Patents by Inventor Jong Hwa Choi

Jong Hwa 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: 11939489
    Abstract: Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: March 26, 2024
    Assignees: POSCO CO., LTD, NOROO COIL COATINGS CO., LTD.
    Inventors: Chang-Hoon Choi, Dong-Yun Kim, Min-Ho Jo, Jae-Duck Ko, Won-Ho Son, Jong-Hwa Kim
  • Patent number: 11909062
    Abstract: A battery pack is provided including a battery module having a plurality of battery cells or a unit module having the plurality of battery cells; a battery pack frame body including a base plate on which the battery module or the unit module is mounted, and a first side plate and a second side plate connected to the base plate and disposed to face each other; a top frame coupled to an upper portion of the battery pack frame body; and a first end plate and a second end plate electrically connected to electrode terminals of the battery module or the unit module, wherein at least one of the first end plate and the second end plate is configured to include slits.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: February 20, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Seung Ryul Baek, Jeong Pyo Kong, Jong Hwa Choi
  • Publication number: 20230369716
    Abstract: A battery module has increased safety against fire or gas explosion. The battery module includes: a plurality of battery cells; and a module housing including a cell receiver configured to accommodate the plurality of battery cells therein and including an outlet through which gas discharged from the plurality of battery cells is discharged, and a gas venting unit configured to cover a side of the cell receiver and including a gas inlet through which gas discharged from the outlet is introduced, a gas channel including a path through which gas introduced through the gas inlet moves, and a gas outlet communicating with the gas channel and provided at a position facing an outer circumferential portion of the cell receiver.
    Type: Application
    Filed: June 8, 2022
    Publication date: November 16, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Ju-Hwan SHIN, Dong-Hyun KIM, Tae-Geun KIM, Jong-Hwa CHOI, Hyoung-Suk LEE
  • Publication number: 20230318130
    Abstract: A battery module includes a plurality of battery cells having electrode leads on at least one side; a module housing having an accommodation space in which the plurality of battery cells is received, the module housing including an exit port on the at least one side having the electrode leads of the plurality of battery cells, the exit port through gas vented from the plurality of battery cells exits; and a gas venting member configured to cover at least one side of the module housing, the gas venting member having a passage along which the gas coming out of the exit port moves.
    Type: Application
    Filed: June 14, 2022
    Publication date: October 5, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Ju-Hwan SHIN, Dong-Hyun KIM, Tae-Geun KIM, Jong-Hwa CHOI, Hyoung-Suk LEE
  • Publication number: 20230246311
    Abstract: A battery module includes a case and a connection terminal including at least one pair of a positive electrode terminal and a negative electrode terminal disposed at a middle part of each of opposite side surfaces of the case. Each of the positive electrode terminal and the negative electrode terminal protrudes outwards. The positive electrode terminal, a gap between the positive electrode terminal and the negative electrode terminal, and the negative electrode terminal are disposed at equal intervals based on the center of the case.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 3, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Tae Geun KIM, Sang Wook YIM, Hyuk AN, Jong Hwa CHOI, Hyoung Suk LEE, YOUNG IL YOON
  • Publication number: 20230246256
    Abstract: A battery module includes a battery cell stack constituted by stacked pouch-shaped battery cells, a busbar coupled to an electrode lead of each of the pouch-shaped battery cells, a housing configured to fix a position of the busbar, and a sensing unit coupled to the housing. The sensing unit is attached to a first surface of the housing that faces the battery cell stack and to a second surface of the housing, the second surface being an outer surface opposite to the first surface.
    Type: Application
    Filed: June 9, 2022
    Publication date: August 3, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyuk An, Sang Wook Yim, Tae Geun Kim, Jong Hwa Choi, Hyoung Suk Lee, Young II Yoon
  • Publication number: 20210184306
    Abstract: A battery pack is provided including a battery module having a plurality of battery cells or a unit module having the plurality of battery cells; a battery pack frame body including a base plate on which the battery module or the unit module is mounted, and a first side plate and a second side plate connected to the base plate and disposed to face each other; a top frame coupled to an upper portion of the battery pack frame body; and a first end plate and a second end plate electrically connected to electrode terminals of the battery module or the unit module, wherein at least one of the first end plate and the second end plate is configured to include slits.
