Patents by Inventor Hye Rim Choi

Hye Rim Choi 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).

  • Steel sheet for hot press and manufacturing method thereof
    Patent number: 11225050
    Abstract: Disclosed is a steel sheet for hot press forming, which includes: a base steel sheet; and a plating layer disposed on the base steel sheet and including a diffusion layer and a surface layer that are sequentially laminated, wherein the diffusion layer includes an Fe—Al alloy layer and an Fe—Al intermetallic compound layer that are sequentially disposed on the base steel sheet and each include silicon, and an area fraction of the Fe—Al intermetallic compound layer with respect to the diffusion layer is 84.5% to 98.0%.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: January 18, 2022
    Assignee: Hyundai Steel Company
    Inventors: Sung Min Kim, Hye Rim Choi
  • STEEL SHEET FOR HOT PRESS AND MANUFACTURING METHOD THEREOF
    Publication number: 20210402740
    Abstract: Disclosed is a steel sheet for hot press forming, which includes: a base steel sheet; and a plating layer disposed on the base steel sheet and including a diffusion layer and a surface layer that are sequentially laminated, wherein the diffusion layer includes an Fe—Al alloy layer and an Fe—Al intermetallic compound layer that are sequentially disposed on the base steel sheet and each include silicon, and an area fraction of the Fe—Al intermetallic compound layer with respect to the diffusion layer is 84.5% to 98.0%.
    Type: Application
    Filed: December 2, 2020
    Publication date: December 30, 2021
    Inventors: Sung Min Kim, Hye Rim Choi