Patents by Inventor Hye Jung Lee

Hye Jung 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: 20250091879
    Abstract: The present invention relates to: a method for preparing a non-oxidized carbon nanotube dispersion through mechanical impregnation so as to apply carbon nanotubes having a hydrophobic surface and a bundle shape as a high-performance conductive material of a negative electrode or a positive electrode for a secondary battery through solvent dispersion without acid treatment; and a non-oxidized carbon nanotube dispersion for a conductive material of a secondary battery, prepared by the method.
    Type: Application
    Filed: November 5, 2024
    Publication date: March 20, 2025
    Inventors: Seung Yol JEONG, Byeong Guk KIM, Ick Jun KIM, Sun Hye YANG, Geon Woong LEE, Hye Jung LEE, Soo Yeon JEONG, Jung Mo KIM, Ji Hyeon RYU, Hee Jin JEONG
  • Publication number: 20240182310
    Abstract: The present disclosure relates to a reduced graphene oxide for a secondary battery, a method for preparing the same, an electrode using the same, and a secondary battery using the same. Specifically, the reduced graphene oxide is a powdery two-dimensional crystalline reduced graphene oxide satisfying Relational Expressions 1 to 3 shown below. [Relationship 1] 1?TQ?5 [relational expression 2] 100?EQ?1,000 [Relationship 3]1?BETQ?100. In Relational Expression 1, TQ represents the thickness (nm) of the reduced graphene oxide. In Relational Expression 2, EQ represents the electrical conductivity (S/cm) of the reduced graphene oxide. In Relational Expression 3, BETQ represents the specific surface area (m2/g) of the reduced graphene oxide.
    Type: Application
    Filed: November 5, 2021
    Publication date: June 6, 2024
    Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE
    Inventors: Seung Yol JEONG, Sun Hye YANG, Geon Woong LEE, Ick Jun KIM, Byeong Guk KIM, Ji Hyeon RYU, Hye Jung LEE, Soo Yeon JEONG
  • Publication number: 20240019054
    Abstract: The present disclosure relates to a fixing cap assembly and a pipe fitting including same. The fixing cap assembly according to an embodiment of The present disclosure comprises: a fixing cap fastened to a connection portion of a main body, to which at least one pipe is connected, and fixing the main body and the pipe to each other; a washer which is positioned inside the fixing cap and compresses a sealing member (120), interposed between the main body and the pipe, as the fixing cap is fastened, and of which the diameter contracts and is restored in the radial direction; and a coupling member including a plurality of tooth-shaped protrusions which protrude radially from the inner circumferential surface of the washer toward the outer circumferential surface of the pipe and press the outer circumferential surface of the pipe as the washer contracts, thereby fixing the pipe.
    Type: Application
    Filed: March 19, 2021
    Publication date: January 18, 2024
    Applicants: PPI CO., LTD., PPI AMERICA INC.
    Inventors: Jong-Tae LEE, Hye-Jung LEE, Ki-Woong HWANG
  • Patent number: 11873923
    Abstract: A pipe-fitting includes a plurality of pipe receiving portions, a hollow joint for connecting the plurality of pipe receiving portions to each other, a sealing member received in a sealing member-receiving groove, and a plurality of hollow fixing-caps, wherein each fixing-cap is screwed to a distal end of each pipe receiving portion to press the sealing member to be brought into close contact with each pipe. A fixing-cap stopper is formed on an outer circumferential face of each pipe receiving portion. The fixing-cap stopper includes a fixing-cap fixing portion including a plurality of fixing protrusions protruding toward a proximal end of the fixing-cap. A plurality of fixing-protrusion-receiving grooves is defined in the proximal end of each fixing-cap for receiving the fixing-protrusions therein respectively.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 16, 2024
    Assignees: PPI PYUNGWHA CO., LTD, PPI AMERICA INC.
