Patents by Inventor Mei Liu

Mei 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).

  • Patent number: 11223289
    Abstract: A switched mode power supply includes a power circuit and a control circuit coupled to the power circuit for regulating its output voltage. The control circuit is configured to generate a control signal for at least one power switch of the power circuit using a reference voltage, determine if a duty cycle of the control signal is within a defined range, sense one or more output parameters of the power circuit including the output voltage of the power circuit, and in response to determining the duty cycle of the control signal is outside the defined range, adjust the reference voltage to adjust the duty cycle of the control signal. The reference voltage is adjustable over time to thereby linearly adjust the output voltage of the power circuit. Other example switched mode power supplies, control circuits, and methods for regulating output voltages of switched mode power supplies are also disclosed.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: January 11, 2022
    Assignee: Astec International Limited
    Inventors: Lian Liang, Bing Zhang, Mei Qin, Wenyong Liu, Zhishuo Li
  • Publication number: 20210405110
    Abstract: An apparatus comprises a load resistance connectable in series with the electronic sensor to form a series resistance of the load resistance and the internal impedance of the electronic sensor; an excitation circuit configured to apply a predetermined voltage to a circuit element; and a measurement circuit configured to: initiate applying the predetermined voltage to the series resistance and determining the series resistance; initiate applying the predetermined voltage to the load resistance and determining the load resistance; and calculate the internal impedance of the sensor using the determined series resistance and the load resistance, and provide the calculated internal impedance to a user or process.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 30, 2021
    Inventors: GuangYang Qu, Yincai Tony Liu, Baotian Hao, Hanqing Wang, Hengfang Mei, Rengui Luo, Yimiao Zhao, Junbiao Ding
  • Publication number: 20210408081
    Abstract: An array substrate, a method of manufacturing an array substrate, a display panel, and an electronic device are provided. The array substrate includes a display area and a peripheral area; the display area includes a pixel region, the pixel region includes a first thin film transistor, and the first thin film transistor includes a first active layer; the peripheral area includes a second thin film transistor, and the second thin film transistor includes a second active layer; and the first active layer includes a material of oxide semiconductor, and the second active layer includes a material of poly-silicon semiconductor.
    Type: Application
    Filed: April 8, 2019
    Publication date: December 30, 2021
    Inventors: Peng LIU, Fuqiang LI, Jun FAN, Bailing LIU, Jianjun ZHANG, Yusheng LIU, Mei LI
  • Publication number: 20210404952
    Abstract: A method for selection of a calibration set and a validation set based on spectral similarity and modeling. The method includes: performing NIR spectrometry on original samples to obtain a spectral matrix of the original samples; randomly selecting m samples as an independent test set; calculating spectral similarity between each of the samples in the independent test set and each of the remaining samples in the original samples respectively to obtain g samples having the highest similarity to be written into the validation set; and calculating spectral similarity between each of the samples in the validation set and each of the remaining samples in the original samples respectively to obtain n samples having the highest similarity to be written into the calibration set. Based on the validation set and the calibration set selected through the method, an obtained model can predict unknown samples more accurately.
    Type: Application
    Filed: October 14, 2020
    Publication date: December 30, 2021
    Applicant: SHANDONG UNIVERSITY
    Inventors: Lei NIE, Yue SUN, Hengchang ZANG, Yingzi ZENG, Xiaoyan LIU, Mei SU, Meng YUAN, Linlin WANG, Hong JIANG, Guangyi CHU
  • Publication number: 20210408536
    Abstract: An electrode includes a domain material present in an amount of from about 90 to about 95 weight percent based on a total weight of the electrode. The domain material includes a component that has the formula: xLi2MnO3.(1?x)LiNiaMnbCo(1-a-b)O2, wherein x is greater than 0 and less than 1 and each of a and b is independently from about 0.1 to about 0.9 and the component is present in an amount of from about 50 to about 90 weight percent based on a total weight of the domain material. The domain material also includes an additive component having the formula LiFe1-yMnyPO4, wherein y is greater than 0 and less than 1, wherein the additive component is present in an amount of from about 10 to about 50 weight percent based on a total weight of the domain material. The electrode itself further includes a carbonaceous material and a binder.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 30, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Meinan He, Jin Liu, Xingcheng Xiao, Mei Cai
  • Publication number: 20210395755
    Abstract: The disclosure discloses a method for increasing the intracellular heme content of Escherichia coli and belongs to the field of metabolic engineering. In the disclosure, in E. coli, the gene mscS encoding a small conductance mechanically sensitive ion channel protein is knocked out, the gene aroG encoding 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase is knocked out, or the gene hemA encoding glutamyl-tRNA reductase is overexpressed. The constructed recombinant strain is cultured in an LB culture medium, and the heme content can reach 47.6 ?mol┬ĚL?1, which is significantly higher than that of a control strain. The recombinant strain has the value of wide application.
