Patents by Inventor Zaixing Feng

Zaixing Feng 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).

  • Publication number: 20200172189
    Abstract: The present disclosure relates to a multimedia system of a shared bicycle. The multimedia system includes a lock main control unit, a cloud server, and a display unit. The display unit includes a navigation module, a multimedia module, and a mode switching module. The multimedia module includes a data switching sub-module. The mode switching module is configured to switch to a navigation mode or a multimedia mode. The data switching sub-module is configured to switch multimedia information. The display unit broadcasts the multimedia information to achieve advertising purposes. The navigation module provides navigation for a user, which is convenient for the user to travel and can avoid a dangerous behavior of the user. In addition, the data switching sub-module controls the multimedia system to broadcast different multimedia information in different time periods, different environments and different regions, thereby further improving the user experience.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Applicant: HANGZHOU QINGQI SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Gang LI, Guotai HE, Meimiao FENG, Zaixing LI, Sheng LIU
  • Publication number: 20200173806
    Abstract: The present disclosure relates to the field of shared bicycles, and in particular, to a multimedia system of a shared bicycle. The multimedia system may include a lock main control unit, a cloud server, a display unit and a short message unit. The lock main control unit may be connected to the cloud server, the display unit and the short message unit, respectively. The display unit may include a storage device. The lock main control unit may detect a stored content of the storage device, and may control the short message unit to send a push signal to the cloud server when the stored content does not include multimedia data. The cloud server may send the multimedia data to the storage device based on the push signal. The lock main control unit may control the display unit to turn on when a lock of the shared bicycle is unlocked, and may control the display unit to turn off when the shared bicycle ends a trip.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Applicant: HANGZHOU QINGQI SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Gang LI, Guotai HE, Meimiao FENG, Zaixing LI, Sheng LIU
  • Patent number: 9376513
    Abstract: Disclosed is a solid catalyst component for olefin polymerization. The catalyst component comprises a dialkoxy magnesium carrier, a titanium compound, and a product from an internal electron donor reacting in an inert solvent. The internal electron donor compound comprises a 2,3-di-non-linear-alkyl-2-cyano succinic acid diester compound as presented in formula I.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: June 28, 2016
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Zhong Tan, Lunjia Xie, Xiudong Xu, Yu Tian, Qilong Zhou, Zaixing Feng, Li'an Yan, Siyuan Zhao, Jinhua Yu, Zhufang Sun, Fengkui Li, Shanshan Yin, Weiwei Song
  • Patent number: 8669392
    Abstract: A process for preparing 2,3-di(non-linear-alkyl)-2-cyanosuccinate compounds, especially 2,3-diisopropyl-2-cyanosuccinate compounds, and processes for preparing 2,3-di(non-linear-alkyl)succinic acids and esters thereof by using the 2,3-di-non-linear propyl-2-cyanosuccinate compounds as intermediates are disclosed.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: March 11, 2014
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Lunjia Xie, Yu Tian, Zaixing Feng, Siyuan Zhao, Yu Kang, Zhufang Sun
  • Publication number: 20130324682
    Abstract: Disclosed is a solid catalyst component for olefin polymerization. The catalyst component comprises a dialkoxy magnesium carrier, a titanium compound, and a product from an internal electron donor reacting in an inert solvent. Said internal electron donor compound comprises a 2,3-di-non-linear-alkyl-2-cyano succinic acid diester compound as presented in formula I: as in formula I, R1 and R2 radicals are independently chosen from linear or branched C1-C4 alkyl groups; R is chosen from C3-C6 iso-alkyl, sec-alkyl, or cycloalkyl groups. Also disclosed is another solid catalyst component. The catalyst component comprises a dialkoxy magnesium carrier, a titanium compound, and a product from an internal electron donor reacting in an inert solvent. In addition to a 2,3-di-non-linear-alkyl-2-cyano succinic acid diester compound as presented in formula I, the internal electron donor compound can also comprise 2-isopropyl-2-(3-methylbutyl)-1,3-dimethoxy propane and/or a carboxylic ester compound.
    Type: Application
    Filed: January 19, 2012
    Publication date: December 5, 2013
    Inventors: Zhong TAN, Lunjia Xie, Xiudong Xu, Yu Tian, Qilong Zhou, Zaixing Feng, Li'an Yan, Siyuan Zhao, Jinhua Yu, Zhufang Sun, Fengkui Li, Shanshan Yin, Weiwei Song
  • Patent number: 8541333
    Abstract: A catalyst component for olefin polymerization comprising an ?-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: September 24, 2013
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
    Inventors: Lunjia Xie, Yongtai Ling, Yu Tian, Zaixing Feng, Siyuan Zhao, Qing Hu, Zhufang Sun, Yu Kang
  • Publication number: 20120046490
    Abstract: A process for preparing 2,3-di(non-linear-alkyl)-2-cyanosuccinate compounds, especially 2,3-diisopropyl-2-cyanosuccinate compounds, and processes for preparing 2,3-di(non-linear-alkyl)succinic acids and esters thereof by using the 2,3-di-non-linear propyl-2-cyanosuccinate compounds as intermediates are disclosed.
    Type: Application
    Filed: February 12, 2010
    Publication date: February 23, 2012
    Inventors: Lunjia Xie, Yu Tian, Zaixing Feng, Siyuan Zhao, Yu Kang, Zhufang Sun
  • Publication number: 20110040051
    Abstract: A catalyst component for olefin polymerization comprising an ?-cyanosuccinate compound as an internal electron donor, a catalyst comprising the catalyst component, and use of the catalyst in olefin polymerization. When used in propylene polymerization, the catalyst can exhibit good catalytic activity and good hydrogen response, and the resulting polymer can have a good isotacticity and a good molecular weight distribution.
    Type: Application
    Filed: August 13, 2010
    Publication date: February 17, 2011
    Inventors: Lunjia XIE, Yongtai Ling, Yu Tian, Zaixing Feng, Siyuan Zhao, Qing Hu, Zhufang Sun, Yu Kang