Patents by Inventor Tae-chul (Edward) Jung

Tae-chul (Edward) Jung 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: 20250136724
    Abstract: A method for continuously preparing a catalyst composition for preparing a catalyst composition having improved catalyst activity by pre-treating a hydrogen-bonded lanthanide rare earth element compound and/or an oligomer type of a lanthanide rare earth element compound of Formula 1, which induce the deterioration of the catalyst activity, and a method for preparing a conjugated diene-based polymer using the catalyst composition prepared thereby are described, wherein all the variables are described herein.
    Type: Application
    Filed: February 15, 2023
    Publication date: May 1, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Suk Youn Kang, Tae Chul Lee, Hae Sung Sohn, Dong Hui Kim, Sung HO Park, Ju Ryang Bae, Seo Won Choi
  • Patent number: 12275806
    Abstract: The present invention relates to a method for preparing a modification initiator, the method capable of reducing side reactions to the minimum and obtaining the modification initiator with a high conversion rate, and an apparatus for performing the same, wherein the method includes (S1) reacting a first fluid including a modification functional group-containing compound and a conjugated diene-based monomer and a second fluid including a polymerization initiation functional group-containing compound, and (S2) obtaining a third fluid including a modification initiator prepared by the reaction of Step S1, wherein the modification functional group-containing compound is used in a ratio of greater than 1 mole based on 1 mole of the polymerization initiation functional group-containing compound, the conjugated diene-based monomer is used in a ratio of 1 mole to 4 moles based on 1 mole of the modification functional group-containing compound, and Step S1 and Step S2 are continuously performed.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: April 15, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Tae Chul Lee, He Seung Lee, No Ma Kim, Heung Yeal Choi, Youk Reol Na
  • Publication number: 20250115690
    Abstract: A method for preparing a catalyst composition for preparing a catalyst composition having improved catalyst activity by pre-treating a hydrogen-bonded lanthanide rare earth element compound and/or an oligomer type of a lanthanide rare earth element compound of Formula 1, which induce the deterioration of the catalyst activity, and a method for preparing a conjugated diene-based polymer using the catalyst composition prepared thereby are described, wherein all the variables are described herein.
    Type: Application
    Filed: February 15, 2023
    Publication date: April 10, 2025
    Applicant: LG CHEM, LTD.
    Inventors: Tae Chul Lee, Ju Ryang Bae, Seo Won Choi, Hae Sung Sohn, Suk Youn Kang, Sung Ho Park
  • Patent number: 12270108
    Abstract: The present invention relates to a plated steel sheet having excellent corrosion resistance, workability and surface quality, and at the same time, capable of reducing occurrence of liquid metal embrittlement (LME).
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 8, 2025
    Assignee: POSCO CO., LTD
    Inventors: Il-Ryoung Sohn, Sung-Joo Kim, Tae-Chul Kim, Bong-Hwan Yoo, Myung-Soo Kim, Jong-Sang Kim, Sang-Tae Han, Kwang-Won Kim
  • Publication number: 20250101154
    Abstract: Provided are a method for preparing a catalyst composition for preparing a catalyst composition having improved catalyst activity by pre-treating a hydrogen-bonded lanthanide rare earth element compound and/or an oligomer type of a lanthanide rare earth element compound of Formula 1, which induce the deterioration of the catalyst activity, and a method for preparing a conjugated diene-based polymer using the catalyst composition prepared thereby, wherein all the variables are described herein.
    Type: Application
    Filed: February 15, 2023
    Publication date: March 27, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Seo Won Choi, Tae Chul Lee, Ju Ryang Bae, Dong Hui Kim, Hyun Woong Park, Sung Ho Park
  • Publication number: 20250051929
    Abstract: The present invention relates to a solution composition capable of improving pitting corrosion resistance and blackening resistance of a steel sheet, a steel sheet surface-treated using same, and a method for manufacturing the steel sheet.
    Type: Application
    Filed: December 19, 2022
    Publication date: February 13, 2025
    Applicant: POSCO CO., LTD
    Inventors: Chang-Hoon Choi, Soo-Hyoun Cho, Tae-Chul Kim, Sung-Joo Kim
  • Patent number: 12209149
    Abstract: A continuous preparation system of a conjugated diene-based polymer having improved rolling resistance properties is provided. By utilizing the continuous preparation system a polymerization conversion ratio at an initial stage of polymerization is easy to control, long time operation is possible and productivity is excellent.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: January 28, 2025
    Assignee: LG Chem, Ltd.
