Patents by Inventor Cheol Woo Lim

Cheol Woo Lim 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).

  • Non-contact durability diagnosis apparatus and method
    Patent number: 10222354
    Abstract: A non-contact durability diagnosis apparatus includes: (a) applying non-contactly and sequentially at least two excitation ultrasonic waves to an object and storing frequency signals generated from the object; (b) applying non-contactly and simultaneously the at least two excitation ultrasonic waves to the object and storing frequency signals generated from the object; (c) storing derived frequency signals remaining after removing an overlapping portion of the frequency signals of step (a) and the frequency signals of step (b); and (d) determining that the object is damaged when at least one of the generated frequency signals of step (c) is larger than a predetermined value.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: March 5, 2019
    Assignees: Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Jae Roung Park, Cheol Woo Lim, Byeong-Jin Park, Byeongju Song, Hoon Sohn
  • NON-CONTACT DURABILITY DIAGNOSIS APPARATUS AND METHOD
    Publication number: 20170023530
    Abstract: A non-contact durability diagnosis apparatus includes: (a) applying non-contactly and sequentially at least two excitation ultrasonic waves to an object and storing frequency signals generated from the object; (b) applying non-contactly and simultaneously the at least two excitation ultrasonic waves to the object and storing frequency signals generated from the object; (c) storing derived frequency signals remaining after removing an overlapping portion of the frequency signals of step (a) and the frequency signals of step (b); and (d) determining that the object is damaged when at least one of the generated frequency signals of step (c) is larger than a predetermined value.
    Type: Application
    Filed: December 1, 2015
    Publication date: January 26, 2017
    Inventors: Jae Roung Park, Cheol Woo Lim, Byeong-Jin Park, Byeongju Song, Hoon Sohn