Patents by Inventor Dong-Cheol Lee

Dong-Cheol 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: 20240127892
    Abstract: There are provided a memory device and an operating method of the memory device. The memory device includes: a memory block including a plurality of sub-blocks; a peripheral circuit for performing first program and erase operations in a first manner in a first sub-block, among the plurality of sub-blocks, and performing second program and erase operations in a second manner in a second sub-block, among the plurality of sub-blocks; and a control circuit configured to, when a cycling number of the second program and erase operations that are performed in the second sub-block is equal to or greater than a reference number, control the peripheral circuit to perform a compensation operation that compensates for a threshold voltage of memory cells included in the first sub-block.
    Type: Application
    Filed: April 6, 2023
    Publication date: April 18, 2024
    Applicant: SK hynix Inc.
    Inventors: Dong Uk LEE, Yun Cheol KIM, Hae Chang YANG
  • Publication number: 20240108536
    Abstract: A thermo-therapeutic apparatus and a method for controlling the same are provided.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Applicant: CERAGEM CO., LTD
    Inventors: Dong Myoung LEE, Ki Sung KIM, Sang Cheol HAN, Jin Cheol PARK
  • Patent number: 11086066
    Abstract: The present invention provides an integrated optical sheet module where an optical sheet is integrally formed without a diffusion sheet, a condensing sheet and a reflective polarizing sheet thereby reducing the overall thickness and improving the viewing angle, so that a manufacturing process can be simplified and significantly improve the left to right viewing angle while minimizing the brightness drop by forming the first base film having the viewing angle improvement component on the bottom surface with a haze characteristic.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 10, 2021
    Assignee: LMS CO., LTD
    Inventors: Jee Hong Min, Se Jin Oh, Dong Cheol Lee, Woo Jong Lee, Jin Yeon Choi, Min Ho Kim, Du Yi Kim
  • Patent number: 10996500
    Abstract: The present disclosure relates to an optical sheet having improved optical properties and minimized surface spots. According to one aspect of the present disclosure, provided is an optical sheet comprising: a first prism sheet which has a plurality of prisms parallel in a first direction formed on one surface thereof; and a diffusion sheet which is positioned at the surface side into which light of the first prism sheet is incident and has a plurality of protrusions formed on the surface facing the first prism sheet.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: May 4, 2021
    Assignee: LMS CO., LTD
    Inventors: Jee Hong Min, Ki Wook Lee, Byoung Hun Lee, Tae Jun Lee, Dong Cheol Lee, Se Jin Oh
  • Patent number: 10818957
    Abstract: Disclosed herein is a method of manufacturing a battery pack including a battery cell having an electrode assembly received in a battery case, made of a laminate sheet including a resin layer and a metal layer, together with an electrolytic solution. An upper case, a PCB, and a battery cell are simultaneously coupled to each other through a hot-melt process without using additional members, such as double-sided adhesive tape and a PCM case. In particular, a label can be removed from an embedded type battery pack. Consequently, it is possible to improve manufacturing efficiency and reduce manufacturing cost due to the reduction in the number of parts.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: October 27, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Bum Jick Lee, Soo Jun Ahn, Dong Cheol Lee, Yong Ho Cho, Jae Hyeon Ju
  • Publication number: 20200292747
    Abstract: The present invention provides an integrated optical sheet module where an optical sheet is integrally formed without a diffusion sheet, a condensing sheet and a reflective polarizing sheet thereby reducing the overall thickness and improving the viewing angle, so that a manufacturing process can be simplified and significantly improve the left to right viewing angle while minimizing the brightness drop by forming the first base film having the viewing angle improvement component on the bottom surface with a haze characteristic.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 17, 2020
    Applicant: LMS Co., Ltd
    Inventors: Jee Hong MIN, Se Jin OH, Dong Cheol LEE, Woo Jong LEE, Jin Yeon CHOI, Min Ho KIM, Du Yi KIM
  • Patent number: 10388938
    Abstract: Disclosed herein is a secondary battery pack including an anode terminal and a cathode terminal of a battery cell connected to a protection circuit module (PCM), the anode terminal and the cathode terminal of the battery cell being made of plate-shaped conductive members, the battery cell having the anode terminal and the cathode terminal formed at one end thereof, the battery cell having a thermally bonded surplus part formed at the end thereof at which the anode terminal and the cathode terminal are formed, and the PCM including a protection circuit board (PCB) having a protection circuit formed thereon, an external input and output terminal connected to the protection circuit of the PCB, and an electrically insulative PCM case configured to have a hollow structure in which the PCB is mounted, the PCM case being provided with a slit, through which the electrode terminals of the battery cell are inserted, the PCM being loaded on the thermally bonded surplus part of the battery cell in a state in which the PC
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: August 20, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Soo Jun Ahn, Dong Cheol Lee, Tae Wook Kim
  • Patent number: 10374200
