Patents by Inventor Il Chul Kim

Il Chul 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: 12359189
    Abstract: The present application relates to a nucleic acid purification method, specifically to a nucleic acid purification method which includes a first step of crystallizing the nucleic acid using a solution containing a hydrophilic organic solvent; and a second step of drying the crystallized nucleic acid with high-humidity hot air.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: July 15, 2025
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Hwayeon Lim, Min Jong Kim, Changyub Oh, Il Chul Kim, Gyeonghwan Kim, Yu Shin Kim
  • Publication number: 20240051984
    Abstract: Provided is a method of preparing disodium 5?-guanylate heptahydrate crystals from an aqueous 5?-guanylic acid solution.
    Type: Application
    Filed: September 21, 2020
    Publication date: February 15, 2024
    Inventors: Jung Hwa CHOI, Min Jong KIM, Chang Yub OH, Hwa Yeon LIM, Seok Hyun KANG, Yu Shin KIM, Ji Hun KANG, Il Chul KIM, Jae Hun YU
  • Patent number: 11840496
    Abstract: Provided is a method of preparing L-homoserine, the method including contacting an L-homoserine derivative with a solid acid catalyst.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: December 12, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Min Kyu Kang, Jung Min Lee, Min Sup Kim, Il Chul Kim, In Sung Lee, Jun Young Jung
  • Patent number: 11708591
    Abstract: The present disclosure relates to a method for preparing L-cysteine crystals, and L-cysteine crystals prepared by the method. Through the method for preparing L-cysteine crystals of the present disclosure, L-cysteine crystals can be obtained from a natural L-cysteine fermentation broth with a high recovery rate and/or purity without a chemical reaction or the use of an artificial synthetic compound.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: July 25, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Jun-Woo Kim, Jung Min Lee, Se-Hee Jo, Il Chul Kim, In Sung Lee, Jun Young Jung
  • Publication number: 20230103838
    Abstract: Provided is a method of preparing a granular feed additive. When the method of preparing a granular feed additive according to one exemplary embodiment is used, it is possible to prepare a granular feed additive including a high content of basic amino acids while preventing hygroscopicity and agglomeration caused by the basic amino acids. In addition, since the method of preparing a granular feed additive according to one exemplary embodiment may omit a process of using hydrochloric acid, which is generally used to neutralize basic amino acids, it is possible to simplify the process and to solve process problems caused by the use of hydrochloric acid.
    Type: Application
    Filed: January 19, 2021
    Publication date: April 6, 2023
    Inventors: Su Kwon JUNG, Seung Je LEE, In Sung LEE, Seok Tae CHO, Il Chul KIM, Yong Bum SEO, Se Hee JO, Jong Hwan SHIN
  • Publication number: 20220340611
    Abstract: Provided is a method of separating 5?-inosinic acid from a microbial culture broth containing 5?-inosinic acid.
    Type: Application
    Filed: October 17, 2019
    Publication date: October 27, 2022
    Inventors: Jung Hwa CHOI, Min Jong KIM, Chang Yub OH, Hwa Yeon LIM, Jun Woo KIM, Jae Hun YU, Seok Hyun KANG, Yu Shin KIM, Il Chul KIM
  • Patent number: 11473112
    Abstract: The present disclosure relates to a method for preparing L-cysteine crystals, and L-cysteine crystals prepared by the method. Through the method for preparing L-cysteine crystals of the present disclosure, L-cysteine crystals can be obtained from a natural L-cysteine fermentation broth with a high recovery rate and/or purity without a chemical reaction or the use of an artificial synthetic compound.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: October 18, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Jun-Woo Kim, Jung Min Lee, Se-Hee Jo, Il Chul Kim, In Sung Lee, Jun Young Jung
  • Patent number: 11427537
    Abstract: The present disclosure relates to a method for preparing L-cysteine hydrochloride hydrate crystals, and L-cysteine hydrochloride hydrate crystals prepared by the method. Through the method for preparing L-cysteine hydrochloride hydrate crystals of the present disclosure, L-cysteine hydrochloride hydrate crystals can be obtained from a natural L-cysteine fermentation broth with a high recovery rate and/or purity without a chemical reaction or the use of an artificial synthetic compound.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 30, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Jun-Woo Kim, Jung Min Lee, Se-Hee Jo, Il Chul Kim, In Sung Lee, Jun Young Jung
  • Publication number: 20220259141
    Abstract: Provided is a method of preparing L-homoserine, the method including contacting an L-homoserine derivative with a solid acid catalyst.
    Type: Application
    Filed: September 9, 2020
    Publication date: August 18, 2022
    Inventors: Min Kyu KANG, Jung Min LEE, Min Sup KIM, Il Chul KIM, In Sung LEE, Jun Young JUNG
  • Patent number: 11370746
    Abstract: The present disclosure relates to granules comprising an L-amino acid and a method for preparing the same. The method may comprise: (a) preparing a fermentation liquid of L-amino acid; (b) removing moisture from the fermentation liquid of L-amino acid such that the solid content of the fermentation liquid of L-amino acid is in a range of 20% to 90%; (c) forming granulated particles with a moisture content of 0% to 40% by mixing the concentrated fermentation liquid of L-amino acid with a seed; (d) drying the granulated particles formed in Step (c); (e) sieving the granulated particles dried in Step (d); and (f) pulverizing or circulating the particles left in step (e) to be recycled as the seed in step (c).
