Patents by Inventor Yong Seok Lee

Yong Seok 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).

  • Publication number: 20240136539
    Abstract: In an embodiment a method includes manufacturing a membrane-electrode-gas diffusion layer assembly (MEGA) fabric by bonding a gas diffusion layer (GDL) material to a first surface of a membrane-electrode assembly (MEA) fabric, injecting, by a steam injector, a liquid material to a first surface of the MEGA fabric while allowing the liquid material to be absorbed to the first surface of the MEGA fabric, supplying, by a gas injector, compressed gas to a second surface of the MEGA fabric in which the liquid material has been absorbed, inspecting, by a surface inspection device, a surface state of the MEGA fabric after supplying the compressed gas and, after inspecting, winding the MEGA fabric around a MEGA winding unit.
    Type: Application
    Filed: June 29, 2023
    Publication date: April 25, 2024
    Inventors: Han Hyung Lee, Yong Seok Lee, Sun II Kim, Seung Ah Yu
  • Publication number: 20240136504
    Abstract: An anode for a lithium secondary battery includes a anode current collector, a first anode mixture layer disposed on at least one surface of the anode current collector and including a first carbon-based active material and a silicon-based active material including a porous structure, and a second anode mixture layer disposed on the first anode mixture layer and including a second carbon-based active material and a silicon-based active material doped with magnesium.
    Type: Application
    Filed: August 20, 2023
    Publication date: April 25, 2024
    Inventors: Jeong A KIM, Yong Seok LEE, Jae Ram KIM
  • Publication number: 20240097125
    Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes cathode active material particles. The cathode active material particles include a lithium metal oxide particle containing nickel and having a mole fraction of cobalt of 0.02 or less among all elements except lithium and oxygen.
    Type: Application
    Filed: July 11, 2023
    Publication date: March 21, 2024
    Inventors: Yong Seok LEE, Jeong Hoon JEUN, Jae Ram KIM, Jae Yun MIN, Ki Joo EOM, Myung Ro LEE, Hyun Joong JANG, Je Nam CHOI
  • Publication number: 20240079568
    Abstract: A lithium secondary battery includes a cathode, a separator, and an anode including an anode current collector and an anode active material layer formed on the anode current collector and facing the cathode with the separator interposed therebetween. The anode active material layer includes a first anode active material layer formed on the anode current collector and including a first anode active material and a first anode binder containing a styrene-butadiene-based rubber (SBR) binder and a second anode active material layer formed on the first anode active material layer and including a second anode active material and a second anode binder containing a acryl-based binder. Each of the first anode active material and the second anode active material includes a silicon-based active material and a graphite-based material and contains 2 to 9.5 parts by weight of silicon with respect to the 100 part by weight of the graphite-based active material.
    Type: Application
    Filed: October 25, 2023
    Publication date: March 7, 2024
    Inventors: Yong Seok LEE, Jung Hwan KIM, Myung Ro LEE, Sang Won BAE, Ji Hee BAE
  • Publication number: 20240047661
    Abstract: Provided are a negative electrode for a lithium secondary negative electrode battery including: a current collector; a first negative electrode active material layer disposed on the current collector and including a silicon-based active material, a first graphite-based active material, and a linear conductive material; and a second negative electrode active material layer disposed on the first negative electrode active material layer and including a second graphite-based active material. The first graphite-based active material has a carbon coating layer on at least a part of a surface. Also provided is a lithium secondary battery including the negative electrode.
    Type: Application
    Filed: October 18, 2023
    Publication date: February 8, 2024
    Inventors: Hyo Mi Kim, Yong Seok Lee
  • Patent number: 11876217
    Abstract: A lithium secondary battery includes a cathode, a separator, and an anode including an anode current collector and an anode active material layer formed on the anode current collector and facing the cathode with the separator interposed therebetween. The anode active material layer includes a first anode active material layer formed on the anode current collector and including a first anode active material and a first anode binder containing a styrene-butadiene-based rubber (SBR) binder and a second anode active material layer formed on the first anode active material layer and including a second anode active material and a second anode binder containing a acryl-based binder. Each of the first anode active material and the second anode active material includes a silicon-based active material and a graphite-based material and contains 2 to 9.5 parts by weight of silicon with respect to the 100 part by weight of the graphite-based active material.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: January 16, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Yong Seok Lee, Jung Hwan Kim, Myung Ro Lee, Sang Won Bae, Ji Hee Bae
  • Publication number: 20240006606
    Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes a cathode active material and a conductive material ID/IG is in a range from 0.5 to 1.25 in a Raman spectrum of the cathode active material layer. The cathode active material includes lithium metal oxide particles containing nickel and manganese and having a content of cobalt of less than 2 mol % among all elements except for lithium and oxygen.
