Patents by Inventor Sajjan PARAJULI

Sajjan PARAJULI 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).

  • NFC QR code label for preventing forgery and falsification and method for producing NFC QR code label
    Patent number: 11475265
    Abstract: An NFC QR code label according to the present invention comprises: a rectenna for receiving a radio frequency signal from a terminal device and converting the signal into DC power; a ring oscillator activated by receiving the DC power supplied from the rectenna, and producing an oscillation signal having a predetermined frequency; and a light-emitting QR code flickering in response to the oscillation signal. The light-emitting QR code includes a QR code pattern formed by means of gravure printing using a nonconductor ink.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 18, 2022
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Gyou Jin Cho, Jun Feng Sun, Hye Jin Park, Kiran Shrestha, Gyan Rajkoirala, You Shin Kim, Pravesh Yadav, Sajjan Parajuli, Welsey Prince Vanaraj, Amol Marotrao Kale, Jinhwa Park, Sunggeun Lee
  • NFC QR CODE LABEL FOR PREVENTING FORGERY AND FALSIFICATION AND METHOD FOR PRODUCING NFC QR CODE LABEL
    Publication number: 20220067473
    Abstract: An NFC QR code label according to the present invention comprises: a rectenna for receiving a radio frequency signal from a terminal device and converting the signal into DC power; a ring oscillator activated by receiving the DC power supplied from the rectenna, and producing an oscillation signal having a predetermined frequency; and a light-em QR code flickering in response to the oscillation signal. The light-emitting QR code includes a QR code pattern formed by means of gravure printing using a nonconductor ink.
    Type: Application
    Filed: December 19, 2018
    Publication date: March 3, 2022
    Inventors: Gyou Jin CHO, Jun Feng SUN, Hye Jin PARK, Kiran SHRESTHA, Gyan RAJKOIRALA, You Shin KIM, Pravesh YADAV, Sajjan PARAJULI, Welsey Prince VANARAJ, Amol Marotrao KALE, Jinhwa PARK, Sunggeun LEE