Patents by Inventor Gyeongryeol PARK

Gyeongryeol PARK 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).

  • LAMINATED IRON CORE AND MANUFACTURING METHOD THEREOF
    Publication number: 20240051264
    Abstract: The present disclosure relates to a method for manufacturing an electrical steel sheet laminate, the method comprising the steps of: preparing an electrical steel sheet strip including an adhesive layer; coating the strip with a fusion accelerator including a silane coupling agent, a curing agent, and a solvent; fabricating metal parts from the strip; and laminating the metal parts and attaching same to each other by compression.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 15, 2024
    Applicant: POSCO Co., Ltd
    Inventors: Jungwoo KIM, Bongwoo HA, Donggyu LEE, Taeyoung NO, Gyeongryeol PARK
  • ELECTRICAL STEEL SHEET LAMINATE
    Publication number: 20240051269
    Abstract: The present invention relates to an electrical steel sheet laminate, and provided is an electrical steel sheet laminate comprising: a plurality of electrical steel sheets; and polymer adhesive layers positioned between the electrical steel sheets, wherein the coating thickness of the polymer adhesive layers is 1.8-5.4 ?m, the space factor of the laminate is 95.8-98.5%, and the following mathematical formula 1 is satisfied. [Mathematical Formula 1] 172.4?space factor (%)×thickness (?m)?531. 172.
    Type: Application
    Filed: December 20, 2021
    Publication date: February 15, 2024
    Applicant: POSCO Co., Ltd
    Inventors: Jungwoo Kim, Bongwoo Ha, Donggyu Lee, Taeyoung No, Gyeongryeol Park
  • ADHESIVE COATING COMPOSITION FOR ELECTRICAL STEEL SHEET, ELECTRICAL STEEL SHEET LAMINATE, AND METHOD FOR MANUFACTURING SAME
    Publication number: 20240043723
    Abstract: The present disclosure relates to a bonding composition for an electrical steel sheet, and a steel sheet and a laminate employing same, wherein the bonding composition for an electrical steel sheet may comprise an adhesive resin and a bonding additive, the adhesive resin may be polyurethane, and the bonding additive may comprise a coupling agent including an amino silane.
    Type: Application
    Filed: December 16, 2021
    Publication date: February 8, 2024
    Applicant: POSCO Co., Ltd
    Inventors: Bongwoo HA, Jungwoo KIM, Donggyu LEE, Eunjung KO, Taeyoung NO, Gyeongryeol PARK
  • ADHESIVE COATING COMPOSITION FOR ELECTRICAL STEEL SHEET, ELECTRICAL STEEL SHEET LAMINATE, AND METHOD FOR MANUFACTURING SAME
    Publication number: 20230091564
    Abstract: An adhesive coating composition according to an embodiment of the present invention comprises polyethylene acrylate including a repeating unit represented by chemical formula 1 below and a repeating unit represented by chemical formula 2 below, wherein the polyethylene acrylate includes 65-90 wt % of the repeating unit represented by chemical formula 1 below and 10-35 wt % of the repeating unit represented by chemical formula 2 below.
    Type: Application
    Filed: December 17, 2020
    Publication date: March 23, 2023
    Applicant: POSCO
    Inventors: Bongwoo HA, Jung-Woo KIM, Dong-Gyu LEE, Taeyoung NO, Gyeongryeol PARK
  • ELECTRICAL STEEL SHEET ADHESIVE COATING COMPOSITION, ELECTRICAL STEEL SHEET LAMINATE, AND METHOD FOR MANUFACTURING SAME
    Publication number: 20230042607
    Abstract: An adhesive coating composition according to one embodiment of the present invention comprises 100 parts by weight of polyethylene acrylate including a repeating unit represented by a following formula (1) and a repeating unit represented by a following formula (2), and 3 to 25 parts by weight of inorganic particles, wherein the polyethylene acrylate contains 75 to 95% by weight of the repeating unit represented by the following formula (1), and 5 to 25% by weight of the repeating unit represented by the following formula (2).
    Type: Application
    Filed: December 17, 2020
    Publication date: February 9, 2023
    Applicant: POSCO
    Inventors: Bongwoo HA, Jung-Woo KIM, Dong-Gyu LEE, Taeyoung NO, Gyeongryeol PARK