    Abstract: Disclosed herein is a battery pack configured to have a structure including a plate-shaped battery cell having electrode terminals formed at one side thereof including a sealed surplus part and a protection circuit module (PCM) mounted at the sealed surplus part, wherein each of the electrode terminals of the battery cell is made of a plate-shaped conductive member, the PCM includes a protection circuit board (PCB), a safety element electrically connected between one of the electrode terminals of the battery cell and the PCB or loaded on the PCB, an external input and output terminal electrically connected to a protection circuit of the PCB, and an electrically insulative module case in which the PCB and the safety element are mounted in a state in which the external input and output terminal extends outside, the module case includes a PCB receiving part open outward at one side thereof and at least one fixing part to mount the module case to the sealed surplus part of the battery cell, and the PCM is loaded
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 6, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Mi Geum Choi, Dong Cheol Lee, Jong Woon Choi
  • Patent number: 10319962
    Abstract: A secondary battery pack is provided that includes a battery cell array configured to have a structure in which two or more battery cells, each of which includes electrode terminals and a thermally bonded surplus portion formed at the side thereof at which the electrode terminals are formed, are arranged side by side, a protection circuit module (PCM), the PCM being loaded on the thermally bonded surplus portions of the battery cells, a cartridge frame including two or more battery cell location parts for fixing the two battery cells, respectively, each of the battery cell location parts being formed in a frame shape, and a sheathing label attached to the cartridge frame such that the sheathing label wraps the cartridge frame in a state in which the battery cells, to which the PCM is connected, are fixed in the cartridge frame.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: June 11, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Han Chul Kim, Dong Cheol Lee
  • Patent number: 10302854
    Abstract: A display apparatus includes a display panel including a display area with a curved surface, a backlight assembly which provides light to the display panel, and a bottom cover which accommodates the display panel and the backlight assembly. The bottom cover includes a bottom portion, a sidewall portion bent from a side portion of the bottom portion, and a ceiling portion bent from the sidewall portion to face the bottom portion. The backlight assembly includes a light source part disposed in an engaging space defined by the bottom portion, the sidewall portion, and the ceiling portion to emit the light, and a light guide part which guides the light emitted from the light source part to the display panel.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: May 28, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-cheol Lee, Seki Park
  • Patent number: 10263267
    Abstract: Disclosed herein is a method of manufacturing a battery pack including a battery cell having an electrode assembly received in a battery case, made of a laminate sheet including a resin layer and a metal layer, together with an electrolytic solution.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 16, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Bum Jick Lee, Soo Jun Ahn, Dong Cheol Lee, Yong Ho Cho, Jae Hyeon Ju
  • Patent number: 10222641
    Abstract: A display apparatus includes a display panel and a first protection member which accommodates the display panel. The first protection member includes first sidewalls facing each other and second sidewalls connected to ends of the first sidewalls to face each other. The first and second sidewalls are disposed to surround a side surface of the display panel, the first sidewalls are curved symmetrical to each other, and a distance between central portions of the first sidewalls facing each other is a minimum distance between the first sidewalls, and a distance between ends of the first sidewalls facing each other is a maximum distance between the first sidewalls.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-cheol Lee, Tae-chang Kim, Seki Park, Myunghun Baek
  • Patent number: 10191203
    Abstract: A stacking-type optical sheet module includes an upper optical sheet having a first structural pattern with first unit light-condensing bodies successively repeated and cross-sectional areas gradually decreasing towards the top. A lower optical sheet has a second structural pattern and is below the upper optical sheet in a stack. Second and third unit light-condensing bodies are successively disposed in the second structural pattern. The second unit bodies have a gradually decreasing cross-sectional area toward the top and are joined with the upper optical sheet, and the third unit bodies have a gradually decreasing cross-sectional area toward the top, a vertical distance from a lowest to a highest portion thereof being relatively shorter than a corresponding vertical distance of the second unit bodies. A vertical angle of the highest portion of the second unit bodies is relatively smaller than a vertical angle of the highest portion of the third unit bodies.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: January 29, 2019
    Assignee: LMS CO., LTD
    Inventors: Sung Sik Cho, Dong Cheol Lee, Tae Jun Lee, Hee Jeong Kim
  • Patent number: 10170742
