Patents by Inventor Chang Hee Lee

Chang Hee Lee 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: 11034135
    Abstract: The present disclosure relates to a laminated glass and a method of manufacturing the laminated glass. The laminated glass includes a soda-lime glass and a thin plate glass laminated on one surface of the soda-lime glass, and has excellent durability and light weight.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: June 15, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jun Hak Oh, Jae Hyuk Yoon, Chang Hee Lee, Ho Seong Kang
  • Patent number: 11027525
    Abstract: The present disclosure provides a curved laminated glass including a curved soda lime glass and a curved thin plate glass provided on a concave surface of the curved soda lime glass, in which a thickness of the curved soda lime glass is larger than a thickness of the curved thin plate glass, and compressive stress is formed on a surface opposite to a surface of the curved thin plate glass adjacent to the curved soda lime glass.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 8, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jun Hak Oh, Chang Hee Lee, Jae Hyuk Yoon, Ho Seong Kang
  • Publication number: 20210119167
    Abstract: The present disclosure relates to an organic light-emitting diode: comprising a first electrode; a second electrode facing the first electrode; and a hole transport layer and a light-emitting layer disposed in that order between the first and the second electrode, wherein the light-emitting layer includes a host and a hole assistant material represented by the following Chemical Formula A, the hole assistant material having a highest occupied molecular orbital (HOMO) energy level lower in absolute value than that of the host.
    Type: Application
    Filed: December 17, 2020
    Publication date: April 22, 2021
    Inventors: Young-Hwan PARK, Seo-Yeon Yoon, Chang-Hee Lee, So Young Shim
  • Publication number: 20210078304
    Abstract: The present disclosure relates to a method for manufacturing curved laminated glass and curved laminated glass manufactured by the same. The method includes providing a curved thick plate glass; providing a thin plate glass whose thickness is smaller than that of the curved thick plate glass; stacking a support film comprising a ductile layer and an elastic layer on one surface of the thin plate glass; positioning a lamination film or a bonding agent between the other surface of the thin plate glass and a concave surface of the curved thick plate glass; and laminating the thin plate glass so as to be aligned with a concave surface of the curved thick plate glass by elastically deforming the thin plate glass provided with the support film.
    Type: Application
    Filed: January 8, 2019
    Publication date: March 18, 2021
    Inventors: Jae Hyuk YOON, Jun Hak OH, Ho Seong KANG, Chang Hee LEE
  • Patent number: 10950814
    Abstract: The present disclosure relates to an organic light-emitting diode: comprising a first electrode; a second electrode facing the first electrode; and a hole transport layer and a light-emitting layer disposed in that order between the first and the second electrode, wherein the light-emitting layer includes a host and a hole assistant material represented by the following Chemical Formula A, the hole assistant material having a highest occupied molecular orbital (HOMO) energy level lower in absolute value than that of the host.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: March 16, 2021
    Assignee: SFC CO., LTD.
    Inventors: Young-Hwan Park, Seo-Yeon Yoon, Chang-Hee Lee, So Young Shim
  • Publication number: 20210053859
    Abstract: The present invention relates to a method capable of easily manufacturing a curved thin glass sheet and a curved joined glass sheet to which functionality is added.
    Type: Application
    Filed: May 21, 2019
    Publication date: February 25, 2021
    Inventors: Jun Hak Oh, Ho Seong Kang, Jae Hyuk Yoon, Chang Hee Lee
  • Patent number: 10919270
    Abstract: Provided is a laminated glass, comprising: a soda lime glass; and a non-tempered alkali-free glass bonded to one surface of the soda lime glass, in which a thickness of the soda lime glass is larger than a thickness of the non-tempered alkali-free glass, and an elastic modulus of the non-tempered alkali-free glass is larger than an elastic modulus of the soda lime glass.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jun Hak Oh, Jae Hyuk Yoon, Chang Hee Lee, Byung Kook Choi
  • Patent number: 10886598
    Abstract: An antenna module includes: a coil part including an antenna wiring disposed on an insulating substrate; a first magnetic part disposed on a first surface of the insulating substrate; and a second magnetic part disposed on a second surface of the insulating substrate, wherein the first magnetic part and the second magnetic part overlap with each other on a center region of the antenna wiring.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 5, 2021
    Assignee: WITS Co., Ltd.
    Inventors: Hee Seung Kim, Ki Won Chang, Jae Sun Won, Chang Hee Lee, Hyo Jung Yoon
  • Patent number: 10830766
    Abstract: Natural and/or synthetic antibodies for specific proteins are adhered to nanoparticles. The nanoparticles are adhered to a substrate and the substrate is exposed to a sample that may contain the specific proteins. The substrates are then tested with surface enhanced Raman scattering techniques and/or localized surface plasmon resonance techniques to quantify the amount of the specific protein in the sample.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: November 10, 2020
    Assignee: Washington University
    Inventors: Srikanth Singamaneni, Evan Kharasch, Jeremiah Morrissey, Chang Hee Lee
  • Publication number: 20200339472
    Abstract: The present disclosure relates to a method of manufacturing a curved joined glass sheet having excellent optical quality by adjusting a radius of curvature of a curved thick glass sheet and a radius of curvature of a curved thin glass sheet.
