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).

  • Patent number: 10727477
    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: Grant
    Filed: October 28, 2016
    Date of Patent: July 28, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Ye Lin Kim, Ki Yeon Jo, Jung Keun Yoo, Je Young Kim, Sang Hoon Choy, Jong Heon Seol
  • Patent number: 10710315
    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: Grant
    Filed: May 31, 2017
    Date of Patent: July 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Adient Automotive Interiors Korea Inc.
    Inventors: Dong Keun Yoo, Chang Dong Kim, Eun Ho Choi
  • Patent number: 10701169
    Abstract: Disclosed herein are a method for operating a relation server and a system using the method. The method for operating the relation server for managing relations between machines includes generating, by the relation server, a capability set required to execute a command by analyzing the command, and grouping, by the relation server, machines that are to execute the command, among the machines, based on the generated capability set, and capability parameters and status parameters of respective machines that have been previously registered in the relation server or that are extractable by the relation server.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: June 30, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Sic Jeong, Sang-Keun Yoo, Yong-Woon Kim
  • Publication number: 20200199090
    Abstract: An organic compound having a tetraphenyl moiety and at least one fused hetero aryl moiety having at least one oxygen and/or sulfur on a ring and bonded to the tetraphenyl moiety directly or indirectly, and a light emitting diode and a light emitting device having the organic compound are disclosed. The organic compound has excellent thermal resistance property and hole mobility property. The organic compound can be incorporated into a hole transfer layer, an electron blocking layer and/or a charge generation layer of the light emitting diode. Therefore, the light emitting diode and light emitting device according to the present invention have decreased driving voltage and enhanced luminous efficiency.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 25, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: So-Young JANG, Hee-Jun PARK, Jeong-Dae SEO, Seon-Keun YOO, Ji-Cheol SHIN, Sang-Beom KIM
  • Publication number: 20200137908
    Abstract: According to an embodiment of the present disclosure, an electronic device may comprise a first housing including a first surface and a second surface facing in a direction opposite the first surface, a second housing including a third surface and a fourth surface facing in a direction opposite the third surface, a hinge disposed between the first housing and the second housing configured to provide rotational motion between the first housing and the second housing, and a flexible display disposed from the first surface of the first housing across the hinge to the third surface of the second housing, at least part of the flexible display configured to form a curved surface as the hinge structure is folded, wherein the hinge may include dual-axis hinges configured to provide a first rotational axis allowing the first housing to rotate about the second housing and a second rotational axis allowing the second housing to rotate about the first housing and slides coupled with the first housing and the second housi
    Type: Application
    Filed: December 26, 2019
    Publication date: April 30, 2020
    Inventors: Chung-Keun YOO, Jung-Jin KIM, Jong-Yoon KIM, Gi-Dae KIM, Young-Sun PARK, Moo-Hyun BAEK, Hyun-Woo SIM
  • Publication number: 20200126684
    Abstract: The present invention provides a composite conductive material having excellent dispersibility and a method for producing the same. In an embodiment, the method includes supporting a catalyst on surfaces of carbon particles; heat treating the catalyst in a helium or hydrogen atmosphere such that the catalyst penetrate the surfaces of the carbon particles and are impregnated beneath the surfaces of the carbon particles at a contact point between the carbon particles and the impregnated catalyst; and heating the carbon particles having the impregnated catalyst disposed therein in the presence of a source gas to grow carbon nanofibers from the impregnated catalyst to form a composite conductive material, wherein the source gas contains a carbon source, and wherein the carbon nanofibers extend from the contact point to above the surfaces of the carbon particles.
    Type: Application
    Filed: June 8, 2018
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Tea Gon Kim, Je Young Kim, Hak Yoon Kim, Ki Won Sung, Ye Lin Kim, Joo Yul Baek, Jung Keun Yoo, Jun Muk Lim, Seul Ki Kim
  • Patent number: 10619391
    Abstract: An apparatus for separating a vehicle door in an emergency, the apparatus being disposed to a hinge, which includes a hinge base disposed to a vehicle body, a hinge bracket disposed to a side of a door and overlapping with the hinge base, and a hinge bolt disposed through the hinge base and the hinge bracket, and which allows the door to be rotatable relative to the vehicle body, so that the hinge bracket is separated from the hinge base, may include a breaking member provided in the hinge bolt to break the hinge bolt when a hinge breaking signal is input to the breaking member from the outside, and a hinge bolt removal device configured to remove the hinge bolt from the hinge base and the hinge bracket when the hinge bolt is broken.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: April 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong-Keun Yoo, Sang-Heon Lee, Min-Soo Kim
  • Patent number: 10604980
    Abstract: An electronic device may comprise a first housing structure including a first conductive part and a second housing structure including a second conductive part. The hinge structure may include a metallic bracket including a first conductive part and a second conductive part and a first cylindrical through hole and a second cylindrical through hole, a first cylindrical insulating bushing at least partially positioned inside the first through hole, a second cylindrical insulating bushing at least partially positioned inside the second through hole, a first conductive shaft contacting the first conductive part and extending through the first insulating bushing, a second conductive shaft contacting the second conductive part and extending through the second insulating bushing, and a conductive connector contacting the first conductive shaft and the second conductive shaft and configured to form an electrical path from the first conductive part to the second conductive part.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: March 31, 2020
    Assignee: Samung Electronics Co., Ltd.
