Patents by Inventor Keun Yoo

Keun Yoo 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).

  • CONDUCTIVE MATERIAL DISPERSED LIQUID AND LITHIUM SECONDARY BATTERY MANUFACTURED USING SAME
    Publication number: 20180175370
    Abstract: The present invention provides a conductive material dispersed liquid, including: a conductive material which includes bundle-type carbon nanotubes; a dispersant; a dispersion medium, where a phase angle is in a range of 3° to 18° when measured by a rheometer at a frequency of 1 Hz; and a lithium secondary battery manufactured using the conductive material dispersed liquid. The conductive material dispersed liquid has high solid-like properties, and thus allows the formation of an electrode active material layer having a uniform thickness with no concern for collapse or occurrence of cracks during manufacture of an electrode, and thereby can improve the performance characteristics, particularly capacity characteristics, of a battery.
    Type: Application
    Filed: October 28, 2016
    Publication date: June 21, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Ye Lin Kim, Ki Yeon Jo, Jung Keun Yoo, Je Young Kim, Sang Hoon Choy, Jong Heon Seol
  • ORGANIC COMPOUND AND LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE USING THE SAME
    Publication number: 20180166647
    Abstract: The present disclosure relates to an organic compound, a light emitting diode and an organic light emitting diode display device using the same. The organic compound is represented by a following chemical formula 1.
    Type: Application
    Filed: November 3, 2017
    Publication date: June 14, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ji-Cheol SHIN, Sung-Hoon JOO, Seon-Keun YOO, Seung-Hee YOON
  • Flexible display electronic device
    Patent number: 9992888
    Abstract: A portable electronic device is provided. The portable electronic device includes a first housing including a first surface and a second surface a second housing including a third surface and a fourth surface, and a hinge. The hinge includes a hinge shaft, a sliding device including a portion configured to slide to an inside or an outside of the second housing to be introduced, or slide from the inside or the outside of the second housing in a specific direction to be extracted in correspondence to a hinge operation of the second housing, and a multi-bar disposed between the first surface and the fourth surface and including multi-bar units to be spread or bent in correspondence to a hinge operation of the second housing.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: June 5, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee Cheul Moon, Gi Dae Kim, Moo Hyun Baek, Chung Keun Yoo
  • APPARATUS FOR FORMING PLASTIC FUEL TANK FOR VEHICLE
    Publication number: 20180147771
    Abstract: Disclosed is an apparatus for forming a plastic fuel tank for a vehicle, wherein when a parison is formed into semi-finished products having a shape of the fuel tank, the semi-finished products are formed by press forming using first and second molds and an intermediate mold. The semi-finished products are formed without using a blow molding process.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 31, 2018
    Applicant: DONG HEE INDUSTRIAL CO., LTD.
    Inventor: Jung Keun YOO
  • Method that Forms Pattern on Fabric Member and Fixes Pattern on Trim
    Publication number: 20180141281
    Abstract: A method can be used to attach a fabric member to a trim while forming a pattern in the fabric member. A trim has trim grooves formed in one side of the trim and a fabric member has a foam formed in one side of a skin material of the fabric member. A bonding member is coated to an outer surface of the foam and the fabric member is heated where the bonding member is coated. The heated fabric member is placed on the side of the trim where the trim grooves are formed. The fabric member is fixed to the trim by inserting edges of the fabric member into the trim grooves using insertion blades while pattern protrusions formed in a compression jig form a pattern by pressing the skin material of the fabric member.
    Type: Application
    Filed: May 31, 2017
    Publication date: May 24, 2018
    Inventors: Dong Keun Yoo, Chang Dong Kim, Eun Ho Choi
  • HOT-MELT ADHESIVE COMPOSITION, PREPARATION METHOD THEREOF AND VEHICLE HEADLAMP
    Publication number: 20180118986
    Abstract: A hot-melt adhesive composition comprises 35 wt % to 40 wt % of petroleum resin, 10 wt % to 14 wt % of polyester elastomer resin, 10 wt % to 14 wt % of ethylene vinyl acetate resin, 14 wt % to 19 wt % of polyether polyol, 15 wt % to 21 wt % of polyester polyol, 8 wt % to 10 wt % of methylene diphenyl diisocyanate, and 0.1 wt % to 0.5 wt % of an amine catalyst, wherein the hot-melt adhesive composition has a melt viscosity of 20,000 cps to 50,000 cps as measured at 150° C.
