Patents by Inventor Yeol Choi

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: 11098160
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having a large molecular weight and exhibiting colorless and transparent properties.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 24, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sung Yeol Choi, Byung Guk Kim, Sang Gon Kim, Duk Hun Jang, Hyung Sam Choi
  • 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
  • Publication number: 20210242545
    Abstract: The present invention provides an electrode assembly, which can reduce resistance and improve a process property, a secondary battery including same, and a method for manufacturing same. For example, disclosed is an electrode assembly comprising: a first electrode plate having a first electrode tab attached thereto: a plurality of second electrode plates having second electrode tabs attached thereto, respectively, and a separator interposed between the first electrode plate and the plurality of second electrode plates, wherein the first electrode plate, the separator, and the plurality of second electrode plates are wound in a state of being stacked on one another, and the second electrode tabs are formed to be symmetrical to each other on the basis of a winding center thereof.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 5, 2021
    Inventors: Hyun Ki JEONG, Min Yeol CHOI
  • Publication number: 20210189068
    Abstract: The polyamide-imide copolymer according to the present disclosure makes it possible to provide a polyamide-imide film that is excellent in both thermal stability and mechanical properties, and is capable of realizing anisotropy.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 24, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Yunah YU, Hyung Sam CHOI, Byung Guk KIM, Young Sik EOM, Sung Yeol CHOI, Sang Gon KIM, Duk Hun JANG
  • Patent number: 11037721
    Abstract: A power inductor includes a substrate having a through hole in a central portion thereof; a first internal coil pattern and a second internal coil pattern each having a spiral shape and provided on opposite surfaces of the substrate outwardly of the through hole; a magnetic body enclosing the substrate on which the first internal coil pattern and the second internal coil pattern are provided, end portions of the first internal coil pattern and the second internal coil pattern being exposed to opposite end surfaces thereof; a first external electrode and a second external electrode provided on the opposite end surfaces of the magnetic body to be connected to the end portions of the first internal coil pattern and the second internal coil pattern, respectively; and an anti-plating layer covering the magnetic body between the first external electrode and the second external electrode.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: June 15, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Youn Kyu Choi, Hea Ah Kim, Jae Yeol Choi
  • Patent number: 11031186
    Abstract: A capacitor component includes a plurality of unit laminates, each comprising a body with a stacked structure including a plurality of internal electrodes and connection electrodes that extend in a stacking direction of the body and electrically connect to the plurality of internal electrodes, and pad portions between adjacent unit laminates to electrically connect the respective connection electrodes of the unit laminates above and below the pad portions to each other.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Taek Jung Lee, Jin Kyung Joo, Hyo Youn Lee, Won Young Lee, Sung Kwon An, Jae Yeol Choi, Jin Man Jung
  • Patent number: 11031184
    Abstract: A capacitor component includes: a body including first and second internal electrodes alternately disposed in a first direction; first and second connection electrodes extending in the first direction in the body, respectively connected to the first and second internal electrodes, and opposing each other in a second direction; and first and second external electrodes disposed on one surface of the body and respectively connected to the first and second connection electrodes and each include an extended pattern disposed at one end portion on the one surface in the second direction and extending in a third direction, and a connection pattern extending, in the second direction, from a region spaced apart from both ends of the extended pattern in the third direction and connected to one of the first and second connection electrodes in a region spaced apart from opposite ends of the extended pattern in the third direction.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Do Heung Na, Min Gon Lee, Jin Kyung Joo, Byeong Chan Kwon, Taek Jung Lee, Jin Man Jung, Jae Yeol Choi
  • Publication number: 20210166880
    Abstract: A multilayer ceramic electronic component includes: a ceramic body and first and second external electrodes on external surfaces of the ceramic body. The ceramic body includes first and second internal electrodes facing each other with dielectric layers interposed therebetween. The ceramic body includes an active portion in which capacitance is formed and cover portions on upper and lower surfaces of the active portion, respectively. The ratio of the thickness of the first and second external electrodes to the thickness of the cover portion is proportional to the inverse of the cube root of the ratio of the Young's Modulus of each of the first and second external electrodes to the Young's modulus of the cover portion.
    Type: Application
    Filed: February 17, 2021
    Publication date: June 3, 2021
    Inventors: Min Gon LEE, Seung Woo SONG, Jae Yeol CHOI, Jin Kyung JOO, Taek Jung LEE, Jin Man JUNG
  • Publication number: 20210107425
    Abstract: A curtain airbag system of a vehicle is provided and omits a front or rear pillar area of a roof/side frame for a space for accommodating an airbag cushion. The airbag cushion is guided by a connection tether for a deployment direction to deploy the airbag cushion to a protection zone for an occupant. Additionally, the airbag cushion is folded in a zigzag form to expose the connection tether, thereby guiding the airbag cushion for the deployment direction and securing a deployment speed.
