Patents by Inventor Jung Su Han

Jung Su Han 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: 20250145751
    Abstract: Provided is a polymer composition applicable as a latex stabilizer of a latex composition for dip molding, a method for preparing the same, a latex composition for dip molding, including the same to have improved latex stability, and a molded article molded therefrom to have improved wearability and tensile properties.
    Type: Application
    Filed: September 15, 2022
    Publication date: May 8, 2025
    Applicant: LG Chem, Ltd
    Inventors: Yong Seok Jung, Hyun Woo Kim, Jung Su Han, Seong Yeol Pak
  • Patent number: 12284926
    Abstract: The present disclosure relates to a transmission of an agricultural vehicle, the transmission including: a forward shift unit for performing shift with respect to drive transmitted from an engine of an agricultural vehicle; a clutch unit connected to the forward shift unit so as to selectively output drive transmitted from the forward shift unit; an adjustment unit connected to the clutch unit; and a backward shift unit connected to the adjustment unit so as to perform shift with respect to drive transmitted from the adjustment unit. The adjustment unit includes: a first adjustment mechanism connected to a first clutch mechanism included in the clutch unit; a second adjustment mechanism connected to a second clutch mechanism included in the clutch unit; and an integration mechanism connected to both the first adjustment mechanism and the second adjustment mechanism. The backward shift unit includes one backward shift mechanism connected to the integration mechanism.
    Type: Grant
    Filed: July 25, 2024
    Date of Patent: April 29, 2025
    Assignee: LS MTRON LTD.
    Inventors: Jung Su Han, Won Woo Park, Ji Hun Yu, Taek Seong Kim, Young Gyu Lee, Jae Gone Kim
  • Patent number: 12246593
    Abstract: The present disclosure relates to a transmission of an agricultural work vehicle, the transmission comprising: a pre-shift part for performing speed shifting on driving transmitted from an engine of an agricultural work vehicle; a clutch part connected to the pre-shift part so as to selectively output driving transmitted from the pre-shift part; an adjusting part connected to the clutch part so as to perform speed shifting on driving transmitted from the clutch part; and a subsequent shift part connected to the adjusting part so as to perform speed shifting on driving transmitted from the adjusting part.
    Type: Grant
    Filed: December 21, 2023
    Date of Patent: March 11, 2025
    Assignee: LS MTRON LTD.
    Inventors: Jung Su Han, Ki Taeg Lee, Won Woo Park, Ji Hun Yu, Taek Seong Kim, Young-Gyu Lee
  • Patent number: 12215042
    Abstract: Provided is a wastewater purification method, the method including: supplying a first mixed stream, in which an acid component and wastewater including water, a nitrile-based monomer, and ammonia are mixed, to a first column; recovering the nitrile-based monomer from an upper discharge stream from the first column; supplying a second mixed stream, in which a lower discharge stream from the first column and a base component are mixed, to a second column; and recovering the ammonia from an upper discharge stream from the second column and separating purified wastewater.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: February 4, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Suk Yung Oh, Yong Heon Cho, Jung Su Han, Jun Seok Ko, Nam Young Yoon, Sung Hwan Kim
  • Patent number: 12173158
    Abstract: A carboxylic acid-modified nitrile-based copolymer latex includes a carboxylic acid-modified nitrile-based copolymer including: 65.5 wt % to 82.5 wt % of a conjugated diene-based monomer-derived unit, 15 wt % to 30 wt % of an ethylenic unsaturated nitrile-based monomer-derived unit, and 2.5 wt % to 4.5 wt % of an ethylenic unsaturated acid monomer-derived unit, wherein the carboxylic acid-modified nitrile-based copolymer latex satisfies General Formula 1: 1.0 mm2/s?CV0?3.0 mm2/s??[General Formula 1] wherein CV0 represents a capillary viscosity of the carboxylic acid-modified nitrile-based copolymer latex which is measured in a swollen state in a methyl ethyl ketone solvent.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 24, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Won Sang Kwon, Jung Eun Kim, Jung Su Han, Seung Uk Yeu
  • Patent number: 12157817
