Patents by Inventor Qifang Wang

Qifang Wang 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: 11661467
    Abstract: The present disclosure discloses a high-performance rubber damping material and a method for preparing the same, relating to the technical field of damping materials. The method for preparing the high-performance rubber damping material includes: grafting hydroxyethyl methacrylate and lignin to a rubber molecular chain of natural rubber latex through graft copolymerization reaction, so as to obtain a high-performance rubber damping material. This method adopts natural rubber latex as a base material, the hydroxyethyl methacrylate and lignin are grafted to the rubber molecular chain of natural rubber latex through graft copolymerization reaction, to form a semi-interpenetrating network structure.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: May 30, 2023
    Assignee: Agricultural Products Processing Research Inst., Chinese Academy of Tropical Agricultural Sciences
    Inventors: Hongchao Liu, Heping Yu, Qifang Wang, Yongzhen Li, Zheng Peng
  • Publication number: 20210395423
    Abstract: The present disclosure discloses a high-performance rubber damping material and a method for preparing the same, relating to the technical field of damping materials. The method for preparing the high-performance rubber damping material includes: grafting hydroxyethyl methacrylate and lignin to a rubber molecular chain of natural rubber latex through graft copolymerization reaction, so as to obtain a high-performance rubber damping material. This method adopts natural rubber latex as a base material, the hydroxyethyl methacrylate and lignin are grafted to the rubber molecular chain of natural rubber latex through graft copolymerization reaction, to form a semi-interpenetrating network structure.
    Type: Application
    Filed: March 26, 2021
    Publication date: December 23, 2021
    Inventors: Hongchao LIU, Heping YU, Qifang WANG, Yongzhen LI, Zheng PENG
  • Patent number: 10058817
    Abstract: The present disclosure discloses a continuous operable gas purification device in an ion mobility spectrometer including a housing provided with a cylinder cavity; a dry gas supply unit; a rotating barrier arranged in a radial direction of the cylinder cavity to divide it into a baking cavity and a working cavity; and a rotating mechanism. The housing is provided with a dry gas inlet and a dry gas outlet, which are communicated with the baking cavity, and a sample gas inlet and a sample gas outlet, which are communicated with the working cavity. The dry gas supply unit is connected with the dry gas inlet for a dry gas supply to the dry gas inlet. The baking cavity is provided with a heating unit correspondingly. The rotating mechanism is provided at a central position of the cylinder cavity and connected with the rotating barrier for rotating it at intervals.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: August 28, 2018
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Haichao Zhou, Yangtian Zhang, Yuntai Bao, Wangyang Wu, Yi Xiao, Changzhuo Chen, Qifang Wang, Wen He, Haijun Yu
  • Publication number: 20160263520
    Abstract: The present disclosure discloses a continuous operable gas purification device in an ion mobility spectrometer including a housing provided with a cylinder cavity; a dry gas supply unit; a rotating barrier arranged in a radial direction of the cylinder cavity to divide it into a baking cavity and a working cavity; and a rotating mechanism. The housing is provided with a dry gas inlet and a dry gas outlet, which are communicated with the baking cavity, and a sample gas inlet and a sample gas outlet, which are communicated with the working cavity. The dry gas supply unit is connected with the dry gas inlet for a dry gas supply to the dry gas inlet. The baking cavity is provided with a heating unit correspondingly. The rotating mechanism is provided at a central position of the cylinder cavity and connected with the rotating barrier for rotating it at intervals.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 15, 2016
    Inventors: Haichao ZHOU, Yangtian ZHANG, Yuntai BAO, Wangyang WU, Yi XIAO, Changzhuo CHEN, Qifang WANG, Wen HE, Haijun YU
  • Publication number: 20160189947
    Abstract: The present disclosure provides an electrode ring for an ion mobility spectrometer, an ion transfer tube and an ion mobility spectrometer. Wherein, the electrode ring has an outer edge thickness larger than its inner edge thickness in an axial direction. Through the present disclosure, in the structure of the electrode ring, the uniformity of the electric filed inside the transfer tube can be significantly improved. In the present disclosure, the smooth ion transfer zone inside the transfer tube can be enlarged. The ion transfer tube formed of electrode rings each having an inner edge thickness the same as the outer edge thickness in the axial direction apparently has poorer uniformity of electrode field than the ion transfer tube formed of electrode rings each having the same outer edge thickness but an inner edger thickness smaller than the outer edge thickness in the axial direction.
    Type: Application
    Filed: December 30, 2015
    Publication date: June 30, 2016
    Inventors: Haichao ZHOU, Yangtian ZHANG, Yuntai BAO, Wangyang Wu, Yi XIAO, Changzhuo CHEN, Qifang WANG, Wen He
  • Patent number: 9214859
    Abstract: In one aspect, a first charge pump has serially arranged charge pump stages. Inter-stage nodes between adjacent stages are pumped by a second charge pump. In another aspect, timing of the charge pump stages is controlled by at a command clock signal. The command clock signal and command data are communicated between a integrated circuit with the charge pump and an external circuit.
    Type: Grant
    Filed: April 30, 2012
    Date of Patent: December 15, 2015
    Assignee: Macronix International Co., Ltd.
    Inventors: Yung Feng Lin, Chun-Jen Huang, Tzeng-Huei Shiau, Chun-Hsiung Hung, Caiyun Wu, Qifang Wang
  • Publication number: 20130285737
    Abstract: In one aspect, a first charge pump has serially arranged charge pump stages. Inter-stage nodes between adjacent stages are pumped by a second charge pump. In another aspect, timing of the charge pump stages is controlled by at a command clock signal. The command clock signal and command data are communicated between a integrated circuit with the charge pump and an external circuit.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Applicant: Macronix International Co., Ltd.
    Inventors: Yung Feng Lin, Chun-Jen Huang, Tzeng-Huei Shiau, Chun-Hsiung Hung, Caiyun Wu, Qifang Wang