Patents by Inventor Sung Sohn

Sung Sohn 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: 10538128
    Abstract: The present invention relates to a modifier useful for modifying a polymer, a method for preparing a modified and conjugated diene-based polymer using the same, and a modified and conjugated diene-based polymer prepared thereby. In the modified and conjugated diene-based polymer, a hydroxyl group and a silyl group are combined, and the affinity thereof with a silica-based filler may be excellent. Accordingly, a rubber composition including the modified and conjugated diene-based polymer may have excellent processability, and as a result, molded articles (for example, tires) manufactured from the rubber composition may have excellent tensile strength, abrasion resistance, and viscoelasticity properties.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: January 21, 2020
    Assignee: LG Chem, Ltd.
    Inventors: He Seung Lee, No Ma Kim, Hae Sung Sohn
  • Patent number: 10533062
    Abstract: The present invention provides a modified conjugated diene-based polymer which includes a functional group derived from a substituted styrene-based compound and a functional group derived from an aminosilane-based compound, a method for preparing the same, and a rubber composition including the same. The modified conjugated diene-based polymer includes the functional group derived from an aminosilane-based compound of Formula 1 and a functional group derived from a substituted styrene-based compound of Formula 2 at both terminals of a main chain, and thus, shows a high modification ratio. When applying the polymer in a rubber composition, excellent affinity with a filler may be shown, and as a result, agglomeration of a filler in the rubber composition may be prevented, and the dispersibility of the filler may be increased, thereby improving the processability of the rubber composition.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: January 14, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hae Sung Sohn, No Ma Kim, Jin Young Kim, Kyung Chang Seo, Sang Mi Lee
  • Publication number: 20200013526
    Abstract: Provided is a power cable, particularly, an ultra-high voltage underground or submarine cable for long-distance direct-current transmission. More specifically, the present invention relates to a power cable, in which an insulating layer has high dielectric strength, an electric field applied to the insulating layer is effectively reduced, and particularly, a large void is suppressed from occurring in the insulating layer when the power cable is left at low temperatures for a long time until electric current is supplied thereto after installed in a low-temperature environment, thereby effectively preventing partial discharge, dielectric breakdown, etc. from occurring due to an electric field concentrated in the large void.
    Type: Application
    Filed: March 30, 2017
    Publication date: January 9, 2020
    Inventors: Ji Sung KIM, Weon Bae KIM, Kyoung Ro KO, Su Kil LEE, Joon Keun LEE, Soon Il SOHN, Kum Hwan CHA, Jae Cheol GWAG, Tae Hyun KIM
  • Publication number: 20190375805
    Abstract: The present invention provides peptides comprising a sequence derived from the human NAF-1 protein, analogs of said sequence or a retro-inverso sequence of said peptide or analog. The conjugates of such peptides are provided as well. The peptides and the conjugates of the present invention are useful in treating cancer, and in particular cancer in which the expression of NAF-1 is enhanced.
    Type: Application
    Filed: February 12, 2018
    Publication date: December 12, 2019
    Inventors: Rachel NECHUSHTAI, Assaf FRIEDLER, Anat IOSUB-AMIR, Merav DARASH-YA-HANA, Yang-Sung SOHN, Dorit MICHAELI
  • Patent number: 10403717
    Abstract: Semiconductor devices are provided. A semiconductor device includes a substrate. The semiconductor device includes an isolation layer defining active portions of the substrate that are spaced apart from each other in a direction. The semiconductor device includes an epitaxial layer on the active portions. The semiconductor device includes a metal silicide layer on the epitaxial layer. Moreover, the semiconductor device includes a contact structure that only partially overlaps the metal silicide layer on the epitaxial layer. Related methods of forming semiconductor devices are also provided.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 3, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Do-Sun Lee, Chang-Woo Sohn, Chul-Sung Kim, Shigenobu Maeda, Young-Moon Choi, Hyo-Seok Choi, Sang-Jin Hyun
  • Publication number: 20190256635
    Abstract: The present invention relates to a method for preparing a modified conjugated diene-based polymer, and more particularly, provides a method for preparing a modified conjugated diene-based polymer including a step of polymerizing a conjugated diene-based monomer in the presence of an organometal compound in a hydrocarbon solvent to prepare an active polymer which is coupled with an organometal (S1); and a step of reacting or coupling the active polymer prepared in step (S1) with a modifier (S2), wherein step (S1) is continuously performed in two or more polymerization reactors, and a polymerization conversion ratio in a first reactor among the polymerization reactors is 50% or less.