    Type: Application
    Filed: September 20, 2017
    Publication date: May 3, 2018
    Inventors: Min Keun Yoo, Jung Hwan Lee, Seong Ho Kim, Dongjoon Kim
  • ORGANIC COMPOUND, AND ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180118742
    Abstract: An embodiment of the present invention provides an organic compound represented by: and an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention includes a phenanthroline core, which has a nitrogen atom of a relatively electron rich sp2 hybrid orbital, and a phosphine oxide moiety, which has an excellent electron transporting property and an excellent thermal stability. The electron transporting property of the organic compound of the present invention is improved based on the chemical structure of the organic compound. Accordingly, when the organic compound is used for the organic light emitting diode and the organic light emitting display device, the driving voltage is reduced, and the lifetime and the emitting efficiency are improved.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 3, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Sung-Hoon JOO, Seon-Keun YOO, Seung-Hee YOON, Ji-Cheol SHIN
  • MOTOR-GENERATED ASSIST TORQUE CONTROL FOR HYBRID VEHICLES
    Publication number: 20180105047
    Abstract: A hybrid vehicle is provided. The hybrid vehicle includes an acceleration pedal, an engine configured to generate an engine torque based on a position of the acceleration pedal, an electronic control unit communicatively coupled to the engine and configured to calculate a target torque based on the position of the acceleration pedal, and estimate a motor-generated (MG)-assist torque based on difference between the target torque and the engine torque, a motor generator communicatively coupled to the electronic control unit and configured to generate the estimated MG-assist torque, and a power distribution unit configured to deliver the generated MG-assist torque combined with the engine torque to one or more wheels.
    Type: Application
    Filed: October 17, 2016
    Publication date: April 19, 2018
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Dae Keun Yoo, Hiroki Sato, Jordan Choby, Shingo Eto
  • ANTENNA OF ELECTRONIC DEVICE
    Publication number: 20180090823
    Abstract: An antenna of an electronic device is provided, which includes a radiator including at least part of a metal housing of the electronic device; a capacitor connected to the radiator; a feeding part connected to the radiator; and a ground part connected to the capacitor.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 29, 2018
    Inventors: Soon Ho Hwang, Ui Chul Jeong, Sung Koo Park, Chan Kyu An, Joon Ho Byun, Sang Keun Yoo, Yoon Jae Lee, Jin Woo Jung, Jae Bong Chun
  • ORGANIC COMPOUND, AND ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180090686
    Abstract: The present invention provides an organic compound represented by: an organic light emitting diode and an organic light emitting display device using the organic compound. The organic compound of the present invention is capable of reducing a driving voltage of an organic light emitting diode and improving an emitting efficiency and a lifetime of the organic light emitting diode and the organic light emitting display device including the organic compound.
    Type: Application
    Filed: September 27, 2017
    Publication date: March 29, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Seung-Hee YOON, Sung-Hoon JOO, Seon-Keun YOO, Ji-Cheol SHIN
  • ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20180076451
    Abstract: An electrode for a lithium secondary battery includes a current collector, primer layer formed on a side of the current collector and includes a first conductive agent, a first binder and a first dispersant. Further, an active material layer is formed on a side of the primer layer disposed opposite to the current collector and includes an active material. Additionally, the lithium secondary battery includes a positive electrode, a negative electrode or both, a separator disposed between the positive electrode and the negative electrode and an electrolyte. The structural stability and adhesion of the electrode is improved, a ratio of a binder in the active material layer is reduced and the internal resistance is reduced.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 15, 2018
    Inventors: Seul Ki Kim, Jong Heon Seol, Hee Soo Na, Chan Sub Lee, Hyung Suk Cho, Jung Keun Yoo, Je Young Kim
  • FLEXIBLE DISPLAY ELECTRONIC DEVICE
    Publication number: 20180077810
    Abstract: A portable electronic device is provided. The portable electronic device includes a first housing including a first surface and a second surface a second housing including a third surface and a fourth surface, and a hinge. The hinge includes a hinge shaft, a sliding device including a portion configured to slide to an inside or an outside of the second housing to be introduced, or slide from the inside or the outside of the second housing in a specific direction to be extracted in correspondence to a hinge operation of the second housing, and a multi-bar disposed between the first surface and the fourth surface and including multi-bar units to be spread or bent in correspondence to a hinge operation of the second housing.
