Patents by Inventor Chang-Young Lee

Chang-Young 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: 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
  • Publication number: 20200238189
    Abstract: The present disclosure relates to a toy block, and the toy block includes a main body, a plate-shaped magnetic body located in an accommodation space in the main body and including a first surface and a second surface having different polarities, and a guide part disposed in the accommodation space and configured to guide rotation of the plate-shaped magnetic body.
    Type: Application
    Filed: June 10, 2019
    Publication date: July 30, 2020
    Inventors: Kee Young PARK, GYU JIN SEO, JU SEONG LEE, Chang Moon LEE, KI HO LEE, Yoon Su CHA, Na Young GO, So Lee KANG, Jo Un YI
  • Publication number: 20200241137
    Abstract: The present disclosure provides a hypertube system for detecting a position of a hypertube vehicle, including a hypertube vehicle, a tube configured to surround a travel path of the hypertube vehicle, At least one LiDAR sensor each mounted on an inner wall of the tube and including a laser transmitter configured to irradiate a laser beam toward the hypertube vehicle and a laser receiver configured to detect a laser, and a reflector configured to reflect the laser irradiated from the LiDAR sensor, wherein the reflector may be disposed in the hypertube vehicle, and wherein the laser beam reflected from the reflector reaches the laser receiver of the LiDAR sensor to be used in detecting the position of the hypertube vehicle.
    Type: Application
    Filed: December 10, 2018
    Publication date: July 30, 2020
    Applicant: Korea Railroad Research Institute
    Inventors: SuYong CHOI, Jae Heon CHOI, Jung Youl LIM, Chang Young LEE, Kwan Sup LEE, Yong Jun JANG, Jeong Min JO, Jin Ho LEE, Min Hwan OK, Jae Hoon KIM, Lee Hyeon KIM
  • Patent number: 10723949
    Abstract: Disclosed is a liquid crystal composition including at least one compound selected from the group consisting of a liquid crystal compound expressed by Formula 1-1 and a liquid crystal compound expressed by Formula 1-2; at least one compound selected from the group consisting of a self-alignment compound expressed by Formula 2-1 and a self-alignment compound expressed by Formula 2-2; and at least one compound selected from the group consisting of a reactive mesogen expressed by Formula 3-1, a reactive mesogen expressed by Formula 3-2, a reactive mesogen expressed by Formula 3-3, a reactive mesogen expressed by Formula 3-4, and a reactive mesogen expressed by Formula 3-5. The liquid crystal composition also has negative dielectric anisotropy.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: July 28, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Young Kwon, Min-Hee Kim, Ji Eun Jang, Il Joon Kang, Jong Ho Son, Keun Chan Oh, Chang-Hun Lee
  • Patent number: 10722809
    Abstract: The present disclosure relates to a toy block, and the toy block includes a main body, a plate-shaped magnetic body located in an accommodation space in the main body and including a first surface and a second surface having different polarities, and a guide part disposed in the accommodation space and configured to guide rotation of the plate-shaped magnetic body.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 28, 2020
    Assignee: GYMWORLD INC.
    Inventors: Kee Young Park, Gyu Jin Seo, Ju Seong Lee, Chang Moon Lee, Ki Ho Lee, Yoon Su Cha, Na Young Go, So Lee Kang, Jo Un Yi
  • Publication number: 20200235126
    Abstract: An integrated circuit includes a first conductive pattern in a first conductive layer, a second conductive pattern in a second conductive layer over the first conductive layer, and a via electrically connected with the first conductive pattern and the second conductive pattern to allow a first current flowing from the first conductive pattern to the second conductive pattern and a second current flowing from the second conductive pattern to the first conductive pattern to pass through at different times. The via is placed on the first conductive pattern so that a path of the first current does not overlap with a path of the second current in the first conductive pattern.
    Type: Application
    Filed: April 8, 2020
    Publication date: July 23, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ha-young KIM, Chang-beom Kim, Hyun-jeong Roh, Tae-joong Song, Dal-hee Lee, Sung-we Cho
  • Publication number: 20200231789
    Abstract: Provided is a polyethylene resin film exhibiting more improved transparency while exhibiting excellent processability and mechanical properties. The polyethylene resin film having a density of 0.910 g/cm3 to 0.930 g/cm3, and a haze of 10% or less at a thickness of 90 ?m to 110 ?m includes a first polyethylene resin and a second polyethylene resin at a weight ratio of 6:4 to 8:2, wherein the first polyethylene resin has an MFRR (21.6/2.16) value of 27 to 40, and the second polyethylene resin has an MFRR (21.6/2.16) value of 15 to 23, and the MFRR (21.6/2.16) value is obtained by dividing a melt flow rate (MFR21.6) measured at a temperature of 230° C. under a load of 21.6 kg in accordance with ISO 1133 by a melt flow rate (MFR2.16) measured at a temperature of 230° C. under a load of 2.16 kg in accordance with ISO 1133.