    Inventors: Hye-Jung Lee, Jong-Tae Lee, Ki-Woong Hwang
  • Patent number: 11742473
    Abstract: The present invention relates to a reduced-graphene-oxide/silicon-metal-particle composite, a method of manufacturing the composite and an electrode for a secondary battery including the composite. The method of manufacturing the reduced-graphene-oxide/silicon-metal-particle composite includes preparing a reduced-graphene-oxide dispersion solution by reducing graphene oxide formed through cation-pi interaction, preparing a reduced-graphene-oxide/silicon-metal-particle dispersion solution by mixing the reduced-graphene-oxide dispersion solution with silicon metal particles, and manufacturing a composite powder having a core-shell structure by drying the reduced-graphene-oxide/silicon-metal-particle dispersion solution. Thereby, reduced graphene oxide can be formed using the graphene oxide dispersion solution having few defects and high purity obtained through cation-pi interaction, and dried to afford a composite powder having a core-shell structure, which is applicable to an electrode for a secondary battery.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: August 29, 2023
    Inventors: Seung Yol Jeong, Geon Woong Lee, Jong Hwan Park, Sun Hye Yang, Soo Yeon Jeong, Ick Jun Kim, Seon Hee Seo, Hye Jung Lee, Hee Jin Jeong, Joong Tark Han
  • Patent number: 10900963
    Abstract: The present invention is related to a parallel line biochip for multiplex diagnosis. The parallel line biochip for multiplex diagnosis includes a plurality of line strips disposed in parallel, and a well configured to immobilize the line strips. Since the parallel line biochip for multiplex diagnosis can be used to connect two or more line strips in parallel, the parallel line biochip for multiplex diagnosis has an effect of measuring various materials present in a biological test sample at the same time.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 26, 2021
    Inventors: Kook Jin Lim, Dong Seob Choi, Bum Joon Kim, Mi Jung Kim, Myung Sook Chung, Hye Jung Lee
  • Publication number: 20200370684
    Abstract: A pipe-fitting includes a plurality of pipe receiving portions, a hollow joint for connecting the plurality of pipe receiving portions to each other, a sealing member received in a sealing member-receiving groove, and a plurality of hollow fixing-caps, wherein each fixing-cap is screwed to a distal end of each pipe receiving portion to press the sealing member to be brought into close contact with each pipe. A fixing-cap stopper is formed on an outer circumferential face of each pipe receiving portion. The fixing-cap stopper includes a fixing-cap fixing portion including a plurality of fixing protrusions protruding toward a proximal end of the fixing-cap. A plurality of fixing-protrusion-receiving grooves is defined in the proximal end of each fixing-cap for receiving the fixing-protrusions therein respectively.
    Type: Application
    Filed: September 27, 2019
    Publication date: November 26, 2020
    Inventors: Hye-Jung LEE, Jong-Tae LEE, Ki-Woong HWANG
  • Patent number: 10809263
    Abstract: Provided are an autoantibody specifically binding to an exosomal protein EIF3A (Eukaryotic translation initiation factor 3 subunit A) or a fragment including an antigen-binding site (paratope) thereof, a hybridoma cell line producing the autoantibody, a polypeptide having an amino acid sequence of an antigenic determinant (epitope) specifically binding to the autoantibody, a composition for diagnosing liver cancer including an agent measuring an expression level of the autoantibody or the fragment including the antigen-binding site thereof, a kit for diagnosing liver cancer including the composition, and a method of providing information for diagnosis of liver cancer by using the composition. Further, provided is a method of screening for a therapeutic agent for liver cancer by using an expression level of the autoantibody.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 20, 2020
    Assignees: PROTEOMETECH INC., KOREA RESEARCH INSTITUTE OF BIOSCIENCE AND BIOTECHNOLOGY
    Inventors: Eun Wie Cho, Chang Kyu Heo, Hai Min Hwang, Jeong Heon Ko, Kook Jin Lim, Hye Jung Lee
  • Publication number: 20200295344
    Abstract: The present invention relates to a reduced-graphene-oxide/silicon-metal-particle composite, a method of manufacturing the composite and an electrode for a secondary battery including the composite. The method of manufacturing the reduced-graphene-oxide/silicon-metal-particle composite includes preparing a reduced-graphene-oxide dispersion solution by reducing graphene oxide formed through cation-pi interaction, preparing a reduced-graphene-oxide/silicon-metal-particle dispersion solution by mixing the reduced-graphene-oxide dispersion solution with silicon metal particles, and manufacturing a composite powder having a core-shell structure by drying the reduced-graphene-oxide/silicon-metal-particle dispersion solution. Thereby, reduced graphene oxide can be formed using the graphene oxide dispersion solution having few defects and high purity obtained through cation-pi interaction, and dried to afford a composite powder having a core-shell structure, which is applicable to an electrode for a secondary battery.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Inventors: Seung Yol JEONG, Geon Woong LEE, Jong Hwan PARK, Sun Hye YANG, Soo Yeon JEONG, Ick Jun KIM, Seon Hee SEO, Hye Jung LEE, Hee Jin JEONG, Joong Tark HAN
  • Publication number: 20190204324
    Abstract: Provided are an autoantibody specifically binding to an exosomal protein EIF3A (Eukaryotic translation initiation factor 3 subunit A) or a fragment including an antigen-binding site (paratope) thereof, a hybridoma cell line producing the autoantibody, a polypeptide having an amino acid sequence of an antigenic determinant (epitope) specifically binding to the autoantibody, a composition for diagnosing liver cancer including an agent measuring an expression level of the autoantibody or the fragment including the antigen-binding site thereof, a kit for diagnosing liver cancer including the composition, and a method of providing information for diagnosis of liver cancer by using the composition. Further, provided is a method of screening for a therapeutic agent for liver cancer by using an expression level of the autoantibody.
