Patents by Inventor Chun Hee Seo

Chun Hee Seo 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: 11961679
    Abstract: A multilayer capacitor includes a body including a plurality of dielectric layers and a plurality of internal electrodes stacked in a first direction, and external electrodes, wherein the body includes an active portion, a side margin portion covering at least one of a first surface and a second surface of the active portion opposing each other in a second direction, and a cover portion covering the active portion in the first direction, respective dielectric layers among the plurality of dielectric layers include a barium titanate-based composition, the dielectric layer of the side margin portion includes Sn, and a content of Sn in the dielectric layer of the side margin portion is different from that of Sn in the dielectric layer of the active portion, and the dielectric layer of the side margin portion includes at least some grains having a core-shell structure.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Kim, Eun Jung Lee, Jong Suk Jeong, Chun Hee Seo, Jong Hoon Yoo, Tae Hyung Kim, Ho Sam Choi, Sim Chung Kang
  • Patent number: 11791098
    Abstract: A multilayer capacitor includes a body including a plurality of dielectric layers, and a plurality of internal electrodes stacked with one of the dielectric layers interposed therebetween, and external electrodes disposed on external surfaces of the body and connected to the internal electrodes, respectively. The plurality of dielectric layers include a dielectric expressed by empirical formula BaM1aTi1-xSnxM2bO3 (0.008?x?0.05, 0.006?a?0.03, and 0.0006?b<0.006) in which M1 includes a rare earth element, and M2 includes at least one of Mn or V.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Kim, Jong Suk Jeong, Jong Hoon Yoo, Chun Hee Seo, Jeong Wook Seo, Dong Geon Yoo, Dong Hun Kim, Su Been Kim
  • Patent number: 11657964
    Abstract: A multilayer capacitor includes a capacitor body including an active region having dielectric layers and internal electrodes alternately stacked therein, the capacitor body including upper and lower covers disposed on upper and lower surfaces of the active region, respectively; and an external electrode disposed on an external surface of the capacitor body. In one of the upper and lower covers, a portion thereof between a boundary surface of the active region and a boundary surface of the capacitor body is divided into a first cover region adjacent to the active region and a second cover region adjacent to the boundary surface of the capacitor body, and the first cover region includes grains having a core-shell structure doped with Sn. The first cover region includes 20% or more of Sn-doped core-shell structure grains, compared to the total of grains in the first cover region.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: May 23, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chun Hee Seo, Jong Suk Jeong, Jin Woo Kim, Tae Hyung Kim, Jeong Wook Seo, Dong Geon Yoo, Jong Hoon Yoo, Su Been Kim
  • Publication number: 20230145889
    Abstract: According to an aspect of the present disclosure, a capacitor component includes a body including a dielectric layer and an internal electrode layer; and an external electrode disposed on the body and connected to the internal electrode layer, wherein the body further includes a withstand voltage layer disposed in a region spaced apart by more than 0 to 30 nm or less in a direction from a boundary of the internal electrode layer toward the dielectric layer, and having ionic mobility, lower than ionic mobility of the dielectric layer.
    Type: Application
    Filed: April 5, 2022
    Publication date: May 11, 2023
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Hoon Yoo, Su Been Kim, Kyung Ryul Lee, Jong Suk Jeong, Chun Hee Seo, Dong Geon Yoo, Hyung Jun Kong
  • Publication number: 20220230807
    Abstract: A multilayer capacitor includes a body including a plurality of dielectric layers and a plurality of internal electrodes laminated with the dielectric layers interposed therebetween, and an external electrode disposed externally on the body and connected to one or more of the plurality of internal electrodes. One of the plurality of dielectric layers includes a barium titanate composition including a Sn component. One of the plurality of internal electrodes includes a Sn component. The one of the plurality of dielectric layers has a Sn content equal to at least twice a Sn content of the one of the plurality of internal electrodes adjacent to the one of the plurality of dielectric layers.
    Type: Application
    Filed: December 6, 2021
    Publication date: July 21, 2022
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Kim, Jong Suk Jeong, Chun Hee Seo, Jeong Wook Seo, Dong Geon Yoo, Tae Hyung Kim, Byung Kun Kim, Ki Yong Lee
  • Publication number: 20220199324
    Abstract: A multilayer capacitor includes a capacitor body including an active region having dielectric layers and internal electrodes alternately stacked therein, the capacitor body including upper and lower covers disposed on upper and lower surfaces of the active region, respectively; and an external electrode disposed on an external surface of the capacitor body. In one of the upper and lower covers, a portion thereof between a boundary surface of the active region and a boundary surface of the capacitor body is divided into a first cover region adjacent to the active region and a second cover region adjacent to the boundary surface of the capacitor body, and the first cover region includes grains having a core-shell structure doped with Sn. The first cover region includes 20% or more of Sn-doped core-shell structure grains, compared to the total of grains in the first cover region.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 23, 2022
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chun Hee SEO, Jong Suk JEONG, Jin Woo KIM, Tae Hyung KIM, Jeong Wook SEO, Dong Geon YOO, Jong Hoon YOO, Su Been KIM
  • Publication number: 20220189694
    Abstract: A multilayer capacitor includes a body including a plurality of dielectric layers, and a plurality of internal electrodes stacked with one of the dielectric layers interposed therebetween, and external electrodes disposed on external surfaces of the body and connected to the internal electrodes, respectively. The plurality of dielectric layers include a dielectric expressed by empirical formula BaM1aTi1-xSnxM2bO3 (0.008?x?0.05, 0.006?a?0.03, and 0.0006?b ?0.006) in which M1 includes a rare earth element, and M2 includes at least one of Mn or V.
    Type: Application
    Filed: November 18, 2021
    Publication date: June 16, 2022
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo KIM, Jong Suk JEONG, Jong Hoon YOO, Chun Hee SEO, Jeong Wook SEO, Dong Geon YOO, Dong Hun KIM, Su Been KIM
  • Publication number: 20220139632
    Abstract: A multilayer capacitor includes a body including a plurality of dielectric layers and a plurality of internal electrodes stacked in a first direction, and external electrodes, wherein the body includes an active portion, a side margin portion covering at least one of a first surface and a second surface of the active portion opposing each other in a second direction, and a cover portion covering the active portion in the first direction, respective dielectric layers among the plurality of dielectric layers include a barium titanate-based composition, the dielectric layer of the side margin portion includes Sn, and a content of Sn in the dielectric layer of the side margin portion is different from that of Sn in the dielectric layer of the active portion, and the dielectric layer of the side margin portion includes at least some grains having a core-shell structure.
    Type: Application
    Filed: November 2, 2021
    Publication date: May 5, 2022
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo KIM, Eun Jung Lee, Jong Suk Jeong, Chun Hee Seo, Jong Hoon Yoo, Tae Hyung Kim, Ho Sam Choi, Sim Chung Kang