Patents by Inventor Heesun Ji

Heesun Ji 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).

  • Compound, organic electric element using the same, and an electronic device thereof
    Patent number: 10026905
    Abstract: A compound represented by Formula 1. An organic electric element includes a first electrode, a second electrode, and an organic material layer including the compound of Formula 1. The organic material layer include a light emitting layer, a hole transport layer including a compound represented by Formula 2, and an emission-auxiliary layer including the compound represented by Formula 1. When the organic electric element includes the compound in the organic material layer, luminous efficiency, color purity, and life span can be improved.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: July 17, 2018
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Dongha Kim, Sunhee Lee, Yeonhee Choi, Soungyun Mun, Jungcheol Park, Yongwook Park, Heesun Ji, Junghwan Park, Bumsung Lee, Sunpil Hwang
  • Compound, organic electronic element using same, and electronic device using the latter
    Patent number: 9691990
    Abstract: The present invention relates to a compound, which is represented by one chemical formula among the chemical formulas (1) to (3), an organic electronic element comprising the compound, and an electronic device comprising the organic electronic element. The compound is characterized by comprising at least one phenyl group having at least one substitution with deuterium or tritium.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: June 27, 2017
    Assignee: Duk San Neolux Co., Ltd.
    Inventors: Soungyun Mun, Bumsung Lee, Jungcheol Park, Kiwon Kim, Yongwook Park, Jeongkeun Park, Heesun Ji, Junghwan Park
  • Compound comprising a five-membered hetero ring, an organic electrical element using same and a terminal thereof
    Patent number: 9178163
    Abstract: A compound having a five-membered hetero ring, an organic electrical element using the same and a terminal thereof. An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound. When the organic electric element includes the compound in an organic material layer, luminous efficiency, stability, and life span can be improved.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: November 3, 2015
    Assignee: DUK SAN NEOLUX CO., LTD.
    Inventors: Junghwan Park, Daesung Kim, Heesun Ji, Soungyun Mun, Sunhee Lee, Bumsung Lee
  • COMPOUND COMPRISING A FIVE-MEMBERED HETERO RING, AN ORGANIC ELECTRICAL ELEMENT USING SAME AND A TERMINAL THEREOF
    Publication number: 20150221873
    Abstract: A compound having a five-membered hetero ring, an organic electrical element using the same and a terminal thereof. An organic electric element includes a first electrode, a second electrode, and an organic material layer between the first electrode and the second electrode. The organic material layer includes the compound. When the organic electric element includes the compound in an organic material layer, luminous efficiency, stability, and life span can be improved.
    Type: Application
    Filed: April 13, 2015
    Publication date: August 6, 2015
    Inventors: Junghwan PARK, Daesung KIM, Heesun JI, Soungyun MUN, Sunhee LEE, Bumsung LEE
  • Compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof
    Patent number: 9005779
    Abstract: Disclosed are a compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 14, 2015
    Assignee: Duk San Neolux Co., Ltd.
    Inventors: Junghwan Park, Daesung Kim, Heesun Ji, Soungyun Mun, Sunhee Lee, Bumsung Lee
  • COMPOUND, ORGANIC ELECTRIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF
    Publication number: 20140374722
    Abstract: A compound represented by Formula 1. An organic electric element includes a first electrode, a second electrode, and an organic material layer including the compound of Formula 1. The organic material layer include a light emitting layer, a hole transport layer including a compound represented by Formula 2, and an emission-auxiliary layer including the compound represented by Formula 1. When the organic electric element includes the compound in the organic material layer, luminous efficiency, color purity, and life span can be improved.
    Type: Application
    Filed: January 14, 2013
    Publication date: December 25, 2014
    Inventors: Dongha Kim, Sunhee Lee, Yeonhee Choi, Soungyun Mun, Jungcheol Park, Yongwook Park, Heesun Ji, Junghwan Park, Bumsung Lee, Sunpil Hwang
  • COMPOUND, ORGANIC ELECTRONIC ELEMENT USING SAME, AND ELECTRONIC DEVICE USING THE LATTER
    Publication number: 20140027747
    Abstract: The present invention relates to a compound, which is represented by one chemical formula among the chemical formulas (1) to (3), an organic electronic element comprising the compound, and an electronic device comprising the organic electronic element. The compound is characterized by comprising at least one phenyl group having at least one substitution with deuterium or tritium.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 30, 2014
    Applicant: DUKSAN HIGH METAL CO., LTD.
    Inventors: Soungyun Mun, Bumsung Lee, Jungcheol Park, Kiwon Kim, Yongwook Park, Jeongkeun Park, Heesun Ji, Junghwan Park
  • COMPOUND AND ORGANIC ELECTRICAL ELEMENT USING SAME, AND ELECTRONIC DEVICE AND HEAT-RESISTANCE MEASURING METHOD THEREWITH
    Publication number: 20130334518
    Abstract: The present invention provides a diphenyl diamine derivative which is a combination of a nitrogen-containing diphenyl fluorenyl group and a spiro fluorenyl group; an organic electroluminescent device using the same; and a display apparatus which uses the organic electroluminescent device.
    Type: Application
    Filed: February 2, 2012
    Publication date: December 19, 2013
    Applicant: DUKSAN HIGH METAL CO., LTD.
    Inventors: Yongwook Park, Bumsung Lee, Soungyun Mun, Junghwan Park, Jungcheol Park, Kiwon Kim, Jeongkeun Park, Hwasoon Jung, Heesun Ji
  • COMPOUND COMPRISING A FIVE-MEMBERED HETERO RING, AN ORGANIC ELECTRICAL ELEMENT USING THE SAME AND A TERMINAL THEREOF
    Publication number: 20130069049
    Abstract: Disclosed are a compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 21, 2013
    Applicant: DUKSAN HIGH METAL CO., LTD.
    Inventors: Junghwan Park, Daesung Kim, Heesun Ji, Soungyun Mun, Sunhee Lee, Bumsung Lee