    Type: Application
    Filed: May 20, 2019
    Publication date: October 29, 2020
    Inventors: Jae Hyuk YOON, Jun Hak OH, Ho Seong KANG, Chang Hee LEE
  • Patent number: 10741768
    Abstract: The present disclosure relates to an organic light-emitting diode exhibiting high luminance efficiency, low-voltage operation, and long lifespan and, more particularly, to an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron density control layer sequentially arranged between the first electrode and the second electrode wherein the light-emitting layer includes at least one of the amine compounds represented by Chemical Formula A or B and the electron density control layer includes at least one of the compounds represented by Chemical Formulas F to H. The structures of Chemical Formulas A, B, and F to H are as described in the specification.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 11, 2020
    Assignee: SFC CO., LTD.
    Inventors: Chang-Hee Lee, Hyun-Jong Seo, Seo-Yeon Yoon, So Young Shim, Si-In Kim
  • Patent number: 10662107
    Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 26, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Du-Sun Hwang, Hyun-Jin Shim, Chang-Hee Lee, Byung-Kook Choi, Jun-Bo Choi
  • Patent number: 10622705
    Abstract: An antenna module disposed inside a conductive cover and performing near field communications includes: a wiring portion having antenna wirings formed on an insulating substrate and having a first surface facing an inner surface of the conductive cover and a second surface opposing the first surface; a first magnetic portion disposed between the first surface of the wiring portion and the conductive cover; and a second magnetic portion disposed on the second surface of the wiring portion, wherein the first magnetic portion and the second magnetic portion are disposed to partially overlap each other or to have edges thereof in vertical correspondence with each other.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 14, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Jae Sun Won, Young Min Cheon, Hee Seung Kim, Jae Hyuk Jang, Gie Hyoun Kweon, Chang Hee Lee, Soon Joung Yio, Hyo Jung Yoon
  • Patent number: 10611672
    Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Du-Sun Hwang, Hyun-Jin Shim, Chang-Hee Lee, Byung-Kook Choi, Jun-Bo Choi
  • Patent number: 10580560
    Abstract: A coil module including a magnetic body having a first body portion extended in a first axial direction and a second body portion extended in a second axial direction different from the first axial direction; and a transmitting coil including a first coil wound around a portion of the first body portion and a second coil wound around a portion of the second body portion.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: March 3, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Hee Seung Kim, Ki Won Chang, Chang Hee Lee, Jae Sun Won, Hyo Jung Yoon, Gie Hyoun Kweon
  • Publication number: 20200064482
    Abstract: The present invention provides a LIDAR 100 including a correlation signal generation unit 110 for generating two or more different correlation signals, a signal transmission/reception unit 130 for outputting a part of the two or more correlation signals as a transmission signal St, and receive a signal returned by reflecting from a target 140 among the output transmission signals St as a received signal Sr, a delay time adjustment unit 150 for delaying a reference signal by an appropriate delay time using the reference signal Sref, and a delay time decision unit 180 for determining whether a signal obtained by adding the received signal and the delay reference signal together has an SNR higher than a threshold, thus to determine whether the delay time delayed by the delay time adjustment unit 150 is appropriate or not, and a processing unit 190 for confirming characteristics of the target 140.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Inventors: Chang-Hee LEE, Il-Pyeong HWANG, Myeonggyun KYE, YongJun JEONG, Jongwan KIM, Kwanyong LEE, SeokJun YUN
  • Publication number: 20200055281
    Abstract: The present disclosure relates to a method of manufacturing a curved laminated glass and the curved laminated glass. The method comprises preparing a curved soda lime glass, providing a functional layer on one surface of an alkali-free glass, disposing a lamination film or a bonding agent between the curved soda lime glass and the functional layer, and elastically deforming the alkali-free glass, and laminating the alkali-free glass with the curved soda lime glass.
    Type: Application
    Filed: December 21, 2017
    Publication date: February 20, 2020
    Inventors: Jae Hyuk YOON, Jun Hak OH, Ho Seong KANG, Chang Hee LEE
  • Publication number: 20200055282
    Abstract: The present disclosure provides a curved laminated glass including a curved soda lime glass and a curved thin plate glass provided on a concave surface of the curved soda lime glass, in which a thickness of the curved soda lime glass is larger than a thickness of the curved thin plate glass, and compressive stress is formed on a surface opposite to a surface of the curved thin plate glass adjacent to the curved soda lime glass.
    Type: Application
    Filed: September 28, 2017
    Publication date: February 20, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jun Hak OH, Chang Hee LEE, Jae Hyuk YOON, Ho Seong KANG
  • Patent number: 10559758
    Abstract: Disclosed herein is an organic light-emitting diode, comprising: a first electrode; a second electrode facing the first electrode; and a light-emitting layer and an electron density control layer in that order between the first electrode and the second electrode, wherein the electron density control layer includes at least one selected from among compounds represented by the following Chemical Formulas A to D, and the light emitting layer includes at least one anthracene compound represented by the following Chemical Formula H. The structures of Chemical Formulas A to D and H are as described in the specification.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 11, 2020
    Assignee: SFC CO., LTD.
    Inventors: Young-Hwan Park, So Young Shim, Seo-Yeon Yoon, Chang-Hee Lee
  • Patent number: 10560155
    Abstract: An information transmitter includes a transmitting coil configured to receive a coil voltage to generate a magnetic field; and a signal generator configured to receive a direct current (DC) voltage and operating switches to apply the coil voltage to the transmitting coil, for a first time constant in a first current path, wherein the coil voltage includes a first value, and for a second time constant in a second current path, wherein the coil voltage includes a second value smaller than the first value, and wherein the first time constant and second time constant are different from each other.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: February 11, 2020
    Assignee: WITS Co., Ltd.
    Inventors: Hee Seung Kim, Jae Hyuk Jang, Chang Hee Lee, Jae Sun Won, Hyo Jung Yoon, Gie Hyoun Kweon