Patents by Inventor Jea Yeol CHOI

Jea Yeol 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).

  • Patent number: 11145463
    Abstract: A multilayer capacitor includes a body, a plurality of internal electrodes, and an external electrode. A cover portion of the body has curved corners, and a radius of curvature, R, of each of the curved corners and a thickness, T, of the body satisfy a condition of 10 ?m?R?T/3, and a width, W, and a thickness, T, of the body satisfy a condition of T/W<0.8.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: October 12, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byeong Gyu Park, Yong Jin Yun, So Ra Kang, Jung Min Park, Jea Yeol Choi
  • Patent number: 11127531
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including an active layer, in which first and second internal electrodes are disposed with a dielectric layer interposed therebetween, the N number of each of the first and second internal electrodes being stacked to be alternately exposed from first and second external surfaces; and first and second external electrodes disposed on the first and second external surfaces of the ceramic body and connected to the first and second internal electrodes, respectively. The ceramic body further includes a cover layer disposed above or below the active layer. The cover layer includes a plurality of first and second dummy electrodes. A number (A>N) of the first and second dummy electrodes are stacked to be alternately exposed from the first and second external surfaces.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: September 21, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Hyeok Kim, Jea Yeol Choi, Sang Soo Park, Hwi Dae Kim, Young Jun Cha
  • Patent number: 11094469
    Abstract: A multilayer capacitor includes a body including a stacked structure of a plurality of dielectric layers and a plurality of internal electrodes, wherein, in the body, corners of cover portions are formed as curved surfaces, and 10 ?m?R?T/4 in which R is a radius of curvature of the curved surface corners and T is a thickness of the body, and 0.8?Tg/Wg?1.2 in which Wg is a margin of the body in a width direction, and Tg is a margin of the body in a thickness direction.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: August 17, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Jin Yun, Byeong Gyu Park, So Ra Kang, Jung Min Park, Jea Yeol Choi
  • Patent number: 11087923
    Abstract: A multi-layered ceramic capacitor capable of realizing an improved process yield and miniaturization while having an overvoltage protection function may be provided. The multi-layered ceramic capacitor may include a ceramic body including a first internal electrode, a second internal electrode, a dielectric layer, and an overvoltage protection layer; and an external electrode disposed at both ends of the ceramic body, wherein the overvoltage protection layer may be disposed between the first internal electrode and the second internal electrode.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: August 10, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Soo Hwan Son, Young Ghyu Ahn, Jea Yeol Choi
  • Patent number: 10950387
    Abstract: A multilayer capacitor includes a body including a stacked structure having dielectric layers, and internal electrodes, and external electrodes. The body has a central portion, and cover portions disposed above and below the central portion, the body has a first surface and a second surface to which the internal electrodes are exposed and which oppose each other, a third surface and a fourth surface which oppose each other in the stacking direction of the dielectric layers, and a fifth surface and a sixth surface which are connected to the first to fourth surfaces and oppose each other, and a surface roughness of each of the third to sixth surfaces of the body is greater than a surface roughness of each of the first and second surfaces of the body.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: March 16, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Jin Yeon, Jung Min Park, Byeong Gyu Park, So Ra Kang, Jea Yeol Choi
  • Publication number: 20210005392
    Abstract: A multilayer ceramic capacitor includes a body including a dielectric layer and first and second internal electrodes disposed with the dielectric layer interposed therebetween and disposed in point-symmetry with each other; first and second connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the first internal electrode; third and fourth connection electrodes penetrating the body in a direction perpendicular to the dielectric layer and connected to the second internal electrode; first and second external electrodes disposed on both surfaces of the body and connected to the first and second connection electrodes; and third and fourth external electrodes spaced apart from the first and second external electrodes and connected to the third and fourth connection electrodes, and the first and second internal electrodes include a region in which an electrode is not disposed.
    Type: Application
    Filed: April 22, 2020
    Publication date: January 7, 2021
    Inventors: Taek Jung LEE, Min Gon LEE, Jea Yeol CHOI, Jin Man JUNG, Jin Kyung JOO
  • Publication number: 20200152391
    Abstract: A multilayer capacitor includes a body including a stacked structure formed of a plurality of dielectric layers, and a plurality of internal electrodes, and external electrodes, wherein the body is divided into a central portion, and cover portions, the body has first to sixth surfaces, in the body, the cover portion forms corner edges having a curved surface, and if a radius of curvature of each of the corner edges at which the third and fourth surfaces meet the fifth and sixth surfaces refers to R1, and a radius of curvature of each of the corner edges at which the third and fourth surfaces meet the first and second surfaces refers to R2, a relationship of R1>R2 is satisfied, and a width of an internal electrode disposed in the cover portion is narrower than a width of an internal electrode disposed in the central portion.
