Patents by Inventor Chang-Seong YUN

Chang-Seong YUN 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).

  • SOUND-ABSORBING NON-COMBUSTIBLE CEILING MATERIAL AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20220316208
    Abstract: A sound-absorbing non-combustible ceiling material and a method for manufacturing the same are disclosed. The method (S100) for manufacturing the sound-absorbing non-combustible ceiling material installed in a ceiling of a building includes a panel processing step (S1000) of processing each of a first panel including a metal and a second panel absorbing a sound wave; and a panel attaching step (S2000) of attaching the first panel and the second panel. The first panel includes a plurality of openings, and the first panel and the second panel are coupled by an adhesive layer to form the sound-absorbing non-combustible ceiling material.
    Type: Application
    Filed: May 28, 2021
    Publication date: October 6, 2022
    Applicant: ZENFIX CO., LTD.
    Inventors: Young Chul KWON, Seong-Hee CHOI, Chang-Seong YUN