    Type: Application
    Filed: June 20, 2023
    Publication date: January 4, 2024
    Inventors: Yong Seok LEE, Jae Ram KIM, Ji Won NA, Sang Won BAE, Yeon Hwa SONG, Ki Joo EOM, Myung Ro LEE, Jae Yeong LEE, Hyun Joong JANG
  • Publication number: 20230268506
    Abstract: An anode for a secondary battery includes a first anode mixture layer disposed on an anode current collector and a second anode mixture layer disposed on a surface of the anode, wherein the first and second anode mixture layers include a graphite-based anode active material of graphite secondary particles, at least the second anode mixture layer includes a graphite-based anode active material of graphite primary particles, and a content [A2] of graphite primary particles included in the second anode mixture layer is greater than a content [A1] of graphite primary particles included in the first anode mixture layer.
    Type: Application
    Filed: February 20, 2023
    Publication date: August 24, 2023
    Inventors: Hyun Joong JANG, Jae Ram KIM, Yong Seok LEE
  • Publication number: 20230246169
    Abstract: An anode active material for a lithium secondary battery according to embodiments of the present invention includes a carbon-based active material and a silicon-based active material including silicon-based active material particles having a particle size distribution in a range from 1 ?m to 19 ?m. A lithium secondary battery having improved life-span and rapid charge/discharge properties at room temperature is provided.
    Type: Application
    Filed: February 2, 2023
    Publication date: August 3, 2023
    Inventors: Yong Seok LEE, Jae Ram KIM, Sang Won BAE, Yeon Hwa SONG, Ki Joo EOM, Myung Ro LEE, Jae Yeong LEE, Hyun Joong JANG
  • Publication number: 20230244111
    Abstract: A display device includes a substrate, a first data fan-out line disposed on the substrate, a first data line disposed on the first data fan-out line and comprising a repair area overlapping the first data fan-out line, a color filter disposed on the first data line and overlapping the repair area, and a connection electrode disposed in the repair area and being in direct contact with the first data fan-out line and the first data line.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 3, 2023
    Inventors: Hyeon Cheol KANG, Soo San MUN, Yong Seok LEE
  • Patent number: 11650466
    Abstract: A display device includes a substrate including a display area and a non-display area disposed around the display area; a fan-out unit disposed in the non-display area and including a first pad unit and a first fan-out line electrically connected to the first pad unit; a first signal line disposed on a different layer from the first fan-out line and including a first area overlapping the first fan-out line; a first switching element disposed on the display area and electrically connected to the first signal line and a first pixel electrode; and a color filter overlapping the first area.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: May 16, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeon Cheol Kang, Soo San Mun, Yong Seok Lee
  • Publication number: 20220407052
    Abstract: Lithium secondary batteries for improving life span and resistance properties are disclosed. In an aspect, a cathode composition for a lithium secondary battery includes a cathode active material that includes a first cathode active material particle having a secondary particle shape and a second cathode active material particle having a single particle shape, and a conductive material including a linear-type conductive material.
    Type: Application
    Filed: June 9, 2022
    Publication date: December 22, 2022
    Inventors: Yong Seok LEE, Jae Ram KIM, Jung Hwan KIM, Jae Yun MIN, Sang Won BAE, Myung Ro LEE, Jae Yeong LEE, Hyun Joong JANG
  • Patent number: 11485029
    Abstract: The present invention relates to a working robot. According to one embodiment of the present invention, the working robot comprises: a body; a plurality of traveling units connected to the body, having supporting members and traveling members rotatably connected to the supporting members, and provided so as to be travelable with respect to the ground; and a plurality of adjusting units connecting the body and the traveling units, and provided to enable the relative positions of the traveling units to the body to be adjusted, wherein the plurality of traveling units are traveled and the plurality of adjusting units are adjusted so as to maintain the horizontal state of the body.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: November 1, 2022
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
    Inventors: Chang Soo Han, Yong Seok Lee, Sang Ho Kim, Dong Ik Sun, Sang Keun Lee, Jin Sung Park, Min Ji Kim
  • Publication number: 20220328827
    Abstract: Provided are a negative electrode for a secondary battery including: a current collector; a first coating layer including a point-type conductive material and a binder, formed on the current collector; and a second coating layer including a silicon-based active material, formed on the first coating layer, and a lithium secondary battery including the same.
