Patents by Inventor Dong-Hwan Kim

Dong-Hwan Kim 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: 20200251853
    Abstract: An inlet apparatus includes: a locking pin; a holder configured to accommodate the locking pin; and a first electromagnet provided at a lower portion of the holder. The first electromagnet includes a lower coil for generating a repulsive force or an attractive force in a vertical direction with respect to the locking pin. The inlet apparatus also includes a second electromagnet provided at a side of the holder, the second electromagnet including a side coil for fixing the locking pin. The inlet apparatus also includes a controller configured to control a current of the lower coil of the first electromagnet and a current of the side coil of the second electromagnet.
    Type: Application
    Filed: August 13, 2019
    Publication date: August 6, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Dong-Hwan Kim
  • Patent number: 10732775
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Publication number: 20200231443
    Abstract: An embodiment of the present invention provides a method for manufacturing multi-wall carbon nanotubes, the method comprising the steps of: (a) dissolving a metal precursor in a solvent to prepare a precursor solution; (b) perform thermal decomposition while spraying the precursor solution into a reactor, thereby forming a catalyst powder; and (c) introducing the catalyst powder into a fluidized-bed reactor heated to 600-900° C. and spraying a carbon-based gas and a carrier gas to synthesize multi-wall carbon nanotubes from the catalyst powder, wherein steps (a) to (c) are performed in a continuous type and wherein the catalyst powder contains metal components according to equation 1 below. <Equation 1> Ma:Mb=x:y, wherein Ma represents at least two metals selected from Fe, Ni, Co, Mn, Cr, Mo, V, W, Sn, and Cu; Mb represents at least one metal selected from Mg, Al, Si, and Zr; x and y each represent the molar ratio of Ma and Mb; and x+y=10, 2.0?x?7.5, and 2.5?y?8.0.
    Type: Application
    Filed: March 2, 2018
    Publication date: July 23, 2020
    Inventors: Sang Hyo RYU, Hyun Kyung SUNG, Chung Heon JEONG, Dong Hwan KIM
  • Publication number: 20200212456
    Abstract: Disclosed is a fuel cell with improved thermal distribution in a stack including two more unit cells stacked therein. The fuel cell includes a stack including the two more unit cells and separators each having manifolds formed through four sides thereof, a first chamber having an internal space so as to receive air and fuel from the outside and to transfer the air and fuel to a second chamber and so as to receive the air and fuel discharged from the stack and to discharge the air and fuel to the outside, a second chamber having an internal space so as to receive the air and fuel from the first chamber and to transfer the air and fuel to the stack, and a connecting part connecting the first chamber to the second chamber so as to allow the air and fuel to flow to the second chamber from the first chamber.
    Type: Application
    Filed: August 29, 2019
    Publication date: July 2, 2020
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jong Ho LEE, Kyung Joong YOON, Sang Hyeok LEE, Dong Hwan KIM, Jong Sup HONG, Yong Gyun BAE
  • Patent number: 10680337
    Abstract: An antenna device for an electronic device for wireless communication is provided. The antenna device includes an antenna area connected to a feeding line and a ground line, such that the antenna area is configured to transmit/receive a signal of a first frequency band; and a branching feeding pattern branching from the feeding line and connected to one side of the antenna area, such that the branching feeding pattern is configured to enable the antenna area to transmit/receive a signal of a second frequency band.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: June 9, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Tae Gyu Kim, Jin Kyu Bang, Hae Yeon Kim, Chong O Yoon, Dong Hwan Kim
  • Patent number: 10654419
    Abstract: A luggage compartment screen apparatus of a vehicle may include a moving housing movable along guide rails; a push mechanism to be drawn out or drawn in from the moving housing toward the luggage compartment and be rotatable and formed to have a step in a rotation direction thereof; and a locking mechanism rotatably disposed on the moving housing to be configured to be selectively locked to the guide rail, formed to have a step in a drawn-out and drawn-in direction of the push mechanism, and having a stepped portion in contact with a stepped portion of the push mechanism to be rotated to be locked to the guide rail at the time of a drawn-in operation or a rotation operation of the push mechanism and be rotated to be separated from the guide rail at the time of a drawn-out operation of the push mechanism.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: May 19, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corp
    Inventors: Jang Hyun Cho, Won Jong Lee, Hee Cheol Kim, Dong Hwan Kim, Dong Ha Lee
  • Patent number: 10608324
    Abstract: An electronic device includes a metal housing, a conductive member disposed adjacent to the metal housing, a plurality of ground parts including a first ground part electrically connected with a first point of the conductive member and a second ground part electrically connected with a second point of the conductive member, a ground plate electrically connected with the metal housing and electrically connected with the conductive member via the plurality of ground parts, and a feeding part electrically connected with the conductive member.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: March 31, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Ha Lee, Kyung Jae Lee, Jae Ho Lim, Dong Hwan Kim, Young Jun Kim, Un Kim, Jong Hoon Kim, Min Seok Park
  • Publication number: 20200090640
    Abstract: Provided is a system for generating speech recognition training data, the system including: a speech data processing module receiving speech data from a user terminal and performing data preprocessing on the received speech data; an auto speech recognition (ASR) interfacing module transmitting the preprocessed speech data to a plurality of ASR engines and acquiring a confidence score and transcription data of the speech data from the plurality of ASR engines; an ASR result evaluating module determining whether the speech data and the transcription data match each other; and a training data managing unit generating training data as a pair of the speech data and the transcription data determined to match each other.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 19, 2020
    Applicant: 42 Maru Inc.
