Patents by Inventor Sujung Son

Sujung Son 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).

  • Metal material having improved corrosion resistance and method of improving corrosion resistance of metal material surface using oxygen reduction catalyst
    Patent number: 11925922
    Abstract: The present invention relates to a method of improving the corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, which may improve the corrosion resistance of the metal substrate surface by coating the metal substrate surface with the oxygen reduction catalyst so that the metal substrate surface is changed to a passive state through the action of the oxygen reduction catalyst in an environment in which a stable oxide layer is not spontaneously formed on the metal substrate surface. The present invention has an advantage in that it can dramatically improve the corrosion resistance of the metal substrate under a corrosive environment by allowing a recoverable oxide layer to be formed on the metal substrate surface through the action of the oxygen reduction catalyst, applied to the surface, even in an environment in which an oxide layer is not spontaneously formed on the metal substrate.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: March 12, 2024
    Assignee: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Yong-Tae Kim, Jaeik Kwak, Hyoung Seop Kim, Sujung Son, Sang-Mun Jung
  • METAL MATERIAL HAVING IMPROVED CORROSION RESISTANCE AND METHOD OF IMPROVING CORROSION RESISTANCE OF METAL MATERIAL SURFACE USING OXYGEN REDUCTION CATALYST
    Publication number: 20230044742
    Abstract: The present invention relates to a method of improving the corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, which may improve the corrosion resistance of the metal substrate surface by coating the metal substrate surface with the oxygen reduction catalyst so that the metal substrate surface is changed to a passive state through the action of the oxygen reduction catalyst in an environment in which a stable oxide layer is not spontaneously formed on the metal substrate surface. The present invention has an advantage in that it can dramatically improve the corrosion resistance of the metal substrate under a corrosive environment by allowing a recoverable oxide layer to be formed on the metal substrate surface through the action of the oxygen reduction catalyst, applied to the surface, even in an environment in which an oxide layer is not spontaneously formed on the metal substrate.
    Type: Application
    Filed: March 7, 2022
    Publication date: February 9, 2023
    Inventors: Yong-Tae Kim, Jaeik Kwak, Hyoung Seop Kim, Sujung Son, Sang-Mun Jung