Patents by Inventor Min Joon Lee

Min Joon 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).

  • Patent number: 11977703
    Abstract: A touch detection module, includes: a plurality of driving electrodes arranged side by side; a plurality of sensing electrodes staggered with respect to the driving electrodes; and a touch driving circuit configured to supply touch driving signals to the plurality of driving electrodes and to detect touch detection signals through the plurality of sensing electrodes to identify touch position coordinates, wherein the touch driving circuit is configured: to vary frequency modulation parameter set values in response to a change in a frequency of reference clocks, and to generate and supply a frequency of the touch driving signals by using the reference clocks and a varied frequency modulation parameter set value.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: May 7, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Woo Park, Min Hong Kim, Tae Joon Kim, Il Ho Lee, Wan Kee Jun
  • Publication number: 20240132375
    Abstract: A positive electrode active material for a lithium secondary battery has secondary micro particles having an average particle size (D50) of 1 to 10 ?m formed by agglomeration of primary macro particles having an average particle size (D50) of 0.5 to 3 ?m and a lithium-M oxide coating layer on all or part of a surface, wherein M is at least one selected from the group consisting of boron, cobalt, manganese and magnesium. The secondary macro particles have an average particle size (D50) of 5 to 20 ?m formed by agglomeration of primary micro particles having a smaller average particle size (D50) than the primary macro particles. The primary macro particles and the primary micro particles are represented by LiaNi1?b?c?dCobMncQdO2+?, wherein 1.0?a?1.5, 0<b<0.2, 0<c<0.2, 0?d?0.1, 0<b+c+d?0.2, ?0.1???1.0, and Q is at least one type of metal selected from the group consisting of Al, Mg, V, Ti and Zr.
    Type: Application
    Filed: January 14, 2022
    Publication date: April 25, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Eun-Sol Lho, Joong-Yeop Do, Kang-Joon Park, Gi-Beom Han, Min Kwak, Sang-Min Park, Dae-Jin Lee, Sang-Wook Lee, Wang-Mo Jung
  • Publication number: 20240134487
    Abstract: A touch sensor includes first touch cells disposed in a first touch sensing area, the first touch cells each including a first touch pattern and a first dummy pattern, and second touch cells disposed in a second touch sensing area, the second touch cells each including a second touch pattern and a second dummy pattern. An area of a first dummy pattern area in which the first dummy pattern is disposed is greater than an area of a second dummy pattern area in which the second dummy pattern is disposed.
    Type: Application
    Filed: January 2, 2024
    Publication date: April 25, 2024
    Inventors: Hyung Bae KIM, Min Hong KIM, Sang Kook KIM, Tae Joon KIM, Jae Hyun PARK, Ji Yeong LEE, Hyun Wook CHO
  • Publication number: 20240128490
    Abstract: The present invention provides an apparatus for manufacturing a secondary battery, which includes a pressing part configured to press a stack in which electrodes and separators are alternately disposed, wherein the pressing part includes: a main pressing part configured to press an entire surface of the stack; and a sub pressing part including a drum part configured to press a partial surface of the stack, on which an edge part of an electrode active material layer provided on each of the electrodes is disposed, on the entire surface, wherein the drum part includes: a body part having a rotational shaft; and an elastic part provided on an outer circumferential surface of the body part and configured to press the partial surface of the stack.
    Type: Application
    Filed: September 15, 2022
    Publication date: April 18, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Min Ha Yee, Ki Beom Park, Eui Seob Song, Zheng Hua Li, Hyo Joon Lee, Eun Ji Song
  • Publication number: 20240124323
    Abstract: A precursor for a positive electrode active material and a method of making the same are disclosed herein. In some embodiments, a method includes forming precursor seeds for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to a reaction solution, and growing precursor particles for a positive electrode active material from the precursor seeds by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to the reaction solution containing the precursor seeds, wherein feed rates for the transition metal aqueous solution and the ammonium cationic complexing agent to grow the precursor particles are two or more times greater than feed rates for the transition metal aqueous solution and the ammonium cationic complexing agent to grow the precursor seeds.