    Abstract: The present technology provides a carboxylic acid-modified nitrile-based copolymer latex including a carboxylic acid-modified nitrile-based copolymer including a conjugated diene-based monomer-derived unit, an ethylenic unsaturated nitrile-based monomer-derived unit, and an ethylenic unsaturated acid monomer-derived unit, wherein the carboxylic acid-modified nitrile-based copolymer latex satisfies General Formulas 1 and General Formula 2.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 3, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jung Su Han, Won Sang Kwon, Jung Eun Kim, Seung Uk Yeu, Do Young Ha
  • Patent number: 12157816
    Abstract: The present technology relates to a latex composition for dip molding comprising a carboxylic acid-modified nitrile-based copolymer latex satisfying General Formulas 1 and 2, wherein the carboxylic acid-modified nitrile-based copolymer includes a conjugated diene-based monomer-derived unit, an ethylenic unsaturated nitrile-based monomer-derived unit, and an ethylenic unsaturated acid monomer-derived unit, and a molded article.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 3, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Seung Whan Oh, Won Sang Kwon, Jung Eun Kim, Ji Hyun Kim, Seung Uk Yeu, Myung Su Jang, Do Young Ha, Jung Su Han
  • Publication number: 20240373773
    Abstract: The present disclosure relates to a transmission of an agricultural vehicle, the transmission including: a forward shift unit for performing shift with respect to drive transmitted from an engine of an agricultural vehicle; a clutch unit connected to the forward shift unit so as to selectively output drive transmitted from the forward shift unit; an adjustment unit connected to the clutch unit; and a backward shift unit connected to the adjustment unit so as to perform shift with respect to drive transmitted from the adjustment unit. The adjustment unit includes: a first adjustment mechanism connected to a first clutch mechanism included in the clutch unit; a second adjustment mechanism connected to a second clutch mechanism included in the clutch unit; and an integration mechanism connected to both the first adjustment mechanism and the second adjustment mechanism. The backward shift unit includes one backward shift mechanism connected to the integration mechanism.
    Type: Application
    Filed: July 25, 2024
    Publication date: November 14, 2024
    Inventors: Jung Su HAN, Won Woo PARK, Ji Hun YU, Taek Seong KIM, Young Gyu LEE, Jae Gone KIM
  • Patent number: 12075715
    Abstract: The present disclosure relates to a transmission of an agricultural vehicle, the transmission including: a forward shift unit for performing shift with respect to drive transmitted from an engine of an agricultural vehicle; a clutch unit connected to the forward shift unit so as to selectively output drive transmitted from the forward shift unit; an adjustment unit connected to the clutch unit; and a backward shift unit connected to the adjustment unit so as to perform shift with respect to drive transmitted from the adjustment unit. The adjustment unit includes: a first adjustment mechanism connected to a first clutch mechanism included in the clutch unit; a second adjustment mechanism connected to a second clutch mechanism included in the clutch unit; and an integration mechanism connected to both the first adjustment mechanism and the second adjustment mechanism. The backward shift unit includes one backward shift mechanism connected to the integration mechanism.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: September 3, 2024
    Assignee: LS MTRON LTD.
    Inventors: Jung Su Han, Won Woo Park, Ji Hun Yu, Taek Seong Kim, Young Gyu Lee, Jae Gone Kim
  • Publication number: 20240246837
    Abstract: Provided is a wastewater purification method, the method including: supplying a first mixed stream, in which an acid component and wastewater including water, a nitrile-based monomer, and ammonia are mixed, to a first column; recovering the nitrile-based monomer from an upper discharge stream from the first column; supplying a second mixed stream, in which a lower discharge stream from the first column and a base component are mixed, to a second column; and recovering the ammonia from an upper discharge stream from the second column and separating purified wastewater.
    Type: Application
    Filed: July 1, 2022
    Publication date: July 25, 2024
    Applicants: LG Chem, Ltd., LG Chem, Ltd.