    Type: Application
    Filed: September 1, 2021
    Publication date: December 23, 2021
    Inventors: Lei Tang, Mei Pan, Shuangxin Liu
  • Publication number: 20210393777
    Abstract: The present invention provides a highly concentrated liquid formulation comprising an anti-PCSK9 (human proprotein convertase subtilisin/kexin 9) antibody. The formulation further comprises a buffer, a stabilizer and a surfactant. The liquid formulation disclosed has low viscosity, and the antibody is highly stable after several months of storage.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 23, 2021
    Inventors: Hongchuan Liu, Peixiang Liu, Jing Zhang, Shenhao Ding, Mei Zhang, Chun Wu, Hui Feng, Hai Wu
  • Publication number: 20210259776
    Abstract: A method and apparatus for simulating a medical procedure to be performed on a patient. Patient-specific data that is specific to the patient on whom the medical procedure is to be performed is received. A generic model is modified using the patient-specific data to generate a hybrid simulation model that is customized to the patient. A simulation of the medical procedure is performed using the hybrid simulation model and dynamic simulation information corresponding to at least one of the medical procedure or the patient. The simulation is customized to both the patient and the medical procedure.
    Type: Application
    Filed: June 25, 2019
    Publication date: August 26, 2021
    Inventors: Prasad V. UPADRASTA, Joey CHAU, May Quo-Mei LIU
  • Publication number: 20210079143
    Abstract: Strengthening resins and processes for making and using same. In some embodiments, a resin mixture can include a solvent and a strengthening resin. The strengthening resin can include one or more hydrophobic monomers incorporated therein. The strengthening resin can have a chemical formula of (I). The chemical formula (I) can include: where each R2 can be derived from a hydrophobic monomer.
    Type: Application
    Filed: August 3, 2020
    Publication date: March 18, 2021
    Applicant: ECOLAB USA INC.
    Inventors: Gary S. Furman, En-Wei Lin, Mei Liu, David J. Castro, Christopher D. Kaley
  • Patent number: 10873530
    Abstract: A method for controlling data transmission, device, and storage medium are provided. The method for controlling data transmission is applied to a first device and the method includes that a request for data transmission is sent; a main transmission path that fed back by a second device based on the request is received, here, the main transmission path is generated by connecting M sink nodes between the first device and the second device and M is an integer greater than 1; and the data transmission with the second device is performed according to the main transmission path.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: December 22, 2020
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Ruihong Mo, Zhiyong Lin, Mei Liu, Jun Zhang
  • Patent number: 10730006
    Abstract: Disclosed herein is a stator plate for a rotary bed PSA apparatus that has an exhaust slot that has first and second sections for receiving blowdown and purge exhaust gas streams, the sections being separated by a flow restriction that restricts but does not full prevent gas flow between the sections, or that has separate exhaust slots for separately receiving the blowdown and purge exhaust gas streams. Also disclosed is pressure swing adsorption (PSA) apparatus including such a stator plate, and a rotary bed PSA process using such an apparatus.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 4, 2020
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Glenn Paul Wagner, Xue Mei Liu, Jinzhong Liu, Roger Dean Whitley, Shubhra Jyoti Bhadra, Michael Jamie McKerrow
  • Publication number: 20200211706
    Abstract: Disclosed are an intelligent traditional Chinese medicine diagnosis method, system and traditional Chinese medicine system, the method comprising: a server side obtaining, from distributed client clusters, inspection training data, auscultation-olfaction diagnosis training data, interrogation training data and palpation training data of a patient; the server side training, by using the inspection training data, the auscultation-olfaction diagnosis training data, the interrogation training data and the palpation training data, a model to be trained established on the basis of a deep neural network algorithm to obtain a trained model; and the server side using the trained model to perform diagnosis with respect to disease data of the patient to obtain a diagnostic result of the disease data.
    Type: Application
    Filed: December 14, 2017
    Publication date: July 2, 2020
    Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Everett Xiaolin WANG, Anhui LIANG, Xiaosa WANG, Hongwu WANG, Bin CAO, Shiyu LI, Yonghuang WU, Mei LIU, Dong CAO
  • Patent number: 10655055
    Abstract: Method are provided for treating a wellbore or subterranean hydrocarbon-bearing formation to increase hydrocarbon recovery from the formation by in-depth mobility control and/or fluid diversion conformance by introducing a water soluble acrylamide polymer and a non-metallic organic crosslinking agent, or a crosslinkable acrylamide polymer, into an injection fluid entering the wellbore or the formation.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: May 19, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Michael L. Szalai, Mei Liu, Kin-Tai Chang
  • Publication number: 20200113778
    Abstract: This invention is to be applied to a person's ear. The biophotonic mask instrument consists of an ear covering component, an ear attachment component, and multiple light emitting units. The biophotonic mask instrument is connected to an external intelligent electronic device with an application to control the operation of the light emitting units. The attachment component is to be clipped onto the body of the ear with the ear covering component connected to it. The multiple light emitting units are arranged to be 0.8 mm to 1.2 mm apart or 0.65 mm to 1.5 mm apart. The light emitting units are in a net design and their wave lengths are between 400 nm to 1000 nm. The biophotonic mask instrument is wirelessly connected to the intelligence device.
