Patents by Inventor Seung Keon WOO

Seung Keon WOO 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: 11970566
    Abstract: Disclosed is a method of manufacturing a polyurethane filter foam having excellent air permeability, elasticity, and restoring force. In the method of manufacturing the polyurethane filter foam, the cell size of the filter foam is made regular by controlling the pressure by adjusting the diameter of the foaming head of a foaming machine, rather than adding a cell opener, cell irregularity caused by poor dispersion of the cell opener is alleviated, and air permeability, porosity, and compression set are excellent.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: April 30, 2024
    Assignees: HYUNDAI TRANSYS INC., CHIN YANG CO., LTD.
    Inventors: Jae Yong Ko, Seung Keon Woo, Young Tae Cho, Won Sug Choi, Sung Yoon Lee, Jae Kwang Lee, Jun Ho Song
  • Publication number: 20240084174
    Abstract: Disclosed is an environment-friendly hot-melt composition for a vehicle interior material, the hot-melt composition including: 65 wt % to 85 wt % of an aromatic polyamide; 10 wt % to 30 wt % of an aliphatic polyamide; 1 wt % to 5 wt % of an olefinic elastomer graft-polymerized with maleic anhydride; and 0.1 wt % to 2 wt % of an antioxidant.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 14, 2024
    Applicants: Hyundai Motor Company, KIA CORPORATION
    Inventors: Jin Uk Hwang, Seung Keon Woo, Jae Hong Woo
  • Patent number: 11851591
    Abstract: Disclosed is an environment-friendly hot-melt composition for a vehicle interior material, the hot-melt composition including: 65 wt % to 85 wt % of an aromatic polyamide; 10 wt % to 30 wt % of an aliphatic polyamide; 1 wt % to 5 wt % of an olefinic elastomer graft-polymerized with maleic anhydride; and 0.1 wt % to 2 wt % of an antioxidant.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: December 26, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, Mujin Co., Ltd.
    Inventors: Jin Uk Hwang, Seung Keon Woo, Jae Hong Woo
  • Publication number: 20230220245
    Abstract: Disclosed are a hot melt tape for hook-and-loop fasteners without sewing which may be adhered at a low temperature and complete hardening of an adhesive resin in a short time and a method for manufacturing a seat padding material for vehicles using the same. The method includes preparing the padding material and a hook-and-loop fabric, preparing a hot melt tape having a hot melt resin layer by coating a surface of a release paper with a reactive hot melt resin having a melting point of 40-80° C. before reacting, adhering the hot melt tape to a surface of the padding material by applying heat of a temperature of 30-70° C. and pressure thereto, removing the release paper, adhering the hook-and-loop fabric to the exposed hot melt resin layer, and hardening the hot melt resin layer by cooling the padding material and the hook-and-loop fabric to a temperature of 0-20° C.
    Type: Application
    Filed: March 20, 2023
    Publication date: July 13, 2023
    Inventors: Hye Rin CHOI, Jun Ho SONG, Jae Hong WOO, Seung Keon WOO
  • Publication number: 20230106042
    Abstract: Disclosed is a method of manufacturing a polyurethane filter foam having excellent air permeability, elasticity, and restoring force. In the method of manufacturing the polyurethane filter foam, the cell size of the filter foam is made regular by controlling the pressure by adjusting the diameter of the foaming head of a foaming machine, rather than adding a cell opener, cell irregularity caused by poor dispersion of the cell opener is alleviated, and air permeability, porosity, and compression set are excellent.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 6, 2023
    Inventors: Jae Yong KO, Seung Keon WOO, Young Tae CHO, Won Sug CHOI, Sung Yoon LEE, Jae Kwang LEE, Jun Ho SONG
  • Publication number: 20220195254
    Abstract: Disclosed is an environment-friendly hot-melt composition for a vehicle interior material, the hot-melt composition including: 65 wt % to 85 wt % of an aromatic polyamide; 10 wt % to 30 wt % of an aliphatic polyamide; 1 wt % to 5 wt % of an olefinic elastomer graft-polymerized with maleic anhydride; and 0.1 wt % to 2 wt % of an antioxidant.
    Type: Application
    Filed: August 18, 2021
    Publication date: June 23, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, MUJIN CO.,LTD
    Inventors: Jin Uk HWANG, Seung Keon WOO, Jae Hong WOO
  • Publication number: 20220153366
    Abstract: The present invention provides a jig apparatus for manufacturing vehicle seats. The jig apparatus includes a main frame located in an outermost area of the jig apparatus, leg units respectively located on upper and lower surfaces of the main frame, each of the leg units including two or more leg parts provided adjacent to each other such that one end of each of the two or more leg parts is moved along the main frame and a remaining end of each of the two or more leg parts extends towards an inside of the main frame, and jig units configured to fix a target object located inside the main frame, and located at the remaining ends of the two or more leg parts provided adjacent to each other so as to vary a distance between the remaining ends of the two or more leg parts.
    Type: Application
    Filed: November 8, 2021
    Publication date: May 19, 2022
    Inventors: Jae Yong Ko, Seung Keon Woo
  • Publication number: 20210155828
    Abstract: Disclosed are a hot melt tape for hook-and-loop fasteners without sewing which may be adhered at a low temperature and complete hardening of an adhesive resin in a short time and a method for manufacturing a seat padding material for vehicles using the same. The method includes preparing the padding material and a hook-and-loop fabric, preparing a hot melt tape having a hot melt resin layer by coating a surface of a release paper with a reactive hot melt resin having a melting point of 40-80° C. before reacting, adhering the hot melt tape to a surface of the padding material by applying heat of a temperature of 30-70° C. and pressure thereto, removing the release paper, adhering the hook-and-loop fabric to the exposed hot melt resin layer, and hardening the hot melt resin layer by cooling the padding material and the hook-and-loop fabric to a temperature of 0-20° C.
    Type: Application
    Filed: November 18, 2020
    Publication date: May 27, 2021
    Inventors: Hye Rin CHOI, Jun Ho SONG, Jae Hong WOO, Seung Keon WOO