Patents by Inventor Ji Sun Lee

Ji Sun Lee 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: 20230231113
    Abstract: A cathode active material precursor for a lithium secondary battery is provided according to embodiments of the present invention. The cathode active material precursor for a lithium secondary battery includes a core including a first transition metal composite hydroxide, and a shell which is formed on the core and includes a second transition metal composite hydroxide in which the first transition metal composite hydroxide is doped with a doping metal including at least one of Group 4 to Group 12 metals, wherein the cathode active material precursor has a particle size distribution degree of 0.8 to 1.6 defined by Equation 1. Thereby, it is possible to suppress capacity degradation of the secondary battery due to doping while improving the structural stability of the cathode active material precursor.
    Type: Application
    Filed: January 6, 2023
    Publication date: July 20, 2023
    Inventors: Ji Hoon CHOI, Hee Jun KWEON, Sang Bok KIM, Sang Min PARK, Ji Sun LEE, Jeong Hoon JEUN, Je Nam CHOI
  • Patent number: 11697673
    Abstract: The present disclosure relates to a variant of cAMP receptor protein of Escherichia coli with alanine at position 35, a microorganism including the same, and a method of producing an L-amino acid using the same.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: July 11, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Seok Myung Lee, Ki Yong Cheong, Chang Il Seo, Ji Sun Lee
  • Publication number: 20230187618
    Abstract: A cathode active material for a lithium secondary battery according to exemplary embodiments may include lithium metal oxide particles; and a coating layer which is formed on surfaces of the lithium metal oxide particles and contains a first metal and a second metal, wherein the coating layer may include a region having a predetermined tendency that the concentrations of the first metal and the second metal are changed. In addition, a method of manufacturing the cathode active material for a lithium secondary battery is provided.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 15, 2023
    Inventors: Sung Soon PARK, Ji Hoon CHOI, Ji Sun LEE, Tae Kyoung LEE, Dong ll JANG
  • Publication number: 20230178854
    Abstract: The present invention relates to a method for manufacturing a polyimide-powder composite separator using water and a polyimide-powder composite separator manufactured by the method, and is environmentally friendly since an organic solvent is not used in the overall process of manufacturing the composite separator and has advantageous effects in terms of time, cost, and manufacturing process since a high temperature/high pressure environment is not required.
    Type: Application
    Filed: October 11, 2022
    Publication date: June 8, 2023
    Inventors: Seungwon SONG, Chan Moon CHUNG, Yun Je CHOI, Hyun Soo AN, Seung Won JIN, Seung Hyun LEE, Jun Seo LEE, Dam Bi KIM, Ji Sun LEE, Hyun Woo KIM, Kang Hoon YOON
  • Patent number: 11657437
    Abstract: An apparatus for providing drone data provides a method of matching a user who needs drone data of a certain area with at least one provider capable of providing drone data of a part or the entirety of the certain area.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: May 23, 2023
    Assignee: ANGELSWING INC
    Inventors: Won Nyoung Park, Ji Sun Lee, Jun Young Jang, Joon Mo Yang
  • Publication number: 20230145513
    Abstract: Provided is a tether anchor assembly for a vehicle including a seat frame including a support panel coupled to a back frame, the support panel including an anchor groove provided therein, and a mounting wire exposed to an outside through the anchor groove, and a tether cover configured to allow the mounting wire to be fitted and coupled to an inside thereof and to be exposed to the outside through the anchor groove when inserted into the anchor groove, and to be directly coupled to the support panel to fix a position of insertion thereof into the anchor groove.
    Type: Application
    Filed: November 7, 2022
    Publication date: May 11, 2023
    Inventors: Suk Won Hong, Sang Hyeok Yun, Sung Man Seo, Sung Hak Hong, Jong Seok Han, Ji Sun Lee
  • Publication number: 20230117843
    Abstract: Embodiments of the present invention provide a cathode active material for a lithium secondary battery. The cathode active material for a lithium secondary battery includes lithium-transition metal composite oxide particles, and a coating formed on each of the lithium-transition metal composite oxide particles. The coating includes a lithium-sulfur compound and a metal hydroxide. A residual lithium on a surface of the cathode active material is sufficiently removed to improve an ionic conductivity and low-resistance.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 20, 2023
    Inventors: Sang Bok KIM, Sang Min PARK, Ji Hoon CHOI, Jung Moon SUNG, Sang Hye SHIN, Ji Sun LEE, Jae Young CHOI
  • Publication number: 20230110449
    Abstract: A method of providing information on a social networking service (SNS) activity to a chatroom, performed by a user terminal, includes: transmitting, to a server, an SNS request for each of a plurality of anonymous profiles created to be interlinked with an account of a user for an instant messaging service (IMS); displaying information on an SNS activity performed through a first anonymous profile selected by the user in correspondence with a chatroom in which the user participates in the IMS, from among the plurality of anonymous profiles, in the chatroom; receiving an input of changing a profile of the user, selected corresponding to the chatroom, from the first anonymous profile to a second anonymous profile; and displaying information on an SNS activity performed through the second anonymous profile in the chatroom.