    Type: Application
    Filed: December 3, 2018
    Publication date: July 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sol Cho, Yi Young Choi, Chang Hwan Jang, Seyoung Kim, Sung Min Lee, Seul Ki Im, Jinyoung Lee, Hyojoon Lee
  • Patent number: 10721749
    Abstract: An electronic device is provided. The electronic device includes at least one antenna on a designated band, at least one filtering unit for filtering signals received from the at least one antenna into a plurality of bands of the designated band, at least one switching unit for outputting the signals filtered by the at least one filtering unit to a first communication unit using a first communication function and a second communication unit using a second communication function, and a processor electrically connected with the at least one switching unit, the first communication unit, and the second communication unit for controlling the at least one switching unit so that, when a signal of a first band in the designated band is output to the first communication unit, a signal of a second band in the designated band is output to the second communication unit.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: July 21, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sung-Jin Park, Dae-Ho Kang, Hyun-Hee Kim, Chang-Won Nam, Min-Chull Paik, Hyung-Yeol Lee, Won-Joon Cho, Na-Young Hwang
  • Publication number: 20200227430
    Abstract: A vertical semiconductor device including a plurality of interlayer insulating layer patterns spaced apart from each other on a substrate and stacked in a vertical direction; a plurality of conductive layer patterns arranged between the interlayer insulating layer patterns and each having a rounded end, wherein at least one of the conductive layer patterns is configured to extend from one side wall of each of the interlayer insulating layer patterns and include a pad region, and the pad region includes a raised pad portion configured to protrude from a surface of the at least one conductive layer pattern; an upper interlayer insulating layer to cover the interlayer insulating layer patterns and the conductive layer patterns; and a contact plug configured to penetrate the upper interlayer insulating layer to be in contact with the raised pad portion of the at least one conductive layer pattern.
    Type: Application
    Filed: March 27, 2020
    Publication date: July 16, 2020
    Inventors: Jo-young Park, Chang-seok Kang, Chang-sup Lee, Se-mee Jang
  • Publication number: 20200216602
    Abstract: A composition for an automotive interior skin, a method for manufacturing the same, and an automotive interior skin manufactured using the same. The composition for an automotive interior skin includes: 30 wt % to 70 wt % of a polyol compound; 5 wt % to 40 wt % of dicyclohexylmethane-4,4?-diisocyanate; and 5 wt % to 30 wt % of an aromatic glycol-based chain extender.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 9, 2020
    Inventors: Chang Wan SON, Dae Young KWON, Jae Chan LEE, Hoon Jeong KIM, Gyu Min LEE
  • Patent number: 10706796
    Abstract: A liquid crystal display includes a display panel, a data driver, and a scan driver. The display panel includes first and second pixel groups, each of having two pixels. The data driver is connected to the display panel via a plurality of data lines. The scan driver is connected to the display panel via a plurality of scan lines. The first pixel group is connected to one of the data lines. The second pixel group is connected to both the data line to which the first pixel group is connected and a data line adjacent to the data line to which the first pixel group is connected.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: July 7, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon Kyoon Mok, Seong Young Lee, Hyung Jun Park, Dong Hyun Yoo, Kyung Hoe Lee, Hwan Young Jang, Chang Won Jeong
  • Patent number: 10707912
    Abstract: Provided are a mobile electronic apparatus, an accessory device for the mobile electronic apparatus, and an electronic apparatus including the accessory device. The mobile electronic apparatus includes: a display unit including a display screen; a cover detector detecting identification (ID) information of a cover when the display screen is covered by the cover; and a processor displaying a user interface (UI) screen corresponding to the cover on the display screen by driving a program corresponding to the ID information of the cover when receiving the ID information of the cover.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: July 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Kim, Eun-young Cho, Mi-jeong Song, Sang-hun Lee, Sung-hwan Park, Chang-jun Lee
  • Publication number: 20200210295
    Abstract: A memory system includes: a memory device including a master block and a back-up master block; and a controller suitable for performing a boot operation by using boot data that is read from the master block or the back-up master block, wherein the controller includes: a booting manager suitable for reading boot data from the back-up master block when an operation of reading the boot data from the master block failed; and a test read manager suitable for performing a test read operation on the back-up master block whenever the number of times that the boot data is read reaches a threshold, and performing a recovery operation on the back-up master block when the test read operation is fails.
    Type: Application
    Filed: October 7, 2019
    Publication date: July 2, 2020
    Inventors: Joo-Young LEE, Chang-Han KIM
  • Publication number: 20200211487
    Abstract: An electronic cover according to an embodiment of the disclosure may include a light-transmissive first electrode layer, a light-transmissive second electrode layer disposed below the first electrode layer, a liquid crystal layer disposed between the first electrode layer and the second electrode layer and including a liquid crystal reacting to an electrical field generated when power is supplied to the first electrode layer and the second electrode layer, a color layer disposed below the second electrode layer and including a light-transmissive color material, and a reflective layer disposed below the color layer and including a light-reflective material. Various other embodiments are also possible.
