Patents by Inventor Na Zhang

Na 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: 10808496
    Abstract: The present disclosure relates to a cementing plug comprising a first plug body (bottom plug), a second plug body (top plug), and a plurality of cleaning portions. The first plug body comprises: a first body provided therein with a chamber opening towards a lower end thereof, and an upper end of the first body being provided with a pressure portion; and an anti-rotation portion provided on an inner wall of the first body, and capable of being connected to slurry entering the chamber to limit a rotation of the first plug body. The second plug body comprises a second body. The plurality of cleaning portions is provided on outer sidewalls of the first body and the second body along a length direction thereof, for scraping off residuals (mud cake) on an inner wall of a casing.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: October 20, 2020
    Assignees: China National Petroleum Corporation, CNPC Engineering Technology R&D Company Limited, Beijing Petroleum Machinery Co.
    Inventors: Hongying Zhang, Na Wang, Yanfu Huang, Lin Shi, Ping Yu
  • Publication number: 20200328412
    Abstract: Provided are porous Fe3O4/sulfur composites. The composites are composed of porous Fe3O4 nanoparticles and sulfur, where the sulfur loading is 70-85% by weight based on the total weight of the composite. Also provided are batteries having cathodes containing porous FE3O4 composites of the present disclosure.
    Type: Application
    Filed: December 31, 2018
    Publication date: October 15, 2020
    Inventors: Héctor D. ABRUÑA, Na ZHANG
  • Publication number: 20200320704
    Abstract: A method of processing plaques in magnetic resonance imaging of vessel wall include: step S101, training a generative adversarial network and a capsule neural network to obtain a trained generator network and a trained capsule neural network; and step S102, cascade-connecting the trained generator network with the capsule neural network into a system to recognize and classify plaques in magnetic resonance imaging of vessel wall. In one aspect, the capsule neural network has more abundant vascular plaques characteristic information represented by vector; in another aspect, when the trained generator network and the capsule neural network are cascaded into the system to recognize and classify the plaques in magnetic resonance imaging of vessel wall, an accuracy of recognition and classification may be greatly improved. A device for processing the method as well as a computer for implementing are also disclosed.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 8, 2020
    Inventors: Hairong ZHENG, Xin LIU, Na ZHANG, Zhanli HU, Dong LIANG, Yongfeng YANG
  • Patent number: 10795444
    Abstract: A wearable device, a control method for the same and a control system are provided. The wearable device is coupled to a terminal device for generating a virtual scene and includes: a device body, a controller and a resistance adjusting mechanism. The controller is coupled to the resistance adjusting mechanism and configured to generate a control signal based on environmental information in the virtual scene generated by the terminal device. The resistance adjusting mechanism is configured to adjust a resistance parameter of the device body in a working state according to the control signal.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: October 6, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS
    Inventors: Zuoxin Yu, Jinzhao Zhou, Guochun Wang, Xinfeng Gong, Gang Ci, Baolei Guo, Zhenhua Luo, Wei Su, Na An, Xuzhong Liu, Dianzhong Liu, Xiao Ma, Bin Xu, Shaopeng Xu, Qingzhu Guan, Zheng Zhang, Zongwei Luo, Hao Wu
  • Publication number: 20200300066
    Abstract: A natural gas hydrate solid-state fluidization mining method and system under an underbalanced positive circulation condition, used for performing solid-state fluidization mining on a non-rock-forming weak-cementation natural gas hydrate layer in the ocean. Equipment includes a ground equipment system and an underwater equipment system. The construction procedure has an earlier-stage construction process, underbalanced hydrate solid-state fluidization mining construction process and silt backfilling process. Natural gas hydrates in the seafloor are mined through an underbalanced positive circulation method, and problems such as shaft safety, production control and environmental risks faced by conventional natural gas hydrate mining methods such as depressurization, heat injection, agent injection and replacement are effectively solved.