    Type: Application
    Filed: October 15, 2019
    Publication date: April 16, 2020
    Inventors: Jyh-Mei Liu Swartz, CHIH-MIN LIU
  • Patent number: 10570141
    Abstract: The present invention belongs to the field of pharmaceutical chemistry, and relates to a substituted pyrrolopyrimidine CDK inhibitor, in particular to a compound as shown in formula I or a pharmaceutically acceptable salt or solvate thereof, as well as a preparation method thereof and a pharmaceutical composition thereof. The present invention also relates to the use of the compound and the pharmaceutical composition thereof in the preparation of a drug for treating diseases associated with CDK inhibition. The compound according to the present invention has a marked inhibitory effect on CDK, excellent drug absorption and significantly superior oral absorption effect.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: February 25, 2020
    Assignees: CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD., CENTAURUS BIOPHARMA CO., LTD., LIANYUNGANG RUNZHONG PHARMACEUTICAL CO., LTD.
    Inventors: Shulong Wang, Kuncheng Chen, Xijie Liu, Yuandong Hu, Bo Liu, Yong Peng, Hong Luo, Yongxin Han, Shanchun Wang, Mei Liu, Hongjiang Xu
  • Publication number: 20200054988
    Abstract: Disclosed herein is a stator plate for a rotary bed PSA apparatus that has an exhaust slot that has first and second sections for receiving blowdown and purge exhaust gas streams, the sections being separated by a flow restriction that restricts but does not full prevent gas flow between the sections, or that has separate exhaust slots for separately receiving the blowdown and purge exhaust gas streams. Also disclosed is pressure swing adsorption (PSA) apparatus including such a stator plate, and a rotary bed PSA process using such an apparatus.
    Type: Application
    Filed: August 14, 2018
    Publication date: February 20, 2020
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Glenn Paul Wagner, Xue Mei Liu, Jinzhong Liu, Roger Dean Whitley, Shubhra Jyoti Bhadra, Michael Jamie McKerrow
  • Publication number: 20200038124
    Abstract: A method of operating a surgical control system comprises displaying an image of a surgical environment, from a field of view of an imaging instrument, on a display system. The display system is configured for mounting to a head of a user. The method also includes detecting an imaging control input from the user and responsive to the detection of the imaging control input, enabling an imaging control mode of the surgical control system. The method also includes detecting a movement of the head of the user. While the surgical control system is in the imaging control mode and responsive to the user's head movement, an image of the surgical environment from a changed field of view of the imaging instrument is displayed. The changed field of view corresponds to the detected movement of the user's head.
    Type: Application
    Filed: April 19, 2018
    Publication date: February 6, 2020
    Inventors: Henry C. Lin, May Quo-Mei Liu
  • Publication number: 20190378883
    Abstract: A display device is provided. The display device includes an organic light emitting diode display panel, a blue light brightness enhancement film and a polarizing film. The blue light brightness enhancement film is disposed on the organic light emitting diode display panel. The blue light brightness enhancement film includes a cholesteric liquid crystal layer and a quarter-wave phase retardation film, and the quarter-wave phase retardation film is disposed on the cholesteric liquid crystal layer. The polarizing film is disposed on the blue light brightness enhancement film.
    Type: Application
    Filed: September 4, 2018
    Publication date: December 12, 2019
    Applicant: imat corporation
    Inventors: Tsai-An Yu, Da-Ren Chiou, Shih-Ming Hung, Kuo-Chen Wu, Hui-Mei Liu, Hsiu-Yun Hsu
  • Publication number: 20190350355
    Abstract: A drop-shaped brush head assembly is revealed. The drop-shaped brush head assembly includes a drop-shaped brush head which is formed by a plurality of bristles and a handle connected to each other. The bristles are used for combing hair and the handle is for support. The handle consists of a plurality of discharge holes on top thereof and a mounting space therein. A paint in the mounting space flows through the discharge holes of the handle and the bristles to be applied to target area. The drop-shaped design of the brush head has a pointy end on top and a larger end on bottom thereof. The pointy end allows users to control the operating angle easily while grooming fine-hair area and the larger end is used to apply the paint to large area conveniently. Thereby the brush head assembly is more convenient to use.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 21, 2019
    Applicant: Allen & Thomas Cosmetic Accessories Co., Ltd.
    Inventor: Li-Mei Liu
  • Patent number: D907332
    Type: Grant
    Filed: December 21, 2019
    Date of Patent: January 12, 2021
    Inventor: Mei Liu