Patents by Inventor Youn Jo KO

Youn Jo KO 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: 10224303
    Abstract: An anisotropic conductive film composition, an anisotropic conductive film prepared using the same, and a connection structure using the same, the anisotropic conductive film including a binder resin; a curable alicyclic epoxy compound; a curable oxetane compound; a quaternary ammonium catalyst; and conductive particles, wherein the anisotropic conductive film has a heat quantity variation rate of about 15% or less, as measured by differential scanning calorimetry (DSC) and calculated by Equation 1: Heat quantity variation rate (%)=[(H0?H1)/H0]×100??Equation 1 wherein H0 is a DSC heat quantity of the anisotropic conductive film, as measured at 25° C. and a time point of 0 hr, and H1 is a DSC heat quantity of the anisotropic conductive film, as measured after being left at 40° C. for 24 hours.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: March 5, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Youn Jo Ko, Soon Young Kwon, Ji Yeon Kim, Ha Na Kim, Young Woo Park, Hyun Joo Seo, Gun Young Heo, Ja Young Hwang
  • Patent number: 10141084
    Abstract: An anisotropic conductive film, the anisotropic conductive film including an insulating layer and a conductive layer laminated on the insulating layer, the conductive layer containing conductive particles, wherein after glass substrates are positioned to face each other on the upper and lower surface of the anisotropic conductive film and are pressed against the anisotropic conductive film at 3 MPa (based on the sample area) and 160° C. (based on the detection temperature of the anisotropic conductive film) for 5 sec, a ratio of the area of the insulating layer to that of the conductive layer is from about 1.3:1 to about 3.0:1.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 27, 2018
    Assignee: Cheil Industries, Inc.
    Inventors: Kyoung Soo Park, Woo Suk Lee, Woo Jun Lim, Kyung Jin Lee, Bong Yong Kim, Jin Seong Park, Dong Seon Uh, Youn Jo Ko, Jang Hyun Cho, Sang Sik Bae, Jin Kyu Kim
  • Patent number: 10090075
    Abstract: A display device connected by an anisotropic conductive film, wherein the anisotropic conductive film includes conductive particles and has a minimum melt viscosity of 900 Pa·s to 90,000 Pa·s at 80° C. to 140° C.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 2, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Youn Jo Ko, Kyoung Ku Kang, Soon Young Kwon, Ie Ju Kim, Hyun Joo Seo, Se Mi Heo
  • Publication number: 20170162531
    Abstract: An anisotropic conductive film composition, an anisotropic conductive film prepared using the same, and a connection structure using the same, the anisotropic conductive film including a binder resin; a curable alicyclic epoxy compound; a curable oxetane compound; a quaternary ammonium catalyst; and conductive particles, wherein the anisotropic conductive film has a heat quantity variation rate of about 15% or less, as measured by differential scanning calorimetry (DSC) and calculated by Equation 1: Heat quantity variation rate (%)=[(H0?H1)/H0]×100??Equation 1 wherein H0 is a DSC heat quantity of the anisotropic conductive film, as measured at 25° C. and a time point of 0 hr, and H1 is a DSC heat quantity of the anisotropic conductive film, as measured after being left at 40° C. for 24 hours.
    Type: Application
    Filed: December 6, 2016
    Publication date: June 8, 2017
    Inventors: Youn Jo KO, Soon Young KWON, Ji Yeon KIM, Ha Na KIM, Young Woo PARK, Hyun Joo SEO, Gun Young HEO, Ja Young HWANG
  • Patent number: 9384869
    Abstract: An anisotropic conductive film includes a binder part, a curing part, an initiator, and conductive particles, wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, wherein the anisotropic conductive film has an electrical conductivity of more than 0 ?S/cm to about 100 ?S/cm.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: July 5, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Youn Jo Ko, Dong Seon Uh, Jang Hyun Cho, Jin Seong Park, Sang Sik Bae, Jin Kyu Kim
  • Publication number: 20160148716
    Abstract: A display device connected by an anisotropic conductive film, wherein the anisotropic conductive film includes conductive particles and has a minimum melt viscosity of 900 Pa·s to 90,000 Pa·s at 80° C. to 140° C.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 26, 2016
    Inventors: Youn Jo KO, Kyoung Ku KANG, Soon Young KWON, Ie Ju KIM, Hyun Joo SEO, Se Mi HEO
  • Patent number: 9281097
    Abstract: An anisotropic conductive film includes a binder part, a curing part, an initiator, and conductive particles, wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, the anisotropic conductive film has a halogen ion content of more than 0 ppm to about 100 ppm.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: March 8, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Youn Jo Ko, Dong Seon Uh, Jang Hyun Cho, Jin Seong Park, Sang Sik Bae, Jin Kyu Kim
  • Patent number: 9177935