    Inventors: Tae Chul Lee, Su Hwa Kim, No Ma Kim, Jun Seok Ko
  • Publication number: 20250000143
    Abstract: Provided herein is an aerosol-generating article with enhanced vapor production. The aerosol-generating article according to some embodiments of the present disclosure includes a medium portion, a support structure which is disposed downstream of the medium portion and includes a first tubular structure having a first hollow formed therein, a cooling structure which is disposed downstream of the support structure and includes a second tubular structure having a second hollow formed therein, and a mouthpiece portion which is disposed downstream of the cooling structure. Here, an upstream end of the second tubular structure may abut a downstream end of the first tubular structure, and an average cross-sectional area of the second hollow may be larger than an average cross-sectional area of the first hollow. The cross-sectional area difference enhances an air flow diffusion effect, thereby eventually improving vapor production of the aerosol-generating article.
    Type: Application
    Filed: August 29, 2024
    Publication date: January 2, 2025
    Applicant: KT&G CORPORATION
    Inventors: Jung Kyu SEO, Tae Chul SHIN, Hee Tae JUNG, Young Rim HAN
  • Publication number: 20250003029
    Abstract: The present invention provides a plated steel sheet having excellent in corrosion resistance and surface appearance and a method for manufacturing the same. And more specifically, the present invention provides a Zn-Mg-Al-based plated steel sheet having excellent in corrosion resistance, surface appearance and image clarity after painting, and a method for manufacturing the same.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 2, 2025
    Applicant: POSCO CO., LTD
    Inventors: Tae-Chul Kim, Sung-Joo Kim, Myung-Soo Kim, Bong-Hwan Yoo, Yong-Kyun Cho, Il-Ryoung Sohn
  • Publication number: 20250000142
    Abstract: Provided herein is an aerosol-generating article with enhanced vapor production. The aerosol-generating article according to some embodiments of the present disclosure includes a medium portion, a support structure which is disposed downstream of the medium portion and includes a first tubular structure having a first hollow formed therein, a cooling structure which is disposed downstream of the support structure and includes a second tubular structure having a second hollow formed therein, and a mouthpiece portion which is disposed downstream of the cooling structure. Here, an upstream end of the second tubular structure may abut a downstream end of the first tubular structure, and an average cross-sectional area of the second hollow may be larger than an average cross-sectional area of the first hollow. The cross-sectional area difference enhances an air flow diffusion effect, thereby eventually improving vapor production of the aerosol-generating article.
    Type: Application
    Filed: August 29, 2024
    Publication date: January 2, 2025
    Applicant: KT&G CORPORATION
    Inventors: Jung Kyu SEO, Tae Chul Shin, Hee Tae Jung, Young Rim Han
  • Publication number: 20240415175
    Abstract: Provided herein is an aerosol-generating article with enhanced vapor production. The aerosol-generating article according to some embodiments of the present disclosure includes a medium portion, a support structure which is disposed downstream of the medium portion and includes a first tubular structure having a first hollow formed therein, a cooling structure which is disposed downstream of the support structure and includes a second tubular structure having a second hollow formed therein, and a mouthpiece portion which is disposed downstream of the cooling structure. Here, an upstream end of the second tubular structure may abut a downstream end of the first tubular structure, and an average cross-sectional area of the second hollow may be larger than an average cross-sectional area of the first hollow. The cross-sectional area difference enhances an air flow diffusion effect, thereby eventually improving vapor production of the aerosol-generating article.
    Type: Application
    Filed: August 29, 2024
    Publication date: December 19, 2024
    Applicant: KT&G CORPORATION
    Inventors: Jung Kyu SEO, Tae Chul SHIN, Hee Tae JUNG, Young Rim HAN
  • Publication number: 20240368736
    Abstract: The present invention provides a plated steel sheet excellent in corrosion resistance and excellent in at least one of weldability and phosphatability, and a manufacturing method therefor. And more specifically, the present invention provides a Zn—Mg—Al-based plated steel sheet excellent in corrosion resistance, weldability and phosphatability, and a manufacturing method therefor.
    Type: Application
    Filed: September 28, 2022
    Publication date: November 7, 2024
    Applicant: POSCO CO., LTD
    Inventors: Sung-Joo Kim, Tae-Chul Kim, Myung-Soo Kim, Bong-Hwan Yoo, Yong-Kyun Cho
  • Publication number: 20240360541
    Abstract: The present invention provides a Zn—Mg—Al plated steel sheet having excellent in corrosion resistance and bendability, and a method for manufacturing same. And more specifically, the present invention provides a Zn—Mg—Al-based plated steel sheet having excellent in corrosion resistance, bendability, and plating adhesion, and a method for manufacturing the same.
