Patents by Inventor Kook-Heon Char

Kook-Heon Char 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: 8552416
    Abstract: The present invention relates to a quantum dot light emitting diode device in which a hole transportation layer is formed after forming a quantum dot light emitting layer by a solution process by applying an inverted type quantum dot light emitting diode device for making free selection of a hole transportation layer material that enables easy injection of a hole to the quantum dot light emitting layer; and display device and method therewith.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: October 8, 2013
    Assignees: LG Display Co., Ltd., SNU R&DB Foundation
    Inventors: Young-Mi Kim, Ho-Cheol Kang, Ho-Jin Kim, Chang-Hee Lee, Kook-Heon Char, Seong-Hoon Lee, Jeong-Hun Kwak, Wan-Ki Bae, Dong-Gu Lee, Jae-Hoon Lim
  • Patent number: 8303692
    Abstract: A polymer membrane, based on a facilitated transport mechanism, for separating olefins from paraffins, and a method for fabricating is provided. In the polymer membrane for facilitated transport, silver nanoparticles are partially cationized and play a role as a carrier for transporting olefins across the membrane, with p-benzoquinone serving as an electron acceptor.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: November 6, 2012
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Yong-Soo Kang, Kook-Heon Char, Sang-Wook Kang
  • Patent number: 8268458
    Abstract: A carbazole compound represented by Formula 1: wherein X1, X2 and X3 are each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 arylalkyl group, a substituted or unsubstituted C2-C30 heteroaryl group, a substituted or unsubstituted C3-C20 cycloalkyl group and a substituted or unsubstituted C5-C30 heterocycloalkyl group; and l, m and n are each independently an integer from 0 to 5.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yi-yeol Lyu, Kook-heon Char, Chang-hee Lee, Jeong-hun Kwak
  • Publication number: 20110291071
    Abstract: The present invention relates to a quantum dot light emitting diode device in which a hole transportation layer is formed after forming a quantum dot light emitting layer by a solution process by applying an inverted type quantum dot light emitting diode device for making free selection of a hole transportation layer material that enables easy injection of a hole to the quantum dot light emitting layer; and display device and method therewith.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 1, 2011
    Inventors: Young-Mi Kim, Ho-Cheol Kang, Ho-Jin Kim, Chang-Hee Lee, Kook-Heon Char, Seong-Hoon Lee, Jeong-Hun Kwak, Wan-Ki Bae, Dong-Gu Lee, Jae-Hoon Lim
  • Publication number: 20100181900
    Abstract: A carbazole compound represented by Formula 1: wherein X1, X2 and X3 are each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted C1-C20 alkyl group, a substituted or unsubstituted C1-C20 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 arylalkyl group, a substituted or unsubstituted C2-C30 heteroaryl group, a substituted or unsubstituted C3-C20 cycloalkyl group and a substituted or unsubstituted C5-C30 heterocycloalkyl group; and l, m and n are each independently an integer from 0 to 5.
    Type: Application
    Filed: October 27, 2009
    Publication date: July 22, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Yi-yeol Lyu, Kook-heon Char, Chang-hee Lee, Jeong-hun Kwak
  • Publication number: 20070256560
    Abstract: Disclosed herein are a polymer membrane, based on a facilitated transport mechanism, for separating olefins from paraffins, and a method for fabricating the same. In the polymer membrane for facilitated transport, silver nanoparticles are partially cationized and play a role as a carrier for transporting olefins across the membrane, with p-benzoquinone serving as an electron acceptor.
    Type: Application
    Filed: December 13, 2006
    Publication date: November 8, 2007
    Inventors: Yong-Soo KANG, Kook-Heon Char, Sang-Wook Kang
  • Patent number: 6881444
    Abstract: The present invention provides a process for fabricating ultrathin monolayers or ultrathin multilayer films, the process comprising the steps of: introducing positive or negative charge or a material capable of hydrogen-bonding to a substrate and placing the substrate on a spinner(pretreating step); introducing a material (A) bindable with the material deposited on the substrate, and spinning the substrate at 500 rpm to 30000 rpm for 4 to 200 seconds(first coating step); dropping washing solvent onto the substrate after completion of the first coating and spinning the substrate at 500 rpm to 30000 rpm for 4 to 200 sec to remove weakly-bound material (A) and form a thin film (A)(first washing step); introducing another material (B) bindable with the material (A) coated on the substrate and further coating it in the same condition as of the first coating(second coating step), dropping washing solvent onto the substrate after completion of the second coating and spinning the substrate at 500 rpm to 30000 rpm for
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: April 19, 2005
    Inventors: Jong-Dal Hong, Kook-Heon Char, Jin-Han Cho
  • Publication number: 20040047988
    Abstract: The present invention relates to polymethylsilsesquioxane copolymers, and methods for preparing the copolymers and low-dielectric PMSSQ coating films. Polymethylsilsesquioxane copolymer of the present invention is synthesized by a copolymerization reaction using a methyltrialkokxysilane [A: CH3Si(OR)3] and &agr;,&ohgr;-bistrialkokxysilane compound [B: (RO)3Si—X—Y—Si(OR)3, wherein X and Y are identical or different hydrocarbon groups and are linked to each other by carbon] as a copolymerization monomer, and it contains Si—OH terminal group more than 10% in content, and has molecular weight ranging from 5,000 to 30,000. The coating film prepared from the low dielectric PMSSQ according to the present invention meets the two inevitable requirements for next generation semiconductor industry, i.e., mechanical strength (hardness 1.9 Gpa, Modulus 12 Gpa) and low dielectric property (<2.3).
    Type: Application
    Filed: September 18, 2003
    Publication date: March 11, 2004
    Inventors: Jin-Kyu Lee, Hee-Woo Rhee, Kook-Heon Char, Do-Yeung Yoon
  • Publication number: 20030026898
    Abstract: The present invention provides a process for fabricating ultrathin monolayers or ultrathin multilayer films, the process comprising the steps of: introducing positive or negative charge or a material capable of hydrogen-bonding to a substrate and placing the substrate on a spinner(pretreating step); introducing a material (A) bindable with the material deposited on the substrate, and spinning the substrate at 500 rpm to 30000 rpm for 4 to 200 seconds(first coating step); dropping washing solvent onto the substrate after completion of the first coating and spinning the substrate at 500 rpm to 30000 rpm for 4 to 200 sec to remove weakly-bound material (A) and form a thin film (A)(first washing step); introducing another material (B) bindable with the material (A) coated on the substrate and further coating it in the same condition as of the first coating(second coating step), dropping washing solvent onto the substrate after completion of the second coating and spinning the substrate at 500 rpm to 30000 rpm for
    Type: Application
    Filed: January 18, 2002
    Publication date: February 6, 2003
    Inventors: Jong-Dal Hong, Kook-Heon Char, Jin-Han Cho