Patents by Inventor Ji Sun Im

Ji Sun Im 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: 11174340
    Abstract: Provided are a window film composition, a flexible window film formed therefrom and a flexible display device containing the same, the composition comprising: a crosslinking agent represented by RX-X—Z—Y-RY (RX and RY each independently represent a glycidyl group, a glycidyl group-containing functional group, an alicyclic epoxy group or an alicyclic epoxy group-containing functional group); an epoxy group-containing siloxane resin; and an initiator.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: November 16, 2021
    Assignee: SOLIP TECH CO., LTD.
    Inventors: Seung Woo Jang, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Dong Il Han
  • Patent number: 10844286
    Abstract: The present invention relates to a method for producing an impregnated pitch from a petroleum-based raw material and to an impregnated pitch produced using the same, and when the method for producing an impregnated pitch according to the present invention is used, it is possible to produce an impregnated pitch having a high carbonization yield (40 wt % or more) and low quinoline insoluble matter (QI, 2% or less) for improving efficiency of an impregnation process from a petroleum-based raw material. Therefore, when an impregnation process is applied to a carbon compact by using the impregnated pitch according to the present invention, it is possible to remarkably reduce micropores inside the carbon compact, and to produce a carbon compact having physical properties such as excellent electrical conductivity and mechanical strength.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: November 24, 2020
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jong Gu Kim, Young-Pyo Jeon, Ji Sun Im, Byung Jin Song, Byong Chol Bai, Seung Hyun Ko, Jong Eun Choi
  • Patent number: 10711157
    Abstract: Provided are: a composition for a window film, containing a silicone resin comprising chemical formula 1 below, a cross-linking agent, and an initiator; a window film formed therefrom; and a flexible display device comprising the same. (R1SiO3/2)x(SiO3/2-Q-SiO3/2)y(R2SiO3/2)z (In chemical formula 1, R1 and R2 are each independently a cycloaliphatic epoxy group, a cycloaliphatic epoxy group-containing functional group, a glycidyl group, or a glycidyl group-containing functional group; Q is R3 or -A1-T-A2-; R3 is a substituted or unsubstituted C1 to C10 alkylene group, or a substituted or unsubstituted C6 to C30 arylene group; A1 and A2 are each independently a single bond, or a substituted or unsubstituted C1 to C5 alkylene group; T is a mono- or polyalkylene oxide group, or an imide group-containing functional group; and 0<x<1, 0<y<1, 0?z<1, and x+y+z=1.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 14, 2020
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Publication number: 20200123448
    Abstract: The present invention relates to a method for producing an impregnated pitch from a petroleum-based raw material and to an impregnated pitch produced using the same, and when the method for producing an impregnated pitch according to the present invention is used, it is possible to produce an impregnated pitch having a high carbonization yield (40 wt % or more) and low quinoline insoluble matter (QI, 2% or less) for improving efficiency of an impregnation process from a petroleum-based raw material. Therefore, when an impregnation process is applied to a carbon compact by using the impregnated pitch according to the present invention, it is possible to remarkably reduce micropores inside the carbon compact, and to produce a carbon compact having physical properties such as excellent electrical conductivity and mechanical strength.
