Patents by Inventor Hae-Kwon Jeong

Hae-Kwon Jeong 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: 12179245
    Abstract: An apparatus for cooling a steel sheet includes: an apparatus body provided spaced apart from a steel sheet in the conveying path of the steel sheet; and a cooling unit provided in the apparatus body to supply a cooling fluid. The apparatus body includes: a first edge body that faces a first edge portion extending a certain distance from one side end of the steel sheet toward the center of the steel sheet; and a second edge body that faces a second edge portion extending a certain distance from the other side end of the steel sheet toward the center of the steel sheet. The first and second edge bodies may have stepped cross-sections in a direction perpendicular to the conveying direction of the steel sheet.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: December 31, 2024
    Assignee: POSCO CO., LTD
    Inventors: Hae-Kwon Jeong, Jae-Hwa Lee, Won-Suk Choi, Kyo-Ha Joo, Sang-Won Lee
  • Patent number: 11684894
    Abstract: Provided herein are in situ methods for fabricating a mixed-matrix membrane or a mixed-matrix hollow fiber membrane for increasing formation of zeolitic imidazolate framework nanoparticles inside the mixed-matrix membrane. Generally, in the method a polyimide polymer coated onto at least one support is hydrolzed with a base and the poly(amic acid)-salt film formed thereby undergoes ion exchange with a metal ion, treatment of the formed poly(amic acid)-metal salt film with an organic linker to produce metal-organic framework nanoparticles in situ, and imidization of the treated poly(amic acid)-metal salt film produces a polyimide/metal-organic framework mixed-matrix membrane or a mixed-matrix hollow fiber membrane module. Also provided is the mixed-matrix membrane and the polymer mixed-matrix hollow fiber membrane module fabricated by the methods and methods for separating a binary gas mixture via the fabricated mixed-matrix membrane.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: June 27, 2023
    Assignee: Texas A&M University
    Inventors: Hae-Kwon Jeong, Mohamad Rezi Abdul Hamid
  • Publication number: 20220323913
    Abstract: Provided herein are one-step methods for fabricating an asymmetric mixed-matrix membrane and the asymmetric mixed matrix membrane so fabricated. In the one step method an asymmetric polymer film is formed from a liquid polymer solution and a ligand precursor simultaneously with the formation of metal-organic framework filler particles therein. Also provided is a method for separating a mixture of gases or of liquids by flowing the mixture through the asymmetric mixed matrix membrane.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 13, 2022
    Applicant: Texas A&M University
    Inventors: Hae-Kwon Jeong, Yinying Hua, Sung-Hwan Park
  • Publication number: 20220008977
    Abstract: An apparatus for cooling a steel sheet includes: an apparatus body provided spaced apart from a steel sheet in the conveying path of the steel sheet; and a cooling unit provided in the apparatus body to supply a cooling fluid. The apparatus body includes: a first edge body that faces a first edge portion extending a certain distance from one side end of the steel sheet toward the center of the steel sheet; and a second edge body that faces a second edge portion extending a certain distance from the other side end of the steel sheet toward the center of the steel sheet. The first and second edge bodies may have stepped cross-sections in a direction perpendicular to the conveying direction of the steel sheet.
