Patents by Inventor Guoqiang (David) Zhang

Guoqiang (David) Zhang 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: 11895751
    Abstract: A leakage protection circuit and a dimming drive circuit are provided. A leakage detection circuit is configured to detect whether leakage occurs between two input terminals that receive an external signal. When leakage occurs, leakage protection measures are taken. A pulse generation circuit receives the sampling signal characterizing the voltage between the two input terminals to compare the sampling signal with two thresholds to control a detection path of the leakage detection circuit to be turned on or off according to a comparison result. The leakage detection path is enabled to be turned on twice by setting two pulse signals in a power frequency period, which can consider the leakage detection of the front-edge phase-cutting dimming and rear-edge phase-cutting dimming of the dimming drive circuit and has a wide range of applications.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 6, 2024
    Assignee: JOULWATT TECHNOLOGY CO., LTD.
    Inventors: Wanyue He, Guoqiang Liu
  • Publication number: 20240038766
    Abstract: An electronic device and a display panel are provided. The display panel has a display region and a bending region positioned at one side of the display region. The display panel includes a first transparent substrate, a first inorganic layer, a second inorganic layer, and a blocking layer positioned at one side of the first transparent substrate. The second inorganic layer has a first via in the bending region of the display panel. This alleviates the mura near the bending region due to the exposure of the first transparent substrate and thus alleviates the mura issue occurred on the conventional display panel close to the bending region.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 1, 2024
    Applicant: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Guoqiang YANG
  • Publication number: 20240034707
    Abstract: The invention provides a reaction system for preparing butyraldehyde by propylene carbonylation, comprising: a reactor; a side wall of the reactor is sequentially provided with a catalyst inlet, a propylene inlet and a synthesis gas inlet from top to bottom; the bottom of the reactor is provided with a solvent inlet; two micro-interface generators are arranged inside of the reactor from top to bottom, and the micro-interface generator located at a top end is connected to the propylene inlet to break the propylene gas into micron-scale micro-bubbles; the micro-interface generator located at a bottom is connected to the synthesis gas inlet for breaking the synthesis gas into micron-scale micro-bubbles; the outlets of the two micro-interface generators are opposite, and the outlets are connected with a gas distributor for evenly distributing raw materials.
    Type: Application
    Filed: July 30, 2021
    Publication date: February 1, 2024
    Applicant: NANJING INSTITUTE OF MICROINTERFACE TECHNOLOGY CO., LTD
    Inventors: Zhibing ZHANG, Zheng ZHOU, Lei LI, Feng ZHANG, Weimin MENG, Baorong WANG, Gaodong YANG, Huaxun LUO, Guoqiang YANG, Hongzhou TIAN, Yu CAO, Jia LIU
  • Publication number: 20240035299
    Abstract: A pole yurt framing structure system includes: a crown wheel, a roof pole, and a lattice wall; wherein the crown wheel is a prismatic conical structure formed by multiple triangular first pole orthogonally stacked wooden rib structures; the roof pole comprises multiple rectangular second pole orthogonally stacked wooden rib structures and multiple triangular third pole orthogonally stacked wooden rib structures; and the lattice wall comprises at least one cuboid frame and multiple rectangular frames. A construction method of the pole yurt framing structure system uses assembly technology. The composite wooden poles with the same specifications are prefabricated by the factory, which are assembled on site to form the pole orthogonally stacked wooden rib structures. Finally, the pole yurt framing can be obtained. The technical scheme reduces the production and design cost, and reduces environment pollution caused by the construction.
    Type: Application
    Filed: October 10, 2023
    Publication date: February 1, 2024
    Inventors: Pengju Zhang, Lagenbaier Zha, Long He, Guoqiang Xu, Liyan Bai
  • Patent number: 11884636
    Abstract: The present invention provides a compound or a pharmaceutically acceptable salt, isomer, prodrug, polymorph or solvate thereof, and a preparation method therefor and use thereof. The compound provided in the present invention has comparable or superior activity to Elagolix as a GnRHR antagonist in calcium flux assays and have better pharmacokinetic properties.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: January 30, 2024
    Assignee: SHIJIAZHUANG YILING PHARMACEUTICAL CO., LTD.