    Type: Application
    Filed: December 9, 2022
    Publication date: April 13, 2023
    Inventors: Ji Sun LEE, Hyun Young PARK, Seong Mi LIM, Young Min PARK, Doo Won LEE, Eun Jung KO, Jae Lin LEE, Kwang Hui LIM, Ki Yong SHIM, Sun Ho CHOI, Kwang Hoon CHOI, Hwa Young LEE, Jae Gil LEE, Kyong Rim KIM, Soo Min CHO
  • Publication number: 20230108931
    Abstract: A cathode active material for a lithium secondary battery comprises lithium-nickel composite metal oxide particles, each of which has a secondary particle structure in which primary particles are aggregated. The lithium-nickel composite metal oxide particles include a first element including at least one element selected from the group consisting of B, Al, Si, Ti, V, Mn, Fe, Co, Cu, Zn, Zr, Mo and W, and a second element having an ionic radius of 80 pm or more. The second element is different from nickel and the first element. The second element is present on an outer surface of the secondary particle, at grain boundaries between the primary particles and at an inside of the primary particles.
    Type: Application
    Filed: September 28, 2022
    Publication date: April 6, 2023
    Inventors: Jae Ho Choi, Jik Soo Kim, Mi Jung Noh, Hyo Shik Kil, Ji Sun Lee
  • Publication number: 20230100240
    Abstract: The present disclosure provides a reclining seat assembly device for a vehicle in which a guide pin mounted on a mounting frame of a leg unit is inserted into a guide hole formed in a floor panel so as to be prevented from being separated from the guide hole during reclining of a seatback, whereby the reclining seat is prevented from deviating from a predetermined position on the floor panel and subsequent processes for assembling the reclining seat can be smoothly carried out.
    Type: Application
    Filed: September 21, 2022
    Publication date: March 30, 2023
    Inventors: Ji Sun Lee, Sung Hak Hong, Soo Hyun Moon, Jun Yong Kim
  • Patent number: 11572341
    Abstract: The present invention relates to a guanidine compound and a use thereof, and more specifically, to a guanidine derivative showing excellent effects of inhibiting cancer cell proliferation, cancer metastasis, and cancer recurrence; a preparation method thereof; and a pharmaceutical composition containing the same as an active ingredient. Compared to existing drugs, the guanidine derivative according to the present invention shows excellent effects of inhibiting cancer cell proliferation, cancer metastasis, and cancer recurrence even with small doses, and may thus be effectively used in preventing or treating various cancers such as uterine cancer, breast cancer, stomach cancer, brain cancer, rectal cancer, colorectal cancer, lung cancer, skin cancer, blood cancer, liver cancer, etc., inhibiting cancer cell proliferation and cancer metastasis.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: February 7, 2023
    Assignee: ImmunoMet Therapeutics Inc.
    Inventors: Hong Woo Kim, Jae Kap Jeong, Ji Sun Lee, Hye Jin Heo, Hong Bum Lee, Ji Ae Kook, Sung Wuk Kim
  • Publication number: 20230012923
    Abstract: The present disclosure relates to an L-threonine export protein variant, a microorganism including same, and a method for production of L-threonine using same.