    Type: Application
    Filed: September 27, 2022
    Publication date: October 31, 2024
    Applicant: POSCO CO., LTD
    Inventors: Tae-Chul Kim, Sung-Joo Kim, Myung-Soo Kim, Bong-Hwan Yoo, Yong-Kyun Cho, Il-Ryoung Sohn
  • Publication number: 20240360540
    Abstract: The present invention provides a Zn—Mg—Al-based plated steel sheet having excellent in corrosion resistance and whiteness, and a method for manufacturing the same. And more specifically, the present invention provides a Zn—Mg—Al-based plated steel sheet having excellent in corrosion resistance, whiteness and bendability, and a method for manufacturing the same.
    Type: Application
    Filed: September 28, 2022
    Publication date: October 31, 2024
    Applicant: POSCO CO., LTD
    Inventors: Tae-Chul Kim, Sung-Joo Kim, Myung-Soo Kim, Bong-Hwan Yoo, Yong-Kyun Cho, Il-Ryoung Sohn
  • Publication number: 20240344191
    Abstract: Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.
    Type: Application
    Filed: June 6, 2024
    Publication date: October 17, 2024
    Applicants: POSCO CO., LTD, STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION, POSCO COATED & COLOR STEEL CO., LTD.
    Inventors: Sung-Joo Kim, Kyung-Kwan Park, Moon-Hi Hong, Heung-Yun Kim, Tae-Yeul Park, Myung-Soo Kim, Il-Ryoung Sohn, Tae-Chul Kim, Dae-Young Kang
  • Patent number: 12102122
    Abstract: Provided herein is an aerosol-generating article with enhanced vapor production. The aerosol-generating article according to some embodiments of the present disclosure includes a medium portion, a support structure which is disposed downstream of the medium portion and includes a first tubular structure having a first hollow formed therein, a cooling structure which is disposed downstream of the support structure and includes a second tubular structure having a second hollow formed therein, and a mouthpiece portion which is disposed downstream of the cooling structure. Here, an upstream end of the second tubular structure may abut a downstream end of the first tubular structure, and an average cross-sectional area of the second hollow may be larger than an average cross-sectional area of the first hollow. The cross-sectional area difference enhances an air flow diffusion effect, thereby eventually improving vapor production of the aerosol-generating article.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: October 1, 2024
    Assignee: KT&G CORPORATION
    Inventors: Jung Kyu Seo, Tae Chul Shin, Hee Tae Jung, Young Rim Han
  • Patent number: 12098232
    Abstract: A neodymium-catalyzed modified conjugated diene-based polymer having excellent affinity with a filler is provided. A method for preparing the same and a rubber composition including the same are also provided. The neodymium-catalyzed modified conjugated diene-based polymer includes a repeating unit derived from a conjugated diene-based monomer; and a functional group derived from a modifier represented by Formula 1 in at least one terminal of a polymer.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 24, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Suk Youn Kang, Ju Ryang Bae, Seo Won Choi, Tae Chul Lee
  • Publication number: 20240263291
    Abstract: One aspect of the present invention provides a plated steel sheet and a manufacturing method therefor, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al-based plated layer provided on at least one surface of the base steel sheet; and an Fe—Al-based inhibition layer provided between the base steel sheet and the Zn—Mg—Al-based plated layer, wherein, on the surface of the Zn—Mg—Al-based plated layer, the total area fraction of an Al single phase and MgZn2 phase is 45-60%, and the area ratio of the MgZn2 phase to the Al single phase is 1.2-3.3.
    Type: Application
    Filed: June 10, 2022
    Publication date: August 8, 2024
    Applicant: POSCO CO., LTD
    Inventors: Sung-Joo Kim, Il-Ryoung Sohn, Tae-Chul Kim, Kwang-Won Kim, Sang-Tae Han, Myung-Soo Kim, Yong-Kyun Cho
  • Patent number: 12054829
    Abstract: Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn2 phase in phase fraction. In the MgZn2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn2 phase.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: August 6, 2024
    Assignees: POSCO, STEEL & CONVERGENCE TECHNOLOGY RESEARCH ASSOCIATION, POSCO COATED & COLOR STEEL CO., LTD.
    Inventors: Sung-Joo Kim, Kyung-Kwan Park, Moon-Hi Hong, Heung-Yun Kim, Tae-Yeul Park, Myung-Soo Kim, Il-Ryoung Sohn, Tae-Chul Kim, Dae-Young Kang
  • Publication number: 20240202592
    Abstract: A method of supporting dynamic splitting execution of a machine learning model in a communication system is provided. The method includes transmitting device information to the service server by using the edge device, determining a splitting execution type of the machine learning model and transmitting splitting execution information including the determined splitting execution type to the edge device by using the service server, based on the device information, and performing an arithmetic operation on the machine learning model by using at least one of the edge device and the service server, based on the determined splitting execution type.
    Type: Application
    Filed: December 4, 2023
    Publication date: June 20, 2024
    Inventor: Tae Chul Hong