Patents by Inventor Guohong Du

Guohong Du 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: 9230207
    Abstract: The present invention relates to a RFID tag antenna with ultra-thin dual-frequency micro strip patch antenna array, the RFID tag antenna comprises an units array (1), a substrate (2) and a substrate base plate (3); the radiation units array (1) is configured to be asymmetrically distributed around a chip; a first radiation unit (5) and a third radiation unit (7) form a low-frequency resonant system of the RFID tag antenna (9), and a second radiation unit (6) and a fourth radiation unit (8) form a high-frequency resonant system of the RFID tag antenna (9), thereby achieving a dual-frequency effect, and enabling the RFID tag antenna of the present disclosure to be compatible with both of the working frequency bands in Europe and in U.S., and thus achieving a dual-frequency-band property.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: January 5, 2016
    Assignees: XERAFY LTD (BVI), SHANGHAI YAOCHUAN INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Zhijia Liu, Guohong Du
  • Patent number: 8950683
    Abstract: A production process of a tag antenna and a micro strip patch RFID tag antenna. The production process includes: an etching step of etching a metal layer on a thin film material composited with the metal layer to form a thin film (1) with radiation unit patterns (11, 12), short circuit pin patterns (13, 14) and ground plate patterns (15, 16); a compositing step of coating gel on the thin film (1) or a substrate (2) and adhering the thin film (1) to the substrate (2); and a folding step of folding the thin film (1) along an edge of the substrate (2), adhering the short circuit pin patterns (13,14) of the thin film (1) to sides of the substrate (2), folding again the thin film (1) in a same direction, adhering the ground plate patterns (15, 16) to a lower surface of the substrate (2).
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: February 10, 2015
    Assignee: Zhijia Liu
    Inventors: Zhijia Liu, Guohong Du
  • Publication number: 20140332598
    Abstract: The present invention relates to a RFID tag antenna with ultra-thin dual-frequency micro strip patch antenna array, the RFID tag antenna comprises an units array (1), a substrate (2) and a substrate base plate (3); the radiation units array (1) is configured to be asymmetrically distributed around a chip; a first radiation unit (5) and a third radiation unit (7) form a low-frequency resonant system of the RFID tag antenna (9), and a second radiation unit (6) and a fourth radiation unit (8) form a high-frequency resonant system of the RFID tag antenna (9), thereby achieving a dual-frequency effect, and enabling the RFID tag antenna of the present disclosure to be compatible with both of the working frequency bands in Europe and in U.S., and thus achieving a dual-frequency-band property.
    Type: Application
    Filed: December 19, 2012
    Publication date: November 13, 2014
    Applicants: XERAFY LTD (BVI), SHANGHAI YAOCHUAN INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Zhijia Liu, Guohong Du
  • Publication number: 20140284388
    Abstract: A production process of a tag antenna and a micro strip patch RFID tag antenna. The production process includes: an etching step of etching a metal layer on a thin film material composited with the metal layer to form a thin film (1) with radiation unit patterns (11, 12), short circuit pin patterns (13, 14) and ground plate patterns (15, 16); a compositing step of coating gel on the thin film (1) or a substrate (2) and adhering the thin film (1) to the substrate (2); and a folding step of folding the thin film (1) along an edge of the substrate (2), adhering the short circuit pin patterns (13,14) of the thin film (1) to sides of the substrate (2), folding again the thin film (1) in a same direction, adhering the ground plate patterns (15, 16) to a lower surface of the substrate (2).
    Type: Application
    Filed: June 9, 2014
    Publication date: September 25, 2014
    Inventors: Zhijia Liu, Guohong Du