Patents by Inventor Irina Nam

Irina Nam 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: 20160152877
    Abstract: An adhesive composition for polarizing plates includes a (meth)acrylic copolymer prepared by copolymerization of a monomer mixture and a curing agent. The monomer mixture includes a hydroxyl group-containing (meth)acrylic monomer, a tertiary amine group-containing (meth)acrylic monomer and a monomer having a glass transition temperature (Tg) of about 100° C. or greater. The adhesive composition has a gel fraction of about 50% or greater after aging for 12 hours. An adhesive film is formed from the adhesive composition. An optical display includes the adhesive film.
    Type: Application
    Filed: November 24, 2015
    Publication date: June 2, 2016
    Inventors: Irina Nam, Inga Tuzovskaya, Young Jong Kim, Il Jin Kim, Hwan Sung Cheon
  • Patent number: 9175196
    Abstract: The present invention relates to a photocurable adhesive composition. The photocurable adhesive composition comprises a urethane(meth)acrylate resin, a functional-group-containing polybutadiene, a photocurable monomer and a photoinitiator; and the functional group is either an epoxy group or a hydroxyl group. The photocurable adhesive composition ensures good outdoor readability, has outstanding adhesive properties, and impact strength and optical transparency, and minimizes the phenomenon whereby substantial contraction occurs during photocuring, and thus can be suitably used for a display.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: November 3, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyoung Jin Ha, Ji Hye Kwon, Lee June Kim, Irina Nam, Se Il Oh, Seung Jib Choi
  • Publication number: 20150247070
    Abstract: An adhesive composition for polarizing plates includes a (meth)acrylic copolymer and a biphenyl group-containing photocuring agent. A polarizing plate includes an adhesive layer formed of the adhesive composition An optical display includes the polarizing plate.
    Type: Application
    Filed: February 11, 2015
    Publication date: September 3, 2015
    Inventors: Irina NAM, Woo Jin JEONG, Dong Heon YUN, In Cheon HAN
  • Patent number: 9086526
    Abstract: A photocurable adhesive composition, a module apparatus, and a method of assembling a module, the composition including a urethane (meth)acrylate binder, the composition having a viscosity of about 3,000 to about 6,000 cps at 25° C., and providing an adhesive film having an adhesive strength of about 30 N/cm2 or more.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: July 21, 2015
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyoung Jin Ha, Ji Hye Kwon, Kil Sung Lee, Irina Nam, Lee June Kim
  • Publication number: 20140329927
    Abstract: The present invention relates to a photocurable adhesive composition. The photocurable adhesive composition comprises a urethane(meth)acrylate resin, a functional-group-containing polybutadiene, a photocurable monomer and a photoinitiator; and the functional group is either an epoxy group or a hydroxyl group. The photocurable adhesive composition ensures good outdoor readability, has outstanding adhesive properties, and impact strength and optical transparency, and minimizes the phenomenon whereby substantial contraction occurs during photocuring, and thus can be suitably used for a display.