    Inventors: Guoqiang Liu, Wei Liu, Yandong Wang
  • Publication number: 20240026601
    Abstract: The invention provides a silver-plated conductive nylon fiber and a preparation method thereof. The method includes: immersing a nylon fiber in an aqueous solution containing a polyphenolic compound at 60° C. to 70° C., adding a water-soluble oxidant into the solution, continuously reacting at 70° C. to 80° C., and obtaining a polyphenol grafted nylon fiber, where the polyphenolic compound contains a catechol group; immersing the polyphenol grafted nylon fiber into a solution containing silver ions at 15° C. to 25° C. for reaction, and raising the temperature to 70° C. to 80° C. for continuous reaction to obtain a surface-activated nylon fiber; and carrying out chemical silver plating treatment on the surface-activated nylon fiber to obtain the silver-plated conductive nylon fiber. The method does not require a heavy metal sensitizer and therefore is non-toxic and environment-friendly, and the fiber strength is maintained.
    Type: Application
    Filed: June 4, 2021
    Publication date: January 25, 2024
    Inventors: Tieling XING, Xin AI, Ailing XIE, Shenzhou LU, Guoqiang CHEN
  • Publication number: 20240024063
    Abstract: This application concerns a loupe-based wearable device that is enhanced by a mounted visualization aid on the housing body of at least one of the loupe eyepieces, the aid providing a dual light source, a beam splitter, and a camera directed in the same optical path as a user's eyesight such that both visible light and fluorescent dye exciting light can be directed at a site of operation to enhance real time visualization of tissue resection.
    Type: Application
    Filed: October 5, 2023
    Publication date: January 25, 2024
    Inventors: Guoqiang Yu, Thomas A. Pittman, Chong Huang, Nick McGregor
  • Publication number: 20240031731
    Abstract: The present disclosure relates to a vehicle-mounted woofer device and a design method therefor. The vehicle-mounted woofer device comprises a box body and a woofer disposed in the box body. The woofer comprises a cone. The cone has a front surface facing the interior of a cabin and a rear surface opposite to the front surface. A cavity is formed between the rear surface of the cone and the box body. A main waveguide for communicating the cavity with the outside is disposed in the box body. A secondary waveguide is further disposed in the box body. The main waveguide and the secondary waveguide are each provided with an inlet in communication with the cavity. The main waveguide is provided with an outlet for communicating with the outside of the cabin, and the secondary waveguide is provided with an outlet for communicating with the outside or inside of the cabin.
    Type: Application
    Filed: July 5, 2021
    Publication date: January 25, 2024
    Inventors: Xiafeng Xue, Guoqiang Chai
  • Publication number: 20240024215
    Abstract: Disclosed is a hair care composition comprising a (i) an anionic surfactant; (ii) an amphoteric or zwitterionic surfactant; (iii) piroctone olamine; iv) a polyaspartate or its derivative presented by the structure of formula (1), where the sum of m+n is from 2 to 10000, R1, R2 are independently selected from the group consisting of H, OH, (O)mG, m is 0 or 1, G is independently selected from the group consisting of H and a substituted or unsubstituted C1-C12 organic group, ammonium salt, wherein non-limiting examples of the metal salts include Na, K, Ca, Mg, Al salts; and v) a cosmetically acceptable carrier; wherein the weight ratio of said polyaspartate or its derivative to said piroctone olamine in the composition is at least 2:3. It has been shown to improve the stability of the piroctone olamine.
    Type: Application
    Filed: December 6, 2021
    Publication date: January 25, 2024
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Feng CAO, Guoqiang CHEN, Chengdong JI
  • Publication number: 20240026747
    Abstract: A coring and sampling integrated sub, including an integrally formed base body, a probe module, a coring module and a hydraulic module. The probe module, the coring module and the hydraulic module are all mounted on the base body. The hydraulic module, the probe module and the coring module are sequentially arranged from top to bottom. An output end of the hydraulic module is configured to be connected to the probe module and the coring module, respectively. The hydraulic module is configured to provide telescopic power for the probe module, and provide power for movement, flipping, and pushing of the coring module. Also disclosed is a downhole instrument including the coring and sampling integrated sub.