    Inventors: Dong Hwan KIM, Hyun Ok KIM, You Kyung KWON
  • Publication number: 20200089768
    Abstract: Provided is an artificial intelligence (AI) answering system including a user question receiver configured to receive a user question from a user terminal; a first question extender configured to generate a question template by analyzing the user question and determine whether the user question and the generated question template match; a second question extender configured to generate a similar question template by using a natural language processing and a deep learning model when the user question and the generated question template do not match; a training data builder configured to generate training data for training the second question extender by using an neural machine translation (NMT) engine; and a question answering unit configured to transmit a user question result derived through the first question extender or the second question extender to the user terminal.
    Type: Application
    Filed: November 8, 2018
    Publication date: March 19, 2020
    Inventor: Dong Hwan Kim
  • Publication number: 20200078772
    Abstract: Provided is a catalyst for manufacturing multi-wall carbon nanotubes, the catalyst including metal components according to <Equation> Ma:Mb=x:y, and having a hollow structure with a thickness of 0.5-10 ?m. In the above equation, Ma represents at least two metals selected from Fe, Ni, Co, Mn, Cr, Mo, V, W, Sn, and Cu; Mb represents at least one metal selected from Mg, Al, Si, and Zr; x and y each represent the molar ratio of Ma and Mb; and x+y=10, 2.0?x?7.5, and 2.5?y?8.0.
    Type: Application
    Filed: March 2, 2018
    Publication date: March 12, 2020
    Inventors: Sang Hyo RYU, Hyun Kyung SUNG, Chung Heon JEONG, Dong Hwan KIM
  • Publication number: 20200075966
    Abstract: The present disclosure provides a separator for a fuel cell, including a central part with a rectangular shape, and a surrounding part disposed to surround the central part, wherein the surrounding part includes an outlet manifold positioned at a pair of edges of the central part, which are opposed each other, and an inlet manifold positioned along a side of the central part to be adjacent to another edge except for the pair of edges at which the outlet manifold is positioned, and the central part includes a plurality of guide patterns that are spaced apart from each other to guide fluids introduced through the inlet manifold toward the outlet manifold.
    Type: Application
    Filed: February 27, 2019
    Publication date: March 5, 2020
    Applicants: Korea Institue Of Science And Technology, Industry-Academic Cooperation Foundation , Yonsei University
    Inventors: Jong Ho LEE, Kyung Joong Yoon, Sang Hyeok Lee, Dong Hwan Kim, Jong Sup Hong, Yong Gyun Bae
  • Publication number: 20200060923
    Abstract: The present invention relates to a mask having a massage function and a mask system including the same. According to the present invention, the mask having the massage function comprises: a mask body; and a massage unit coupled to the mask body, wherein the massage unit includes: a massage pad; and a pad driving part for allowing the massage pad to move in one direction while pressing the skin of a user.
    Type: Application
    Filed: November 6, 2017
    Publication date: February 27, 2020
    Inventors: Dong Hwan KIM, Tae Sik SHON
  • Patent number: 10547686
    Abstract: A display apparatus having a communicator configured to communicate with an external device; a display; and a controller configured to receive schedule information about reproduction of a plurality of pieces of content from the external device, determine whether second content to be reproduced following first content is completely downloadable until a reproducing completion time of the first content based on the received schedule information, download the second content while reproducing the first content if it is determined that the second content is completely downloadable, and start downloading the second content instead of reproducing first content if it is determined that the second content is not completely downloadable.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: January 28, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-eon Kim, Himanshu Anand, Se-hee Kang, Dong-hwan Kim, Tae-woon Jeong, Pepalavenkata Sunil
  • Publication number: 20200024863
    Abstract: The present invention relates to a tent pole, and each of a first pole and a second pole forming a tent pole according to an aspect of the present invention includes a main pipe, an expanded pipe portion having an increased internal diameter from one end of the main pipe, an insert connector which is insertion-coupled to the other end of the main pipe and includes one portion exposed at an outside of the main pipe, the other end of the main pipe of the second pole is inserted into the expanded pipe portion of the first pole, and the insert connector of the second pole passes through the expanded pipe portion and is inserted into the main pipe of the first pole at a predetermined depth.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 23, 2020
    Inventors: In Soo JUNG, Dong Hwan KIM
  • Publication number: 20190385790
    Abstract: Disclosed is a method for producing a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth magnet and a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth magnet produced thereby, and more particularly to a method for producing a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth sintered magnet having a reduced content of a heavy rare earth element, in which a hydrogen compound of a heavy rare earth is mainly used as a diffusion material in the production of the grain-boundary-diffused magnet, so that a product having uniform and stable quality can be produced, and the coercive force of the magnet can be increased while minimizing the amount of heavy rare earth used in the production of the grain-boundary-diffused magnet, by solving the problem that the heavy rare earth is not uniformly diffused into the magnet, and a heavy rare earth grain-boundary-diffused RE-Fe—B-based rare earth magnet produced thereby.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 19, 2019
    Applicant: Star group Ind. Co., Ltd.