    Type: Application
    Filed: December 26, 2017
    Publication date: April 23, 2020
    Inventors: Jong Gu Kim, Young-Pyo Jeon, Ji Sun Im, Byung Jin Song, Byong Chol Bai, Seung Hyun Ko, Jong Eun Choi
  • Patent number: 10604652
    Abstract: A composition for a window film including a first silicon resin including a compound represented by Formula 1; a second silicon resin including a crosslinkable functional group and at least one of a Q unit and a bridge unit; a crosslinking agent; and an initiator, a flexible window film formed therefrom, and a flexible display device including the same are disclosed.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: March 31, 2020
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Dong Il Han, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Seung Woo Jang
  • Patent number: 10563092
    Abstract: Provided are: a composition for a window film, containing a siloxane resin including chemical formula 1, a cross-linking agent, and an initiator; a flexible window film formed therefrom; and a flexible display device including the same.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 18, 2020
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Min Hye Kim, Kyoung Ku Kang, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Patent number: 10513631
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising same, the composition for a window film comprising: a first silicone resin comprising chemical formula 1; a second silicone resin containing a crosslinkable functional group and one or more among a Q unit and a bridge unit; a crosslinking agent; and an initiator. (R1SiO3/2)x([R2R3SiO2/2]n)y(R4R5SiO2/2)z(R6R7R8SiO1/2)w (where R1 is a crosslinkable functional group; R2 and R3 are each independently a methyl group; R4 and R5 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, or an unsubstituted or substituted C5-C20 cycloalkyl group; R6, R7, and R8 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C5-C20 cycloalkyl group, or an unsubstituted or substituted C6-C30 aryl group; n is an integer from 7 to 100; 0<x<1, 0.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 24, 2019
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Dong Il Han, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Seung Woo Jang
  • Patent number: 10329385
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising the same, wherein the composition for a window film, contains: (1) a siloxane resin comprising (R1SiO3/2)x(R2SiO3/2)y (wherein, R1 is a cross-linkable functional group, R2 is a UV absorbing functional group or a UV absorbing functional group-containing group, and 0<x<1, 0<y<1, x+y=1) and (2) an initiator.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 25, 2019
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Publication number: 20190023860
    Abstract: Provided are a siloxane resin of chemical formula 1, a composition for a window film, the composition containing a cross-linking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same.
    Type: Application
    Filed: October 7, 2016
    Publication date: January 24, 2019
    Applicants: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Min Hye KIM, Kyoung Ku KANG, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG, Jin Hee CHOI, Dong Il HAN
  • Publication number: 20180371189
    Abstract: Provided are a window film composition, a flexible window film formed therefrom and a flexible display device containing the same, the composition comprising: a crosslinking agent represented by RX—X—Z—Y—RY (RX and RY each independently represent a glycidyl group, a glycidyl group-containing functional group, an alicyclic epoxy group or an alicyclic epoxy group-containing functional group); an epoxy group-containing siloxane resin; and an initiator.
    Type: Application
    Filed: July 22, 2016
    Publication date: December 27, 2018
    Applicants: SAMSUNG SDI CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Woo JANG, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Dong Il HAN
  • Publication number: 20180355175
    Abstract: Provided is a composition for window films comprising a siloxane resin of formula 1, a crosslinking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same. (R1SiO3/2)x(R2SiO3/2)y(R3R4SiO2/2)z(SiO4/2)w (in formula 1, R1 is a functional group containing an alicyclic epoxy group, R2 is a functional group containing a glycidyl group, R3 and R4 are each independently a hydrogen, a functional group containing an alicyclic epoxy group, a functional group containing a glycidyl group, an optionally substituted C1 to C20 alkyl group, an optionally substituted C5 to C20 cycloalkyl group or an optionally substituted C6 to C20 aryl group, wherein 0<x<1, 0<y?0.5, 0?z<1, 0?w<1, and x+y+z+w=1).
    Type: Application
    Filed: September 6, 2016
    Publication date: December 13, 2018
    Inventors: Dong Il HAN, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG
  • Publication number: 20180282484
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising the same, wherein the composition for a window film, contains: (1) a siloxane resin comprising (R1SiO3/2)x(R2SiO3/2)y (wherein, R1 is a cross-linkable functional group, R2 is a UV absorbing functional group or a UV absorbing functional group-containing group, and 0<x<1, 0<y<1, x+y=1) and (2) an initiator.
    Type: Application
    Filed: November 13, 2015
    Publication date: October 4, 2018
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Publication number: 20180244953
    Abstract: Provided are: a composition for a window film, containing a silicone resin comprising chemical formula 1 below, a cross-linking agent, and an initiator; a window film formed therefrom; and a flexible display device comprising the same. (R1SiO3/2)x(SiO3/2-Q-SiO3/2)y(R2SiO3/2)z (In chemical formula 1, R1 and R2 are each independently a cycloaliphatic epoxy group, a cycloaliphatic epoxy group-containing functional group, a glycidyl group, or a glycidyl group-containing functional group; Q is R3 or -A1-T-A2-; R3 is a substituted or unsubstituted C1 to C10 alkylene group, or a substituted or unsubstituted C6 to C30 arylene group; A1 and A2 are each independently a single bond, or a substituted or unsubstituted C1 to C5 alkylene group; T is a mono- or polyalkylene oxide group, or an imide group-containing functional group; and 0<x<1, 0<y<1, 0?z<1, and x+y+z=1.