    Type: Application
    Filed: August 31, 2018
    Publication date: July 2, 2020
    Inventors: Na-Kyoung LEE, Harim KIM, Min-Sung LEE, Song Hee JUNG, Na-Young KIM, Dong Hun KIM, Youngsang JANG, Seongwon CHA, Hyun Soo KIM, Dong-Hyun YEOM, Chang-Ryong HEO
  • Patent number: 10699868
    Abstract: Disclosed is a device for generating an organic molecular cluster ion beam, the device including a receiver configured to accommodate an organic material, a cluster generator configured to generate a cluster by supersonic expanding the organic material accommodated in the receiver at a high speed, a photo-ionizer configured to temporarily accommodate the cluster that is generated through the cluster generator, an ultraviolet (UV) light source configured to irradiate an UV pulse to the photo-ionizer to ionize the cluster, and entrance electrodes disposed at both sides of the photo-ionizer and configured to provide a potential difference to the photo-ionizer to generate a cluster ion beam.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 30, 2020
    Assignee: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Chang Min Choi, Myoung Choul Choi, Sang Ju Lee, Ji Young Baek, Jeong Jin Kim
  • Patent number: 10698237
    Abstract: An optical modulator and a 3D image acquisition apparatus including an optical modulator are provided. The optical modulator is disposed in a multiple quantum well including a plurality of quantum wells and a plurality of quantum barriers, and includes at least one carrier block disposed in the multiple quantum well restricting the carrier movement between the multiple quantum wells.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-young Park, Yong-hwa Park, Sang-hun Lee
  • Publication number: 20200203677
    Abstract: The present invention relates to an electrochemical device allowing charge and discharge of electric energy by an electrochemical reaction, and a method of manufacturing the same. More particularly, the present invention relates to an electrochemical device which does not require a separate terminal, and a method of continuously producing the same.
    Type: Application
    Filed: September 10, 2018
    Publication date: June 25, 2020
    Inventors: Chang Kyoo LEE, Sang-Young LEE
  • Publication number: 20200203324
    Abstract: An electronic device comprising: a first display panel having a first side facing an eye of a user; a second display panel having a first side disposed at a second side of the first display panel; a first optical element disposed at the first display panel to emit one of red (R), green (G), or blue (B) light; a second optical element disposed at the first display panel together with the first optical element and configured to emit another one of the R, G, or B light; and a third optical element disposed at the second display panel to emit the remaining one of the R, the G, and the B light. The electronic device according to the present disclosure may be associated with an artificial intelligence module, a robot, an augmented reality (AR) device, a virtual reality (VR) device, and a device related to 5G services and the like.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Applicant: LG ELECTRONICS INC.
    Inventors: Seung Yong SHIN, Sungchul SHIN, Dong Young LEE, Chang Kyu HWANG
  • Patent number: 10693140
    Abstract: The present invention relates to a negative electrode and a secondary battery including the same, and particularly, to a negative electrode which includes a negative electrode active material layer including first active material particles each in the form of a secondary particle in which a plurality of primary particles are agglomerated; and second active material particles, wherein the second active material particles have an average particle size (D50) equal to or less than an average particle size (D50) of the primary particles, the first active material particle is artificial graphite, and the second active material particle is a graphite-based particle, and a secondary battery, a battery module, and a battery pack including the same.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Lilin Piao, Eun Kyung Kim, Sun Young Shin, Su Min Lee, Su Yeon Lee, Chang Ju Lee
  • Publication number: 20200190640
    Abstract: Provided is a cold-rolled steel sheet, a galvanized steel sheet and a galvannealed steel sheet, comprising, by wt %, 0.06-0.15% of C, 1.2% or less (excluding 0%) of Si, 1.7-2.7% of Mn, 0.15% or less (excluding 0%) of Mo, 1.0% or less (excluding 0%) of Cr, 0.1% or less (excluding 0%) of P, 0.01% or less (excluding 0%) of S, 0.001-0.04% of Ti, 0.001-0.04% of Nb, 0.01% or less (excluding 0%) of N, 0.01% or less (excluding 0%) of B, and a remainder of Fe and unavoidable impurities, wherein the Si, C, Mn, Mo and Cr contents satisfy Relationship 1, and wherein a microstructure comprising, in area %, 10-70% of ferrite, 10-50% of the sum of bainite and retained austenite, and a remainder of fresh martensite, wherein a ratio (Mb/Mt) is 60% or more, and methods of manufacturing these steel sheets. [Relationship 1] ([Si]+[C]×3)/([Mn]+[Mo]+[Cr])?0.18.
    Type: Application
    Filed: July 24, 2019
    Publication date: June 18, 2020
    Inventors: Chang Hyo SEO, Yeon Sang AHN, Joo Hyun RYU, Kyoo Young LEE, Won Pyo HONG