    Type: Application
    Filed: November 20, 2018
    Publication date: September 24, 2020
    Inventors: Jinzhou ZHAO, Na WEI, Haitao LI, Liehui ZHANG, Shouwei ZHOU, Qingping LI, Wantong SUN
  • Publication number: 20200291754
    Abstract: A hydrate solid-state fluidization mining method and system under an underbalanced reverse circulation condition are used for solid-state fluidization mining on a non-rock-forming weak-cementation natural gas hydrate layer in the ocean. Equipment includes a ground equipment system and an underwater equipment system. The construction procedure includes an earlier-stage construction process, pilot hole drilling construction process, reverse circulation jet fragmentation process, underbalanced reverse circulation fragment recovery process and silt backfilling process. Natural gas hydrates in the seafloor are mined through an underbalanced reverse circulation method. Problems such as shaft safety, production control and environmental risks faced by conventional natural gas hydrate mining methods such as depressurization, heat injection, agent injection and replacement are effectively solved.
    Type: Application
    Filed: November 20, 2018
    Publication date: September 17, 2020
    Inventors: Jinzhou ZHAO, Na WEI, Haitao LI, Liehui ZHANG, Shouwei ZHOU, Qingping LI, Wantong SUN
  • Publication number: 20200290052
    Abstract: A crushing system for large-size natural gas hydrate rock samples, which mainly includes a crushing and stirring control subsystem, crushing and stirring execution subsystem and hydrate preparation subsystem. Full automatic control to parameter acquisition and experimental process is achieved by utilizing modern automation technology, including the function of automatically crushing the large-size natural gas hydrate rock samples and also monitoring, collecting and storing the drilling pressure, the torque and the internal furnace pressure and temperature parameters during the crushing process in real time, to provide reliable guarantee for the follow-up researches on crushing mechanism, crushing efficiency, drilling parameter optimization, rock crushing ability evaluation of a crushing tool and the like of the large-size natural gas hydrate rock samples and necessary experimental verification means for optimization of on-site exploiting construction conditions of natural gas hydrate.
    Type: Application
    Filed: November 20, 2018
    Publication date: September 17, 2020
    Inventors: Jinzhou ZHAO, Na WEI, Chunquan LIU, Kaisong WU, Liehui ZHANG, Shouwei ZHOU, Haitao LI, Wantong SUN
  • Publication number: 20200291042
    Abstract: The present application relates to a macrocycle containing aminopyrazole and pyrimidine, which is represented by formula (1), a pharmaceutical composition thereof, and a use thereof in inhibiting tropornyosin receptor kinase (Trk) activity and in treating diseases in mammals that are mediated by Trk.
    Type: Application
    Filed: August 23, 2018
    Publication date: September 17, 2020
    Inventors: Liguang DAI, Xiaowei DUAN, Yanqing YANG, Xijie LIU, Hongjuan LI, Na ZHAO, Yinghui SUN, Fansheng KONG, Jiuqing ZHANG, Yizhong ZHU, Ling YANG, Fei LIU
  • Publication number: 20200270690
    Abstract: A serum/plasma LncRNA marker composition associated with auxiliary diagnosis of intrahepatic cholestasis of pregnancy and application thereof. The marker is selected from any one of ENST00000449605.1, ASO3480 and ENST00000505175.1. The serum/plasma LncRNA screening and auxiliary diagnosis kit is a LncRNAs diagnostic kit developed based on the specific serum/plasma LncRNA of ICP cases and healthy controls.