    Inventors: Koon Seung KONG, Dong Hwan KIM
  • Patent number: 10486334
    Abstract: A method of preparing a plastic substrate for electrostatic painting includes preparing a carbon nanotube pellet by molding carbon nanotube powder. The method also includes preparing a conductive resin composition by mixing 0.1 to 10 wt % of the carbon nanotube pellet, 0.1 to 20 wt % of carbon black, and 70 to 99 wt % of a thermoplastic polymer resin. The method further includes molding the conductive resin composition.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: November 26, 2019
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Ho Soo Hwang, Wan Sung Lee, Dong Hwan Kim
  • Patent number: 10490326
    Abstract: Disclosed is a method of producing a rare earth permanent magnet including preparing a NdFeB sintered magnet, coating a surface of the NdFeB sintered magnet with a grain boundary diffusion material including R hydrate or R fluoride, and RaMb or M, to form a grain boundary diffusion coating layer, and diffusing the grain boundary diffusion material into a grain boundary of the NdFeB sintered magnet by heat treatment, wherein M is a metal having a melting point higher than a heat treatment temperature during the diffusion, R is a rare earth element, and a and b each represent atomic percentages which satisfy the following Equations (1) and (2): 0.1<a<99.9??(1) a+b=100??(2).
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: November 26, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Star Group Ind. Co., Ltd.
    Inventors: Jae Ryung Lee, Dong Hwan Kim, Koon Seung Kong
  • Patent number: 10450146
    Abstract: An automatic article sorting conveyor apparatus includes a supply unit configured to include first and second oblique roller frames having a plurality of first and second oblique rollers and to convey articles, an arranging unit configured to include third and fourth oblique roller frames having a plurality of third and fourth oblique rollers and a middle belt frame including a middle belt having a front coupled to the first and second oblique roller frames, and an article drop unit configured to include first and second counter-oblique roller frames having a plurality of first and second counter-oblique rollers on the left and right sides of the middle belt, first and second drop chutes having one ends coupled to the first and second counter-oblique roller frames, and first and second conveying belt frames have one ends coupled to the first and second drop chutes and including conveying belts circulate.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: October 22, 2019
    Assignees: HWADONG HIGHTECH CO., LTD.
    Inventor: Dong Hwan Kim
  • Publication number: 20190315280
    Abstract: A luggage compartment screen apparatus of a vehicle may include a moving housing movable along guide rails; a push mechanism to be drawn out or drawn in from the moving housing toward the luggage compartment and be rotatable and formed to have a step in a rotation direction thereof; and a locking mechanism rotatably disposed on the moving housing to be configured to be selectively locked to the guide rail, formed to have a step in a drawn-out and drawn-in direction of the push mechanism, and having a stepped portion in contact with a stepped portion of the push mechanism to be rotated to be locked to the guide rail at the time of a drawn-in operation or a rotation operation of the push mechanism and be rotated to be separated from the guide rail at the time of a drawn-out operation of the push mechanism.
    Type: Application
    Filed: August 20, 2018
    Publication date: October 17, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corp
    Inventors: Jang Hyun CHO, Won Jong Lee, Hee Cheol Kim, Dong Hwan Kim, Dong Ha Lee
  • Publication number: 20190305351
    Abstract: This application relates to a separator for a fuel cell and a fuel cell stack with improved durability, which contains the same, particularly to a solid oxide fuel cell stack. Specifically, this application allows an oxidizer and a fuel to flow in a counter-flow manner and a cross-flow manner in the fuel cell stack by forming an outlet manifold and an inlet manifold to have a specific shape, location and size in the separator. As a result, interlayer peeling, microcracking, etc. are prevented because no variation in temperature, reactant concentration, power, etc. occurs between each unit cell and the power density per unit volume is significantly improved because the volume is minimized.
    Type: Application
    Filed: October 25, 2018
    Publication date: October 3, 2019
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jong Ho LEE, Kyung Joong YOON, Sang Hyeok LEE, Yong Gyun BAE, Dong Hwan KIM, Jong Sup HONG