    Type: Application
    Filed: August 6, 2012
    Publication date: November 6, 2014
    Inventors: Kyoung Jin Ha, Ji Hye Kwon, Lee June Kim, Irina Nam, Se Il Oh, Seung Jib Choi
  • Publication number: 20140296443
    Abstract: An adhesive composition includes an acrylic copolymer having at least one alkyl group, at least one hydroxyl group, and at least one furyl based group; and a curing agent.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Kyoung Jin HA, Irina NAM, Lee Jun KIM, Kil Sung LEE, Eun Hwan JEONG, Woo Jin JEONG
  • Patent number: 8834670
    Abstract: An optical adhesive composition includes a urethane (meth)acrylate resin having at least one hydroxyl group and at least one vinyl group, the urethane (meth)acrylate resin having a curing contraction ratio expressed by Equation 1 of about 0 to about 3%; and an adhesion of about 30 to about 80 kgf: Curing contraction ratio (%)=(A?B)/A×100,??[Equation 1] where A is a specific gravity of the optical adhesive composition before curing, and B is a specific gravity of the solid optical adhesive composition after curing.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: September 16, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Kyoung Jin Ha, Ji Hye Kwon, Kil Sung Lee, Irina Nam, Lee June Kim
  • Publication number: 20140186605
    Abstract: An adhesive film for polarizing plates includes a (meth)acrylic copolymer obtained by polymerizing about 15 wt % to about 30 wt % of a (meth)acrylic monomer having a hetero-alicyclic ring. The adhesive film has a storage modulus (G?) of about 30 kPa or greater as determined from Frequency sweep testing at 85° C. by oscillation at an angular speed of 10?3 rad/s to 102 rad/s. An adhesive composition for the same, a polarizing plate including the same, and an optical display device including the same are also disclosed.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 3, 2014
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Won Kim, Ri Ra Jung, Irina Nam, Ha Yun Cho, In Cheon Han
  • Patent number: 8754172
    Abstract: An adhesive composition includes an acrylic copolymer having at least one alkyl group, at least one hydroxyl group, and at least one furyl based group; and a curing agent.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: June 17, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Kyoung Jin Ha, Irina Nam, Lee Jun Kim, Kil Sung Lee, Eun Hwan Jeong, Woo Jin Jeong
  • Patent number: 8628847
    Abstract: An adhesive binder, an adhesive composition including the same, an optical member, and associated methods, the adhesive binder including a (meth)acrylic copolymer having urethane, hydroxyl, aromatic, and vinyl groups in side chains thereof.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: January 14, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Kyoung Jin Ha, Kil Sung Lee, Mi Sun Kim, Irina Nam, Chang Min Lee
  • Publication number: 20130236681
    Abstract: A photocurable composition includes (A) a photocurable monomer and (B) a silicon-containing monomer or oligomer thereof, the silicon-containing monomer being represented by Formula 1
    Type: Application
    Filed: March 5, 2013
    Publication date: September 12, 2013
    Inventors: Chang Min LEE, Seung Jib CHOI, Ji Hye KWON, Irina NAM, Jin Seong PARK, Yeon Soo LEE, Kyoung Jin HA
  • Patent number: 8420289
    Abstract: An aromatic ring-containing polymer, a polymer mixture, an antireflective hardmask composition, and a method for patterning a material on a substrate, the aromatic ring-containing polymer including at least one aromatic ring-containing polymer represented by Formulae 1, 2, or 3.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: April 16, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Min Soo Kim, Dong Seon Uh, Chang Il Oh, Kyong Ho Yoon, Kyung Hee Hyung, Jin Kuk Lee, Jong-Seob Kim, Hwan Sung Cheon, Irina Nam, Nataliya Tokareva
  • Publication number: 20120172482
    Abstract: An optical adhesive composition includes a urethane(meth)acrylate resin having at least one hydroxyl group and at least one vinyl group, the urethane(meth)acrylate resin having a curing contraction ratio expressed by Equation 1 of about 0 to about 3%; and an adhesion of about 30 to about 80 kgf: Curing contraction ratio (%)=(A?B)/A×100, ??[Equation 1] where A is a specific gravity of the optical adhesive composition before curing, and B is a specific gravity of the solid optical adhesive composition after curing.
    Type: Application
    Filed: October 14, 2011
    Publication date: July 5, 2012
    Inventors: Kyoung Jin HA, Ji Hye KWON, Kil Sung LEE, Irina NAM, Lee June KIM
  • Publication number: 20120172481
    Abstract: A photocurable adhesive composition, a module apparatus, and a method of assembling a module, the composition including a urethane (meth)acrylate binder, the composition having a viscosity of about 3,000 to about 6,000 cps at 25° C., and providing an adhesive film having an adhesive strength of about 30 N/cm2 or more.
    Type: Application
    Filed: December 23, 2011
    Publication date: July 5, 2012
    Inventors: Kyoung Jin HA, Ji Hye Kwon, Kil Sung Lee, Irina Nam, Lee June Kim
  • Publication number: 20120059127
    Abstract: An adhesive composition includes an acrylic copolymer having at least one alkyl group, at least one hydroxyl group, and at least one furyl based group; and a curing agent.
