Patents by Inventor Woo Ha Kim

Woo Ha Kim 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: 20240147642
    Abstract: In a display device including unfoldable areas and a foldable area between the unfoldable areas, the display device includes: a window; a display panel under the window; a fingerprint detection sensor configured to generate signals for fingerprint recognition in a direction toward the display panel in any one of the unfoldable areas; a first support member supporting the display panel under the display panel and between the display panel and the fingerprint detection sensor; a second support member supporting the display panel under the first support member and having an opening overlapping the fingerprint detection sensor; and a reinforcing member overlapping the opening of the second support member and between the first support member and the fingerprint detection sensor, wherein the reinforcing member includes glass.
    Type: Application
    Filed: August 10, 2023
    Publication date: May 2, 2024
    Inventors: Ji Hun RYU, Woo Young KIM, Yun Ha KIM, Bon Joo KOO, Jae Young YU
  • Patent number: 11943976
    Abstract: A display device includes a substrate, a first conductive layer on the substrate, the first conductive layer including a data signal line, a first insulating layer on the first conductive layer, a semiconductor layer on the first insulating layer, the semiconductor layer including a first semiconductor pattern, a second insulating layer on the semiconductor layer, and a second conductive layer on the second insulating layer, the second conductive layer including a gate electrode disposed to overlap the first semiconductor pattern, a transistor first electrode disposed to overlap a part of the first semiconductor pattern, wherein the transistor first electrode is electrically connected to the data signal line through a contact hole that penetrates the first and second insulating layers, and a transistor second electrode disposed to overlap another part of the first semiconductor pattern.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Sok Son, Woo Geun Lee, Seul Ki Kim, Kap Soo Yoon, Hyun Woong Baek, Jae Hyun Lee, Su Jung Jung, Jung Kyoung Cho, Seung Ha Choi, June Whan Choi
  • Publication number: 20230348734
    Abstract: Provided is a conductive material dispersion comprising single-walled carbon nanotubes, a dispersant, a dispersion aid, and a dispersion medium, wherein the dispersant comprises polyvinyl butyral and hydrogenated nitrile butadiene rubber, and the dispersion aid comprises a compound represented by Formula 1. A-(R)n??[Formula 1] In Formula 1, A is a structure having a carbon number of 16 to 50 carbon number and comprising four or more aromatic rings and nitrogen, R is a structure comprising an anionic functional group, and n is an integer of 1 to 5.
    Type: Application
    Filed: May 25, 2022
    Publication date: November 2, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyo Sook Joo, Houng Sik Yoo, Dong Hyun Kim, Il Jae Moon, Hyeon Choi, Woo Ha Kim, Sung Soo Yoon
  • Patent number: 11764345
    Abstract: Disclosed is a coating apparatus for producing an electrode, which has a reduced defect rate in the coating process. The coating apparatus includes a die unit having an inlet through which the electrode slurry is introduced and an inner space for accommodating the introduced electrode slurry; a shim unit mounted in the die unit and configured to form an outlet together with the die unit so that the electrode slurry is discharged therethrough; and a cover member configured to surround an outer surface of the die unit and the shim unit so that the electrode slurry is not leaked at the outer surface, except for the outlet.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: September 19, 2023
    Inventors: Woo-Ha Kim, In-Seong Kim, Il-Jae Moon, Byoung-Hoon Ahn, Jung-Min Yang, Sang-Hoon Choy
  • Publication number: 20220200075
    Abstract: Provided are a reuse method of electrode scrap and a method of fabricating a recycled electrode using the same. The reuse method of electrode scrap of the present disclosure includes (a) dry milling electrode scrap remaining after punching an electrode sheet including an active material layer on a current collector to obtain milled products; and (b) screening active material layer flakes from current collector fragments in the milled products by sieving the milled products, and collecting the screened active material layer flakes to obtain reusable particles.
    Type: Application
    Filed: July 14, 2020
    Publication date: June 23, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jun-Muk LIM, Joo-Yul BAEK, Hee-Seok SONG, Seong-Keun JANG, Woo-Ha KIM, Sang-Hoon CHOY
  • Publication number: 20220173402
    Abstract: The present technology relates to a manufacturing method for an electrode binder, comprising a step of dissolving pelletized polyvinylidene fluoride (PVDF) in a solvent; and an electrode assembly comprising the electrode binder. The present invention may provide an electrode assembly which has a low content of impurities in a binder solution, is capable of increasing dispersibility of an electrode active material, and exhibits excellent binding force.