    Type: Application
    Filed: June 11, 2019
    Publication date: January 13, 2022
    Inventors: Hae-Kwon JEONG, Jae-Hwa LEE, Won-Suk CHOI, Kyo-Ha JOO, Sang-Won LEE
  • Publication number: 20210053015
    Abstract: Provided herein are in situ methods for fabricating a mixed-matrix membrane or a mixed-matrix hollow fiber membrane for increasing formation of zeolitic imidazolate framework nanoparticles inside the mixed-matrix membrane. Generally, in the method a polyimide polymer coated onto at least one support is hydrolzed with a base and the poly(amic acid)-salt film formed thereby undergoes ion exchange with a metal ion, treatment of the formed poly(amic acid)-metal salt film with an organic linker to produce metal-organic framework nanoparticles in situ, and imidization of the treated poly(amic acid)-metal salt film produces a polyimide/metal-organic framework mixed-matrix membrane or a mixed-matrix hollow fiber membrane module. Also provided is the mixed-matrix membrane and the polymer mixed-matrix hollow fiber membrane module fabricated by the methods and methods for separating a binary gas mixture via the fabricated mixed-matrix membrane.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 25, 2021
    Applicant: Texas A&M University
    Inventors: Hae-Kwon Jeong, Mohamad Rezi Abdul Hamid
  • Patent number: 10639593
    Abstract: A method produces a metal-organic framework on a surface of another metal-organic framework. One embodiment comprises contacting the first metal-organic framework with a ligand and solvent solution; wherein the first metal-organic framework comprises a first ligand and a first metal; wherein the ligand and solvent solution comprises a second ligand that is different from the first ligand in the first metal-organic framework; and allowing the second ligand from the ligand and solvent solution to exchange with the first ligand present in the first metal-organic framework for a period of time suitable to produce the second metal-organic framework on the surface of the first metal-organic framework.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: May 5, 2020
    Assignee: The Texas A&M University System
    Inventors: Hae-Kwon Jeong, Hyuk Taek Kwon
  • Patent number: 10391558
    Abstract: The present invention provides a power manufacturing apparatus capable of preventing particle growth when fine powder is formed through a fluid, the apparatus comprising: a molten steel providing part for providing molten steel; and a cooling fluid spraying part which is arranged at a lower part of the molten steel providing part and sprays a cooling fluid on the molten steel in order to pulverize the molten steel provided by the molten steel providing part, wherein the cooling fluid spraying part forms a first flow for cooling the molten steel so as to pulverize the molten steel and a second flow for forming a descending air current in the molten steel.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: August 27, 2019
    Assignee: POSCO
    Inventors: Tae-Jong Ha, Si-Won Yoon, Hae-Kwon Jeong
  • Publication number: 20180001275
    Abstract: A method produces a metal-organic framework on a surface of another metal-organic framework. One embodiment comprises contacting the first metal-organic framework with a ligand and solvent solution; wherein the first metal-organic framework comprises a first ligand and a first metal; wherein the ligand and solvent solution comprises a second ligand that is different from the first ligand in the first metal-organic framework; and allowing the second ligand from the ligand and solvent solution to exchange with the first ligand present in the first metal-organic framework for a period of time suitable to produce the second metal-organic framework on the surface of the first metal-organic framework.
    Type: Application
    Filed: September 14, 2017
    Publication date: January 4, 2018
    Applicant: The Texas A&M University System
    Inventors: Hae-Kwon Jeong, Hyuk Taek Kwon
  • Patent number: 9789444
    Abstract: A method produces a metal-organic framework on a surface of another metal-organic framework. One embodiment comprises contacting the first metal-organic framework with a ligand and solvent solution; wherein the first metal-organic framework comprises a first ligand and a first metal; wherein the ligand and solvent solution comprises a second ligand that is different from the first ligand in the first metal-organic framework; and allowing the second ligand from the ligand and solvent solution to exchange with the first ligand present in the first metal-organic framework for a period of time suitable to produce the second metal-organic framework on the surface of the first metal-organic framework.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: October 17, 2017
    Assignee: The Texas A&M University System
    Inventors: Hae-Kwon Jeong, Hyuk Taek Kwon
  • Publication number: 20160279712
    Abstract: The present invention provides a power manufacturing apparatus capable of preventing particle growth when fine powder is formed through a fluid, the apparatus comprising: a molten steel providing part for providing molten steel; and a cooling fluid spraying part which is arranged at a lower part of the molten steel providing part and sprays a cooling fluid on the molten steel in order to pulverize the molten steel provided by the molten steel providing part, wherein the cooling fluid spraying part forms a first flow for cooling the molten steel so as to pulverize the molten steel and a second flow for forming a descending air current in the molten steel.