    Type: Application
    Filed: September 6, 2019
    Publication date: May 14, 2020
    Inventors: So Ra KANG, Jung Min PARK, Byeong Gyu PARK, Yong Jin YEON, Jea Yeol CHOI
  • Publication number: 20200152390
    Abstract: A multilayer capacitor includes a body including a stacked structure having dielectric layers, and internal electrodes, and external electrodes. The body has a central portion, and cover portions disposed above and below the central portion, the body has a first surface and a second surface to which the internal electrodes are exposed and which oppose each other, a third surface and a fourth surface which oppose each other in the stacking direction of the dielectric layers, and a fifth surface and a sixth surface which are connected to the first to fourth surfaces and oppose each other, and a surface roughness of each of the third to sixth surfaces of the body is greater than a surface roughness of each of the first and second surfaces of the body.
    Type: Application
    Filed: August 6, 2019
    Publication date: May 14, 2020
    Inventors: Yong Jin YEON, Jung Min PARK, Byeong Gyu PARK, So Ra KANG, Jea Yeol CHOI
  • Publication number: 20200143990
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including an active layer, in which first and second internal electrodes are disposed with a dielectric layer interposed therebetween, the N number of each of the first and second internal electrodes being stacked to be alternately exposed from first and second external surfaces; and first and second external electrodes disposed on the first and second external surfaces of the ceramic body and connected to the first and second internal electrodes, respectively. The ceramic body further includes a cover layer disposed above or below the active layer. The cover layer includes a plurality of first and second dummy electrodes. A number (A>N) of the first and second dummy electrodes are stacked to be alternately exposed from the first and second external surfaces.
    Type: Application
    Filed: August 28, 2019
    Publication date: May 7, 2020
    Inventors: Tae Hyeok Kim, Jea Yeol Choi, Sang Soo Park, Hwi Dae Kim, Young Jun Cha
  • Publication number: 20200143989
    Abstract: A multi-layered ceramic capacitor capable of realizing an improved process yield and miniaturization while having an overvoltage protection function may be provided. The multi-layered ceramic capacitor may include a ceramic body including a first internal electrode, a second internal electrode, a dielectric layer, and an overvoltage protection layer; and an external electrode disposed at both ends of the ceramic body, wherein the overvoltage protection layer may be disposed between the first internal electrode and the second internal electrode.
    Type: Application
    Filed: September 12, 2019
    Publication date: May 7, 2020
    Inventors: Soo Hwan SON, Young Ghyu AHN, Jea Yeol CHOI
  • Publication number: 20200075258
    Abstract: A multilayer capacitor includes a body, a plurality of internal electrodes and external electrodes disposed on external surfaces of the body and electrically connected to the internal electrodes, wherein in the body, corners of cover portions include curved surfaces, and 10 ?m?R?T/4 in which R is a radius of curvature of the curved surface corners and T is a thickness of the body, and when a distance from a surface of the body to an internal electrode closest to the surface of the body among the plurality of internal electrodes is a margin, a margin (?) of each of the corners formed as the curved surfaces in the cover portions is greater than or equal to a margin (Wg) of the body in a width direction.
    Type: Application
    Filed: July 25, 2019
    Publication date: March 5, 2020
    Inventors: Byeong Gyu PARK, So Ra KANG, Yong Jin YUN, Jea Yeol CHOI, Jung Min PARK
  • Publication number: 20200075259
    Abstract: A multilayer capacitor includes a body, a plurality of internal electrodes, and an external electrode. A cover portion of the body has curved corners, and a radius of curvature, R, of each of the curved corners and a thickness, T, of the body satisfy a condition of 10 ?m?R?T/3, and a width, W, and a thickness, T, of the body satisfy a condition of T/W<0.8.
    Type: Application
    Filed: July 30, 2019
    Publication date: March 5, 2020
    Inventors: Byeong Gyu Park, Yong Jin Yun, So Ra Kang, Jung Min Park, Jea Yeol Choi
  • Publication number: 20200075260
    Abstract: A multilayer capacitor includes a body including a stacked structure of a plurality of dielectric layers and a plurality of internal electrodes, wherein, in the body, corners of cover portions are formed as curved surfaces, and 10 ?m?R?T/4 in which R is a radius of curvature of the curved surface corners and T is a thickness of the body, and 0.8?Tg/Wg?1.2 in which Wg is a margin of the body in a width direction, and Tg is a margin of the body in a thickness direction.
    Type: Application
    Filed: August 1, 2019
    Publication date: March 5, 2020
    Inventors: Yong Jin YUN, Byeong Gyu PARK, So Ra KANG, Jung Min PARK, Jea Yeol CHOI