    Type: Application
    Filed: December 7, 2017
    Publication date: August 22, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Jin Young Kim, Jun Seok Ko, No Ma Kim, Yu Jin Kim, Ki Seok Son, Hae Sung Sohn, Ro Mi Lee, Sang Mi Lee, Tae Chul Lee, He Seung Lee
  • Publication number: 20190162993
    Abstract: A liquid crystal display device including a display area, a non-display area surrounding the display area and including a first non-display area disposed on a first side, in a first direction, of the display area and a second non-display area disposed on a second side, in the first direction, of the display area, a first substrate including a first base and a plurality of spacers that are disposed on a first surface of the first base, a second substrate disposed on the first substrate, and a liquid crystal layer disposed between the first and second substrates. The spacers include first spacers, having a first thickness, disposed in the non-display area and second spacers, having a second thickness greater than the first thickness, disposed in the non-display area. A number of second spacers disposed in a first non-display area is different from a number of second spacers disposed in a second non-display area.
    Type: Application
    Filed: May 13, 2018
    Publication date: May 30, 2019
    Inventors: Ki Pyo HONG, Wan NAMGUNG, Woo Sung SOHN, Ki Won PARK, Seung Kyu LEE, In Woo KIM
  • Patent number: 10297363
    Abstract: The present invention relates to a composition for forming a conductive pattern and a resin structure having a conductive pattern, wherein the composition makes it possible to form a fine conducive pattern on various polymer resin products or resin layers through a simple process, and can more effectively meet needs of the art, such as displaying various colors.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: May 21, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Shin Hee Jun, Dae Ki Lee, Se Hui Sohn, Han Nah Jeong, Cheol-Hee Park, Chee-Sung Park, Jae Hyun Kim, Ha Na Lee
  • Patent number: 10278928
    Abstract: The present invention relates to a pharmaceutical composition for forming a film directly on a wound to accelerate wound healing, a use for the same, a treatment method using the same, and a method for preparing the same. The film-forming composition according to the present invention forms a film directly on the wound to increase the adhesion to the wound. The formed thin hydrophilic film protects the wound surface to prevent infection of the wound surface, retains the physiologically active substance useful for wound healing on the wound surface to promote the wound healing, and allow drugs to be continuously delivered to the wound surface. Therefore, the composition according to the present invention has excellent wound healing effect and has excellent usability as it is not absorbed into clothing, bandage, etc., thus effectively replacing conventional gel or ointment formations for delivering physiologically active substances.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: May 7, 2019
    Assignee: Dong-A Pharmaceutical Co., Ltd
    Inventors: Soon Hoe Kim, Mi Won Son, Sun Woo Jang, Joon Ho Jun, Sang Dug Han, Sung Rak Choi, Dae Hwan Kim, Yong Sung Sohn, Yong Sam Kwon
  • Patent number: 10281764
    Abstract: A liquid crystal display includes a first display substrate, a second display substrate facing the first display substrate, and a liquid crystal layer interposed between the first and second display substrates, where the first display substrate includes a lower substrate, a pixel electrode, which is disposed on the lower substrate, and a protrusion pattern, which is disposed on the pixel electrode along an outer edge of the pixel electrode, the second display substrate includes an upper substrate and a light-shielding member, which is disposed on a surface of the upper substrate facing the first display substrate and in which indentation pattern parts are inwardly indented in a plan view, the light-shielding member includes light-shielding parts that are an entirety of the light-shielding member except for the indentation pattern parts, and the indentation pattern parts overlap parts of the pixel electrode.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: May 7, 2019
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Seung Kyu Lee, Gung Wan Nam, Woo Sung Sohn, Mi Hyeon Jo, Ki Pyo Hong
  • Patent number: 10266614
    Abstract: Disclosed are a modified conjugated diene-based polymer represented by Chemical Formula 2a or 2b defined herein and a method of preparing the same.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: April 23, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Hae-Sung Sohn, No-Ma Kim, He-Seung Lee
  • Publication number: 20190083949
    Abstract: The present invention relates to a method for producing a modified polymerization initiator, and more particularly, to a method for preparing a modified polymerization initiator, wherein the method includes the steps of: (S1) introducing a first fluid and a second fluid into a reactor, and reacting the compounds included in the fluids, and (S2) obtaining the modified polymerization initiator prepared by the reaction of the step (S1) through an outlet of the reactor, wherein the step (S1) and step (S2) are continuously performed, wherein in the step (S1), the flow amount of the first fluid and the second fluid is maintained constant at the time when the first fluid and the second fluid are mixed, and the flow rate of the first fluid is increased. Also, the present invention provides an apparatus for producing a modified polymerization initiator for performing the same.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 21, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Tae Chul Lee, Won Hee Kim, Hae Sung Sohn, No Ma Kim
  • Patent number: 10118974
    Abstract: Disclosed are a modified conjugated diene-based polymer represented by a specific Chemical Formula and a method of preparing the same.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: November 6, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Hae-Sung Sohn, No-Ma Kim, He-Seung Lee
  • Publication number: 20180258194
    Abstract: The present invention provides a modified conjugated diene-based polymer which includes a functional group derived from a substituted styrene-based compound and a functional group derived from an aminosilane-based compound, a method for preparing the same, and a rubber composition including the same. The modified conjugated diene-based polymer includes the functional group derived from an aminosilane-based compound of Formula 1 and a functional group derived from a substituted styrene-based compound of Formula 2 at both terminals of a main chain, and thus, shows a high modification ratio. When applying the polymer in a rubber composition, excellent affinity with a filler may be shown, and as a result, agglomeration of a filler in the rubber composition may be prevented, and the dispersibility of the filler may be increased, thereby improving the processability of the rubber composition.