    Abstract: A semiconductor device connected by an anisotropic conductive film, the anisotropic conductive film including a binder resin; a first radical polymerization material having one or two (meth)acrylate reactive groups in a structure thereof and a second radical polymerization material having at least three (meth)acrylate reactive groups in a structure thereof; and conductive particles, the anisotropic conductive film having a moisture permeability of 170 g/m2/24 hr or less and a moisture absorbency of 2% or less.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: November 3, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Youn Jo Ko, Hye Su Ki, Ie Ju Kim
  • Patent number: 8896117
    Abstract: A semiconductor device bonded by an anisotropic conductive film, the anisotropic conductive film including a conductive adhesive layer and an insulating adhesive layer stacked thereon, an amount of reactive monomers in the conductive adhesive layer being higher than an amount of reactive monomers in the insulating adhesive layer.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: November 25, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Youn Jo Ko, Jin Kyu Kim, Dong Seon Uh, Kil Yong Lee, Jang Hyun Cho
  • Publication number: 20140210084
    Abstract: A semiconductor device connected by an anisotropic conductive film, the anisotropic conductive film including a binder resin; a first radical polymerization material having one or two (meth)acrylate reactive groups in a structure thereof and a second radical polymerization material having at least three (meth)acrylate reactive groups in a structure thereof; and conductive particles, the anisotropic conductive film having a moisture permeability of 170 g/m2/24 hr or less and a moisture absorbency of 2% or less.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 31, 2014
    Inventors: Youn Jo KO, Hye Su KI, Ie Ju KIM
  • Publication number: 20140042374
    Abstract: An anisotropic conductive film includes a binder part, a curing part, an initiator, and conductive particles, wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, the anisotropic conductive film has a halogen ion content of more than 0 ppm to about 100 ppm.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 13, 2014
    Inventors: Youn Jo KO, Dong Seon UH, Jang Hyun CHO, Jin Seong PARK, Sang Sik BAE, Jin Kyu KIM
  • Publication number: 20140034882
    Abstract: An anisotropic conductive film includes a binder part, a curing part, an initiator, and conductive particles, wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, wherein the anisotropic conductive film has an electrical conductivity of more than 0 ?S/cm to about 100 ?S/cm.
    Type: Application
    Filed: October 10, 2013
    Publication date: February 6, 2014
    Inventors: Youn Jo KO, Dong Seon UH, Jang Hyun CHO, Jin Seong PARK, Sang Sik BAE, Jin Kyu KIM
  • Patent number: 8608985
    Abstract: An anisotropic conductive film includes a binder part, a curing part, an initiator, and conductive particles, wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, the binder part having an ion content of more than 0 ppm to about 100 ppm.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 17, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Youn Jo Ko, Dong Seon Uh, Jang Hyun Cho, Jin Seong Park, Sang Sik Bae, Jin Kyu Kim
  • Publication number: 20130213691
    Abstract: An anisotropic conductive film, the anisotropic conductive film including an insulating layer and a conductive layer laminated on the insulating layer, the conductive layer containing conductive particles, wherein after glass substrates are positioned to face each other on the upper and lower surface of the anisotropic conductive film and are pressed against the anisotropic conductive film at 3 MPa (based on the sample area) and 160° C. (based on the detection temperature of the anisotropic conductive film) for 5 sec, a ratio of the area of the insulating layer to that of the conductive layer is from about 1.3:1 to about 3.0:1.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 22, 2013
    Inventors: Kyoung Soo PARK, Woo Suk LEE, Woo Jun LIM, Kyung Jin LEE, Bong Yong KIM, Jin Seong PARK, Dong Seon UH, Youn Jo KO, Jang Hyun CHO, Sang Sik BAE, Jin Kyu KIM
  • Publication number: 20130127038
    Abstract: A semiconductor device bonded by an anisotropic conductive film, the anisotropic conductive film including a conductive adhesive layer and an insulating adhesive layer stacked thereon, an amount of reactive monomers in the conductive adhesive layer being higher than an amount of reactive monomers in the insulating adhesive layer.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 23, 2013
    Inventors: Youn Jo KO, Jin Kyu KIM, Dong Seon UH, Kil Yong LEE, Jang Hyun CHO
  • Publication number: 20120168683
    Abstract: An anisotropic conductive film includes a binder part, a curing part, an initiator, and conductive particles, wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, the binder part having an ion content of more than 0 ppm to about 100 ppm.
    Type: Application
    Filed: September 23, 2011
    Publication date: July 5, 2012
    Inventors: Youn Jo KO, Dong Seon UH, Jaug Hyun CHO, Jin Seong PARK, Sang Sik BAE, Jin Kyu KIM