Patents by Inventor Sung-Kyoung Kim

Sung-Kyoung Kim 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: 12139604
    Abstract: The present disclosure provides a polyalkylene carbonate-based resin having excellent thermal stability, thereby having an improved heat shrinkage phenomenon, and a molded article produced using the same. The polyalkylene carbonate-based resin includes 100 parts by weight of a base resin including a polyalkylene carbonate resin and a polylactide resin, and 5 parts by weight to 10 parts by weight of a heat shrinkage prevention agent, wherein the base resin includes the polyalkylene carbonate resin and the polylactide resin in a weight ratio of 6:4 to 4:6, and the heat shrinkage prevention agent is one or more selected from the group consisting of a polyalkyl(meth)acrylate-based resin, a polyalphaolefin-vinyl acetate-based resin, and a polyoxyalkylene-based resin.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: November 12, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Won Hee Woo, Seung Young Park, Sung Kyoung Kim, Sang Cheol Shin, Kyung Min Min, Won Seok Kim
  • Patent number: 12123872
    Abstract: Embodiments of the present invention provide a lateral flow assay method and strip wherein a sample is injected into a sample pad, a preconcentration kit is coupled to the sample pad to preconcentrate analytes, and a conjugate pad or a test pad is connected to the sample pad to transfer the analytes to the conjugate pad or the test pad, whereby a biomarker present at a low concentration can be detected.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: October 22, 2024
    Assignee: Calth, Inc.
    Inventors: Jeong Hoon Lee, Yong Kyoung Yoo, Sung Il Han, Cheon Jung Kim
  • Publication number: 20240299359
    Abstract: Disclosed are a pharmaceutical composition for animals containing 5-hydroxy-1-methylimidazolidine-2,4-dione as an active ingredient, more specifically, a composition for preventing or treating kidney disease in animals containing 5-hydroxy-1-methylimidazolidine-2,4-dione or a pharmaceutically acceptable salt thereof as an active ingredient, a method of treating kidney disease in animals using the compound, and a functional feed for preventing or ameliorating kidney disease in animals containing the compound as an active ingredient. The 5-hydroxy-1-methylimidazolidine-2,4-dione can effectively ameliorate and treat symptoms of kidney disease when administered to companion animals such as dogs or cats with kidney disease. Therefore, there are provided a novel agent and method for treating kidney disease of animals that can effectively treat kidney disease, which is the cause of high mortality in companion animals.
    Type: Application
    Filed: June 28, 2022
    Publication date: September 12, 2024
    Applicants: KYONGBO PHARM. CO., LTD., NDIC CO., LTD.
    Inventors: Jeong Seok HAN,, Yong Kyu PARK, Sung Hun BANG, Jae Hyun KIM, Ha Lim JANG, Ye Rin KIM, Su Kyoung LEE, Taek Joo LIM
  • Patent number: 12076714
    Abstract: The present disclosure relates to a method for separating an organozinc catalyst from a polyalkylene carbonate polymerization solution, and the method of the present disclosure includes: stirring and aging a polymerization solution including a polyalkylene carbonate resin, an organozinc catalyst, an alkylene oxide and a polymerization solvent; and filtering the polymerization solution after completing the aging.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 3, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Kyung Min Min, Seung Young Park, Sung Kyoung Kim, Sang Cheol Shin, Won Seok Kim, Won Hee Woo
  • Patent number: 12050224
    Abstract: Disclosed are a compound with near-infrared fluorescence that selectively binds to tau aggregates, a method for preparing the same, a tau-targeting near-infrared fluorescent probe including the compound, a composition for detecting a tau fiber protein containing the near-infrared fluorescent probe as an active ingredient, and the use of the composition for the diagnosis of tauopathy. In particular, the compound does not bind to an amyloid beta protein and has high selectivity to a tau aggregate, specifically reported as an etiology of the initial state of tauopathy, thus being useful as a near-infrared fluorescent detector for detecting a tau fiber protein for early diagnosis of a tauopathy including Alzheimer's disease.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: July 30, 2024
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Ghil Soo Nam, Hyun Ah Choo, Ahmed A. Elbatrawy, Gyo Chang Keum, Yun Kyung Kim, Sung Su Lim, Jae Kyun Lee, Eun Kyoung Bang
  • Patent number: 11976164
    Abstract: The present disclosure relates to a method of preparing an organic zinc catalyst through solid phase blending that does not require a solvent and a washing process, and a method of preparing a polyalkylene carbonate resin by using the organic zinc catalyst prepared thereby.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 7, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyoung Kim, Seung Young Park, Sang Cheol Shin, Kyung Min Min
  • Patent number: 11944961
    Abstract: The present disclosure relates to a method for regenerating a waste organic zinc catalyst by performing surface modification using a dicarboxylic acid and a zinc compound. When using the method for regenerating an organic zinc catalyst according to the present disclosure, the organic zinc catalyst can be regenerated using a convenient method which modifies the dicarboxylic acid and the zinc compound in an alternately repeated manner.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 2, 2024
    Assignee: LG Chem, Ltd.
