Patents by Inventor Sun Chang

Sun Chang 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: 10758893
    Abstract: The present invention provides a solid-phase catalyst for decomposing hydrogen peroxide comprising a permanganate salt and a manganese (II) salt. The solid-phase catalyst stays a solid state in the form of nanoparticles at the time of hydrogen peroxide decomposition, and thus can be recovered for reuse and also has an excellent decomposition rate. In the method for producing a solid-phase catalyst for decomposing hydrogen peroxide according to the present invention, a solid-phase catalyst is produced from a solution containing a permanganate salt, a manganese (II) salt, and an organic acid, so that the produced solid-phase catalyst is precipitated as a solid component even after a catalytic reaction, and thus is reusable and environmentally friendly, and cost reduction can be achieved through the simplification of a catalyst production technique.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 1, 2020
    Assignees: Korea Research Insitute of Chemical Technology, NF CO., Ltd.
    Inventors: Iljeong Heo, Jeong Kwon Suh, Beom Sik Kim, Tae Sun Chang, Yun Ho Jeong, Ji Hoon Park, Soo Min Kim, Ji Na Choi
  • Publication number: 20200239831
    Abstract: Provided is a method of producing a novel microorganism having a minimal genome. In particular, provided are a method of producing a novel microorganism having a smaller genome size than a wild-type, the method including the step of culturing the microorganism in a medium containing LB broth with stepwise decreasing concentrations of the LB broth; and a novel microorganism having a smaller genome size than a wild-type, produced by the above method. Despite the small genome size, the novel microorganism of the present disclosure may have a high growth rate, pyruvate production capacity, and protein translation efficiency thereby being usefully applied to industry such as production of recombinant proteins or pyruvate.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 30, 2020
    Inventors: Sun-Chang Kim, Byung-Kwan Cho, Donghui Choe, Bong Hyun Sung, Jun Hyoung Lee
  • Patent number: 10712621
    Abstract: A liquid crystal display device includes a substrate, and a pixel electrode disposed on the substrate, the pixel electrode including a first stem electrode that extends in a first direction, a second stem electrode that extends in a second direction perpendicular to the first direction and intersects with the first stem electrode, a plurality of branch electrodes, the branch electrodes extending obliquely to the first direction and the second direction from the first stem electrode and the second stem electrode, a first connection electrode that connects distal ends of some of the branch electrodes to each other, extends in the first direction and intersects with the second stem electrode, and a first edge electrode that is connected to one distal end of the second stem electrode and extends in the first direction.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Hyun Lee, Hak Sun Chang, Cheol Shin
  • Patent number: 10682366
    Abstract: The present invention relates to compositions for enhancing innate immunity, comprising ginsenoside F1 as an active ingredient. Specifically, the composition according to the present invention promotes degranulation activity and cell-killing activity of natural killer cells, and increases expressions of cell-killing factors, thereby being effectively used as an innate immunity enhancer.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: June 16, 2020
    Assignee: INTELLIGENT SYNTHETIC BIOLOGY CENTER
    Inventors: Sun Chang Kim, Hun Sik Kim
  • Publication number: 20200124926
    Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in a pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.
