Patents by Inventor Chi Won YOON

Chi Won YOON 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: 20240157614
    Abstract: Proposed are an apparatus and a method for expanded polypropylene (EPP) molding. The apparatus for EPP molding includes an upper mold, a lower mold forming a cavity, which is a space for manufacturing a molded product, together with the upper mold, a skin holding means provided at the upper mold or the lower mold, an insert holding means provided at one of the upper mold and the lower mold where the skin holding means is not provided, a resin supply means supplying a polypropylene resin to the cavity, a heating means applying heat to the polypropylene resin supplied to the cavity, and a mold driving means moving the upper mold and the lower mold in directions towards or away from each other.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 16, 2024
    Inventors: Chi Won YOON, Hyeok LEE
  • Publication number: 20240051198
    Abstract: Proposed is an apparatus and method for manufacturing automotive interior materials. The apparatus includes a first mold unit with a first molding surface and a gate disposed on the first molding surface, and a second mold unit provided with a second molding surface facing the first molding surface, wherein a skin is set on the first molding surface; and the first mold unit and the second mold unit are configured, when combined, to provide a volume-variable injection space between the set skin and the first molding surface, wherein the volume-variable injection space is in a first volume state while molten resin is injected through the gate, and after completing the injection of the molten resin, the volume-variable injection space changes to a second volume state that a volume of the injection space is reduced compared to the first volume state to compress the molten resin.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 15, 2024
    Inventor: Chi Won YOON
  • Publication number: 20240051200
    Abstract: Proposed is an apparatus and method for manufacturing automotive interior materials. The apparatus includes a first mold unit provided with a first molding surface and a gate disposed on the first molding surface, wherein a skin is set on the first molding surface. The apparatus further includes a second mold unit provided with a second molding surface facing the first molding surface, and configured to provide an opening exposing an edge of an edge portion of the set skin along a periphery between the first molding surface and the second molding surface when the second mold unit is combined with the first mold unit, and a sealing block provided with a tip portion disposed along the opening when the first mold unit and the second mold unit are combined.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 15, 2024
    Inventor: Chi Won YOON
  • Publication number: 20230131654
    Abstract: Proposed are an apparatus and a method for manufacturing an interior material for a vehicle, in which a core and a skin can be integrated by a pressing operation. The apparatus includes a first mold unit having a first molding surface, and a second mold unit having a second molding surface corresponding to the first molding surface. The core is mounted on the second molding surface. The first mold unit includes a first fixing part, and the second mold unit includes a second fixing part. The first fixing part and the second fixing part are configured to fix an outer peripheral portion of a skin placed between the first mold unit and the second mold unit.
    Type: Application
    Filed: October 24, 2022
    Publication date: April 27, 2023
    Inventor: Chi Won YOON
  • Patent number: 11389993
    Abstract: A vehicle interior material manufacturing apparatus includes a preheater for preheating a raw fabric, a mover for moving the preheated raw fabric and including a stretching jig movable back and forth, a first mold into which the preheated raw fabric is inserted by the mover, a second mold having an at least partially corresponding shape to the first mold, and an injection resin introduced into the second mold, wherein the first mold includes: a base member on which an embossed pattern to be transferred to the preheated raw fabric is formed, a vacuum hole through which the preheated raw fabric is adsorbed onto the base member, and a spring core protruding from the base member and contacting at least a portion of the preheated raw fabric inserted into the first mold.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: July 19, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Seoyon E-HWA Co., Ltd.
    Inventors: Hak Soo Kim, Yongho Kim, Hanki Lee, Mungyu Bak, Juseong Park, Seong Kwon Go, Chi Won Yoon
  • Patent number: 11331837
    Abstract: Provided are an apparatus and a method for forming interior material of a vehicle, in which when a resin is injected onto a rear surface of fabric through a fixed mold while a moving mold, onto which the fabric is placed, is pressed against the fixed mold and then a core mold of the moving mold is pulled back by a decompression releasing distance, a capacity increases by as much as the distance such that a pressure and a temperature are reduced so as to minimize damage to the fabric.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: May 17, 2022
    Assignee: SEOYON E-HWA CO., LTD.
    Inventor: Chi Won Yoon
  • Patent number: 11279064
    Abstract: Provided are an apparatus and a method for foam injection molding, in which a problem in quality caused by spreading of a minute releasing distance according to conditions of an injection machine is improved by minutely releasing a first moving mold from a fixed mold using a minute releasing member for foaming and minutely releasing a second moving mold from the first moving mold using a minute releasing member for spreading of the injection machine.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: March 22, 2022
    Assignee: SEOYON E-HWACO., LTD.
    Inventors: Chi Won Yoon, Dong Suk Kim
  • Publication number: 20190322024
    Abstract: Provided are an apparatus and a method for forming interior material of a vehicle, in which when a resin is injected onto a rear surface of fabric through a fixed mold while a moving mold, onto which the fabric is placed, is pressed against the fixed mold and then a core mold of the moving mold is pulled back by a decompression releasing distance, a capacity increases by as much as the distance such that a pressure and a temperature are reduced so as to minimize damage to the fabric.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 24, 2019
    Inventor: Chi Won YOON
  • Publication number: 20190322014
    Abstract: Provided are an apparatus and a method for foam injection molding, in which a problem in quality caused by spreading of a minute releasing distance according to conditions of an injection machine is improved by minutely releasing a first moving mold from a fixed mold using a minute releasing member for foaming and minutely releasing a second moving mold from the first moving mold using a minute releasing member for spreading of the injection machine.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Inventors: Chi Won YOON, Dong Suk KIM
  • Publication number: 20190111592
    Abstract: A vehicle interior material manufacturing apparatus includes a preheater for preheating a raw fabric, a mover for moving the preheated raw fabric and including a stretching jig movable back and forth, a first mold into which the preheated raw fabric is inserted by the mover, a second mold having an at least partially corresponding shape to the first mold, and an injection resin introduced into the second mold, wherein the first mold includes: a base member on which an embossed pattern to be transferred to the preheated raw fabric is formed, a vacuum hole through which the preheated raw fabric is adsorbed onto the base member, and a spring core protruding from the base member and contacting at least a portion of the preheated raw fabric inserted into the first mold.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 18, 2019
    Inventors: Hak Soo KIM, Yongho KIM, Hanki LEE, Mungyu BAK, Juseong PARK, Seong Kwon GO, Chi Won YOON