    Inventors: Chung Keun Yoo, Yong Hwa Han
  • Publication number: 20200041446
    Abstract: In a floating gate semiconductor nanostructure biosensor and a method for manufacturing the biosensor, the nanostructure biosensor includes a substrate, an insulating layer, a nanostructure, a source electrode and a drain electrode, a floating gate and a biological sensing material. The insulating layer is formed on the substrate. The nanostructure is protruded from the insulating layer. The source electrode and the drain electrode are formed on the insulating layer and dispose the nanostructure therebetween. The floating gate has a metal pattern or a polysilicon pattern, and extends with contacting the nanostructure. The biological sensing material has a first end combined with an immobile molecule on the floating gate, and a second end combined with a bio molecule.
    Type: Application
    Filed: March 29, 2018
    Publication date: February 6, 2020
    Applicant: OSONG MEDICAL INNOVATION FOUNDATION
    Inventors: Sung-Keun YOO, Seung-Wan SEO, Jeong-A KIM, Dong-Jun MOON
  • Patent number: 10551873
    Abstract: According to various embodiments of the present disclosure, a docking station includes a base housing comprising a first surface having a recessed portion, a second surface directed in an opposite direction to the first surface, and a side surface at least partially surrounding a space between the first surface and the second surface, a slide housing slidably mounted on the recessed portion to open and close at least a part of the recessed portion, and a connection member disposed on the recessed portion, in which as the slide housing slides, the connection member is hidden or exposed, and in a state where the at least the part of the recessed portion is opened, the slide housing is positioned inclined with respect to the first surface or the second surface. The docking station described above may be implemented variously depending on embodiments.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: February 4, 2020
    Assignees: Samsung Electronics Co., Ltd., R.F. Tech Co., Ltd.
    Inventors: Yong-Hwa Han, Sang-Jun Ahn, Chung-Keun Yoo, Ui-Jin Lee, Sang-Hyun Lee
  • Patent number: 10547101
    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: November 27, 2017
    Date of Patent: January 28, 2020
    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
  • Publication number: 20200020864
    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 26, 2019
    Publication date: January 16, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee YOON, Sung-Hoon JOO, Seon-Keun YOO, Ji-Cheol SHIN
  • Patent number: 10516154
    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: Grant
    Filed: June 29, 2017
    Date of Patent: December 24, 2019
    Assignee: 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
  • Patent number: 10516160
    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: Grant
    Filed: September 11, 2017
    Date of Patent: December 24, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Seul Ki Kim, Jong Heon Seol, Hee Soo Na, Chan Sub Lee, Hyung Suk Cho, Jung Keun Yoo, Je Young Kim
  • Publication number: 20190380218
    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 22, 2019
    Publication date: December 12, 2019
    Inventors: Hee Cheul MOON, Gi Dae KIM, Moo Hyun BAEK, Chung Keun YOO
  • Publication number: 20190378981
    Abstract: The present invention provides an electroluminescent compound of one of following formulas Formula 1 and Formula 2. Another aspect of the invention is an electroluminescent device including a first electrode; a second electrode facing the first electrode; and at least one organic material layer between the first and second electrodes, wherein one or more of the at least one organic material layer includes the electroluminescent compound.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 12, 2019
    Applicants: LG Display Co., Ltd., PnH Tech
    Inventors: Seon-Keun YOO, Hee-Jun PARK, Jeong-Dae SEO, Seo-Yong HYUN, Ha-Yeon KIM, Seok-Keun YOON, Sun-Gi KIM, In-Ho LEE
  • Patent number: 10468605
    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: Grant
    Filed: September 27, 2017
    Date of Patent: November 5, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seung-Hee Yoon, Sung-Hoon Joo, Seon-Keun Yoo, Ji-Cheol Shin
  • Publication number: 20190312259
    Abstract: A positive electrode for a lithium secondary battery includes a positive electrode current collector; a lower positive electrode active material layer disposed on at least one surface of the positive electrode current collector; and an upper positive electrode active material layer disposed on the lower positive electrode active material layer, wherein the lower positive electrode active material layer includes 90% or more of a sphere-type carbonaceous conductive material as a conductive material, the upper positive electrode active material layer includes 90% or more of a needle-type carbonaceous conductive material as a conductive material, and the content of the conductive material contained in the lower positive electrode active material layer is larger than the content of the conductive material contained in the upper positive electrode active material layer.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 10, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Joo-Yul Baek, Jong-Heon Seol, Ye-Lin Kim, Je-Young Kim, Jung-Keun Yoo
  • Patent number: 10430648
    Abstract: A method for processing content in an electronic device and an electronic device for doing the same are provided. The method includes acquiring content including at least one character, and performing at least one of classifying the acquired content into at least one of a plurality of categories by analyzing the acquired content or generating vector images including a vector image corresponding to the at least one character based on the acquired content and displaying at least a part of the vector images on a display functionally connected to the electronic device.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 1, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ki-Huk Lee, Seung-Cheol Lee, Jin-Hong Jeong, Tae-Gun Park, Sang-Keun Yoo, Sung-Ho Yoon
  • Patent number: 10433438
    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: May 17, 2018
    Date of Patent: October 1, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee Cheul Moon, Gi Dae Kim, Moo Hyun Baek, Chung Keun Yoo