Patents by Inventor Hyun Min Lee

Hyun Min 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: 11912810
    Abstract: The present disclosure provides a composition for preparing a vinyl chloride-based polymer, including a vinyl chloride-based first seed; a vinyl chloride-based second seed; an initiator composition including a water-soluble initiator and an oil-soluble initiator; a reducing agent; and a vinyl chloride-based monomer, wherein a metal catalyst is not included in the composition, and a method for preparing a vinyl chloride-based polymer using the same.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: February 27, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Seog Youk, Heung Kwon Bae, Jung Rae Lee, Hyun Min Lee, Joong Chul Lim, Min Jeong Kang
  • Patent number: 11867999
    Abstract: A color filter is provided. The color filter includes a substrate, a bank formed on a substrate to partition a plurality of pixel units into each other, a plurality of first structures formed on the pixel unit, and having a width narrower than a width of the pixel unit, and a height lower than a height of the bank, and an ink film filled in the pixel unit and having a height higher than the height of the first structures.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: January 9, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Jun Seok Lee, Yoon-Ok Jang, Sung Ho Kim, Kwang Jun Choi, Hyun Min Lee
  • Patent number: 11838569
    Abstract: Provided are a method and apparatus for providing image playing rate information. The method including receiving, from a user terminal, a target image request signal, transmitting, to the user terminal, a target image in a first state or the target image in a second state, based on whether the target image request signal satisfies a specified standard, obtaining, from the user terminal, state information and image playing information of the target image for each specified time, and providing user-wise playing rate information of the target image, based on the state information and image playing information of the target image may be provided.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: December 5, 2023
    Assignee: NAVER CORPORATION
    Inventors: Su Bin Bak, Jung Min Lee, Jung Pil Lee, Seok Woo Lee, Hyun Min Lee, Sang Joon Lee, Ji Hoon Ko, Hyo Jong Kim
  • Publication number: 20230383025
    Abstract: The present invention relates to a method for preparing a vinyl chloride-based polymer showing improved melting rate and mechanical properties and low harmfulness, by pre-mixing and injecting a mixed dispersant comprising polyvinyl alcohol of high hydration and a metal carbonate before performing polymerization, and then, polymerizing a vinyl chloride-based monomer, and a vinyl chloride-based polymer prepared through the method.
    Type: Application
    Filed: June 28, 2022
    Publication date: November 30, 2023
    Inventors: Jae Hyun PARK, Joong Chul LIM, Keun Hoon YOO, Hyun Min LEE, Gyu Sun KIM
  • Patent number: 11787171
    Abstract: An ink impact point correction apparatus for automatically measuring and correcting an impact point of ink using a pattern on a substrate, on which a coordinate system is displayed, and a substrate treating system including the same are provided. The ink impact point correction apparatus includes a recognition unit for acquiring information on the impact point of ink at a plurality of points located on a substrate; and a correction unit for correcting a position of an ink discharge point on the substrate based on the information on the impact point, wherein a coordinate pattern in the form of a coordinate system is formed at the plurality of points.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: October 17, 2023
    Assignee: Semes Co., Ltd.
    Inventors: Sung Ho Kim, Yoon Ok Jang, Hyun Min Lee, Jun Seok Lee, Kwang Jun Choi
  • Patent number: 11789305
    Abstract: A substrate, a display panel, and a substrate manufacturing method are proposed. The substrate includes a base layer; partitioning walls located on the base layer and dividing the base layer into a plurality of pixel regions, and patterns located in each of the pixel regions of the base layer, and guiding spread of a liquid drop discharged to the base layer.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: October 17, 2023
    Assignee: SEMES CO., LTD.