    Type: Application
    Filed: February 15, 2011
    Publication date: March 8, 2012
    Inventors: Kyoung Jin HA, Irina Nam, Lee Jun Kim, Kil Sung Lee, Eun Hwan Jeong, Woo Jin Jeong
  • Publication number: 20110159283
    Abstract: An adhesive binder, an adhesive composition including the same, an optical member, and associated methods, the adhesive binder including a (meth)acrylic copolymer having urethane, hydroxyl, aromatic, and vinyl groups in side chains thereof.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 30, 2011
    Inventors: Kyoung Jin HA, Kil Sung Lee, Mi Sun Kim, Irina Nam, Chang Min Lee
  • Patent number: 7879526
    Abstract: Provided herein are hardmask compositions for resist underlayer films, wherein according to some embodiments of the invention, hardmask compositions include a polymer prepared by the reaction of a compound of Formula 1 with a compound of Formula 2 (R)m—Si—(OCH3)4-m??(2) in the presence of a catalyst, wherein R is a monovalent organic group, n is an integer from 3 to 20, and m is 1 or 2; and an organic solvent. Also provided herein are methods for producing a semiconductor integrated circuit device using a hardmask composition according to an embodiment of the invention. Further provided are semiconductor integrated circuit devices produced by a method embodiment of the invention.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: February 1, 2011
    Assignee: Cheil Industries, Inc.
    Inventors: Dong Seon Uh, Chang Il Oh, Do Hyeon Kim, Hui Chan Yun, Jin Kuk Lee, Irina Nam, Jong Seob Kim
  • Publication number: 20100320573
    Abstract: Provided herein, according to some embodiments of the invention, are organosilane polymers prepared by reacting organosilane compounds including (a) at least one compound of Formula I Si(OR1)(OR2)(OR3)R4??(I) wherein R1, R2 and R3 may each independently be an alkyl group, and R4 may be —(CH2)nR5, wherein R5 may be an aryl or a substituted aryl, and n may be 0 or a positive integer; and (b) at least one compound of Formula II Si(OR6)(OR7)(OR8)R9??(II) wherein R6, R7 and R8 may each independently an alkyl group or an aryl group; and R9 may be an alkyl group. Also provided are hardmask compositions including an organosilane compound according to an embodiment of the invention, or a hydrolysis product thereof. Methods of producing semiconductor devices using a hardmask compostion according to an embodiment of the invention, and semiconductor devices produced therefrom, are also provided.
    Type: Application
    Filed: August 25, 2010
    Publication date: December 23, 2010
    Inventors: Dong Seon Uh, Hui Chan Yun, Jin Kuk Lee, Chang Il Oh, Jong Seob Kim, Sang Kyun Kim, Sang Hak Lim, Min Soo Kim, Kyong Ho Yoon, Irina Nam
  • Patent number: 7829638
    Abstract: Hardmask compositions having antireflective properties useful in lithographic processes, methods of using the same, and semiconductor devices fabricated by such methods, are provided.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: November 9, 2010
    Assignee: Cheil Industries, Inc.
    Inventors: Dong Seon Uh, Chang Il Oh, Do Hyeon Kim, Jin Kuk Lee, Irina Nam
  • Publication number: 20100021830
    Abstract: An aromatic ring-containing polymer, a polymer mixture, an antireflective hardmask composition, and a method for patterning a material on a substrate, the aromatic ring-containing polymer including at least one aromatic ring-containing polymer represented by Formulae 1, 2, or 3.
    Type: Application
    Filed: October 1, 2009
    Publication date: January 28, 2010
    Inventors: Min Soo Kim, Dong Seon Uh, Chang Il Oh, Kyong Ho Yoon, Kyung Hee Hyung, Jin Kuk Lee, Jong-Seob Kim, Hwan Sung Cheon, Irina Nam, Nataliya Tokareva