Patents by Inventor Keon Su PARK

Keon Su 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).

  • Window cover film and flexible display panel including the same
    Patent number: 11970592
    Abstract: The present invention relates to a window cover film and a flexible display panel including the same. More particularly, the present invention relates to a window cover film including a base layer and a hard coating layer, and a flexible display panel including the same. Since the window cover film of the present invention has high surface hardness, flexibility, the excellent bending properties, the window cover film may be restored to the original form without permanent deformation and/or damage of the hard coating layer and the window cover film even though a predetermined deformation is repeated.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: April 30, 2024
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Jong Nam Ahn, Keon Hyeok Ko, Byoung Sun Ko, Hye Jin Kim, Je Seung Park, Jin Su Park, A Ran Hwang
  • Polyimide-based film, film for cover window, and display device including the same
    Patent number: 11945925
    Abstract: Provided are a polyimide-based film having excellent visibility, a film for a cover window, and a display device including the same.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: April 2, 2024
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Jin Su Park, Keon Hyeok Ko, Byoung Sun Ko, Jong Nam Ahn, Tae Sug Jang
  • Sorting method and apparatus for recycling filler included in artificial turf
    Patent number: 10052638
    Abstract: A method of recycling a filler included in artificial turf by sorting the filler into two or more materials, including: a first sorting operation of sorting the two or more materials based on a grain size; and a second sorting operation of sorting the materials, which are sorted by the first sorting operation and have grain sizes belonging to a predetermined range, based on specific gravity.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: August 21, 2018
    Assignees: KOLONGLOTECH, INC, SUNGWON RECYCLE CO., LTD.
    Inventors: Keon Su Park, Young Hoon Kwon, Kwang Su Cho, Kyoung Rok Kong, Ji Young Jang
  • Sorting method and apparatus for recycling filler included in artificial turf
    Patent number: 9789491
    Abstract: A method of recycling a filler included in artificial turf by sorting the filler into two or more materials, including: a first sorting operation of sorting the two or more materials based on a grain size; and a second sorting operation of sorting the materials, which are sorted by the first sorting operation and have grain sizes belonging to a predetermined range, based on specific gravity.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: October 17, 2017
    Assignees: KOLONGLOTECH. INC, SUNGWON RECYCLE CO., LTD.
    Inventors: Keon Su Park, Young Hoon Kwon, Kwang Su Cho, Kyoung Rok Kong, Ji Young Jang
  • SORTING METHOD AND APPARATUS FOR RECYCLING FILLER INCLUDED IN ARTIFICIAL TURF
    Publication number: 20170087560
    Abstract: A method of recycling a filler included in artificial turf by sorting the filler into two or more materials, including: a first sorting operation of sorting the two or more materials based on a grain size; and a second sorting operation of sorting the materials, which are sorted by the first sorting operation and have grain sizes belonging to a predetermined range, based on specific gravity.
    Type: Application
    Filed: December 12, 2016
    Publication date: March 30, 2017
    Inventors: Keon Su PARK, Young Hoon KWON, Kwang Su CHO, Kyoung Rok KONG, Ji Young JANG
  • SORTING METHOD AND APPARATUS FOR RECYCLING FILLER INCLUDED IN ARTIFICIAL TURF
    Publication number: 20160256875
    Abstract: A method of recycling a filler included in artificial turf by sorting the filler into two or more materials, including: a first sorting operation of sorting the two or more materials based on a grain size; and a second sorting operation of sorting the materials, which are sorted by the first sorting operation and have grain sizes belonging to a predetermined range, based on specific gravity.
    Type: Application
    Filed: March 28, 2014
    Publication date: September 8, 2016
    Inventors: Keon Su PARK, Young Hoon KWON, Kwang Su CHO, Kyoung Rok KONG, Ji Young JANG