    Type: Application
    Filed: February 15, 2022
    Publication date: April 18, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Seong Ji Ye, Min Joon Lee, Yoon Bin Park
  • Patent number: 11961943
    Abstract: A semiconductor device including a semiconductor structure including a first semiconductor layer, a second semiconductor layer, and an active layer; a first electrode provided on a first surface of the first semiconductor layer; a second electrode provided on a first surface of the second semiconductor layer, the active layer being provided between the first surface of the first semiconductor layer and a second surface of the second semiconductor layer that is opposite to the first surface of the second semiconductor layer; a first insulation layer provided on the first surface of the first semiconductor layer, the first surface of the second semiconductor layer, and a side surface of the active layer; a first cover electrode provided on the first electrode; a second cover electrode provided on the second electrode, a second insulation layer provided on the first cover electrode, the second cover electrode, and the first insulation layer, wherein: the second insulation layer includes a first opening over the
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 16, 2024
    Assignee: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
    Inventors: Youn Joon Sung, Min Sung Kim, Eun Dk Lee
  • Publication number: 20240105934
    Abstract: A positive electrode active material for a lithium secondary battery has a mixture of microparticles having a predetermined average particle size (D50) and macroparticles having a larger average particle size (D50) than the microparticles. The microparticles have the average particle size (D50) of 1 to 10 ?m and are at least one selected from the group consisting of particles having a carbon material coating layer on all or part of a surface of primary macroparticles having an average particle size (D50) of 1 ?m or more, particles having a carbon material coating layer on all or part of a surface of secondary particles formed by agglomeration of the primary macroparticles, and a mixture thereof. The macroparticles are secondary particles having an average particle size (D50) of 5 to 20 ?m formed by agglomeration of primary microparticles having a smaller average particle size (D50) than the primary macroparticles.
    Type: Application
    Filed: June 9, 2022
    Publication date: March 28, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Gi-Beom Han, Jong-Woo Kim, Eun-Sol Lho, Kang-Joon Park, Min Kwak, Seul-Ki Kim, Hyeong-Il Kim, Sang-Min Park, Sang-Wook Lee, Wang-Mo Jung
  • Publication number: 20240083767
    Abstract: A precursor for a positive electrode active material and a method of making the same are disclosed herein. In some embodiments a method includes forming precursor seeds for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to a reaction solution, and growing precursor particles for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to the reaction solution containing the precursor seeds, wherein the co-precipitation reaction to grow the precursor particles proceeds while continuously increasing feed rates of the transition metal aqueous solution and the ammonium cationic complexing agent.
    Type: Application
    Filed: February 18, 2022
    Publication date: March 14, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Min Joon Lee, Seong Ji Ye, Seung Beom Cho, Jang Soo Lee, Yoon Bin Park
  • Publication number: 20220238871
    Abstract: A method of preparing a positive electrode active material precursor for a secondary battery includes preparing a positive electrode active material precursor by a co-precipitation reaction while adding a transition metal-containing solution containing transition metal cations, a basic solution, and an ammonium solution to a batch-type reactor, wherein a molar ratio of ammonium ions contained in the ammonium solution to the transition metal cations contained in the transition metal-containing solution added to the batch-type reactor is 0.5 or less, and a pH in the batch-type reactor is maintained at 11.2 or less.
    Type: Application
    Filed: September 25, 2020
    Publication date: July 28, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Min Joon Lee, Seung Beom Cho, Seong Ji Ye, Yoon Bin Park
  • Publication number: 20220048789
    Abstract: A method of preparing a positive electrode active material precursor for a secondary battery includes continuously adding a nickel (Ni), cobalt (Co), and manganese (Mn) transition metal cation-containing solution, an alkaline solution, and an ammonium ion-containing solution to a reactor, and forming a positive electrode active material precursor, in which nickel (Ni) and cobalt (Co) are in non-oxidized hydroxide forms and manganese (Mn) is in an oxidized form, by co-precipitation while a gas is not added or an oxygen-containing gas is continuously added to the reactor. A positive electrode active material precursor for a secondary battery is also provided which includes nickel (Ni), cobalt (Co), and manganese (Mn), wherein the nickel (Ni) and the cobalt (Co) are in non-oxidized hydroxide forms, and the manganese (Mn) is in an oxidized form.
    Type: Application
    Filed: February 27, 2020
    Publication date: February 17, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Min Joon Lee, Jun Won Lee, In Kook Jun