    Type: Application
    Filed: December 19, 2019
    Publication date: April 23, 2020
    Inventors: Hak Sun Chang, Eun-Kil Park, Hyun-Ho Kang, Jang Wi Ryu, Seung-Suk Yang, Ki Chul Shin, Se Hyun Lee, Jae-Soo Jang, Hyo Ju Jung
  • Patent number: 10626397
    Abstract: A method of inhibiting the growth of cancer stem cells, including administering an effective amount of a protein kinase D1 expression or activity inhibitor as an active ingredient to a subject having cancer is provided. Further, a method of treating cancer, including administering an effective amount of a protein kinase D1 expression or activity inhibitor, and antitumor agent as active ingredients to a subject having cancer is provided. Further, a method for measuring expression or activity of protein kinase D1 for providing information of breast cancer prognosis, including a step of measuring expression or activity of protein kinase D1 in cells or tissues isolated from a subject is provided.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: April 21, 2020
    Assignee: SOOKMYUNG WOMEN'S UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventors: Jong Hoon Park, Do Yeon Kim, Eun Young Park, Kyung-Hee Chun, Eun Ji Lee, Eun Sun Chang, Hyeok-Gu Kang
  • Publication number: 20200110318
    Abstract: A display device includes a substrate, a first wiring and a second wiring positioned on the substrate, a thin film transistor (“TFT”) connected to the first wiring and the second wiring, and a pixel electrode connected to the TFT and including a transverse branch part, a longitudinal branch part, minute branches extending from the transverse branch part and the longitudinal branch part, and an outer branch part connecting end parts of the minute branches and adjacent to the storage electrode line, where a shortest distance from a center part of at least one side of the outer branch part to at least one side of the first wiring is different from a shortest distance from an edge part of at least one side of the outer branch part to at least one side of the first wiring.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Inventors: Cheol SHIN, Hak Sun CHANG, Se Hyun LEE, Seung Min LEE
  • Publication number: 20200089063
    Abstract: A liquid crystal display, including a first substrate; a gate line and a data line disposed on the first substrate; and a pixel electrode connected to the gate line and the data line and comprising a first sub pixel electrode and a second sub pixel electrode disposed on the first substrate. Each of the first sub pixel electrode and the second sub pixel electrode includes a transverse stem; a longitudinal stem; and a plurality of minute branches extending from transverse stem and the longitudinal stem. A width of the first sub pixel electrode is different from a width of the second sub pixel electrode.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Hak Sun CHANG, Jang Wi RYU, Ki Chul SHIN, Jae-Soo JANG
  • Patent number: 10589256
    Abstract: The present invention relates to a Ru—Pd bimetallic catalyst for use in hydrogenation of a compound, and more particularly to a catalyst prepared by loading both ruthenium and palladium on a g-C3N4 support and to a selective hydrogenation process of a pyridine group in a reaction system containing both a pyridine group and a benzene group using the catalyst.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 17, 2020
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Ji Hoon Park, Kwan Yong Jeong, Soo Min Kim, Tae Sun Chang, Iljeong Heo
  • Patent number: 10551691
    Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in a pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak Sun Chang, Eun-Kil Park, Hyun-Ho Kang, Jang Wi Ryu, Seung-Suk Yang, Ki Chul Shin, Se Hyun Lee, Jae-Soo Jang, Hyo Ju Jung
  • Patent number: 10551689
    Abstract: A display device includes a substrate, a first wiring and a second wiring positioned on the substrate, a thin film transistor (“TFT”) connected to the first wiring and the second wiring, and a pixel electrode connected to the TFT and including a transverse branch part, a longitudinal branch part, minute branches extending from the transverse branch part and the longitudinal branch part, and an outer branch part connecting end parts of the minute branches and adjacent to the storage electrode line, where a shortest distance from a center part of at least one side of the outer branch part to at least one side of the first wiring is different from a shortest distance from an edge part of at least one side of the outer branch part to at least one side of the first wiring.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Cheol Shin, Hak Sun Chang, Se Hyun Lee, Seung Min Lee
  • Patent number: 10527892
    Abstract: A liquid crystal display device includes a base unit, a gate line disposed on the base unit, a data line disposed on the base unit and crossing the gate line while being insulated from the gate line, a shielding electrode disposed on the data line and overlapping the data line and isolated from the pixel electrode and a conductive bar, the conductive bar disposed on the same layer as that on which the shielding electrode is disposed, isolated from the shielding electrode, and extending in parallel to the data line.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hak Sun Chang, Cheol Shin, Ki Chul Shin, Se Hyun Lee, Yun Seok Lee
  • Patent number: 10520781
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: December 31, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Jae-Soo Jang, Ka Eun Kim, Ho Kil Oh, Se Hyun Lee, Hyo Ju Jung, Sang Hyeon Song, Sang Jin Jeon
  • Patent number: 10520777
    Abstract: A liquid crystal display, including a first substrate; a gate line and a data line disposed on the first substrate; and a pixel electrode connected to the gate line and the data line and comprising a first sub pixel electrode and a second sub pixel electrode disposed on the first substrate. Each of the first sub pixel electrode and the second sub pixel electrode includes a transverse stem; a longitudinal stem; and a plurality of minute branches extending from transverse stem and the longitudinal stem. A width of the first sub pixel electrode is different from a width of the second sub pixel electrode.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: December 31, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
  • Publication number: 20190352649
    Abstract: The present invention relates to yeast with an enhanced ginsenoside-producing ability prepared by changing Ald2, Ald6, Zwf1, and Zms1, a method of preparing the yeast, and a method for producing ginsenosides using the yeast.