    Inventor: Sung Kyoung Kim
  • Patent number: 11840629
    Abstract: The present disclosure relates to a polyalkylene carbonate-based resin having an excellent effect of suppressing a blocking phenomenon as well as excellent mechanical properties and thermal stability, a method of preparing the same, and a molded article prepared from the polyalkylene carbonate-based resin.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: December 12, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Sung Kyoung Kim, Seung Young Park
  • Publication number: 20220220300
    Abstract: The present disclosure provides a polyalkylene carbonate-based resin having excellent thermal stability, thereby having an improved heat shrinkage phenomenon, and a molded article produced using the same. The polyalkylene carbonate-based resin includes 100 parts by weight of a base resin including a polyalkylene carbonate resin and a polylactide resin, and 5 parts by weight to 10 parts by weight of a heat shrinkage prevention agent, wherein the base resin includes the polyalkylene carbonate resin and the polylactide resin in a weight ratio of 6:4 to 4:6, and the heat shrinkage prevention agent is one or more selected from the group consisting of a polyalkyl(meth)acrylate-based resin, a polyalphaolefin-vinyl acetate-based resin, and a polyoxyalkylene-based resin.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 14, 2022
    Inventors: Won Hee WOO, Seung Young PARK, Sung Kyoung KIM, Sang Cheol SHIN, Kyung Min MIN, Won Seok KIM
  • Publication number: 20220143589
    Abstract: The present invention relates to a method for separating an organozinc catalyst from a polyalkylene carbonate polymerization solution, and the method of the present invention includes: stirring and aging a polymerization solution including a polyalkylene carbonate resin, an organozinc catalyst, an alkylene oxide and a polymerization solvent; and filtering the polymerization solution after completing the aging.
    Type: Application
    Filed: September 28, 2020
    Publication date: May 12, 2022
    Inventors: Kyung Min MIN, Seung Young PARK, Sung Kyoung KIM, Sang Cheol SHIN, Won Seok KIM, Won Hee WOO
  • Publication number: 20220023850
    Abstract: The present disclosure relates to a method for regenerating a waste organic zinc catalyst by performing surface modification using a dicarboxylic acid and a zinc compound. When using the method for regenerating an organic zinc catalyst according to the present disclosure, the organic zinc catalyst can be regenerated using a convenient method which modifies the dicarboxylic acid and the zinc compound in an alternately repeated manner.
    Type: Application
    Filed: December 20, 2019
    Publication date: January 27, 2022
    Inventor: Sung Kyoung KIM
  • Patent number: 11219887
    Abstract: The disclosed relates to a method for preparing an organic zinc catalyst used in the synthesis of a polyalkylene carbonate resin, an organic zinc catalyst provided therefrom, and a method for preparing a polyalkylene carbonate resin using the catalyst. The organic zinc catalyst according to the present disclosure includes a predetermined amount of Zr on the surface through a simple process, and thus can exhibit improved catalytic activity as compared to a conventional catalyst in the polymerization process for preparing a polyalkylene carbonate resin.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: January 11, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Jungup Bang, Kyosung Park, Seung Young Park, Gyo Hyun Hwang, Byung Hee Choi, Sung-Kyoung Kim, Yongju Bang
  • Publication number: 20210332236
    Abstract: The present disclosure relates to a polyalkylene carbonate-polylactic acid composite having improved mechanical properties as well as excellent transparency and flexibility, a method of preparing the same, and a molded article prepared by using the polyalkylene carbonate-polylactic acid composite.