    Type: Application
    Filed: October 4, 2019
    Publication date: June 17, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Seung Ryul BAEK, Jeong Pyo KONG, Jong Hwa CHOI
  • Patent number: 10770758
    Abstract: Disclosed is a cable-type secondary battery, including: a winding core having guide portions formed by intaglio or relief in a spiral shape on the surface thereof; a sheet-type first inner electrode formed on the outside of the winding core surface between the guide portions by spiral winding; a sheet-type first separation layer formed on the outside of the first inner electrode by spiral winding; a sheet-type second inner electrode formed on the outside of the first separation layer by spiral winding; a second separation layer formed on the outside of the second inner electrode by spiral winding; and an outer electrode formed on the outside of the second separation layer by spiral winding.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: September 8, 2020
    Assignee: LG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Jong-Hwa Choi, Suk-In Noh, Dong-Chan Lee
  • Patent number: 10770732
    Abstract: Disclosed is a cable-type secondary battery, including: a winding core; an inner electrode support wound on the outside of the winding core in the form of a spaced spring so that the winding core may be exposed partially; a sheet-type first inner electrode formed on the outside of the exposed winding core by spiral winding; a sheet-type first separation layer formed on the outside of the first inner electrode by spiral winding; a sheet-type second inner electrode formed on the outside of the first separation layer by spiral winding; a second separation layer formed on the outside of the second inner electrode by spiral winding; and an outer electrode formed on the outside of the second separation layer by spiral winding.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: September 8, 2020
    Assignee: LG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Jong-Hwa Choi, Suk-In Noh, Young-Ji Yuk
  • Patent number: 10490840
    Abstract: The present disclosure relates to a cable-type secondary battery having improved performance and capable of alleviating stress caused by external force. The present disclosure provides provided a sheet-type electrode assembly which includes: an electrode array including an inner electrode, a first separator, a double-sided electrode, a second separator and an outer electrode stacked successively; and a support layer formed integrally on at least one surface of the electrode array by compression, and a cable-type secondary battery including the same.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Suk-In Noh, Dong-Chan Lee, In-Sung Uhm, Je-Young Kim, Jong-Hwa Choi
  • Publication number: 20180309133
    Abstract: Disclosed is a cable-type secondary battery, including: a winding core; an inner electrode support wound on the outside of the winding core in the form of a spaced spring so that the winding core may be exposed partially; a sheet-type first inner electrode formed on the outside of the exposed winding core by spiral winding; a sheet-type first separation layer formed on the outside of the first inner electrode by spiral winding; a sheet-type second inner electrode formed on the outside of the first separation layer by spiral winding; a second separation layer formed on the outside of the second inner electrode by spiral winding; and an outer electrode formed on the outside of the second separation layer by spiral winding.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 25, 2018
    Applicant: LG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Jong-Hwa Choi, Suk-In Noh, Young-Ji Yuk
  • Publication number: 20180309153
    Abstract: The present disclosure relates to a cable-type secondary battery having improved performance and capable of alleviating stress caused by external force. The present disclosure provides provided a sheet-type electrode assembly which includes: an electrode array including an inner electrode, a first separator, a double-sided electrode, a second separator and an outer electrode stacked successively; and a support layer formed integrally on at least one surface of the electrode array by compression, and a cable-type secondary battery including the same.
    Type: Application
    Filed: September 9, 2016
    Publication date: October 25, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Suk-In Noh, Dong-Chan Lee, In-Sung Uhm, Je-Young Kim, Jong-Hwa Choi
  • Publication number: 20180294532
    Abstract: Disclosed is a cable-type secondary battery, including: a winding core having guide portions formed by intaglio or relief in a spiral shape on the surface thereof; a sheet-type first inner electrode formed on the outside of the winding core surface between the guide portions by spiral winding; a sheet-type first separation layer formed on the outside of the first inner electrode by spiral winding; a sheet-type second inner electrode formed on the outside of the first separation layer by spiral winding; a second separation layer formed on the outside of the second inner electrode by spiral winding; and an outer electrode formed on the outside of the second separation layer by spiral winding.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 11, 2018
    Applicant: LG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Jong-Hwa Choi, Suk-In Noh, Dong-Chan Lee
  • Patent number: 9705553
    Abstract: A mobile terminal has a waterproof sheet interposed between a first body portion and a second body portion. The waterproof sheet is formed with a curved shaped or step-like cross-section in consideration of characteristic of internal component or a battery arranged on the first body portion of the mobile terminal, the curved shaped or step-like cross-section is configured to encase, in part or in whole, the internal component or the battery.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: July 11, 2017
    Assignee: Pantech Inc.