    Type: Application
    Filed: October 31, 2018
    Publication date: November 21, 2019
    Inventors: Sun-Chang Kim, Ju Young Lee, Jae Eung Kim, In Seung Jang, Jong Geon Jegal
  • Publication number: 20190296048
    Abstract: A display device including a gate line, first and second data lines adjacent to each other in a first direction and crossing the gate line, a first transistor electrically connected to the gate line and the first data line, and a first pixel electrode electrically connected to the first transistor, in which the first pixel electrode includes a first sub-electrode and a second sub-electrode adjacent to each other in the first direction, the first sub-electrode includes a first longitudinal stem extending in a direction substantially parallel to the first data line and overlapping the first data line and a plurality of first branches connected to the first longitudinal stem, and the second sub-electrode includes a second longitudinal stem extending in a direction substantially parallel to the second data line and overlapping the second data line and a plurality of second branches connected to the second longitudinal stem.
    Type: Application
    Filed: September 20, 2018
    Publication date: September 26, 2019
    Inventors: Se Hyun LEE, Hak Sun CHANG, Byoung Sun NA, Seung Min LEE
  • Patent number: 10423043
    Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 24, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Jae-Soo Jang, Ka Eun Kim, Ho Kil Oh, Se Hyun Lee, Hyo Ju Jung, Sang Hyeon Song, Sang Jin Jeon
  • Patent number: 10406204
    Abstract: The present invention provides an antimicrobial peptide polymer comprising at least one monomer which is digested by pepsin, a multimeric antimicrobial peptide complex comprising the polymer and a cell surface anchoring motif linked to the polymer, an antimicrobial microorganism displaying the multimeric antimicrobial peptide complex, an antimicrobial composition comprising the same, a method of treating an infectious disease caused by bacteria, yeast or fungi by administering the antimicrobial composition, and a method for producing the antimicrobial microorganism. According to the invention, living microorganisms displaying an antimicrobial peptide on the cell surface thereof may be administered in vivo without having to lyse the microbial cell and isolate and purify the antimicrobial peptide, so that the antimicrobial peptide exhibits antimicrobial activity. Thus, the antimicrobial peptide may be produced at significantly reduced costs so that it may have widespread use.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: September 10, 2019
    Assignees: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, INTELLIGENT SYNTHETIC BIOLOGY CENTER
    Inventors: Sun-Chang Kim, Ju Ri Shin, Ki Jung Lim, Da Jung Kim, Young Woong Lee, Su A Jang, Bong Hyun Sung
  • Publication number: 20190265559
    Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in a pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 29, 2019
    Inventors: Hak Sun CHANG, Eun-Kil PARK, Hyun-Ho KANG, Jang Wi RYU, Seung-Suk YANG, Ki Chul SHIN, Se Hyun LEE, Jae-Soo JANG, Hyo Ju JUNG
  • Patent number: 10391111
    Abstract: Provided are a pharmaceutical composition for preventing or treating cervical cancer including gypenoside LXXV or a pharmaceutically acceptable salt thereof as an active ingredient, a method of preventing or treating cervical cancer including administering the pharmaceutical composition to a subject excluding humans, a health functional food composition for preventing or improving cervical cancer including gypenoside LXXV as an active ingredient, and a feed composition for preventing or improving cervical cancer including gypenoside LXXV as an active ingredient.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: August 27, 2019
    Assignee: Intelligent Synthetic Biology Center
    Inventors: Chang Hao Cui, Wan Taek Im, Sun Chang Kim