Patents by Inventor Yu Jin HEO

Yu Jin HEO 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).

  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
    Publication number: 20200339513
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: December 24, 2018
    Publication date: October 29, 2020
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Yu-Jin HEO, Hyun-Ju LA, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20200255452
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: September 19, 2019
    Publication date: August 13, 2020
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Hyun-Ju LA, Yu-Jin HEO, Won-Jang JEONG
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME
    Publication number: 20200243775
    Abstract: The present specification relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: October 18, 2018
    Publication date: July 30, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Hyun-Ju LA, Yu-Jin HEO, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT USING SAME
    Publication number: 20190288218
    Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: November 30, 2017
    Publication date: September 19, 2019
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Hyun-Ju LA, Yu-Jin HEO, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • LED-BASED LIGHTING APPARATUS WITH HEAT PIPE COOLING STRUCTURE
    Publication number: 20150323166
    Abstract: A lighting apparatus includes a housing, a light emitting module disposed on an open region at a first side of the housing, a heat sink unit disposed within the housing to absorb and discharge heat from the light emitting module, and at least one subsidiary heat pipe independent of the heat sink unit and disposed on the heat sink base. The light emitting module includes a heat sink base on which a semiconductor optical device is disposed.
    Type: Application
    Filed: July 7, 2015
    Publication date: November 12, 2015
    Inventors: Su Woon LEE, Seung Ki KIM, Jung Hwa KIM, Seon Min PARK, Hwi Seok YANG, Yu Jin HEO
  • LED-based lighting apparatus with heat pipe cooling structure
    Patent number: 9109784
    Abstract: A lighting apparatus includes a housing, a light emitting module disposed on an open region at one side of the housing, and a heat sink unit placed within the housing to absorb and discharge heat from the light emitting module. The light emitting module includes a heat sink base on which a semiconductor optical device is mounted. The heat sink unit includes at least one main heat pipe having one side adjoining the heat sink base and a heat sink block adjoining the other side of the main heat pipe to cooperate with the main heat pipe.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: August 18, 2015
    Assignee: Posco LED Company Ltd.
    Inventors: Su Woon Lee, Seung Ki Kim, Jung Hwa Kim, Seon Min Park, Hwi Seok Yang, Yu Jin Heo
  • OPTICAL SEMICONDUCTOR-BASED LIGHTING APPARATUS
    Publication number: 20130077293
    Abstract: The present invention provides an optical semiconductor-based lighting apparatus. The lighting apparatus includes a housing, a light emitting module disposed on an open region at one side of the housing, and a heat sink unit placed within the housing to absorb and discharge heat from the light emitting module. The light emitting module includes a heat sink base on which a semiconductor optical device is mounted. The heat sink unit includes at least one main heat pipe having one side adjoining the heat sink base and a heat sink block adjoining the other side of the main heat pipe to cooperate with the main heat pipe.
    Type: Application
    Filed: May 24, 2012
    Publication date: March 28, 2013
    Applicant: POSCO LED COMPANY LTD
    Inventors: Su Woon LEE, Seung Ki KIM, Jung Hwa KIM, Seon Min PARK, Hwi Seok YANG, Yu Jin HEO