    Type: Application
    Filed: August 25, 2016
    Publication date: August 30, 2018
    Inventors: Chang Soo WOO, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Ji Sun IM, Seung Woo JANG, Dong Il HAN
  • Publication number: 20180215948
    Abstract: Provided are: a composition for a window film, containing a siloxane resin including chemical formula 1, a cross-linking agent, and an initiator; a flexible window film formed therefrom; and a flexible display device including the same.
    Type: Application
    Filed: July 22, 2016
    Publication date: August 2, 2018
    Inventors: Min Hye KIM, Kyoung Ku KANG, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG, Dong Il HAN
  • Publication number: 20180112105
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising same, the composition for a window film comprising: a first silicone resin comprising chemical formula 1; a second silicone resin containing a crosslinkable functional group and one or more among a Q unit and a bridge unit; a crosslinking agent; and an initiator. (R1SiO3/2)x([R2R3SiO2/2]n)y(R4R5SiO2/2)z(R6R7R8SiO1/2)w (where R1 is a crosslinkable functional group; R2 and R3 are each independently a methyl group; R4 and R5 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, or an unsubstituted or substituted C5-C20 cycloalkyl group; R6, R7, and R8 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C5-C20 cycloalkyl group, or an unsubstituted or substituted C6-C30 aryl group; n is an integer from 7 to 100; 0<x<1, 0.
    Type: Application
    Filed: April 22, 2016
    Publication date: April 26, 2018
    Inventors: Dong Il HAN, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG
  • Patent number: 9914851
    Abstract: A composition for a window film includes a siloxane resin represented by Formula 1, and an initiator. A flexible window film is manufactured using the same, and has a pencil hardness of about 7H or higher, a radius of curvature of about 5.0 mm or lower, and a difference in yellow index before and after irradiation (?Y.I.) of about 5.0 or less. A flexible display includes the flexible window film.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: March 13, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Publication number: 20180030273
    Abstract: A composition for a window film including a first silicon resin including a compound represented by Formula 1; a second silicon resin including a crosslinkable functional group and at least one of a Q unit and a bridge unit; a crosslinking agent; and an initiator, a flexible window film formed therefrom, and a flexible display device including the same are disclosed.
    Type: Application
    Filed: April 22, 2016
    Publication date: February 1, 2018
    Inventors: Dong Il HAN, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG
  • Patent number: 9811192
    Abstract: A composition for a window film includes a siloxane resin represented by Formula 1, 4 or 7, or a mixture thereof, and an initiator. A flexible window film is manufactured using the same, and has a pencil hardness of about 7H or higher, a radius of curvature of about 5.0 mm or less, and a difference in yellow index before and after irradiation (?Y.I.) of about 5.0 or less. A flexible display includes the flexible window film.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Publication number: 20160154436
    Abstract: A composition for a window film includes a siloxane resin represented by Formula 1, 4 or 7, or a mixture thereof, and an initiator. A flexible window film is manufactured using the same, and has a pencil hardness of about 7H or higher, a radius of curvature of about 5.0 mm or less, and a difference in yellow index before and after irradiation (?Y.I.) of about 5.0 or less. A flexible display includes the flexible window film.
    Type: Application
    Filed: November 24, 2015
    Publication date: June 2, 2016
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Publication number: 20160152866
    Abstract: A composition for a window film includes a siloxane resin represented by Formula 1, and an initiator. A flexible window film is manufactured using the same, and has a pencil hardness of about 7H or higher, a radius of curvature of about 5.0 mm or lower, and a difference in yellow index before and after irradiation (?Y.I.) of about 5.0 or less. A flexible display includes the flexible window film.
    Type: Application
    Filed: December 1, 2015
    Publication date: June 2, 2016
    Inventors: Chang Soo WOO, Kyoung Ku KANG, Min Hye KIM, Ji Sun IM, Seung Woo JANG, Dong Il HAN