Patents by Inventor Jeong-hun Kwak

Jeong-hun Kwak 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: 20180186953
    Abstract: A high gloss acrylonitrile butadiene styrene (ABS) sheet includes an ABS substrate, an intermediate film of poly(3,4-ethylenedioxythiophen)-polystyrene sulfonate formed on top of the ABS substrate, and a fluorinated resin film of poly(vinylidene fluoride-trifluoroethylene) formed on top of the intermediate film. A method of preparing the high gloss ABS sheet is also disclosed.
    Type: Application
    Filed: March 2, 2018
    Publication date: July 5, 2018
    Inventors: Eun Ju NOH, Min Hee LEE, Hey Jeong LEE, Jeong Hun KWAK, Wan Sik KIM, Ji Young JO, Hyeon Jun LEE
  • Patent number: 9938386
    Abstract: A high gloss acrylonitrile butadiene styrene (ABS) sheet includes an ABS substrate, an intermediate film of poly(3,4-ethylenedioxythiophen)-polystyrene sulfonate formed on top of the ABS substrate, and a fluorinated resin film of poly(vinylidene fluoride-trifluoroethylene) formed on top of the intermediate film. A method of preparing the high gloss ABS sheet is also disclosed.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 10, 2018
    Assignees: HYUNDAI MOTOR COMPANY, GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Eun Ju Noh, Min Hee Lee, Hey Jeong Lee, Jeong Hun Kwak, Wan Sik Kim, Ji Young Jo, Hyeon Jun Lee
  • Publication number: 20160185924
    Abstract: A high gloss acrylonitrile butadiene styrene (ABS) sheet includes an ABS substrate, an intermediate film of poly(3,4-ethylenedioxythiophen)-polystyrene sulfonate formed on top of the ABS substrate, and a fluorinated resin film of poly(vinylidene fluoride-trifluoroethylene) formed on top of the intermediate film. A method of preparing the high gloss ABS sheet is also disclosed.
    Type: Application
    Filed: September 30, 2015
    Publication date: June 30, 2016
    Inventors: Eun Ju NOH, Min Hee LEE, Hey Jeong LEE, Jeong Hun KWAK, Wan Sik KIM, Ji Young JO, Hyeon Jun LEE
  • Patent number: 9073752
    Abstract: The present invention relates to a quantum dot light emitting element which can form a quantum light emitting layer configured of charge transporting particles and quantum dots and a charge transporting layer in a solution process, to reduce process expense, and a method for manufacturing the same. The quantum dot light emitting element includes a substrate, an anode formed on the substrate, a quantum light emitting layer formed on the anode, the quantum light emitting layer having charge transporting particles and quantum dots mixed therein, and a cathode formed on the quantum light emitting layer.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: July 7, 2015
    Assignees: LG Display Co., Ltd., SNU R&DB FOUNDATION
    Inventors: Ho-Cheol Kang, Young-Hoon Noh, Chang-Hee Lee, Kook Heon Char, Seong-Hoon Lee, Jeong Hun Kwak, Wan Ki Bae, Jae Hoon Lim, Dong Gu Lee
  • 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: 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: 20110284819
    Abstract: The present invention relates to a quantum dot light emitting element which can form a quantum light emitting layer configured of charge transporting particles and quantum dots and a charge transporting layer in a solution process, to reduce process expense, and a method for manufacturing the same. The quantum dot light emitting element includes a substrate, an anode formed on the substrate, a quantum light emitting layer formed on the anode, the quantum light emitting layer having charge transporting particles and quantum dots mixed therein, and a cathode formed on the quantum light emitting layer.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 24, 2011
    Inventors: Ho-Cheol Kang, Young-Hoon Noh, Chang-Hee Lee, Kook Heon Char, Seong-Hoon Lee, Jeong Hun Kwak, Wan Ki Bae, Jae Hoon Lim, Dong Gu Lee
  • 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: 20100006830
    Abstract: An organic semiconductor compound based on a 2,7-bis-(vinyl)[1]benzothieno[3,2-b]benzothiophene backbone, an organic semiconductor thin film, an organic thin film transistor and methods of forming the same are provided, the organic semiconductor compound including a vinyl group derived from a phosphonate derivative represented by Formula 1 and an aldehyde derivative represented by Formula 2 below:
    Type: Application
    Filed: July 8, 2009
    Publication date: January 14, 2010
    Inventors: Jong-in Hong, Myoung-chul Um, Jeong-hun Kwak, Chang-hee Lee