Ping CHEN, Jiechuang ZHOU
  • Patent number: 11081029
    Abstract: The invention discloses a method for evaluating a brightness measurement accuracy of a Demura equipment by generating a noise-added image by adding a random number to an original grayscale image and obtaining a measurement value corresponding to the added random number via the noise-added image displayed by the Demura equipment. The brightness measurement accuracy of the Demura equipment is evaluated based on a correlation between the measured value and the originally added random number to measure a brightness extraction performance of the Demura equipment. The method provided by the invention provides a quantitative and measurable determining method that may better reflect the actual performance of the Demura equipment.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: August 3, 2021
    Assignee: WUHAN JINGCE ELECTRONIC GROUP CO., LTD.
    Inventors: Xiaofan Feng, Zengqiang Zheng, Zhao Liu, Erwei Ma, Hongjun Wu, Ronghua Liu, Yafei Shen
  • Publication number: 20200380897
    Abstract: The invention discloses a method for evaluating a brightness measurement accuracy of a Demura equipment by generating a noise-added image by adding a random number to an original grayscale image and obtaining a measurement value corresponding to the added random number via the noise-added image displayed by the Demura equipment. The brightness measurement accuracy of the Demura equipment is evaluated based on a correlation between the measured value and the originally added random number to measure a brightness extraction performance of the Demura equipment. The method provided by the invention provides a quantitative and measurable determining method that may better reflect the actual performance of the Demura equipment.
    Type: Application
    Filed: July 9, 2018
    Publication date: December 3, 2020
    Applicant: WUHAN JINGCE ELECTRONIC GROUP CO., LTD.
    Inventors: Xiaofan FENG, Zengqiang ZHENG, Zhao LIU, Erwei MA, Hongjun WU, Ronghua LIU, Yafei SHEN
  • Publication number: 20190237732
    Abstract: The disclosure relates to the field of lithium-ion batteries, and discloses a lithium-ion battery separator, a method for preparing same, and a lithium-ion battery. The lithium-ion battery separator includes: a porous basement membrane, and a heat-resistant layer covering at least one side surface of the porous basement membrane, where the heat-resistant layer contains a high-temperature-resistant polymer and inorganic nanometer particles; and the heat-resistant layer has a fiber-network shaped structure.
    Type: Application
    Filed: August 14, 2017
    Publication date: August 1, 2019
    Inventors: Jialing HU, Ronghua LIU, Jun SHAN, Long HE
  • Patent number: 9647293
    Abstract: A gel polymer composite electrolyte, a polymer lithium ion battery comprising the gel polymer composite electrolyte and methods of preparing the polymer lithium ion battery are provided. The gel polymer composite electrolyte is formed by swelling after a polymer membrane absorbs an electrolyte, wherein the polymer membrane is formed by thermocuring a polymer mixture comprising an acrylic emulsion, water and ammonia water, and the acrylic emulsion has a glass transition temperature ranging from about ?30° C. to about 50° C.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 9, 2017
    Assignee: BYD COMPANY LIMITED
    Inventors: Jun Shan, Ronghua Liu, Lina Jin
  • Publication number: 20150171466
    Abstract: A gel polymer composite electrolyte, a polymer lithium ion battery comprising the gel polymer composite electrolyte and methods of preparing the polymer lithium ion battery are provided. The gel polymer composite electrolyte is formed by swelling after a polymer membrane absorbs an electrolyte, wherein the polymer membrane is formed by thermocuring a polymer mixture comprising an acrylic emulsion, water and ammonia water, and the acrylic emulsion has a glass transition temperature ranging from about ?30° C. to about 50° C.
    Type: Application
    Filed: August 18, 2013
    Publication date: June 18, 2015
    Applicant: BYD COMPANY LIMITED
    Inventors: Jun Shan, Ronghua Liu, Lina Jin
  • Patent number: 8658748
    Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable levels of energy loss are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer which is a dual-end methacrylate end-capped polydimethylsiloxane having a number average molecular weight of at least 7,000 daltons. The average energy loss of the silicone hydrogel contact lenses is from about 30% to about 45% when the lenses are fully hydrated. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: February 25, 2014
    Assignee: CooperVision International Holding Company, LP
    Inventors: Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back, Ying Zheng
  • Publication number: 20130261216
    Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable levels of energy loss are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer which is a dual-end methacrylate end-capped polydimethylsiloxane having a number average molecular weight of at least 7,000 daltons. The average energy loss of the silicone hydrogel contact lenses is from about 30% to about 45% when the lenses are fully hydrated. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 3, 2013
    Applicant: CooperVision International Holding Company, LP
    Inventors: Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back, Ying Zheng
  • Patent number: 8481662
    Abstract: Silicone hydrogel contact lenses having ophthalmically acceptable levels of energy loss are described. The lenses are derived from a polymerizable composition including a first siloxane monomer represented by formula (1): wherein m of formula (1) represents one integer from 3 to 10, n of formula (1) represents one integer from 1 to 10, R1 of formula (1) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (1) is independently either a hydrogen atom or a methyl group; the lenses also include units derived from a second siloxane monomer which is a dual-end methacrylate end-capped polydimethylsiloxane having a number average molecular weight of at least 7,000 daltons. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: July 9, 2013
    Assignee: CooperVision International Holding Company, LP
    Inventors: Ronghua Liu, Xinfeng Shi, Yuwen Liu, Charlie Chen, Ye Hong, Charles A. Francis, Li Yao, Arthur Back, Ying Zheng
  • Publication number: 20120216489
    Abstract: Silicone hydrogel contact lenses that are derived from a polymerizable composition including at least one siloxane monomer and at least one hydrophilic monomer are described. These silicone hydrogel contact lenses have, when fully hydrated, has an equilibrium freezable water content of at least 25% wt/wt as determined by differential scanning calorimetry (DSC). Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Applicant: COOPERVISION INTERNATIONAL HOLDING COMPANY, LP
    Inventors: Paul Hungchaung Lee, Ronghua Liu, Xinfeng Shi, Yuwen Liu, Ye Hong, Charlie Chen, Li Yao, Arthur Back, Charles A. Francis
  • Patent number: D894905
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: September 1, 2020
    Inventor: Ronghua Liu
  • Patent number: D953330
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: May 31, 2022
    Inventor: Ronghua Liu