Patents by Inventor PEI XIE

PEI XIE 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: 12170149
    Abstract: A method and apparatus for constructing a drug knowledge graph are provided. The method may include: identifying entities in a drug text; replacing medical key entities among the entities with character strings that conform to a preset rule, to obtain a replaced text; restoring the character strings in a word segmentation result, determined based on the replaced text, to the medical key entities replaced by the character strings; forming a linear entity relationship between the entities based on the entities; and generating a drug knowledge graph according to a parsing result obtained by syntactically parsing the linear entity relationship.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 17, 2024
    Assignee: Beijing Jingdong Tuoxian Technology Co., Ltd.
    Inventors: Shuai Yang, Pei Xie, Hao Wen, Lei Han, Ya Zhang
  • Patent number: 11939508
    Abstract: The disclosure belongs to the technical field of liquid crystal materials, and specifically relates to a polymerizable compound, a preparation method therefor, and the use thereof. The polymerizable compound has a structure as shown in general formula I. Compared with the existing polymerizable RM, the polymerizable compound has the advantages of a good solubility, a faster polymerization rate, a more complete extent of polymerization, and less residues, thereby improving the problem of poor display to a great extent.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: March 26, 2024
    Assignee: BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD.
    Inventors: Xiong Dai, Kun Jiang, Pei Xie, Haiwei Zhang, Jianbo Sun, Youwen Cheng, Bin Hou, Yijie Tang
  • Publication number: 20230352192
    Abstract: A method and apparatus for constructing a drug knowledge graph are provided. The method may include: identifying entities in a drug text; replacing medical key entities among the entities with character strings that conform to a preset rule, to obtain a replaced text; restoring the character strings in a word segmentation result, determined based on the replaced text, to the medical key entities replaced by the character strings; forming a linear entity relationship between the entities based on the entities; and generating a drug knowledge graph according to a parsing result obtained by syntactically parsing the linear entity relationship.
    Type: Application
    Filed: April 22, 2021
    Publication date: November 2, 2023
    Inventors: Shuai YANG, Pei XIE, Hao WEN, Lei HAN, Ya ZHANG
  • Publication number: 20230142277
    Abstract: The disclosure belongs to the technical field of liquid crystal materials, and specifically relates to a polymerizable compound, a preparation method therefor, and the use thereof. The polymerizable compound has a structure as shown in general formula I. Compared with the existing polymerizable RM, the polymerizable compound has the advantages of a good solubility, a faster polymerization rate, a more complete extent of polymerization, and less residues, thereby improving the problem of poor display to a great extent.
    Type: Application
    Filed: December 1, 2020
    Publication date: May 11, 2023
    Inventors: Xiong DAI, Kun JIANG, Pei XIE, Haiwei ZHANG, Jianbo SUN, Youwen CHENG, Bin HOU, Yijie TANG
  • Patent number: 11479795
    Abstract: The disclosure discloses a genetically engineered strain for sarcosine production as well as a construction method and application. The genetically engineered strain is obtained by using Escherichia coli as a host and by integrating a single copy of imine reductase gene dpkA on its genome; singly copying citrate synthase gene gltA; knocking out glyoxylate cycle inhibitor gene iclR; knocking out malate synthase gene aceB; integrating a single copy of isocitrate lyase gene aceA; integrating a single copy of membrane-bound transhydrogenase gene pntAB; knocking out 2-ketate reductase gene ycdW; integrating a single copy of phosphoenolpyruvate carboxylase gene ppc; and knocking out pyruvate kinase gene pykF. After system metabolism transformation, the engineered strain can synthesize sarcosine with glucose and methylamine as main raw materials. The sarcosine titer can reach 10 g/L after fermentation for 30 h in a 5 L fermenter.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: October 25, 2022
    Inventors: Xiaoguang Fan, Yuhang Zhou, Huajie Cao, Pei Xie, Jun Yang, Junyu Tian, Ning Chen, Qingyang Xu
  • Publication number: 20220259625
    Abstract: The disclosure discloses a genetically engineered strain for sarcosine production as well as a construction method and application. The genetically engineered strain is obtained by using Escherichia coli as a host and by integrating a single copy of imine reductase gene dpkA on its genome; singly copying citrate synthase gene gltA; knocking out glyoxylate cycle inhibitor gene iclR; knocking out malate synthase gene aceB; integrating a single copy of isocitrate lyase gene aceA; integrating a single copy of membrane-bound transhydrogenase gene pntAB; knocking out 2-ketate reductase gene ycdW; integrating a single copy of phosphoenolpyruvate carboxylase gene ppc; and knocking out pyruvate kinase gene pykF. After system metabolism transformation, the engineered strain can synthesize sarcosine with glucose and methylamine as main raw materials. The sarcosine titer can reach 10 g/L after fermentation for 30 h in a 5 L fermenter.