    Type: Application
    Filed: July 8, 2016
    Publication date: July 4, 2019
    Applicants: Korea Research Institute of Bioscience and Biotechnology, ProteomeTech Inc.
    Inventors: Eun Wie Cho, Chang Kyu Heo, Hai Min Hwang, Jeong Heon Ko, Kook Jin Lim, Hye Jung Lee
  • Patent number: 10319959
    Abstract: A flexible secondary battery includes an electrode assembly, a first external cover that is located on a first surface of the electrode assembly, and a second external cover that is located on a second surface of the electrode assembly, the second external cover and the first external cover including a sealing portion where edges of the first external cover and the second external cover are attached to each other to seal the electrode assembly. At least one of the first external cover and the second external cover includes a stress-relief pattern in a center portion.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: June 11, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ju-Hee Sohn, Naum Feygenson, Jun-Won Suh, Jeong-Doo Yi, Hyun-Hwa Song, Bong-Kyoung Park, Hye-Jung Lee
  • Patent number: 9543621
    Abstract: An electrode assembly includes a structure including a first electrode plate and a second electrode plate that are wound together, and a separator between the first electrode plate and the second electrode plate, a first electrode tab that is electrically connected to the first electrode plate, and a second electrode tab that is electrically connected to the second electrode plate. The structure includes a pair of grooves at opposite sides of the structure, the grooves being formed by compression of the structure at the opposite sides in a direction perpendicular to a winding surface. The structure including a first part and a second part that are oppositely located with respect to a reference line connecting the pair of grooves, and the second part is shifted in a first direction such that the second part is partially misaligned with the first part.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: January 10, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong-Doo Yi, Bong-Kyoung Park, Hye-Jung Lee, Feygenson Naum
  • Patent number: 9478823
    Abstract: A secondary battery includes: a case; and an electrode assembly accommodated in the case and including a positive electrode plate, a negative electrode plate, and a separator between the positive and negative electrode plates. At least one of the positive and negative electrode plates includes: a first sub-electrode plate including a first coating surface coated with an active material and a first non-coating surface facing oppositely away from the first coating surface and not coated with the active material; and a second sub-electrode plate including a second coating surface coated with an active material and a second non-coating surface facing oppositely away from the second coating surface and not coated with the active material. The first non-coating surface of the first sub-electrode plate faces the second non-coating surface of the second sub-electrode plate to allow the first and the second sub-electrode plates to slip relative to each other.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: October 25, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hye-Jung Lee, Bong-Kyoung Park, Feygenson Naum
  • Patent number: D831173
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: October 16, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee
  • Patent number: D831174
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: October 16, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee
  • Patent number: D831797
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: October 23, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee
  • Patent number: D832985
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: November 6, 2018
    Assignee: PPI PYUNGWHA CO., LTD.
    Inventors: Jong-Ho Lee, Hye-Jung Lee, Jong-Tae Lee, Il-Haeng Lee
  • Patent number: D992700
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: July 18, 2023
    Inventors: Jong Ho Lee, Hye Jung Lee
  • Patent number: D992701
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: July 18, 2023
    Inventors: Jong Ho Lee, Hye Jung Lee
  • Patent number: D999884
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: September 26, 2023
    Inventors: Jong Ho Lee, Hye Jung Lee