Patents by Inventor Juchul LEE

Juchul 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).

  • Publication number: 20230312762
    Abstract: The method for producing a nanocellulose support comprises coating a container with surface-treated nanocellulose solution, forming a nanocellulose film by drying the coated nanocellulose solution, and modifying the surface properties of the nanocellulose film by means of electron beam irradiation. According to an embodiment, the production of nanocellulose supports using the drying method allows substrates of various shapes to be coated and has simple processes, thus allowing mass production and production of over-sized supports.
    Type: Application
    Filed: July 29, 2020
    Publication date: October 5, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Koun PARK, Hongcheol LEE, Eunseck KANG, Kyungho JUNG, Sanggeun CHO, Juchul LEE, Misun LEE, Eunja LIM
  • Publication number: 20220302555
    Abstract: Disclosed are a separator for a lithium ion secondary battery, a method for producing the same, and a secondary battery using the same. A separator structure includes a support disposed inside a secondary battery. The support includes a porous polymer matrix, cellulose nano fibers dispersed in the matrix, and inorganic additives dispersed in the matrix, wherein at least some of the inorganic additives are attached to the cellulose nano fibers and are distributed in the matrix.
    Type: Application
    Filed: January 4, 2022
    Publication date: September 22, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Dongwook Lee, Munhyuk Lim, Hongjung Kim, Kyungho Jung, Juchul Lee, Junhan Kwon, Keeyong Kim, Sumin Lee, Yongkeon Ahn, Youngmin Pi
  • Publication number: 20220013870
    Abstract: A lead tab for a secondary battery, according to an embodiment of the present invention, includes a metal lead having a long rectangular plate shape in a first direction, a first insulation film formed on a lower surface of the metal lead in a second direction crossing the first direction, and a second insulation film formed on an upper surface of the metal lead in the second direction so as to correspond to the first insulation film, wherein each of the first insulation film and the second insulation film has a magnetic member which is induction-heated by an alternating magnetic field.
    Type: Application
    Filed: November 23, 2018
    Publication date: January 13, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Soongil KIM, Jongdeok KIM, Juchul LEE, Hongcheol LEE
  • Publication number: 20210359375
    Abstract: The present disclosure is applicable to the technical field related to a secondary battery, and relates to, for example, a separator structure for the secondary battery, a method for preparing the same, and the secondary battery using the same. A separator structure disposed inside a secondary battery includes a porous support body including a first face and a second face, and a cellulose nano fiber subjected to an ionic surface treatment located on at least one of the first face and the second face of the support body.
    Type: Application
    Filed: May 13, 2021
    Publication date: November 18, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Eunja LIM, Hongcheol LEE, Eunseck KANG, Juchul LEE, Koun PARK, Misun LEE
  • Patent number: 10852584
    Abstract: The embodiment relates to a quantum dot-polymer composite and a method for producing the same, wherein the quantum dot-polymer composite includes: a first phase made of a matrix resin; a second phase dispersed and distributed in the first phase, comprising a quantum dot, and having a spherical shape; and a micro scattering agent distributed in an interface between the first phase and the second phase along a surface of the second phase.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 1, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Byoungkwon Cho, Jinmok Oh, Dongseon Jang, Juchul Lee
  • Patent number: 10090367
    Abstract: A display device includes at least one light-emitting element configured to emit blue light, a red conversion layer disposed on an upper or lower portion of the at least one light-emitting element and including a red light-emitting quantum dot, a green conversion layer disposed on the upper or lower portion of the at least one light-emitting element and including a green light-emitting phosphor, and a substrate comprising thin film transistors electrically connected to the light-emitting element.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: October 2, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Moongoo Choi, Jinwoo Sung, Juchul Lee, Koun Park
  • Publication number: 20180105658
    Abstract: The embodiment relates to a quantum dot-polymer composite and a method for producing the same, wherein the quantum dot-polymer composite includes: a first phase made of a matrix resin; a second phase dispersed and distributed in the first phase, comprising a quantum dot, and having a spherical shape; and a micro scattering agent distributed in an interface between the first phase and the second phase along a surface of the second phase.
    Type: Application
    Filed: January 22, 2016
    Publication date: April 19, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Byoungkwon CHO, Jinmok OH, Dongseon JANG, Juchul LEE
  • Publication number: 20170352714
    Abstract: A display device includes at least one light-emitting element configured to emit blue light, a red conversion layer disposed on an upper or lower portion of the at least one light-emitting element and including a red light-emitting quantum dot, a green conversion layer disposed on the upper or lower portion of the at least one light-emitting element and including a green light-emitting phosphor, and a substrate comprising thin film transistors electrically connected to the light-emitting element.
    Type: Application
    Filed: January 6, 2015
    Publication date: December 7, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Moongoo CHOI, Jinwoo SUNG, Juchul LEE, Koun PARK