    Type: Application
    Filed: December 30, 2021
    Publication date: October 13, 2022
    Inventors: Yong Seok Lee, Sang Won Bae, Myung Ro Lee, Jae Ram Kim, Jung Hwan Kim
  • Patent number: 11459728
    Abstract: Disclosed are an apparatus and method for controlling a remote-controlled excavator for preventing overload. The apparatus for controlling a remote-controlled excavator according to an embodiment of the present invention comprises: inertial sensors provided in the excavator; a communication unit for receiving a remote control signal from a remote control apparatus; and a control unit for driving the excavator in response to the remote control signal, wherein the control unit stops driving the excavator when a difference between an expected posture of the excavator estimated on the basis of the remote control signal and an actual posture of the excavator measured by using the inertial sensors exceeds an allowable value.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: October 4, 2022
    Inventors: Chang Soo Han, Sang Ho Kim, Yong Seok Lee, Dong Ik Sun, Sang Keun Lee
  • Publication number: 20220310991
    Abstract: An anode for a secondary battery includes an anode current collector, and an anode active material layer including a first anode active material layer and a second anode active material layer sequentially stacked from a surface of the anode current collector. Each of the first anode active material layer and the second anode active material layer includes a carbon-based active material and a silicon-based active material as an anode active material, and a carbon nanotube as a conductive material. A content of the silicon-based active material in the second anode active material layer is greater than a content of the silicon-based active material in the first anode active material layer. A Raman R value of the carbon nanotube included in the second anode active material layer is smaller than a Raman R value of the carbon nanotube included in the first anode active material layer.
    Type: Application
    Filed: January 6, 2022
    Publication date: September 29, 2022
    Inventors: Yong Seok Lee, Jae Yun Min, Jae Ram Kim, Jung Hwan Kim, Sang Won Bae, Ji Hee Bae, Myung Ro Lee, Jae Yeong Lee
  • Patent number: 11452459
    Abstract: An electronic device according to an embodiment of the present invention may comprise: a housing comprising a first glass plate, a second glass plate facing in the opposite direction to the first glass plate, and a side member surrounding the space between the first glass plate and the second glass plate, the second plate comprising an outer surface facing in the opposite direction to the first plate and an inner surface facing the first plate; an inner middle plate positioned between the first plate and the second plate; a touch screen display positioned between the middle plate and the first plate; an opaque layer comprising a first opening and a second opening positioned within 150 mm from the first opening, the opaque layer being directly or indirectly attached to the inner surface of the second plate comprising a hole overlapping with the first opening but comprising no hole overlapping with the second opening; a camera assembly partially positioned inside the hole of the second plate and the first openi
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: September 27, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Su Jung, Yong-Seok Lee, Seung-Jae Bae, Jong-Kyun Im, Jin-A Mock, Jin-Young Park
  • Publication number: 20220285690
    Abstract: Provided is a positive electrode for a lithium secondary battery including: a current collector; and a positive electrode active material layer including a positive electrode active material and carbon nanotubes, placed on the current collector, wherein the carbon nanotubes have ID/IG of 0.10 or less, the ID/IG being a ratio of a peak intensity of a D band divided by a peak intensity of a G band in a Raman spectrum.
    Type: Application
    Filed: March 8, 2022
    Publication date: September 8, 2022
    Inventors: Yong Seok LEE, Jae Ram KIM, Jung Hwan KIM, Jae Yun MIN, Sang Won BAE, Ji Hee BAE, Myung Ro LEE, Jae Yeong LEE
  • Publication number: 20220274939
    Abstract: Disclosed are a dual modulator of mGluR5 and 5-HT2AR (5-HT2A receptor), and use thereof. More specifically, disclosed are a compound which acts as modulator of mGluR5 and an antagonist of 5-HT2AR at the same time, and use thereof as therapeutic agent for pain.
    Type: Application
    Filed: July 28, 2021
    Publication date: September 1, 2022
    Inventors: Dae Kyu CHOI, Hyo Jin KIM, Mi Seon BAE, Jin CHOI, Hyun Jin HEO, Yong Seok LEE, Geon Ho LEE, Mi Yon SHIM, Jin Sun PARK, Han Mi LEE
  • Patent number: 11362452
    Abstract: A multi-connection device according to various embodiments of the present invention may comprise: a housing; and a first or a second connection terminal for electrical connection, the first and second connection terminals protruding in first and second directions from the housing, respectively. Various other embodiments may also be possible.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 14, 2022
    Assignees: Samsung Electronics Co., Ltd, Hyupjinconnector Co., Ltd
    Inventors: Sung-Hyup Lee, Jae-Woon Lee, Yong-Seok Lee, Yang-Jean Park, Jin-Woo Park