    Type: Application
    Filed: August 16, 2017
    Publication date: March 15, 2018
    Inventors: Hee Cheul MOON, Gi Dae KIM, Moo Hyun BAEK, Chung Keun YOO
  • Method for operating machines and system using the same
    Patent number: 9900399
    Abstract: Disclosed herein are a method for operating machines and a system using the method, which can manage relations required in order to execute commands. The method includes generating a capability set required to execute the command by analyzing the command, and determining whether to participate in a machine group to execute the commands based on the generated capability set and capability parameters and status parameters of the machine.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: February 20, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Sic Jeong, Sang-Keun Yoo, Jin-Young Lee
  • Array substrate and liquid crystal display module including TFT having improved mobility and method of fabricating the same
    Patent number: 9881944
    Abstract: A method of fabricating an array substrate for a liquid crystal display device can include forming a gate line and a gate electrode, and a gate insulating layer; forming an active layer on the gate insulating layer and an ohmic contact layer on the active layer; forming a data line and source and drain electrodes; forming a passivation layer on the source and drain electrodes; and forming a pixel electrode on the passivation layer, in which the ohmic contact layer covers an entire top surface of the active layer between the source and drain electrodes; forming a metallic layer on the gate insulating layer and the ohmic contact layer; etching the metallic layer to faun the data line, and the source drain electrodes, in which a silicide layer is formed on the ohmic contact layer only in the space between the source and drain electrodes; and removing the silicide layer.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: January 30, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Cheol-Se Kim, Jae-Hyung Jo, Duk-Keun Yoo
  • Electronic devices
    Patent number: 9874908
    Abstract: An electronic device capable of maintaining an angle between two display units at a certain angle, without any hinge structure is provided. The electronic device includes a display unit including a first display unit and a functional unit spaced apart from each other, the functional unit being equipped with an electronic component, a cover unit including a first cover part and a second cover part, to which the first display unit and the functional unit are respectively attached, and a connection unit including a shape-preserving member, which is configured to allow the display unit and the functional unit to be maintained at a certain angle, when an angle between the first cover part and the second cover part is changed by an external force.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 23, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang Soo Han, Chung Keun Yoo, Jin Hyuk Choi, Byoung Soo Lee, Jae Woo Lee, Ji Hoon Park
  • POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING THE SAME
    Publication number: 20180006289
    Abstract: Disclosed is a positive electrode for a lithium secondary battery which uses a positive electrode active material containing secondary particles with a relatively weak particle strength to improve the adhesion between a positive electrode mixture layer and a current collector, and the positive electrode includes a positive electrode current collector; a primer coating layer including a first polymer binder and a first conductive material, having surface roughness (Ra) of 85 nm to 300 nm and formed on at least one surface of the positive electrode current collector; and a positive electrode mixture layer formed on an upper surface of the primer coating layer and including a positive electrode active material containing secondary particles with a compressive breaking strength of 1 to 15 MPa, a second polymer binder and a second conductive material.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 4, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Jong-Heon Seol, Jin-Young Son, Hyung-Suk Cho, Sin-Young Jung, Yoon-Jung Choi, Yo-Jin Kim, Je-Young Kim, Sung-Joon Park, Jung-Keun Yoo, Sang-Hoon Choy
  • ORGANIC COMPOUND, AND ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20180006243
    Abstract: An embodiment of the present invention provides an organic compound represented by following Formula: wherein each of X1 to X5 is independently selected from a carbon atom (C) or a nitrogen atom (N), and at least two or three of X1 to X5 are N, wherein each of R1 and R2 is independently selected from a substituted or non-substituted aryl group or a substituted or non-substituted heteroaryl group, and “a” is an integer between zero (0) to 3, and wherein each of L1 and L2 is independently selected from a substituted or non-substituted arylene group or a substituted or non-substituted heteroarylene group, and “b” is zero (0) or 1. The present invention also provides an organic light emitting diode and an organic light emitting display device including the organic compound.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 4, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seon-Keun YOO, Sung-Hoon JOO, Seung-Hee YOON, Ji-Cheol SHIN
  • Antenna of electronic device
    Patent number: 9859607
    Abstract: An antenna of an electronic device is provided, which includes a radiator including at least part of a metal housing of the electronic device; a capacitor connected to the radiator; a feeding part connected to the radiator; and a ground part connected to the capacitor.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: January 2, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Soon Ho Hwang, Ui Chul Jeong, Sung Koo Park, Chan Kyu An, Joon Ho Byun, Sang Keun Yoo, Yoon Jae Lee, Jin Woo Jung, Jae Bong Chun
  • ALL-SOLID ION BATTERY
    Publication number: 20170365877
    Abstract: The present invention provides an all-solid ion battery having improved stability and power characteristics and comprising: a powder-form solid electrolyte; a powder-form electrode active material; a first conductive polymer coating film coated on at least a portion of the solid electrolyte and capable of transporting ions; and a second conductive polymer coating film coated on at least a portion of the electrode active material and capable of transporting ions and electrons.
    Type: Application
    Filed: September 23, 2015
    Publication date: December 21, 2017
    Inventors: Ki Suk KANG, In Sang HWANG, Yeon Sik JUNG, Jung Keun YOO, Jae Beom JEON, Ki Ung JEON
  • ORGANIC COMPOUND AND LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE USING THE SAME
    Publication number: 20170346012
    Abstract: The present disclosure relates to an organic compound, a light emitting diode and an organic light emitting diode display device using the same. The organic compound is represented by a following chemical formula 1. This organic compound has the advantages in the thermal stability, the emission property, the color purity, the hole transport property and the hole movement property, and thus the lifetime, the emission efficiency and the emission property of the LED using the same are improved.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 30, 2017
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ki-Dong KOO, Jung-Keun KIM, Do-Han KIM, Jeong-Dae SEO, Seon-Keun YOO, Seung-Hee YOON, Ji-Cheol SHIN