    Inventors: Byoung Ho Song, Kyu Jin Yeon, Jong Hwa Choi
  • Publication number: 20160329924
    Abstract: A mobile terminal has a waterproof sheet interposed between a first body portion and a second body portion. The waterproof sheet is formed with a curved shaped or step-like cross-section in consideration of characteristic of internal component or a battery arranged on the first body portion of the mobile terminal, the curved shaped or step-like cross-section is configured to encase, in part or in whole, the internal component or the battery.
    Type: Application
    Filed: July 18, 2016
    Publication date: November 10, 2016
    Inventors: Byoung Ho SONG, Kyu Jin YEON, Jong Hwa CHOI
  • Patent number: 9395760
    Abstract: A mobile terminal has a waterproof sheet interposed between a first body portion and a second body portion. The waterproof sheet is formed with a curved shaped or step-like cross-section in consideration of characteristic of internal component or a battery arranged on the first body portion of the mobile terminal, the curved shaped or step-like cross-section is configured to encase, in part or in whole, the internal component or the battery.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 19, 2016
    Assignee: Pantech Co., Ltd.
    Inventors: Byoung Ho Song, Kyu Jin Yeon, Jong Hwa Choi
  • Publication number: 20150253814
    Abstract: A mobile terminal has a waterproof sheet interposed between a first body portion and a second body portion. The waterproof sheet is formed with a curved shaped or step-like cross-section in consideration of characteristic of internal component or a battery arranged on the first body portion of the mobile terminal, the curved shaped or step-like cross-section is configured to encase, in part or in whole, the internal component or the battery.
    Type: Application
    Filed: May 22, 2015
    Publication date: September 10, 2015
    Inventors: Byoung Ho SONG, Kyu Jin YEON, Jong Hwa CHOI
  • Patent number: 9042095
    Abstract: A mobile terminal has a waterproof sheet interposed between a first body portion and a second body portion. The waterproof sheet is formed with a curved shaped or step-like cross-section in consideration of characteristic of internal component or a battery arranged on the first body portion of the mobile terminal, the curved shaped or step-like cross-section is configured to encase, in part or in whole, the internal component or the battery.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 26, 2015
    Assignee: Pantech Co., Ltd.
    Inventors: Byoung Ho Song, Kyu Jin Yeon, Jong Hwa Choi
  • Patent number: 8619671
    Abstract: Provided is a method and apparatus for transmitting and receiving data using a polarization transmission in a line-of-sight (LOS) radio communication system. An for transmitting data using a polarization transmission in a LOS radio communication system may include: an antenna unit including at least two antennas to transmit or receive via a different polarization path; a polarization data setting unit to set the different polarization path for each of the at least two antennas; and a resource allocation unit to set a transmission scheme according to a data characteristic and a service type, and to allocate a resource to be transmitted via the different polarization path according to the transmission scheme.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 31, 2013
    Assignee: Electronics and Telecommuniations Research Institute
    Inventors: Hyoung Jin Kwon, Jin Kyeong Kim, Woo Yong Lee, Yong Sun Kim, Kyeongpyo Kim, Dongyong Lee, Jong Hwa Choi
  • Publication number: 20130058018
    Abstract: A mobile terminal has a waterproof sheet interposed between a first body portion and a second body portion. The waterproof sheet is formed with a curved shaped or step-like cross-section in consideration of characteristic of internal component or a battery arranged on the first body portion of the mobile terminal, the curved shaped or step-like cross-section is configured to encase, in part or in whole, the internal component or the battery.
    Type: Application
    Filed: March 22, 2012
    Publication date: March 7, 2013
    Applicant: PANTECH CO., LTD.
    Inventors: Byoung Ho SONG, Kyu Jin YEON, Jong Hwa CHOI