Patents by Inventor Suk Ku LEE

Suk Ku 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).

  • Patent number: 11586871
    Abstract: The present invention relates to a metal card and a card manufacturing method, and the metal card includes a metal sheet, a machined part made of a plastic material in such a manner as to be inserted into one side surface of the metal sheet, an insulating sheet with a ferromagnetic insulating material in such a manner as to be attached to the underside of the metal sheet, and an inlay sheet with antenna coils in such a manner as to be attached to the underside of the insulating sheet, wherein the metal sheet has a machined part insertion portion formed on one side surface thereof to insert the machined part, and the ferromagnetic insulating material has the shape of one or more pieces or powder.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: February 21, 2023
    Assignees: KONA I CO., LTD., KONA M CO., LTD.
    Inventors: Ki sung Nam, Han seon Kim, Suk Ku Lee
  • Patent number: 11416729
    Abstract: The present invention relates to a metal card manufacturing method including the steps of: preparing a metal sheet having a given size capable of accommodating a plurality of individual cards; forming holes on at least one or more edges of stacked sheets formed by stacking a plurality of sheets inclusive of adhesive sheets and an inlay sheet on which antenna coils are printed, the plurality of sheets having the same size capable of accommodating the plurality of individual cards as each other; fitting the holes formed on the stacked sheets to pins located on a loading plate; placing the metal sheet on top of the stacked sheets; forming a metal card sheet through lamination among the metal sheet and the stacked sheets; and cutting the metal card sheet along individual card outlines of the plurality of individual cards.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: August 16, 2022
    Assignees: Kona I Co., Ltd., Kona M Co., Ltd.
    Inventors: Ki Sung Nam, Han Seon Kim, Suk Ku Lee
  • Publication number: 20210279542
    Abstract: The present invention relates to a metal card manufacturing method including the steps of: preparing a metal sheet having a given size capable of accommodating a plurality of individual cards; forming holes on at least one or more edges of stacked sheets formed by stacking a plurality of sheets inclusive of adhesive sheets and an inlay sheet on which antenna coils are printed, the plurality of sheets having the same size capable of accommodating the plurality of individual cards as each other; fitting the holes formed on the stacked sheets to pins located on a loading plate; placing the metal sheet on top of the stacked sheets; forming a metal card sheet through lamination among the metal sheet and the stacked sheets; and cutting the metal card sheet along individual card outlines of the plurality of individual cards.
    Type: Application
    Filed: June 20, 2018
    Publication date: September 9, 2021
    Inventors: Ki sung NAM, Han seon KIM, Suk Ku LEE
  • Publication number: 20210271950
    Abstract: The present invention relates to a metal card and a card manufacturing method, and the metal card includes a metal sheet, a machined part made of a plastic material in such a manner as to be inserted into one side surface of the metal sheet, an insulating sheet with a ferromagnetic insulating material in such a manner as to be attached to the underside of the metal sheet, and an inlay sheet with antenna coils in such a manner as to be attached to the underside of the insulating sheet, wherein the metal sheet has a machined part insertion portion formed on one side surface thereof to insert the machined part, and the ferromagnetic insulating material has the shape of one or more pieces or powder.
    Type: Application
    Filed: June 19, 2018
    Publication date: September 2, 2021
    Inventors: Ki sung NAM, Han seon KIM, Suk Ku LEE
  • Publication number: 20210170735
    Abstract: The present invention relates to a metal card manufacturing method including the steps of: preparing a metal sheet having a given size capable of accommodating a plurality of individual cards; preparing a ferromagnetic insulating sheet made by containing epoxy in a ferrite to the same size capable of accommodating the plurality of individual cards as the metal sheet; preparing an inlay sheet on which antenna coils are printed to the same size as the insulating sheet and forming holes on at least one or more edges of stacked sheets formed by stacking a plurality of sheets inclusive of the insulating sheet and the inlay sheet; fitting the holes formed on the stacked sheets to pins located on a loading plate; placing the metal sheet on top of the stacked sheets; forming a metal card sheet through lamination among the metal sheet and the stacked sheets; and cutting the metal card sheet along individual card outlines of the plurality of individual cards.
    Type: Application
    Filed: June 20, 2018
    Publication date: June 10, 2021
    Inventors: Ki sung NAM, Han seon KIM, Suk Ku LEE
  • Patent number: 11009855
    Abstract: Provided is a method for manufacturing a metal card which is capable of allowing metal card antennas to have no interference with a metal sheet by including a processed plastic layer formed on the metal sheet, and an insulating sheet. The metal card is capable of improving sensitivity of antenna coil, thereby solving an existing problem of the difficulties in performing RF communication because of material characteristics of a metal layer.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 18, 2021
    Assignees: KONA I CO., LTD., KONA M CO., LTD.
    Inventors: Ki sung Nam, Han seon Kim, Suk Ku Lee
  • Publication number: 20190384261
    Abstract: Provided is a method for manufacturing a metal card which is capable of allowing metal card antennas to have no interference with a metal sheet by including a processed plastic layer formed on the metal sheet, and an insulating sheet. The metal card is capable of improving sensitivity of antenna coil, thereby solving an existing problem of the difficulties in performing RF communication because of material characteristics of a metal layer.
    Type: Application
    Filed: February 7, 2019
    Publication date: December 19, 2019
    Inventors: Ki sung NAM, Han seon KIM, Suk Ku LEE