    Type: Application
    Filed: April 17, 2017
    Publication date: September 13, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Hae Sung Sohn, No Ma Kim, Jin Young Kim, Kyung Chang Seo, Sang Mi Lee
  • Publication number: 20180223088
    Abstract: The present invention relates to a polymer compound used as a polymer modifier, a conjugated diene-based polymer including a functional group derived therefrom, and a method for preparing a modified and conjugated diene-based polymer using the polymer compound. A rubber modifier compound obtained therefrom is used as a modifier for rubber, particularly, as a modifier of a conjugated diene-based polymer and is bonded to a chain of the conjugated diene-based polymer to easily introduce a functional group having affinity with a filler.
    Type: Application
    Filed: December 22, 2016
    Publication date: August 9, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Hae Sung Sohn, He Seung Lee, No Ma Kim
  • Publication number: 20180201699
    Abstract: The present invention relates to a method of preparing a modified conjugated diene-based polymer, and more particularly, to a method of preparing a modified conjugated diene-based polymer, including: (S1) preparing an active polymer with an organic metal bonded thereto by polymerizing a conjugated diene-based monomer in a hydrocarbon solvent in the presence of an organometallic compound; and (S2) mixing the active polymer prepared according to process S1 with a modifier, wherein the mixing of process S2 is performed at a Reynolds number of 20 or less for 1 minute or more, the Reynolds number being maintained within a range of ±5 of a Reynolds number when the modifier is added (wherein the range is between greater than 0 to 20 or less).
    Type: Application
    Filed: December 16, 2016
    Publication date: July 19, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Tae Chul Lee, Hae Sung Sohn, He Seung Lee, No Ma Kim
  • Publication number: 20180170102
    Abstract: The present invention relates to a modifier useful for modifying a polymer, a method for preparing a modified and conjugated diene-based polymer using the same, and a modified and conjugated diene-based polymer prepared thereby. In the modified and conjugated diene-based polymer, a hydroxyl group and a silyl group are combined, and the affinity thereof with a silica-based filler may be excellent. Accordingly, a rubber composition including the modified and conjugated diene-based polymer may have excellent processability, and as a result, molded articles (for example, tires) manufactured from the rubber composition may have excellent tensile strength, abrasion resistance, and viscoelasticity properties.
    Type: Application
    Filed: December 23, 2016
    Publication date: June 21, 2018
    Applicant: LG Chem, Ltd.
    Inventors: He Seung Lee, No Ma Kim, Hae Sung Sohn
  • Patent number: 9934737
    Abstract: A display apparatus includes a display panel comprising a plurality of pixels, each of the pixels comprising a thin film transistor connected to a gate line and a data line and a display element connected to the thin film transistor, a driving voltage generator configured to generate a gate-on voltage and a plurality of gate-off voltages, a timing controller configured to divide an initial driving period into a plurality of setting periods and output a gate-off voltage corresponding to each of the setting periods, and a gate driver circuit configured to generate a gate signal using the gate-on voltage and the gate-off voltage corresponding to a setting period and output the gate signal to the gate line.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: April 3, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung-Suk Jung, Sung-Ryul Kim, Woo-Sung Sohn
  • Publication number: 20180088409
    Abstract: A liquid crystal display includes a first display substrate, a second display substrate facing the first display substrate, and a liquid crystal layer interposed between the first and second display substrates, where the first display substrate includes a lower substrate, a pixel electrode, which is disposed on the lower substrate, and a protrusion pattern, which is disposed on the pixel electrode along an outer edge of the pixel electrode, the second display substrate includes an upper substrate and a light-shielding member, which is disposed on a surface of the upper substrate facing the first display substrate and in which indentation pattern parts are inwardly indented in a plan view, the light-shielding member includes light-shielding parts that are an entirety of the light-shielding member except for the indentation pattern parts, and the indentation pattern parts overlap parts of the pixel electrode.
    Type: Application
    Filed: July 19, 2017
    Publication date: March 29, 2018
    Inventors: Seung Kyu LEE, Gung Wan NAM, Woo Sung SOHN, Mi Hyeon JO, Ki Pyo HONG
  • Patent number: 9834620
    Abstract: Disclosed are a modified conjugated diene-based polymer represented by specific Chemical Formula, a method of preparing the same, and a rubber composition including the same.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: December 5, 2017
    Assignee: LG Chem, Ltd.
    Inventors: He-Seung Lee, No-Ma Kim, Hae-Sung Sohn