    Type: Application
    Filed: March 19, 2020
    Publication date: April 15, 2021
    Inventor: Jun Yeol Choi
  • Patent number: 10978250
    Abstract: A capacitor includes a body having a first surface, a second surface, and a third surface and a fourth surface connecting the first surface to the second surface, and including a first internal electrode and a second internal electrode respectively having a first lead portion and a second lead portion exposed to the second surface, a first external electrode and a second external electrode formed on the second surface of the body, and electrically connected to the first internal electrode and the second internal electrode, respectively, and dummy electrodes formed on the third surface and the fourth surface of the body and extending from edges at which the second surface meets the third surface and the fourth surface.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: April 13, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hye Young Choi, Jae Yeol Choi, Hyun Hee Gu, Bum Su Kim
  • Patent number: 10971308
    Abstract: A multilayer capacitor includes a body and external electrodes on external surfaces of the body. The body includes a plurality of internal electrodes alternately laminated with dielectric layers. The external electrodes are electrically connected to the internal electrodes. Edges of cover portions of the body are rounded. The rounded edges have a radius of curvature R and the body has a thickness T, such that R and T satisfy 10 ?m?R?T/4. Among the plurality of internal electrodes, an internal electrode in each of the cover portions has a width less than that of an internal electrode of the central portion.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD
    Inventors: Byeong Gyu Park, Yong Jin Yun, So Ra Kang, Jae Yeol Choi
  • Patent number: 10957488
    Abstract: A multilayer ceramic electronic component includes: a ceramic body and first and second external electrodes on external surfaces of the ceramic body. The ceramic body includes first and second internal electrodes facing each other with dielectric layers interposed therebetween. The ceramic body includes an active portion in which capacitance is formed and cover portions on upper and lower surfaces of the active portion, respectively. The ratio of the thickness of the first and second external electrodes to the thickness of the cover portion is proportional to the inverse of the cube root of the ratio of the Young's Modulus of each of the first and second external electrodes to the Young's modulus of the cover portion.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: March 23, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Min Gon Lee, Seung Woo Song, Jae Yeol Choi, Jin Kyung Joo, Taek Jung Lee, Jin Man Jung
  • 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
  • Patent number: 10940826
    Abstract: A passenger airbag inflator for a vehicle includes: a housing having a first gunpowder therein, including a vent hole, and communicating with an airbag cushion; a first chamber located in a first side inner space of the housing, having a first booster and a first igniter, and configured to be triggered forwardly when the first igniter is ignited; and a second chamber located in a second side inner space of the housing, having a second booster and a second gunpowder, including a second igniter, and configured to be triggered forwardly when the second igniter is ignited.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: March 9, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jun Yeol Choi
  • Patent number: 10943736
    Abstract: A method of manufacturing a multilayer ceramic electronic component which includes preparing first and second ceramic green sheets; forming an internal electrode pattern on the first ceramic green sheet using a conductive metal paste; forming a ceramic member on first and second end portions of a first surface of the second ceramic green sheet to form a step portion absorption layer; stacking two or more of the first ceramic green sheets on each other in a stacking direction to form a first group; stacking two or more of the first ceramic green sheets on each other in the stacking direction to form a second group; and placing the second ceramic green sheet between the first group and the second group in the stacking direction to form a ceramic body, wherein the first and second end portions oppose each other in a first direction perpendicular to the stacking direction.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: March 9, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seung Ho Lee, Jae Yeol Choi, Ki Pyo Hong, Beom Seock Oh
  • Patent number: 10923179
    Abstract: A memory device includes a page with plurality of memory cells and a peripheral circuit that performs at least one program loop. The at least one program loop includes a program voltage applying phase for applying, during a program operation, a program voltage to a word line to which the plurality of memory cells are coupled and a program verify phase for determining whether a selected memory cell among the plurality of memory cells has been completely programmed. The memory device includes control logic that controls the peripheral circuit to: perform an auxiliary verify operation of applying an auxiliary verify voltage to the word line; perform a main verify operation of applying a main verify voltage larger than the auxiliary verify voltage to the word line; and determine a fail of the program operation, based on verify data obtained by performing the auxiliary verify operation and the main verify operation.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: February 16, 2021
    Assignee: SK hynix Inc.
    Inventors: Young Jin Woo, Won Yeol Choi
  • Patent number: 10923264
    Abstract: An electronic component includes a magnetic body, and a coil pattern embedded in the magnetic body and including internal coil parts having a spiral shape and lead parts connected to ends of the internal coil parts and externally exposed from the magnetic body. A thickness of each of the lead parts is formed to be thinner than a thickness of each of the internal coil parts.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: February 16, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Jin Jeong, Jae Yeol Choi
  • Patent number: 10892100
    Abstract: A multilayer capacitor includes a connecting electrode provided on a surface opposite to a surface on which the capacitor body is mounted, and a third external electrode and a fourth external electrode extend to cover opposing ends of the connecting electrode across a width of the capacitor body. The third and fourth external electrodes are disposed on respective side surfaces of the capacitor body opposite each other across the width, and contact respective first and second pluralities of internal electrodes disposed in the capacitor body.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 12, 2021
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae Hyeok Kim, Sang Soo Park, Jae Yeol Choi
  • Publication number: 20210005384
    Abstract: A multilayer ceramic capacitor has a body including first and second internal electrodes laminated with a dielectric layer interposed therebetween, and having fifth and sixth surfaces opposing each other, third and fourth surfaces opposing each other, and first and second surfaces opposing each other. A first through-electrode penetrates through the body to be connected to the first internal electrode, and a second through-electrode penetrates through the body to be connected to the second internal electrode. First and second external electrodes are disposed on the first and second surfaces, respectively, and third and fourth external electrodes are disposed on the first and second surfaces, respectively, to be spaced apart from the first and second external electrodes. Each of the first to fourth external electrodes is a respective sintered electrode including nickel.
    Type: Application
    Filed: March 5, 2020
    Publication date: January 7, 2021
    Inventors: Taek Jung LEE, Min Gon LEE, Jin Kyung JOO, Ji Hong JO, Jae Yeol CHOI