    Type: Application
    Filed: December 24, 2013
    Publication date: September 29, 2016
    Applicants: POSCO, POSCO
    Inventors: Tae-Jong HA, Si-Won YOON, Hae-Kwon JEONG
  • Publication number: 20150251139
    Abstract: A method produces a metal-organic framework on a surface of another metal-organic framework. One embodiment comprises contacting the first metal-organic framework with a ligand and solvent solution; wherein the first metal-organic framework comprises a first ligand and a first metal; wherein the ligand and solvent solution comprises a second ligand that is different from the first ligand in the first metal-organic framework; and allowing the second ligand from the ligand and solvent solution to exchange with the first ligand present in the first metal-organic framework for a period of time suitable to produce the second metal-organic framework on the surface of the first metal-organic framework.
    Type: Application
    Filed: March 3, 2015
    Publication date: September 10, 2015
    Applicant: THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Hae-Kwon Jeong, Hyuk Taek Kwon
  • Publication number: 20150246318
    Abstract: A method produces metal-organic framework. In one embodiment a method for producing a metal-organic framework comprises contacting a porous support with a solution comprising a metal and a solvent, contacting a porous support with a solution comprising a ligand and a second solvent, and heating the support for a period of time suitable to substantially evaporate the solution and produce crystals on the surface and the pores.
    Type: Application
    Filed: October 22, 2013
    Publication date: September 3, 2015
    Applicant: The Texas A&M University System
    Inventors: Hae-Kwon Jeong, Miral N Shah, Hyuk Taek Kwon
  • Patent number: 9120680
    Abstract: A thermal processing method for polycrystalline porous films is disclosed. The method and the resulting firms including zeolite films are claimed.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: September 1, 2015
    Inventors: Michael Tsapatsis, Hae-Kwon Jeong, Jungkyu Choi
  • Publication number: 20120148828
    Abstract: A thermal processing method for polycrystalline porous films is disclosed. The method and the resulting firms including zeolite films are claimed.
    Type: Application
    Filed: April 30, 2010
    Publication date: June 14, 2012
    Inventors: Michael Tsapatsis, Hae-Kwon Jeong, Jungkyu Choi
  • Patent number: 7087288
    Abstract: Layered silicate materials and applications are disclosed. In one aspect, the invention features layered silicate materials having pores that run generally perpendicular to the layers. In another aspect, the invention features composite materials including layered framework materials (e.g., layered silicate materials, layered Aluminophosphate materials, layered tin sulfides) having pores or openings that run generally perpendicular to the layers.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: August 8, 2006
    Assignee: University of Massachusetts
    Inventors: Michael Tsapatsis, Hae-Kwon Jeong, Sankar Nair
  • Patent number: 6863983
    Abstract: Layered silicate materials and applications are disclosed. In one aspect, the invention features layered silicate materials having pores that run generally perpendicular to the layers. In another aspect, the invention features composite materials including layered framework materials (e.g., layered silicate materials, layered Aluminophosphate materials, layered tin sulfides) having pores or openings that run generally perpendicular to the layers.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: March 8, 2005
    Assignee: University of Massachusetts
    Inventors: Michael Tsapatsis, Hae-Kwon Jeong, Sankar Nair
  • Publication number: 20050037209
    Abstract: Layered silicate materials and applications are disclosed. In one aspect, the invention features layered silicate materials having pores that run generally perpendicular to the layers. In another aspect, the invention features composite materials including layered framework materials (e.g., layered silicate materials, layered Aluminophosphate materials, layered tin sulfides) having pores or openings that run generally perpendicular to the layers.
    Type: Application
    Filed: October 19, 2004
    Publication date: February 17, 2005
    Inventors: Michael Tsapatsis, Hae-Kwon Jeong, Sankar Nair
  • Publication number: 20040062909
    Abstract: Layered silicate materials and applications are disclosed. In one aspect, the invention features layered silicate materials having pores that run generally perpendicular to the layers. In another aspect, the invention features composite materials including layered framework materials (e.g., layered silicate materials, layered Aluminophosphate materials, layered tin sulfides) having pores or openings that run generally perpendicular to the layers.
    Type: Application
    Filed: January 31, 2003
    Publication date: April 1, 2004
    Inventors: Michael Tsapatsis, Hae-Kwon Jeong, Sankar Nair