    Type: Application
    Filed: February 4, 2020
    Publication date: August 27, 2020
    Inventors: Ting ZHANG, Liang LUO, Jing WANG, Ruirui DONG, Ping ZOU, Shaohan ZOU, Rui YANG, Yao WANG, Na LI, Minjian CHEN, Xina MENG, Yan ZHANG, Conghua ZHOU
  • Patent number: 10751807
    Abstract: The present application provides a material transferring and positioning device for a wheel machining center, which includes a base plate, a base, a first bearing, a first shaft sleeve, a hydraulic cylinder brake, a rotary cylinder, a cap and so on. The application may meet the positioning requirement of the wheel machining center, and has the advantages of simple structure, convenient manufacture, stable performance, high positioning precision and simple operation, so that it is very suitable for automatic mass production.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 25, 2020
    Assignee: CITIC DICASTAL CO., LTD
    Inventors: Weidong Liu, Na Zhang, Liguang Xie, Jing Wang, Shujuan Li
  • Publication number: 20200266214
    Abstract: The present disclosure provides a display panel, a method for manufacturing the same, and a display device. The insulation layer is provided above the first conductive electrodes in the bonding area of the display panel, the insulation layer covers the first conductive electrodes, and the insulation layer is capable of being pierced by ACF particles. When the display panel is bound to an FPC by an ACF, second conductive electrodes on the FPC can be electrically coupled to the first conductive electrodes on the display panel through the ACF particles, thereby achieving the bonding connection between the display panel and the FPC, even if a conductive foreign object falls into the area where the first conductive electrodes are located, short circuit cannot be caused, thereby improving the product yield.
    Type: Application
    Filed: September 14, 2018
    Publication date: August 20, 2020
    Inventors: Dexiong SONG, Zhiyong YANG, Liwei HUANG, Shihua HUANG, Xue JIANG, Shibing YUAN, Fei CHEN, Wei LI, Chao FU, Na ZHANG, Yu DU, Xuemei DENG
  • Patent number: 10745036
    Abstract: A bogie, including a frame (1) and a bolster (2), the frame (1) including two parallel side beams (11), and a cross beam (12) coupled to the middle of the side beams (11), wherein a primary suspension is arranged between an end of the side beam (11) and an axle box (31), a secondary suspension is arranged between the below of the bolster (2) and the cross beam (12), and a tertiary suspension coupled to a vehicle body is arranged above the bolster (2). By including a bolster and an extra suspension on the basis of the conventional two suspensions, the disclosed bogie can achieve separation of the functions, so that the tertiary suspension only handles the transverse displacement, and the secondary suspension only handles the rotation, thereby further increasing the relative displacement and rotation angle between the vehicle body and the bogie when the vehicle negotiates a curve.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 18, 2020
    Assignee: CRRC TANGSHAN CO., LTD.
    Inventors: Xiaojun Zhang, Junfeng Wang, Na Lu, Lijun Zhang, Wenhao Hu
  • Patent number: 10745383
    Abstract: Disclosed are compounds having formulae I and II or pharmaceutically acceptable salts or hydrates thereof, a preparation method thereof and pharmaceutical compositions thereof. The compounds having formulae I and II possesses an isocitrate dehydrogenase 2 (IDH2) inhibitory activity and are capable of treating IDH2 mutation-induced cancers.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: August 18, 2020
    Assignees: Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Lianyungang Runzhong Pharmaceutical Co., Ltd., Centaurus Biopharma Co., Ltd.
    Inventors: Na Zhao, Shulong Wang, Xijie Liu, Yuandong Hu, Hui Zhang, Hong Luo, Yong Peng, Yongxin Han, Xiquan Zhang, Hongjiang Xu
  • Patent number: 10749546
    Abstract: The present disclosure describes methods and systems that provide for content based dynamic data compression. During a training stage a plurality of training sets are compressed using multiple data compression techniques, and each training data set is associated with a most effective compression technique. Statistical features can be extracted from each of the training data sets with consideration of the most effective compression techniques and are saved as a compression parameters file. During a working stage, individual data blocks within a telemetry data set are compressed using a data compression technique selected for the data block in light of the statistical feature presented in the compression parameters file, and the compressed data blocks are written to a compressed data set, along with encoding tags that identify the compression technique used on each data block. During a consumption stage, the compressed data blocks are decompressed using techniques identified by the encoding tags.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: August 18, 2020
    Assignee: Dell Products L.P.