    Inventors: Suk Yung Oh, Yong Heon Cho, Jung Su Han, Jun Seok Ko, Nam Young Yoon, Sung Hwan Kim
  • Patent number: 12006390
    Abstract: The present invention relates to a latex composition for dip molding, and such latex composition includes: a carboxylic acid-modified nitrile-based copolymer latex; and a reactive compound having three or more branched chains and a reactive group at a terminal of each of the branched chains, wherein the reactive group is one or more selected from the group consisting of an amine group, a hydroxy group, an epoxy group, a glycidyl group, and an isocyanate group.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: June 11, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Won Sang Kwon, Tae Shik Yoon, Jung Su Han, Myung Su Jang
  • Publication number: 20240140195
    Abstract: The present disclosure relates to a transmission of an agricultural work vehicle, the transmission comprising: a pre-shift part for performing speed shifting on driving transmitted from an engine of an agricultural work vehicle; a clutch part connected to the pre-shift part so as to selectively output driving transmitted from the pre-shift part; an adjusting part connected to the clutch part so as to perform speed shifting on driving transmitted from the clutch part; and a subsequent shift part connected to the adjusting part so as to perform speed shifting on driving transmitted from the adjusting part.
    Type: Application
    Filed: December 21, 2023
    Publication date: May 2, 2024
    Inventors: Jung Su HAN, Ki Taeg LEE, Won Woo PARK, Ji Hun YU, Taek Seong KIM, Young-Gyu LEE
  • Publication number: 20240056088
    Abstract: A semiconductor device includes a first ADC configured to sample an input signal based on a first clock signal, quantize the input signal with a first gain, and output a plurality of first output signals, and a second ADC configured to sample the input signal based on a second clock signal obtained by delaying the first clock signal, quantize the input signal with a second gain, and output a plurality of second output signals. The device includes a gain mismatch estimator configured to calculate first and second values which are averages of absolute values of the first output signals and the second output signals, and calculate first and second gain correction values using the first and second values. A gain mismatch compensator is configured to output a plurality of corrected first output signals and corrected second output signals, according to the first and second gain correction values.
    Type: Application
    Filed: June 14, 2023
    Publication date: February 15, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Joo-Han KIM, Beom Kon KIM, Woo Wan WANG, Dong Hyun LEE, Jung Su HAN
  • Patent number: 11897327
    Abstract: The present invention relates to a transmission of an agricultural work vehicle, the transmission comprising: a pre-shift part for performing speed shifting on driving transmitted from an engine of an agricultural work vehicle; a clutch part connected to the pre-shift part so as to selectively output driving transmitted from the pre-shift part; an adjusting part connected to the clutch part so as to perform speed shifting on driving transmitted from the clutch part; and a subsequent shift part connected to the adjusting part so as to perform speed shifting on driving transmitted from the adjusting part.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: February 13, 2024
    Assignee: LS MTRON LTD.