    Type: Application
    Filed: January 12, 2022
    Publication date: August 18, 2022
    Inventors: Xiaoguang FAN, Yuhang ZHOU, Huajie CAO, Pei XIE, Jun YANG, Junyu TIAN, Ning CHEN, Qingyang XU
  • Patent number: 10694937
    Abstract: The present invention discloses a hand-held autonomous visual acuity measurement apparatus and a visual acuity measuring method. The invention comprises a corneal curvature measurement module comprising a first light source for emitting a first light beam and a first image collector for collecting an image formed from the first light beam after it has been reflected by cornea, the first image collector being movably provided in the corneal curvature measurement optical path of the corneal curvature measurement module, and the corneal curvature measurement module further comprises a first motor for driving the first image collector to move along the corneal curvature measurement optical path so that the first image collector moves to the imaging position.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: June 30, 2020
    Assignee: SUZHOU SEEHITECH EQUIPMENTS CO., LTD.
    Inventors: Pei Xie, Qin Jiang, Renyuan Chu, Xingtao Zhou, Qinmei Wang, Junwen Zeng, Ruihua Wei, Ji Shen
  • Patent number: 10478062
    Abstract: Disclosed is an optometry apparatus capable of measuring para-central defocus, comprising a diopter measurement module. The diopter measurement module comprises a first light source (1) emitting a first light beam. The optometry apparatus also comprises a scanning module for adjusting the position of a light spot formed on the retina by the first light beam. The scanning module comprises a first reflecting mirror (3) and a second reflecting mirror (5) rotatably positioned in sequence in the emergent optical path of the first light source (1). The rotation axis of the first reflecting mirror (3) and the rotation axis of the second reflecting mirror (5) form therebetween an angle greater than 0 degree and less than 180 degrees.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: November 19, 2019
    Assignee: SUZHOU SEEHITECH EQUIPMENTS CO., LTD
    Inventors: Pei Xie, Renyuan Chu, Baichuan Jiang, Xingtao Zhou, Qinmei Wang, Junwen Zeng, Ruihua Wei, Qin Jiang, Li Zhong, Ji Shen
  • Publication number: 20180177392
    Abstract: The present invention discloses a hand-held autonomous visual acuity measurement apparatus and a visual acuity measuring method. The invention comprises a corneal curvature measurement module comprising a first light source for emitting a first light beam and a first image collector for collecting an image formed from the first light beam after it has been reflected by cornea, the first image collector being movably provided in the corneal curvature measurement optical path of the corneal curvature measurement module, and the corneal curvature measurement module further comprises a first motor for driving the first image collector to move along the corneal curvature measurement optical path so that the first image collector moves to the imaging position.
    Type: Application
    Filed: August 16, 2016
    Publication date: June 28, 2018
    Inventors: Pei Xie, Qin Jiang, Renyuan Chu, XINGTAO ZHOU, QINMEI WANG, JUNWEN ZENG, RUIHUA WEI, JI SHEN
  • Publication number: 20180153400
    Abstract: Disclosed is an optometry apparatus capable of measuring para-central defocus, comprising a diopter measurement module. The diopter measurement module comprises a first light source (1) emitting a first light beam. The optometry apparatus also comprises a scanning module for adjusting the position of a light spot formed on the retina by the first light beam. The scanning module comprises a first reflecting mirror (3) and a second reflecting mirror (5) rotatably positioned in sequence in the emergent optical path of the first light source (1). The rotation axis of the first reflecting mirror (3) and the rotation axis of the second reflecting mirror (5) form therebetween an angle greater than 0 degree and less than 180 degrees.
    Type: Application
    Filed: August 16, 2016
    Publication date: June 7, 2018
    Inventors: PEI XIE, RENYUAN CHU, BAICHUAN JIANG, XINGTAO ZHOU, QINMEI WANG, JUNWEN ZENG, RUIHUA WEI, QIN JIANG, LI ZHONG, JI SHEN