Patents by Inventor Ku-Tak LEE

Ku-Tak LEE 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).

  • Multilayer electronic component including side margin portion having composition gradient across thickness thereof
    Patent number: 11915880
    Abstract: A multilayer electronic component includes a body including a plurality of dielectric layers, side margin portions disposed on the body, and external electrodes disposed on the body. The reliability of the multilayer electronic component is improved by controlling the contents of Si for each position of the dielectric layer and the side margin portion.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hee Sun Chun, Hyoung Uk Kim, Jae Sung Park, Hyeg Soon An, Ku Tak Lee, Eun Ha Jang
  • PIEZOELECTRIC ELEMENT, PIEZOELECTRIC DEVICE INCLUDING THE SAME, AND VIBRATION MODULE AND DISPLAY APPARATUS INCLUDING THE PIEZOELECTRIC DEVICE
    Publication number: 20230422625
    Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where (1?x)(LizNa0.5-zK0.5)(Nb1-ySby)O3·xCaZrO3 ??[Formula 1] where x, y, and z have a range of 0.001?x?0.2, a range of 0?y?0.5, and a range of 0?z?0.2, respectively.
    Type: Application
    Filed: September 5, 2023
    Publication date: December 28, 2023
    Applicants: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Taeheon KIM, Sahn Nahm, YongGyoon JANG, Jonghyun KIM, Ku-Tak LEE, Chiwan KIM, Sung-Eui SHIN, YongWoo LEE, Seok-June Chae
  • Piezoelectric element, piezoelectric device including the same, and vibration module and display apparatus including the piezoelectric device
    Patent number: 11812666
    Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where (1?x)(LizNa0.5-zK0.5)(Nb1-ySby)O3·xCaZrO3??[Formula 1] where x, y, and z have a range of 0.001?x?0.2, a range of 0?y?0.5, and a range of 0?z?0.2, respectively.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: November 7, 2023
    Assignees: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Taeheon Kim, Sahn Nahm, YongGyoon Jang, Jonghyun Kim, Ku-Tak Lee, Chiwan Kim, Sung-Eui Shin, YongWoo Lee, Seok-June Chae
  • PIEZOELECTRIC ELEMENT, PIEZOELECTRIC DEVICE INCLUDING THE SAME, AND VIBRATION MODULE AND DISPLAY APPARATUS INCLUDING THE PIEZOELECTRIC DEVICE
    Publication number: 20220406989
    Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where (1?x)(LizNa0.5-zK0.5)(Nb1-ySby)O3·xCaZrO3??[Formula 1] where x, y, and z have a range of 0.001?x?0.2, a range of 0?y?0.5, and a range of 0?z?0.2, respectively.
    Type: Application
    Filed: August 23, 2022
    Publication date: December 22, 2022
    Applicants: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Taeheon KIM, Sahn Nahm, YongGyoon JANG, Jonghyun KIM, Ku-Tak LEE, Chiwan KIM, Sung-Eui SHIN, YongWoo LEE, Seok-June Chae
  • Piezoelectric element, piezoelectric device including the same, and vibration module and display apparatus including the piezoelectric device
    Patent number: 11462675
    Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where (1-x)(LizNa0.5-zK0.5)(Nb1-ySby)O3.xCaZrO3??[Formula 1] where x, y, and z have a range of 0.001?x?0.2, a range of 0?y?0.5, and a range of 0?z?0.2, respectively.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: October 4, 2022
    Assignees: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Taeheon Kim, Sahn Nahm, YongGyoon Jang, Jonghyun Kim, Ku-Tak Lee, Chiwan Kim, Sung-Eui Shin, YongWoo Lee, Seok-June Chae
  • MULTILAYER ELECTRONIC COMPONENT
    Publication number: 20220230809
    Abstract: A multilayer electronic component includes a body including a plurality of dielectric layers, side margin portions disposed on the body, and external electrodes disposed on the body. The reliability of the multilayer electronic component is improved by controlling the contents of Si for each position of the dielectric layer and the side margin portion.
    Type: Application
    Filed: October 12, 2021
    Publication date: July 21, 2022
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hee Sun CHUN, Hyoung Uk KIM, Jae Sung PARK, Hyeg Soon AN, Ku Tak LEE, Eun Ha JANG
  • PIEZOELECTRIC ELEMENT, PIEZOELECTRIC DEVICE INCLUDING THE SAME, AND VIBRATION MODULE AND DISPLAY APPARATUS INCLUDING THE PIEZOELECTRIC DEVICE
    Publication number: 20200381613
    Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where (1-x)(LizNa0.5-zK0.5)(Nb1-ySby)O3.xCaZrO3??[Formula 1] where x, y, and z have a range of 0.001?x?0.2, a range of 0?y?0.5, and a range of 0?z?0.2, respectively.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 3, 2020
    Applicants: LG Display Co., Ltd., Korea University Research and Business Foundation
    Inventors: Taeheon KIM, Sahn Nahm, YongGyoon JANG, Jonghyun KIM, Ku-Tak LEE, Chiwan KIM, Sung-Eui SHIN, YongWoo LEE, Seok-June Chae