    Inventors: Jun Sun, Lin Chen, Xiao Na Zhang
  • Publication number: 20200258225
    Abstract: Systems and methods for determining a breast region in a medical image are provided. The methods may include obtaining a first image relating to the breast region, determining a first region including a first plurality of pixels in the breast region, determining a second region including a second plurality of pixels relating to an edge of the breast region, and determining the breast region by combining the first region and the second region. The second plurality of pixels may include at least a portion of the first plurality of pixels.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Na ZHANG, Juan FENG, Yange MA, Haihua ZHOU, Le YANG, Hao CHEN, Wanli TENG
  • Patent number: 10738394
    Abstract: The present invention discloses a molecular beam epitaxy under vector strong magnetic field and an in-situ characterization apparatus thereof. The apparatus mainly consists of an inverted T-shaped ultrahigh vacuum growth and characterization chamber with a compact structure and a strong magnet. The inverted T-shaped vacuum chamber portion, which disposed in the room-temperature chamber of the strong magnet, includes a compact epitaxial growth sample stage, a device capable of rotating angle between the growth and magnetic field directions, and an in-situ characterization apparatus. The portion disposed below the strong magnet includes a molecular beam source component such as evaporation source, plasma source etc., and a vacuum-pumping system.
    Type: Grant
    Filed: December 31, 2017
    Date of Patent: August 11, 2020
    Inventors: Junyong Kang, Chunmiao Zhang, Zhiming Wu, Ting Chen, Na Gao, Yaping Wu, Heng Li
  • Publication number: 20200233958
    Abstract: A method for active risk control based on an intelligent interaction comprises: acquiring contact information of a risk implementer; actively interacting with the risk implementer based on the contact information of the risk implementer and generating a record of the active interaction; processing the record of the active interaction and extracting risk characteristics from it; categorizing risks according to the risk characteristics; and implementing different risk controls on the risks.
    Type: Application
    Filed: March 17, 2020
    Publication date: July 23, 2020
    Inventors: Lei YAO, Yifeng YING, Na LI, Zhe ZHANG
  • Publication number: 20200231631
    Abstract: The invention provides a gene sequence which can encode and express adenovirus hexon protein in vitro, and is represented as SEQ ID NO: 3. Also invented a protein which was translated and expressed by the gene sequence according to the invention, and the invention also relates to the use of the protein as an antigen to immunize rabbits to obtain a polyclonal antibody. The antibody mentioned above can detect adenovirus with high sensitivity and specificity.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 23, 2020
    Inventors: Ping CHEN, Na LI, Xintao ZHONG, Tingting ZHANG, Nan LI
  • Publication number: 20200226803
    Abstract: A method and system for image reconstruction are provided. A projection image of a projection object may be obtained. A processed projection image may be generated based on the projection image through one or more pre-process operations. A reconstructed image including an artifact may be reconstructed based on the processed projection image. The artifact may be a detector edge artifact, a projection object edge artifact, and a serrated artifact. The detector edge artifact, the projection object edge artifact, and the serrated artifact may be removed from the reconstructed image.
    Type: Application
    Filed: March 23, 2020
    Publication date: July 16, 2020
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Le YANG, Hao CHEN, Kai CUI, Juan FENG, Yecheng HAN, Yange MA, Jie NIU, Ji QI, Wanli TENG, Na ZHANG, Haihua ZHOU
  • Publication number: 20200228830
    Abstract: A video picture inter prediction method includes determining an inter prediction mode used to perform inter prediction on a current picture block, where the inter prediction mode is one mode in a candidate inter prediction mode set, and the candidate inter prediction mode set includes a plurality of inter prediction modes used for a non-directional motion field or a plurality of inter prediction modes used for a directional motion field, and performing inter prediction on the current picture block based on the determined inter prediction mode.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Inventors: Na Zhang, Jianhua Zheng, Jicheng An