Patents by Inventor Eun Gook Kim

Eun Gook Kim 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).

  • Publication number: 20230069876
    Abstract: In accordance with an embodiment, a noise reduction device includes a housing; and a slit located inside the housing and having a unit cell located therein, the unit cell comprising a sound absorbing layer configured to absorb noise generated from a sound source inside the housing, and a meta-material panel layer located on one surface of the sound absorbing layer, the meta-material panel layer comprising a sound meta-material.
    Type: Application
    Filed: August 31, 2022
    Publication date: March 9, 2023
    Inventors: Jin Ho Hwang, Ji Ah Kim, Min Ho Cho, Byoung Chul Park, Young Hwan Yoon, Kang Ho Cheon, Eun Gook Kim, Young Don Choi, Jin Woo Lee