    Type: Application
    Filed: December 20, 2019
    Publication date: October 28, 2021
    Inventors: Sung Kyoung KIM, Seung Young PARK
  • Publication number: 20210253790
    Abstract: The present disclosure relates to a method for separating an organic zinc catalyst dispersed in a polyalkylene carbonate resin solution by filtering the polyalkylene carbonate resin solution using a composite filtering membrane, which is a composite material comprising a hydroxyl group-containing material and polyolefin material and has a form in which one or both surfaces of the polyolefin material is coated with the hydroxyl group-containing material.
    Type: Application
    Filed: December 19, 2019
    Publication date: August 19, 2021
    Inventors: Kyung Min MIN, Sung Kyoung KIM, Seung Young PARK, Sang Cheol SHIN
  • Publication number: 20210246305
    Abstract: The present disclosure relates to a polyalkylene carbonate-based resin having an excellent effect of suppressing a blocking phenomenon as well as excellent mechanical properties and thermal stability, a method of preparing the same, and a molded article prepared from the polyalkylene carbonate-based resin.
    Type: Application
    Filed: January 9, 2020
    Publication date: August 12, 2021
    Inventors: Sung Kyoung KIM, Seung Young PARK
  • Publication number: 20210246263
    Abstract: The present disclosure relates to a method of preparing an organic zinc catalyst through solid phase blending that does not require a solvent and a washing process, and a method of preparing a polyalkylene carbonate resin by using the organic zinc catalyst prepared thereby.
    Type: Application
    Filed: December 20, 2019
    Publication date: August 12, 2021
    Inventors: Sung Kyoung KIM, Seung Young PARK, Sang Cheol SHIN, Kyung Min MIN
  • Patent number: 11036472
    Abstract: A random number generator generates a random number by using at least two algorithms. A security device includes the random number generator. The random number generator includes a random seed generator and a post processor. The random seed generator is configured to receive an entropy signal and to generate a random seed of a digital region generated by using the entropy signal. The post processor is configured to generate a random number from the random seed by using a first algorithm and a second algorithm. A bias property represents unbiasedness of a result value, and a bias property of the first algorithm is different from a bias property of the second algorithm.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: June 15, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Kyoung Kim, Joong-Chul Yoon, Seung-Won Lee
  • Patent number: 10941291
    Abstract: The disclosed relates to a polyalkylene carbonate resin composition, and more specifically, to a polyalkylene carbonate resin composition containing polyalkylene carbonate and polyketone. The polyalkylene carbonate resin composition particularly exhibits excellent thermal stability, while having excellent transparency and flexibility, oxygen barrier properties, and mechanical and chemical properties.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 9, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Seung Young Park, Sung-Kyoung Kim
  • Patent number: 10941261
    Abstract: The disclosed relates to a polyalkylene carbonate-based resin film. More specifically, the present disclosure relates to a polyalkylene carbonate resin-based film comprising a blend resin in which a polyalkylene carbonate resin and a polyketone resin are mixed in a specified amount, thereby ensuring both excellent tensile strength and tear strength without deteriorating elongation properties possessed by the polyalkylene carbonate resin.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: March 9, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Min Kim, Hyun Ju Cho, Sung-Kyoung Kim, Seung Young Park
  • Patent number: 10865274
    Abstract: Provided are a poly(alkylene carbonate) resin composition having improved mechanical properties, heat resistance, and processability, a preparation method of the poly(alkylene carbonate) resin composition, a molded article formed by using the composition, and a preparation method of the molded article, in which the poly(alkylene carbonate) resin composition includes poly(alkylene carbonate) having a weight average molecular weight of 100,000 g/mol to 500,000 g/mol and polyamide having a melting point of 180° C. to 194° C. at a weight ratio of 95:5 to 75:25.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 15, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Kyoung Kim, Hyun Min Kim, Hyun Ju Cho, Seung Young Park