    Type: Application
    Filed: July 3, 2020
    Publication date: June 2, 2022
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Seong Keun JANG, Woo Ha KIM, Sang Hoon CHOY, In Seong KIM, Sung Pil YOON
  • Publication number: 20210313552
    Abstract: Disclosed is a coating apparatus for producing an electrode, which has a reduced defect rate in the coating process. The coating apparatus includes a die unit having an inlet through which the electrode slurry is introduced and an inner space for accommodating the introduced electrode slurry; a shim unit mounted in the die unit and configured to form an outlet together with the die unit so that the electrode slurry is discharged therethrough; and a cover member configured to surround an outer surface of the die unit and the shim unit so that the electrode slurry is not leaked at the outer surface, except for the outlet.
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Woo-Ha Kim, In-Seong Kim, Il-Jae Moon, Byoung-Hoon Ahn, Jung-Min Yang, Sang-Hoon Choy
  • Patent number: 11127936
    Abstract: Disclosed is a coating apparatus for producing an electrode, which has a reduced defect rate in the coating process. The coating apparatus includes a die unit having an inlet through which the electrode slurry is introduced and an inner space for accommodating the introduced electrode slurry; a shim unit mounted in the die unit and configured to form an outlet together with the die unit so that the electrode slurry is discharged therethrough; and a cover member configured to surround an outer surface of the die unit and the shim unit so that the electrode slurry is not leaked at the outer surface, except for the outlet.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 21, 2021
    Inventors: Woo-Ha Kim, In-Seong Kim, Il-Jae Moon, Byoung-Hoon Ahn, Jung-Min Yang, Sang-Hoon Choy
  • Patent number: 11033865
    Abstract: Disclosed is a dissolution mixer, which includes: a dissolution bath configured to accommodate a powder and a solvent for dissolving the powder; a powder input unit located at an outer side of the dissolution bath; an impeller installed to be rotatable inside the dissolution bath; and an anchor located inside the dissolution bath and having a passage of the powder inputted by the powder input unit and a powder spouting hole connected to the passage.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: June 15, 2021
    Inventors: Jin-Young Son, Hwi-Soo Yang, Woo-Ha Kim, Sang-Hoon Choy
  • Publication number: 20210083336
    Abstract: The present invention relates to a method of reusing a positive electrode material, and more particularly, the method includes: inputting a positive electrode for a lithium secondary battery comprising a current collector, and a positive electrode active material layer formed on the current collector and including a first positive electrode active material, a first binder and a first conducting agent, into a solvent; separating at least a portion of the positive electrode active material layer from the current collector; adding second binder powder to the solvent and performing primary mixing a resulting mixture; and preparing a positive electrode material slurry by adding a second positive electrode active material and a second conducting agent to the solvent and performing secondary mixing a resulting mixture.
    Type: Application
    Filed: May 8, 2019
    Publication date: March 18, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Joo Yul BAEK, Woo Ha KIM, In Seong KIM, Jun Muk LIM, Sang Hoon CHOY
  • Publication number: 20200227719
    Abstract: Disclosed is a coating apparatus for producing an electrode, which has a reduced defect rate in the coating process. The coating apparatus includes a die unit having an inlet through which the electrode slurry is introduced and an inner space for accommodating the introduced electrode slurry; a shim unit mounted in the die unit and configured to form an outlet together with the die unit so that the electrode slurry is discharged therethrough; and a cover member configured to surround an outer surface of the die unit and the shim unit so that the electrode slurry is not leaked at the outer surface, except for the outlet.
    Type: Application
    Filed: June 27, 2018
    Publication date: July 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Woo-Ha Kim, In-Seong Kim, Il-Jae Moon, Byoung-Hoon Ahn, Jung-Min Yang, Sang-Hoon Choy
  • Publication number: 20200127281
    Abstract: Provided is a method for preparing positive electrode slurry for a lithium secondary battery which includes the steps of: adding a positive electrode active material, a conductive material, a binder polymer and a dispersing agent to a solvent and mixing them to obtain slurry having a solid content of 69-74 wt %; dispersing the slurry primarily for 50 minutes to 100 minutes so that the migration rate of the solid content may be 3-6 m/s; and dispersing the slurry secondarily for 5 minutes to 20 minutes so that the migration rate of the solid content may be 14-27 m/s, wherein the migration rate of the solid content is the migration length of the solid content caused by the force applied to the slurry in the dispersion system used for dispersing the slurry as a function of time.
