Patents by Inventor Sang Hyo KWEON

Sang Hyo KWEON 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).

  • Method of manufacturing piezoelectric thin film and piezoelectric sensor manufactured using piezoelectric thin film
    Patent number: 10950781
    Abstract: Disclosed are a method of manufacturing a piezoelectric thin film and a piezoelectric sensor manufactured using the piezoelectric thin film. A piezoelectric sensor according to an embodiment of the present disclosure includes a substrate; a lower electrode formed on the substrate; a two-dimensional perovskite nanosheet seed layer formed on the lower electrode; a ceramic piezoelectric thin film formed on the two-dimensional perovskite nanosheet seed layer; and an upper electrode formed on the ceramic piezoelectric thin film, wherein each of the two-dimensional perovskite nanosheet seed layer and the ceramic piezoelectric thin film has a crystal structure.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 16, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Sahn Nahm, Jong Hyun Kim, Sang Hyo Kweon, Woong Hee Lee
  • METHOD OF MANUFACTURING PIEZOELECTRIC THIN FILM AND PIEZOELECTRIC SENSOR MANUFACTURED USING PIEZOELECTRIC THIN FILM
    Publication number: 20200052190
    Abstract: Disclosed are a method of manufacturing a piezoelectric thin film and a piezoelectric sensor manufactured using the piezoelectric thin film. A piezoelectric sensor according to an embodiment of the present disclosure includes a substrate; a lower electrode formed on the substrate; a two-dimensional perovskite nanosheet seed layer formed on the lower electrode; a ceramic piezoelectric thin film formed on the two-dimensional perovskite nanosheet seed layer; and an upper electrode formed on the ceramic piezoelectric thin film, wherein each of the two-dimensional perovskite nanosheet seed layer and the ceramic piezoelectric thin film has a crystal structure.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 13, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Sahn NAHM, Jong Hyun KIM, Sang Hyo KWEON, Woong Hee LEE