    Type: Application
    Filed: September 9, 2020
    Publication date: January 19, 2023
    Inventors: Chang Il SEO, Hyo Jin KIM, Ji Sun LEE, Sol CHOI
  • Patent number: 11555213
    Abstract: The present disclosure relates to modified homoserine dehydrogenase and a method for producing a homoserine-derived L-amino acid using the same.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: January 17, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Hyo Jin Kim, Lan Huh, Sang Jo Lim, Hyun Ah Kim, Hyoung Joon Kim, Chang il Seo, Seung Bin Lee, Ji Sun Lee
  • Patent number: 11549116
    Abstract: A nucleic acid molecule comprising a variant inc coding strand is disclosed as a regulator of plasmid copy number. Also disclosed is a replicon comprising the nucleic acid molecule, a promoter, and an origin of replication. Also disclosed is a vector comprising the replicon. Also disclosed is a recombinant microorganism comprising the vector.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: January 10, 2023
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Sun Lee, Dong Eun Chang, Sang Jun Kim, So Young Kim
  • Patent number: 11539656
    Abstract: A method of providing information on a social networking service (SNS) activity to a chatroom, performed by a server, includes: providing an SNS for each of a plurality of anonymous profiles created to be interlinked with an account for an instant messaging service (IMS); receiving information on an SNS activity performed through a first anonymous profile selected corresponding to a chatroom of the IMS, among the plurality of anonymous profiles of a user participating in the chatroom; providing the information on the SNS activity performed through the first anonymous profile to the chatroom; receiving a request to change the profile of the user selected corresponding to the chatroom from the first anonymous profile to a second anonymous profile; receiving information on an SNS activity performed through the second anonymous profile; and providing the information on the SNS activity performed through the second anonymous profile to the chatroom.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: December 27, 2022
    Assignee: KAKAO CORP.
    Inventors: Ji Sun Lee, Hyun Young Park, Seong Mi Lim, Young Min Park, Doo Won Lee, Eun Jung Ko, Jae Lin Lee, Kwang Hui Lim, Ki Yong Shim, Sun Ho Choi, Kwang Hoon Choi, Hwa Young Lee, Jae Gil Lee, Kyong Rim Kim, Soo Min Cho
  • Publication number: 20220344642
    Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle containing nickel, and a coating material formed on at least a portion of a surface of the lithium metal oxide particle. The coating material includes a metalloid element or a metal element. A surface coating level of the cathode active material is 0.3 or more.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 27, 2022
    Inventors: Sang Wook LEE, Young Hoon DO, Young Uk PARK, Yong Hyun CHO, Seung Ok LEE, Ji Sun LEE
  • Patent number: 11473113
    Abstract: Provided are a cAMP receptor protein variant and coding sequence, a microorganism including the same, and a method of producing a L-amino acid using the same.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: October 18, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Seok Myung Lee, Ki Yong Cheong, Chang Il Seo, Ji Sun Lee
  • Patent number: 11465989
    Abstract: The present invention relates to guanidine compounds for inhibiting mitochondrial oxidative phosphorylation (OXPHOS) and use thereof. More specifically, the present invention relates to a pharmaceutical composition for preventing or treating a OXPHOS-related disease, particularly cancer, by inhibiting mitochondrial oxidative phosphorylation and reprogramming cellular metabolism.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: October 11, 2022
    Assignee: ImmunoMet Therapeutics, Inc.
    Inventors: Sung Wuk Kim, Hong Woo Kim, Sang Hee Yoo, Ji Sun Lee, Hye Jin Heo, Hong Bum Lee, Ji Ae Kook, Young Woo Lee, Mi Jeong Kim, Woong Cho
  • Publication number: 20220288222
    Abstract: The present invention relates to a use of a recombinant protein in which an interferon-beta protein and an antibody binding to a HER2 antigen are fused for the purpose of treating cancer patients of which the HER2 expression level is IHC 1+ or higher. The recombinant protein can exhibit efficacy better than conventional antibody therapeutic agents through cancer-specific anti-cancer immune responses in patients, thereby being used for more patients, and thus is effectively usable as a novel agent for treating cancer.
    Type: Application
    Filed: August 19, 2020
    Publication date: September 15, 2022
    Inventors: Hae Min JEONG, Ji Sun LEE
  • Patent number: 11407983
    Abstract: A nucleic acid molecule comprising a variant rpoC coding sequence is disclosed. The variant rpoC coding sequence encodes a variant RpoC which regulates copy number of a plasmid. Also disclosed are a recombinant microorganism comprising the nucleic acid molecule, a method for regulating copy number of a subject vector in the recombinant microorganism, and a method for making a target product by use of the recombinant microorganism.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 9, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Sun Lee, Dong Eun Chang, So Young Kim