    Inventors: Han Lim Kang, Yoon Ok Jang, Jun Seok Lee, Hyun Min Lee
  • Patent number: 11787887
    Abstract: Provided is a method of producing a vinyl chloride-based polymer including adding a vinyl chloride monomer and a monomer represented by Chemical Formula 1 to a reactor and performing polymerization, wherein an input amount of the monomer represented by Chemical Formula 1 is 1 to 4 parts by weight based on 100 parts by weight of the vinyl chloride monomer, and the monomer represented by Chemical Formula 1 is continuously added to the reactor.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: October 17, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jae Hyun Park, Joong Chul Lim, Hyun Min Lee
  • Patent number: 11760818
    Abstract: The present disclosure provides a method of preparing a vinyl chloride-based polymer, and the method provides excellent productivity while having reduced amount of a volatile organic compound generated so as to provide the vinyl chloride-based polymer suitable for an eco-friendly material, and improved foaming and viscosity properties of a plastisol including the prepared polymer, by adding a carbonate-based metal salt and a transition metal catalyst together, and controlling input time and amount of the transition metal catalyst.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: September 19, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jae Hyun Park, Hyun Min Lee, Hyun Kyou Ha, Kun Ji Kim, Kwang Jin Lee, Yang Jun Jeon, Jin Hyuck Ju
  • Publication number: 20230238643
    Abstract: An energy storage system includes at least one battery rack and an anti-explosion housing hermetically accommodating the at least one battery rack to increase fire or explosion safety of the battery rack.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 27, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Sang-Woo HONG, Hyun-Min LEE, Dong-Ho PARK, Ji-Ho YOO, Yong-Tae LEE, Jong-Soo LEE, Ji-Won LEE
  • Patent number: 11707944
    Abstract: Disclosed is a substrate treating apparatus. The substrate treating apparatus may include a stage including an accommodation area, onto or from which a substrate is loaded or unloaded, and a treatment area, in which the substrate is treated, a liquid discharge head that supplies a treatment liquid to the substrate, and a liquid receiving part that receives the treatment liquid pre-discharged by the liquid discharge head in the treatment area.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: July 25, 2023
    Assignee: SEMES CO., LTD.
    Inventors: Jun Seok Lee, Yoon-Ok Jang, Sung Ho Kim, Kwang Jun Choi, Hyun Min Lee
  • Publication number: 20230068295
    Abstract: A substrate processing apparatus and a substrate processing method are provided, which can improve the yield by minimizing the occurrence of stains. The substrate processing method includes forming on the substrate a plurality of ink patterns spaced apart from each other by jetting ink onto the substrate by using a plurality of nozzles, calculating the density of each of the plurality of ink patterns, and selecting at least one nozzle for jetting ink into one pixel area based on respectively calculated densities of the plurality of ink patterns.
    Type: Application
    Filed: July 22, 2022
    Publication date: March 2, 2023
    Inventors: Sung Ho KIM, Yoon Ok Jang, Bo Yeon Hwang, Hyun Min Lee, Kwang Jun Choi
  • Publication number: 20230002527
    Abstract: Provided is a method of producing a vinyl chloride-based polymer including adding a vinyl chloride monomer and a monomer represented by Chemical Formula 1 to a reactor and performing polymerization, wherein an input amount of the monomer represented by Chemical Formula 1 is 1 to 4 parts by weight based on 100 parts by weight of the vinyl chloride monomer, and the monomer represented by Chemical Formula 1 is continuously added to the reactor.
    Type: Application
    Filed: July 12, 2021
    Publication date: January 5, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Jae Hyun PARK, Joong Chul LIM, Hyun Min LEE
  • Publication number: 20220387960
    Abstract: The present invention relates to a post-processing apparatus configured to post-process latex, the post-processing apparatus including: a receiving tank having therein a receiving part and having an inlet port through which the latex is introduced into the receiving part and a discharge port through which the latex is discharged; an ultrasonic wave generating device configured to generate ultrasonic waves to the latex accommodated in the receiving tank; a pressure reducing part configured to reduce a pressure of the receiving part of the receiving tank to discharge an unreacted monomer to the outside of the receiving tank; and a partition part provided in the receiving part of the receiving tank and comprising a plurality of partitions disposed in a direction from the inlet port toward the discharge port of the receiving tank, in which the latex accommodated in the receiving part moves along upper and lower sides of the plurality of partitions.
    Type: Application
    Filed: April 16, 2021
    Publication date: December 8, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Se Woong LEE, Young Man SONG, Hyeong Joon KIM, Hyun Min LEE
  • Publication number: 20220348695
    Abstract: The present invention provides a post-treatment method of a vinyl chloride-based polymer including: (a) preparing a stream containing vinyl chloride-based polymer powder and unreacted vinyl chloride-based monomers by drying a vinyl chloride-based polymer latex in a drying unit; (b) filtering the stream containing the vinyl chloride-based polymer powder and the unreacted vinyl chloride-based monomers in a filtering unit; and (c) recirculating a gas containing the unreacted vinyl chloride-based monomers discharged from the filtering unit to a latex storage unit.
