Patents by Inventor Seung Jung YU

Seung Jung YU 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: 20240053247
    Abstract: The present invention provides a practical protection performance test evaluation technology of CBRN protective clothing according to mass transfer characteristics of an aerosol, which is to break away from the existing static CBRN protection test cell and reflect an air flow around the CBRN protection and body motions of individual soldiers, and dynamically design a Swatch test cell in a geometric shape that can be installed inside a wind tunnel, and reflect an aerosol flow that can more closely simulate battlefield environment.
    Type: Application
    Filed: August 8, 2023
    Publication date: February 15, 2024
    Inventors: Seung Jung YU, Hyun Sook JUNG, Hee Soo JUNG, Goon Hyeok KIM, Jae Heon LEE
  • Publication number: 20230340243
    Abstract: The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multiblock copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention has excellent elongation and tensile strength as well as high fluidity properties, and thus, may exhibit excellent molding processability.
    Type: Application
    Filed: July 30, 2021
    Publication date: October 26, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Mo Lee, Seul Ki Im, Ji Hyun Park, Yun Kon Kim, Seung Jung Yu, Seok Pil Sa, Ki Soo Lee, Eun Ji Shin
  • Publication number: 20230303753
    Abstract: The present invention relates to a method for preparing a polyolefin-polystyrene-based multiblock copolymer having a uniform structure and showing excellent physical properties through continuous type coordination polymerization and batch type anionic polymerization.
    Type: Application
    Filed: August 25, 2021
    Publication date: September 28, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Yun Kon Kim, Seul Ki Im, Hyun Mo Lee, Ji Hyun Park, Dong Min Kim, Mi Kyung Kim, Ki Soo Lee, Eun Ji Shin, Seok Pil Sa, Seung Jung Yu
  • Publication number: 20230287207
    Abstract: The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multi-block copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention has significantly improved low-temperature and room temperature impact strength properties as well as high fluidity properties, and thus, may exhibit excellent molding processability.
    Type: Application
    Filed: July 30, 2021
    Publication date: September 14, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hyun Park, Seul Ki Im, Hyun Mo Lee, Yun Kon Kim, Seung Jung Yu, Seok Pil Sa, Ki Soo Lee, Eun Ji Shin
  • Publication number: 20230287208
    Abstract: The present invention relates to a thermoplastic resin composition including a polyolefin-polystyrene-based multi-block copolymer having a structure in which a polystyrene chain is attached to both ends of a polypropylene and polyolefin chain, and the thermoplastic resin composition according to the present invention exhibits high fluidity properties as well as soft feel and high restoring force.
    Type: Application
    Filed: August 6, 2021
    Publication date: September 14, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Tae Hee Kim, Ki Soo Lee, Eun Ji Shin, Seok Pil Sa, Seul Ki Im, Hyun Mo Lee, Ji Hyun Park, Yun Kon Kim, Seung Jung Yu
  • Publication number: 20230116142
    Abstract: A polyolefin-polystyrene-based multiblock copolymer and method of making the same are disclosed herein. In some embodiments, a polyolefin-polystyrene-based multiblock copolymer satisfies conditions (a) a weight average molecular weight is 100,000 to 300,000 g/mol; (b) molecular weight distribution is 1.5 to 3.0; (c) measured results of gel permeation chromatography, a graph having an x-axis of log Mw and a y-axis of dw/dlog Mw, are fit to a Gaussian function, where all constants satisfy ?0.01<A<0.03, 4.8<B<5.2, 0.8<C<1.2, and 0.6<D<1.2; and (d) a polyolefin block comprises one or more branch points, where a carbon atom at the branch point is represented by a peak of 36 to 40 ppm, and a terminal carbon atom of a branched chain from the branch point is represented by a peak of 13 to 15 ppm.
    Type: Application
    Filed: April 16, 2021
    Publication date: April 13, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Seul Ki Im, Hyun Mo Lee, Ji Hyun Park, Yun Kon Kim, Seung Jung Yu, Seok Pil Sa, Ki Soo Lee, Eun Ji Shin
  • Publication number: 20210371827
    Abstract: The present invention relates to a method or kit for producing cancer stem cell spheroids, and a method of screening of drugs for treating cancer cell resistance using the prepared cancer stem cell spheroid, and it can conveniently produce cancer stem cell spheroids, and the prepared cancer stem cell spheroids can be effectively utilized for screening drugs for treating cancer cell resistance.
    Type: Application
    Filed: November 13, 2018
    Publication date: December 2, 2021
    Inventors: Sang Yong JON, Min Suk CHOI, Sung Gap IM, Daeyoup LEE, Seung Jung YU, Yoon Jung CHOI
  • Publication number: 20190233788
    Abstract: The present invention provides a culture plate comprising a copolymer formed from a first monomer for forming a thin film having high surface free energy and a second monomer for forming a thin film having low surface free energy, a method for producing the culture plate, and a method for producing and transferring a cell aggregate in the form of a cell sheet by using the culture plate. The present invention has the effect of producing a cell aggregate in the form of a cell sheet through an easy and simple process in comparison with prior art.
    Type: Application
    Filed: July 5, 2017
    Publication date: August 1, 2019
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Sung Gap IM, Eun Jung LEE, Ji Eung BAEK, Young Hak CHO, Seung Jung YU, Go Ro CHOI