Patents by Inventor Jeoung Sik Choi

Jeoung Sik 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).

  • ANTIFERROELECTRIC CONTAINING DYSPROSIUM AND A MANUFACTURING METHOD THEREOF
    Publication number: 20240124363
    Abstract: An antiferroelectric and a method for manufacturing an antiferroelectric are disclosed herein. The antiferroelectric may have high permittivity and breakdown voltage by having a PbxLa1-x([Zr1-YSnY]ZTi1-Z) composition. The manufacturing of the antiferroelectric may be performed through appropriate mixing and dysprosium addition.
    Type: Application
    Filed: July 26, 2023
    Publication date: April 18, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY
    Inventors: Hyung Suk Kim, Hyo Soon Shin, Dong Hun Yeo, Jeoung Sik Choi
  • HIGH-VOLTAGE ANTIFERROELECTRIC AND MANUFACTURING METHOD THEREOF
    Publication number: 20230307182
    Abstract: A high-voltage antiferroelectric and a method for manufacturing the same are provided. The antiferroelectric has a composition of PbxLa1-x([Zr1-YSnY]ZTi1-Z). The antiferroelectric is sintered at a low temperature, and has a high density and a high breakdown voltage.
    Type: Application
    Filed: January 31, 2023
    Publication date: September 28, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, AMOTECH CO., LTD., Korea Institute of Ceramic Engineering and Technology
    Inventors: Hyung Suk Kim, Sung Jin Hong, Hyun Jin Jo, Jae Woo Choi, Hyo Soon Shin, Dong Hun Yeo, Jeoung Sik Choi
  • HIGH PERMITTIVITY ANTIFERROELECTRIC AND MANUFACTURING METHOD THEREOF
    Publication number: 20230303452
    Abstract: A high permittivity antiferroelectric composition and a manufacturing method thereof aim to provide an antiferroelectric, which has a PbxLa1-x([Zr1-YSnY]ZTi1-Z) composition, is sintered at low temperatures, and has a high density and a high permittivity.
    Type: Application
    Filed: December 15, 2022
    Publication date: September 28, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY
    Inventors: Hyung Suk Kim, Hyo Soon Shin, Dong Hun Yeo, Jeoung Sik Choi
  • DIELECTRIC FOR A CAPACITOR AND A METHOD OF MANUFACTURING SAME
    Publication number: 20230073053
    Abstract: A method of manufacturing a dielectric for a capacitor and a dielectric for a capacitor manufactured thereby are provided. A dielectric for a capacitor is prepared by calcining a precursor mixture containing lead, lanthanum, zirconium, and titanium to produce calcined powder, adding additives including sodium, potassium, and the like to the powder, and sintering the mixture at a low temperature, whereby the dielectric has a high density and a large dielectric constant.
    Type: Application
    Filed: August 31, 2022
    Publication date: March 9, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA INSTITUTE OF CERAMIC ENGINEERING AND TECHNOLOGY
    Inventors: Hyungsuk Kim, Hyo Soon Shin, Dong Hun Yeo, Jeoung Sik Choi