    Type: Application
    Filed: June 22, 2020
    Publication date: November 3, 2022
    Inventors: Heung Kwon BAE, Hyun Min LEE, Kyung Seog YOUK, Joong Chul LIM, Se Woong LEE, Jung Rae LEE
  • Publication number: 20220220232
    Abstract: The present invention provides a method for preparing a vinyl chloride-based polymer, the method including (1) polymerizing a vinyl chloride-based monomer in the presence of a vinyl chloride-based first seed particle, a vinyl chloride-based second seed particle, and an emulsifier and (2) separating, after the polymerizing, a first vinyl chloride-based polymer and a second vinyl chloride-based polymer which are in a particulate form, wherein the separated first vinyl chloride-based polymer is dried using a fluid bed dryer (FBD), and the first vinyl chloride-based polymer has a smaller average particle diameter (D50) than the second vinyl chloride-based polymer, and two kinds of polymers having different physical properties may be prepared through a single manufacturing process.
    Type: Application
    Filed: September 25, 2020
    Publication date: July 14, 2022
    Inventors: Se Woong LEE, Heung Kwon BAE, Hyun Min LEE, Kyung Seog YOUK, Joong Chul LIM, Jung Rae LEE
  • Patent number: 11380490
    Abstract: A multilayer ceramic capacitor includes a ceramic body including a dielectric layer, a plurality of first and second internal electrodes disposed inside the ceramic body, exposed to the first and second surfaces, and having ends exposed to the third or fourth surface, and a first side margin portion and a second side margin portion disposed on side portions of the plurality of first and second internal electrodes exposed to the first and second surfaces. A ratio Db/Da satisfies 1.00 to 1.07, inclusive, where ‘Db’ is a distance, in a stacking direction of the dielectric layer, between both end points of respective edge regions of the first side margin portion and the second side margin portion, and ‘Da’ is a distance in a central region of the ceramic body in the stacking direction.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: July 5, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Hun Kim, Hyun Min Lee, Jong Suk Jeong, Dong Geon Yoo, Ji Hyun Lee, Seok Hyun Yoon
  • Publication number: 20220055376
    Abstract: A color filter is provided. The color filter includes a substrate, a bank formed on a substrate to partition a plurality of pixel units into each other, a plurality of first structures formed on the pixel unit, and having a width narrower than a width of the pixel unit, and a height lower than a height of the bank, and an ink film filled in the pixel unit and having a height higher than the height of the first structures.
    Type: Application
    Filed: August 18, 2021
    Publication date: February 24, 2022
    Inventors: JUN SEOK LEE, YOON-OK JANG, SUNG HO KIM, KWANG JUN CHOI, HYUN MIN LEE
  • Publication number: 20220055391
    Abstract: Disclosed is a substrate treating apparatus. The substrate treating apparatus may include a stage including an accommodation area, onto or from which a substrate is loaded or unloaded, and a treatment area, in which the substrate is treated, a liquid discharge head that supplies a treatment liquid to the substrate, and a liquid receiving part that receives the treatment liquid pre-discharged by the liquid discharge head in the treatment area.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 24, 2022
    Inventors: JUN SEOK LEE, YOON-OK JANG, SUNG HO KIM, KWANG JUN CHOI, HYUN MIN LEE
  • Publication number: 20220009224
    Abstract: An ink impact point correction apparatus for automatically measuring and correcting an impact point of ink using a pattern on a substrate, on which a coordinate system is displayed, and a substrate treating system including the same are provided. The ink impact point correction apparatus includes a recognition unit for acquiring information on the impact point of ink at a plurality of points located on a substrate; and a correction unit for correcting a position of an ink discharge point on the substrate based on the information on the impact point, wherein a coordinate pattern in the form of a coordinate system is formed at the plurality of points.
    Type: Application
    Filed: June 3, 2021
    Publication date: January 13, 2022
    Inventors: Sung Ho Kim, Yoon Ok Jang, Hyun Min Lee, Jun Seok Lee, Kwang Jun Choi
  • Publication number: 20220014801
    Abstract: Provided are a method and apparatus for providing image playing rate information. The method including receiving, from a user terminal, a target image request signal, transmitting, to the user terminal, a target image in a first state or the target image in a second state, based on whether the target image request signal satisfies a specified standard, obtaining, from the user terminal, state information and image playing information of the target image for each specified time, and providing user-wise playing rate information of the target image, based on the state information and image playing information of the target image may be provided.
    Type: Application
    Filed: July 7, 2021
    Publication date: January 13, 2022
    Applicant: NAVER CORPORATION
    Inventors: Su Bin BAK, Jung Min LEE, Jung Pil LEE, Seok Woo LEE, Hyun Min LEE, Sang Joon LEE, Ji Hoon KO, Hyo Jong KIM