    Abstract: Disclosed herein is a battery pack including an electrically insulative pack case. The battery pack includes a plate-shaped battery cell having an anode terminal and a cathode terminal formed at one side thereof including a sealed surplus portion, the battery cell being formed to have a planar quadrangular structure, a protection circuit module (PCM) electrically connected to the electrode terminals of the battery cell to control operation of the battery pack, the PCM being loaded on the sealed surplus portion of the battery cell, and a pack case applied to the sealed surplus portion of the battery cell, the PCM, and opposite sides of the battery cell in a thermally molten state and solidified, the pack case being configured to have a structure to cover the sealed surplus portion of the battery cell, the PCM, and the opposite sides of the battery cell in a state in which the top and bottom of the battery cell are open.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: January 1, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Han Chul Kim, Dong Cheol Lee, Ho Yul Jeong
  • Patent number: 10170802
    Abstract: Disclosed herein is a battery pack configured to have a structure including a plate-shaped battery cell having electrode terminals formed at one side thereof including a sealed surplus part and a protection circuit module (PCM) mounted at the sealed surplus part, wherein each of the electrode terminals of the battery cell is made of a plate-shaped conductive member, the PCM includes a protection circuit board (PCB), a safety element electrically connected between one of the electrode terminals formed at one side of the battery cell and the PCB or loaded on the PCB, an external input and output terminal electrically connected to a protection circuit of the PCB, and an electrically insulative module case in which the PCB and the safety element are mounted in a state in which the external input and output terminal extends outside, the module case is configured to have a structure in which two outer surfaces of the module case are open outward to form a first open surface and a second open surface, the module cas
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 1, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Mi Geum Choi, Hyung Ku Yun, Dong Cheol Lee
  • Patent number: 10132984
    Abstract: Disclosed is an optical sheet assembly comprising: a first optical sheet which comprises a first base film and a first optical pattern formed on the first base film, light being incident on the first base film; a second optical sheet which comprises a second base film and a second optical pattern formed on the second base film, the light exiting from the first optical sheet being incident thereon; and a third optical sheet which comprises a third base film and a third optical pattern formed on the third base film, the light exiting from the second optical sheet being incident thereon, wherein the first to third optical patterns perform light condensing or diffusing function, the first optical sheet is joined with the second optical sheet, and the second optical sheet is joined with the third optical sheet.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: November 20, 2018
    Assignee: LMS CO., LTD
    Inventors: Sung Sik Cho, Dong Cheol Lee, Tae Jun Lee, Hee Jeong Kim, Ki Wook Lee, Jang Hee Cho, Byoung Hun Lee
  • Publication number: 20180166736
    Abstract: Disclosed herein is a method of manufacturing a battery pack including a battery cell having an electrode assembly received in a battery case, made of a laminate sheet including a resin layer and a metal layer, together with an electrolytic solution. An upper case, a PCB, and a battery cell are simultaneously coupled to each other through a hot-melt process without using additional members, such as double-sided adhesive tape and a PCM case. In particular, a label can be removed from an embedded type battery pack. Consequently, it is possible to improve manufacturing efficiency and reduce manufacturing cost due to the reduction in the number of parts.
    Type: Application
    Filed: April 15, 2016
    Publication date: June 14, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Bum Jick LEE, Soo Jun AHN, Dong Cheol LEE, Yong Ho CHO, Jae Hyeon JU
  • Publication number: 20180120626
    Abstract: The present disclosure relates to an optical sheet having improved optical properties and minimized surface spots. According to one aspect of the present disclosure, provided is an optical sheet comprising: a first prism sheet which has a plurality of prisms parallel in a first direction formed on one surface thereof; and a diffusion sheet which is positioned at the surface side into which light of the first prism sheet is incident and has a plurality of protrusions formed on the surface facing the first prism sheet.
    Type: Application
    Filed: March 24, 2016
    Publication date: May 3, 2018
    Applicant: LMS Co., Ltd.
    Inventors: Jee Hong MIN, Ki Wook LEE, Byoung Hun LEE, Tae Jun LEE, Dong Cheol LEE, Se Jin OH
  • Publication number: 20170294664
    Abstract: Disclosed herein is a method of manufacturing a battery pack including a battery cell having an electrode assembly received in a battery case, made of a laminate sheet including a resin layer and a metal layer, together with an electrolytic solution.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 12, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Bum Jick LEE, Soo Jun AHN, Dong Cheol LEE, Yong Ho CHO, Jae Hyeon JU
  • Patent number: 9693422
    Abstract: A curved display device comprises a display panel which includes a display area portion having a curved shape and a plurality of corner portions located on the outside of the display area portion where the plurality of corner portions is curved towards the display area portion in a plan view.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: June 27, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seki Park, Jooyoung Kim, Dong-cheol Lee