Patents by Inventor Joeng Gil Seo

Joeng Gil Seo 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).

  • Composite photocatalyst structure, and photocatalytic filter and air purification device including the same
    Patent number: 11794173
    Abstract: A composite photocatalyst, a photocatalytic filter for air purification, and an air purification device that includes the photocatalytic filter. The composite photocatalyst includes: a first metal oxide particle; and second metal oxide particles arranged on a surface of the first metal oxide particle, wherein specific surface area of the second metal oxide particles is greater than specific surface area of the first metal oxide particle, and bandgap energy of the second metal oxide particles is greater than bandgap energy of the first metal oxide particle. The composite photocatalyst structure may degrade and remove gaseous pollutants under room temperature and atmospheric pressure conditions. The composite photocatalyst may be applied to various indoor and outdoor air purification systems in the form of a photocatalytic filter.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: October 24, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION
    Inventors: Sangmin Ji, Hyukjae Kwon, Minseok Koo, Sukeun Kuk, Dongsik Yang, Hyun Chul Lee, Joeng Gil Seo, Namjun So
  • COMPOSITE PHOTOCATALYST STRUCTURE, AND PHOTOCATALYTIC FILTER AND AIR PURIFICATION DEVICE INCLUDING THE SAME
    Publication number: 20220280923
    Abstract: A composite photocatalyst, a photocatalytic filter for air purification, and an air purification device that includes the photocatalytic filter. The composite photocatalyst includes: a first metal oxide particle; and second metal oxide particles arranged on a surface of the first metal oxide particle, wherein specific surface area of the second metal oxide particles is greater than specific surface area of the first metal oxide particle, and bandgap energy of the second metal oxide particles is greater than bandgap energy of the first metal oxide particle. The composite photocatalyst structure may degrade and remove gaseous pollutants under room temperature and atmospheric pressure conditions. The composite photocatalyst may be applied to various indoor and outdoor air purification systems in the form of a photocatalytic filter.
    Type: Application
    Filed: July 28, 2021
    Publication date: September 8, 2022
    Inventors: Sangmin Ji, Hyukjae Kwon, Minseok Koo, Sukeun Kuk, Dongsik Yang, Hyun Chul Lee, Joeng Gil Seo, Namjun So