    Type: Application
    Filed: October 29, 2021
    Publication date: January 25, 2024
    Applicant: CHINA OILFIELD SERVICES LIMITED
    Inventors: Yongren FENG, Tao LU, Lin HUANG, Shusheng GUO, Xiaodong CHU, Kun XU, Tiemin LIU, Yongchao CHEN, Yongzeng XUE, Xinhuo WENG, Guoqiang ZHANG, Suogui SHANG, Yang SHEN, Ya JIN
  • Publication number: 20240011483
    Abstract: The present disclosure relates to a dual gerotor apparatus. The dual gerotor apparatus comprises a housing configured to provide a first and second hydraulic fluid circuit sharing a single inlet and a single outlet. The dual gerotor apparatus further comprises a gerotor assembly coupling with a rotatable shaft, the gerotor assembly is configured to transfer a hydraulic fluid flowing through the first or second hydraulic fluid circuit from the single inlet to the single outlet. The gerotor comprises a first gerotor pump and a second gerotor pump, the first gerotor pump will be in operation when the rotatable shaft rotates in a first direction, and the second gerotor pump will be in operation when the rotatable shaft rotates in a second direction.
    Type: Application
    Filed: August 17, 2021
    Publication date: January 11, 2024
    Applicant: VALEO POWERTRAIN (NANJING) CO., LTD.
    Inventors: Yejin JIN, Kai CHEN, Guoqiang SUN
  • Publication number: 20240015431
    Abstract: A coaxial loudspeaker with a horn and a shape optimization method therefor are provided. The coaxial loudspeaker includes: a woofer unit; a tweeter unit; and a horn having an inner cavity, an open upper end and an open lower end. The tweeter unit comprises a high-pitch cone, the horn surrounds the high-pitch cone, a lower end portion of the horn is connected to the tweeter unit, and an upper end portion of the horn has the largest inner diameter.
    Type: Application
    Filed: July 5, 2021
    Publication date: January 11, 2024
    Inventors: Mingwei LU, Guoqiang CHAI, Renfang XU, Xiafeng XUE
  • Patent number: 11869897
    Abstract: An array substrate including a display area having a plurality of subpixels is provided. The plurality of subpixels includes a plurality of first subpixels in a display-bonding sub-area and a plurality of second subpixels in a regular display sub-area. The array substrate includes a plurality of thin film transistors on a first side of the base substrate and respectively in the plurality of subpixels. A respective one of the plurality of first subpixels includes a bonding pad on a second side of a base substrate; a lead line electrically connecting a respective one of a plurality of thin film transistors to the bonding pad; and a via extending through the base substrate. The lead line is unexposed in the array substrate. The lead line extends from the first side to the second side of the base substrate through the via, to connect to the bonding pad.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: January 9, 2024
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Ke Wang, Muxin Di, Zhiwei Liang, Guoqiang Wang, Renquan Gu, Xiaoxin Song, Xiaoyan Zhu, Yingwei Liu, Zhanfeng Cao
  • Patent number: 11865857
    Abstract: The instant disclosure is directed to a heterogeneous fiber fluid reservoir for holding and delivering fluid. A reservoir may comprise a rod having a core component and a surrounding component. Each of the core component and the surrounding component may comprise fibers. The core component may have a first property, and the surrounding component may have a second property different from the first property, or the core component and the surrounding component may each have a different value or range of values for the same property. Alternatively, a reservoir may comprise a rod that includes fibers and has a cross-sectional diameter. At least one property of the rod may vary in value along the cross-sectional diameter of the rod. The property may include, for example, fiber bulk density, fiber diameter, fiber material, fiber morphology, fiber surface tension, capillary force, fluid absorption capacity, color, or combinations thereof.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: January 9, 2024
    Assignee: Porex Technologies Corporation
    Inventors: David Bradley Harris, Kevin Sporrer, Janie Wierzbicki, Ronald Eugene Billups, Yelena Rogova, Thomas E. Harris, Qiang Zhou, Timothy Allen Martin, Xingguo Li, Guoqiang Mao
  • Patent number: 11869257