    Inventors: Jung Su Han, Ki Taeg Lee, Won Woo Park, Ji Hun Yu, Taek Seong Kim, Young-Gyu Lee
  • Patent number: 11879028
    Abstract: An acryl-based copolymer composition is provided. The acryl-based copolymer composition includes an acryl-based copolymer, an aggregation inducing agent, and an aggregating agent, wherein the acryl-based copolymer includes a (meth)acrylic acid alkyl ester monomer-derived repeating unit, a (meth)acrylic acid alkoxy alkyl ester monomer-derived repeating unit, and a crosslinkable monomer-derived repeating unit. The aggregation inducing agent includes a siloxane-based monomer-derived repeating unit and an ether-based monomer-derived repeating unit, and the aggregating agent includes a monovalent ionic metal salt.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: January 23, 2024
    Inventors: Ji Young Lee, Yong Seok Jung, Jung Su Han, Sang Jin Shin
  • Patent number: 11873391
    Abstract: Disclosed is a latex composition for dip molding including a carboxylic acid-modified nitrile-based copolymer latex satisfying General Formula 1, wherein the carboxylic acid-modified nitrile-based copolymer includes: 15 wt % to 30 wt % of the ethylenic unsaturated nitrile-based monomer-derived unit and 2.5 wt % to 4.5 wt % of the ethylenic unsaturated acid monomer-derived unit, and a molded article: 1.0 mm2/s?CV0?3.0 mm2/s.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: January 16, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Do Young Ha, Won Sang Kwon, Jung Eun Kim, Jung Su Han
  • Patent number: 11667773
    Abstract: A latex composition for dip molding having an excellent flow mark property and syneresis property and being capable of providing a molded article having excellent tensile properties and texture is provided. A method of preparing the latex composition, and a dip-molded article produced using the latex composition are also provided.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: June 6, 2023
    Inventors: Do Young Ha, Won Sang Kwon, Seung Uk Yeu, Jung Su Han
  • Publication number: 20230091367
    Abstract: Disclosed is a dip-formed article comprising a layer derived from a latex composition for dip-forming, wherein the latex composition for dip-forming contains a carboxylic acid-modified nitrile-based copolymer latex, the carboxylic acid-modified nitrile-based copolymer latex contains a carboxylic acid-modified nitrile-based copolymer, and the dip-formed article has an elongation of more than 650% and satisfies the following Expressions 1 and 2, [Expression 1] k1?+k2?+k3??9.3 N/mm??(1) [Expression 2] 0.55?k1?/(k1?+k2?+k3?)??(2) wherein k1? is a value obtained by dividing an equilibrium coefficient k1 by a thickness of a test piece, and k2? and k3? are values obtained by dividing viscous coefficients k2 and k3 by the thickness of the test piece, respectively.
    Type: Application
    Filed: December 9, 2021
    Publication date: March 23, 2023
    Applicants: LG CHEM, LTD., MIDORI ANZEN CO., LTD.
    Inventors: Won Sang KWON, Seung Uk YEU, Jung Su HAN, Jung Eun KIM, Myung Su JANG, Norihide ENOMOTO, Sayaka HOSHINO, Shoya SATAKE, Yamato TAKEUCHI
  • Patent number: 11492466
    Abstract: Provided is a latex composition for dip molding. The latex composition for dip molding includes a carboxylic acid-modified nitrile-based copolymer latex and a hydrophobically modified alkali-soluble emulsion thickener, wherein the hydrophobically modified alkali-soluble emulsion thickener includes a copolymer including an associative portion and a non-associative portion, and the associative portion includes a monomer-derived repeating unit substituted by one or more first hydrophobic groups selected from the group consisting of alkyl, alkenyl, perfluoroalkyl, and carbosilyl having 8 to 15 carbon atoms, and aryl, arylalkyl, arylalkenyl, alicyclic alkyl, and polycyclic alkyl having 6 to 15 carbon atoms. A method of preparing the latex composition for dip molding, and a molded article manufactured therefrom are also provided.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: November 8, 2022
    Inventors: Won Sang Kwon, Seung Uk Yeu, Seung Whan Oh, Yong Seok Jung, Jung Su Han
  • Patent number: 11421059
    Abstract: An acrylic copolymer is provided. The acrylic copolymer includes: a main monomer-derived repeating unit; and a chain transfer agent-derived part, wherein the main monomer-derived repeating unit includes a (meth)acrylic acid alkyl ester monomer-derived repeating unit, a (meth)acrylic acid alkoxy alkyl ester monomer-derived repeating unit, and a crosslinking monomer-derived repeating unit, the chain transfer agent-derived part is derived from a chain transfer agent having a carbonothioylthio group, and the chain transfer agent-derived part is included in an amount of 0.03 parts by weight to 0.08 parts by weight with respect to 100 parts by weight of the main monomer-derived repeating unit. A method of preparing the same, and an acrylic copolymer composition including the same is also provided.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: August 23, 2022
    Inventors: Sang Jin Shin, Jung Su Han, Seung Uk Yeu, Yong Seok Jung