    Type: Application
    Filed: June 26, 2018
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Il-Jae Moon, Woo-Ha Kim, Byoung-Hoon Ahn, Sang-Hoon Choy
  • Publication number: 20190134572
    Abstract: Disclosed is a dissolution mixer, which includes: a dissolution bath configured to accommodate a powder and a solvent for dissolving the powder; a powder input unit located at an outer side of the dissolution bath; an impeller installed to be rotatable inside the dissolution bath; and an anchor located inside the dissolution bath and having a passage of the powder inputted by the powder input unit and a powder spouting hole connected to the passage.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 9, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Jin-Young SON, Hwi-Soo YANG, Woo-Ha KIM, Sang-Hoon CHOY
  • Patent number: 9859551
    Abstract: The present disclosure refers to an anode for a secondary battery that comprises a low-temperature additive, and an electrochemical device using the anode. More specifically, the present disclosure provides a carbon-based anode material comprising a low-temperature additive such as lithium titanium oxide (LTO) to improve low-temperature output characteristics, thereby providing high output at room temperature and even a low temperature, and an electrochemical device using the anode.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 2, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Hyun-Kyung Do, Yo-Jin Kim, Woo-Ha Kim, Soul-Gie Hong, Joo-Young Choi, Hyun-Soo Kwon, Kang-Kun Kim, Hyun-Chul Roh
  • Patent number: 9816685
    Abstract: Provided is a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition may be applied as a light diffusing or scattering material to various display devices or lighting apparatuses.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: November 14, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Woo Ha Kim, Se Woo Yang, Suk Ky Chang
  • Patent number: 9556365
    Abstract: Provided are a pressure-sensitive adhesive composition for a touch panel, a conductive film, a touch panel and a pressure-sensitive adhesive film. The exemplary pressure-sensitive adhesive composition for a touch panel, the conductive film or the pressure-sensitive adhesive film has excellent durability and optical properties such as transparency. In addition, such physical properties are stably maintained under severe conditions. Particularly, a pressure-sensitive adhesive layer is attached to a conductor thin film, and thus resistance change of the conductor thin film is effectively inhibited even when the conductor thin film is exposed to the severe conditions. Therefore, the pressure-sensitive adhesive composition may be effectively used to manufacture a touch panel.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: January 31, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Min Soo Park, Se Woo Yang, Suk Ky Chang, Woo Ha Kim, Yoon Tae Hwang
  • Patent number: 9556364
    Abstract: Provided are a pressure-sensitive adhesive composition for a touch panel, a conductive film, a touch panel and a pressure-sensitive adhesive film. The exemplary pressure-sensitive adhesive composition for a touch panel, the conductive film or the pressure-sensitive adhesive film has excellent durability and optical properties such as transparency. In addition, such physical properties are stably maintained under severe conditions. Particularly, a pressure-sensitive adhesive layer is attached to a conductor thin film, and thus resistance change of the conductor thin film is effectively inhibited even when the conductor thin film is exposed to the severe conditions. Therefore, the pressure-sensitive adhesive composition may be effectively used to manufacture a touch panel.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: January 31, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Min Soo Park, Se Woo Yang, Suk Ky Chang, Woo Ha Kim, Yoon Tae Hwang
  • Publication number: 20160268589
    Abstract: The present disclosure refers to an anode for a secondary battery that comprises a low-temperature additive, and an electrochemical device using the anode. More specifically, the present disclosure provides a carbon-based anode material comprising a low-temperature additive such as lithium titanium oxide (LTO) to improve low-temperature output characteristics, thereby providing high output at room temperature and even a low temperature, and an electrochemical device using the anode.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 15, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Hyun-Kyung DO, Yo-Jin KIM, Woo-Ha KIM, Soul-Gie HONG, Joo-Young CHOI, Hyun-Soo KWON, Kang-Kun KIM, Hyun-Chul ROH
  • Patent number: 9431659
    Abstract: Provided are an electrode binder for a secondary battery including an amine-based compound expressed by Chemical Formula 1 below and water-based binder particles including at least one carboxyl group as an end group, a method of preparing the same, and an electrode for a secondary battery including the electrode binder for a secondary battery
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: August 30, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jang Bae Kim, Im Goo Choi, Byoung Bae Lee, Woo Ha Kim, Bong Hyun Jeong, Kyoung Hun Kim, Ji Hye Yang
  • Patent number: 9175193
    Abstract: The present invention relates to an adhesive sheet, a manufacturing method thereof, an optical filter and a plasma display panel. The present invention provides an adhesive sheet having an excellent base adhesion property through a hydroxyl group applied to a base film and an isocyanate-based compound contained in an adhesive layer through a corona processing. Accordingly, the present invention provides an adhesive sheet having an excellent base adhesion property and improved high temperature stability by using a carboxyl group-containing acryl-based copolymer having a high glass transition temperature. Further, the adhesive sheet of the present invention contains a siloxane-based compound if needed, thus preventing an initial peeling force from being increased.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: November 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Woo Ha Kim, Hyo Jin Jeong, In Cheon Han, Se Ra Kim