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: June 28, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Se-Hee Jo, Il Chul Kim, In Sung Lee, Yong Bum Seo, Kang Hoon Lee, Jaeik Kim, Jae Hun Yu, Min Kyung Kwon
  • Publication number: 20220135928
    Abstract: Disclosed are a method and a device for determining an operating condition of a bioreactor. Each of the method and the device receives N experimental data sets, models the bioreactor using the N experimental data sets to construct a bioreactor model, and determines an optimal operation condition based on an operation scheme of the bioreactor, using the constructed bioreactor model.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 5, 2022
    Applicants: CJ CHEILJEDANG CORPORATION, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Dae Shik KIM, Seong Eun BANG, Jong Hwan SHIN, Il Chul KIM, Seon Mi PARK, Jong Min LEE, Jae Han BAE, Hye Ji LEE, Jung Hun KIM
  • Publication number: 20220030914
    Abstract: The present disclosure relates to a granular feed additive capable of reducing hygroscopicity and lumping and caking, the additive including a basic amino acid and an anion represented by Formula 1, wherein a molar ratio of the anion to the basic amino acid is greater than 0.1 and equal to or less than 0.52.
    Type: Application
    Filed: December 7, 2018
    Publication date: February 3, 2022
    Inventors: Su Kwon JUNG, Il Chul KIM, Seok Tae CHO, Se Hee JO, Yong Bum SEO, Seung Je LEE, In Sung LEE
  • Patent number: 11072621
    Abstract: The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH)2 and methionine and adding metal chloride salts, can be used as feeds and feed additives.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: July 27, 2021
    Assignee: GJ CHEILJEDANG CORPORATION
    Inventors: Jun-Woo Kim, Min Kyu Kang, Gyeonghwan Kim, Il Chul Kim, Juun Park, Yong Bum Seo, In Sung Lee, Jun Young Jung, Je-won Hong
  • Patent number: 10981937
    Abstract: The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH)2 and methionine and adding metal nitrate, can be widely used as feeds and feed additives.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: April 20, 2021
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Jun-Woo Kim, Min Kyu Kang, Gyeonghwan Kim, Il Chul Kim, Juun Park, Yong Bum Seo, In Sung Lee, Jun Young Jung, Je-won Hong
  • Publication number: 20210094903
    Abstract: The present disclosure relates to granules comprising an L-amino acid and a method for preparing the same.
    Type: Application
    Filed: March 22, 2019
    Publication date: April 1, 2021
    Inventors: Se-Hee JO, Il Chul KIM, In Sung LEE, Yong Bum SEO, Kang Hoon LEE, Jaeik KIM, Jae Hun YU
  • Publication number: 20210087060
    Abstract: Provided is a method of recovering phosphoric acid from a fermentation broth or a waste liquid thereof and reusing the recovered phosphoric acid in fermentation.
    Type: Application
    Filed: July 12, 2018
    Publication date: March 25, 2021
    Applicant: CJ CheilJedang Corporation
    Inventors: Jun-Woo Kim, Jaeik Kim, Il Chul Kim, In Sung Lee, Seung Hoon Kang, Min Sup Kim, Kang Hoon Lee, Seung-je Lee, Chungkwon Lee, Jun Young Jung
  • Publication number: 20210054424
    Abstract: The present disclosure relates to a method for preparing L-cysteine crystals, and L-cysteine crystals prepared by the method. Through the method for preparing L-cysteine crystals of the present disclosure, L-cysteine crystals can be obtained from a natural L-cysteine fermentation broth with a high recovery rate and/or purity without a chemical reaction or the use of an artificial synthetic compound.
    Type: Application
    Filed: January 30, 2019
    Publication date: February 25, 2021
    Applicant: CJ CheilJedang Corporation
    Inventors: Jun-Woo Kim, Jung Min Lee, Se-Hee Jo, Il Chul Kim, In Sung Lee, Jun Young Jung
  • Publication number: 20200407313
    Abstract: The present disclosure relates to a method for preparing L-cysteine hydrochloride hydrate crystals, and L-cysteine hydrochloride hydrate crystals prepared by the method. Through the method for preparing L-cysteine hydrochloride hydrate crystals of the present disclosure, L-cysteine hydrochloride hydrate crystals can be obtained from a natural L-cysteine fermentation broth with a high recovery rate and/or purity without a chemical reaction or the use of an artificial synthetic compound.
    Type: Application
    Filed: January 30, 2019
    Publication date: December 31, 2020
    Applicant: CJ CheilJedang Corporation
    Inventors: Jun-Woo Kim, Jung Min Lee, Se-Hee Jo, Il Chul Kim, In Sung Lee, Jun Young Jung
  • Publication number: 20200270276
    Abstract: The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH)2 and methionine and adding metal nitrate, can be widely used as feeds and feed additives.
    Type: Application
    Filed: July 6, 2018
    Publication date: August 27, 2020
    Inventors: Jun-Woo KIM, Min Kyu KANG, Gyeonghwan KIM, Il Chul KIM, Juun PARK, Yong Bum SEO, In Sung LEE, Jun Young JUNG, Je-won HONG
  • Publication number: 20200157121
    Abstract: The present disclosure relates to a preparation method of a methionine-metal chelate, and the methionine-metal chelate, which is prepared by first reacting Ca(OH)2 and methionine and adding metal chloride salts, can be used as feeds and feed additives.
    Type: Application
    Filed: July 6, 2018
    Publication date: May 21, 2020
    Inventors: Jun-Woo KIM, Min Kyu KANG, Gyeonghwan KIM, Il Chul KIM, Juun PARK, Yong Bum SEO, In Sung LEE, Jun Young JUNG, Je-won HONG