    Abstract: A method for detecting and labeling a target object in a 2D image includes receiving a plurality of 2D images from a visual sensor, manually marking points of the target object on each of the 2D images, generating from the 2D images a 3D world coordinate system of the environment surrounding the target object, mapping each of the marked points on the 2D images to the 3D world coordinate system using a simultaneous localization and mapping (SLAM) engine, automatically generating a 3D bounding box covering all the marked points mapped to the 3D world coordinate system, mapping the 3D bounding box to each of the 2D images, generating a label for the target object on each of the 2D images using a machine learning object detection model, and training the machine learning object detection model based on the generated label for the target object.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: January 9, 2024
    Assignee: International Business Machines Corporation
    Inventors: Guoqiang Hu, Sheng Nan Zhu, Yuan Yuan Ding, Hong Bing Zhang, Dan Zhang, Tian Tian Chai
  • Patent number: 11871606
    Abstract: A display substrate has at least one display region and at least one non-display region, and a non-display region is located at at least one side of a display region. The display substrate includes a base, a plurality of light-emitting devices, and an encapsulation layer. The plurality of light-emitting devices are located in the at least one display region and disposed on a side of the base. The encapsulation layer is disposed on a side of the plurality of light-emitting devices facing away from the base, and configured to encapsulate the plurality of light-emitting devices. A surface, proximate to the base, of a portion of the encapsulation layer located in the non-display region is unevenly arranged.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: January 9, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jinxiang Xue, Guoqiang Wang, Zhongyuan Sun, Wenqi Liu, Jingkai Ni, Kai Sui, Xiaofen Wang, Xiang Zhou, Chao Dong, Guangcai Yuan
  • Patent number: 11858945
    Abstract: The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: November 9, 2022
    Date of Patent: January 2, 2024
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Joseph D. Panarese, Samuel Bartlett, Guoqiang Wang, Yat Sun Or
  • Patent number: 11859236
    Abstract: The present disclosure provides a method for detecting L-serine based on cysteine desulfurase-containing living Escherichia coli cells, and belongs to the technical field of amino acid detection. The method includes the following steps: incubating an unknown sample with the cysteine desulfurase-containing living E. coli cells to produce a red substance, and qualitatively or semi-quantitatively detecting L-serine content in the unknown sample according to color changes of the red substance of the living E. coli cells, or quantitatively detecting L-serine content in the unknown sample by measuring absorbance of a lysate of the living E. coli cells. The detection method provided by the present disclosure is simple and convenient in process, few in reaction steps and stable in enzymatic activity of living cells.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: January 2, 2024
    Assignee: WENZHOU MEDICAL UNIVERSITY
    Inventors: Guoqiang Tan, Jianghui Li, Feng Liang, Yilin Pang
  • Publication number: 20230417487
    Abstract: Embodiments of the present disclosure provide a sintering device and a pressure sintering mechanism with a controllable atmosphere thereof. The pressure sintering mechanism with the controllable atmosphere includes: a telescopic tube, wherein at least a part of the telescopic tube is an elastically telescopic bellows section; two pressure components arranged opposite to each other, wherein the telescopic tube is configured between the two pressure components, the two pressure components are configured to seal an opening of an end of the telescopic tube when the two pressure components are close to each other to form a sealed sintering chamber inside the telescopic tube and apply pressure to a product inside the sintering chamber; and a heating component configured to heat the product inside the sintering chamber.
    Type: Application
    Filed: September 13, 2023
    Publication date: December 28, 2023
    Applicant: QUICK INTELLIGENT EQUIPMENT CO., LTD.
    Inventors: Guoqiang QI, Xiaoming DOU, Jiawei JIANG, Youzhi YANG, Yuan LIU
  • Publication number: 20230416268
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions comprising these compounds and methods of using these compounds for treating a metabolic disease or liver condition. The present invention relates generally to compounds and pharmaceutical compositions useful as 17?-HSD13 inhibitors. Specifically, the present invention relates to compounds useful as inhibitors of 17?-HSD13 and methods for their preparation and use.
    Type: Application
    Filed: April 26, 2023
    Publication date: December 28, 2023
    Inventors: Yat Sun Or, Joseph D. Panarese, Guoqiang Wang, Jing He, Jiang Long, Jun Ma, Bin Wang, Sourav Ghorai