Patents by Inventor Seung-Kyu Choi

Seung-Kyu Choi 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: 20240123386
    Abstract: A filter holder comprises: a plurality of filter frames disposed such that at least some thereof are adjacent to each other; and a folding member which supports filter frames, from among the plurality of filter frames, adjacent to each other so as to be rotatable with respect to each other. The folding member comprises: a folding part which has a predetermined thickness and is flexible so as to be foldable by means of rotation of the adjacent filter frames adjacent with respect to each other; and a plurality of edge parts which are connected to the respective sides of the folding part with the folding portion therebetween and rotate together with the adjacent filter frames, and wherein when viewed from a cross-section of the folding member, the edge parts may have a greater thickness than the folding part.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 18, 2024
    Applicant: COWAY CO.,LTD.
    Inventors: Yoon Hyuck CHOI, Hyun Kyu LEE, Jong Cheol KIM, Seung Ki KIM, Sung Sil KANG, Ju Hyun BAEK, Chan Jung PARK
  • Patent number: 11961720
    Abstract: Disclosed herein is a multi-channel device for detecting plasma at an ultra-fast speed, including: a first antenna module connected to a first output terminal in contact with a substrate on a chuck of a process chamber and extending to ground, and receiving a first leakage current leaking through the substrate to increase reception sensitivity of the leakage current; a first current detection module detecting the first leakage current; a current measurement module receiving the first leakage current output from the first current detection module, and extracting the received first leakage current for each predetermined period to generate a first leakage current measurement information; and a control module comparing the first leakage current measurement information with a reference value to generate first arcing occurrence information.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: April 16, 2024
    Assignee: T.O.S Co., Ltd.
    Inventors: Yong Kyu Kim, Bum Ho Choi, Yong Sik Kim, Kwang Ki Kang, Hong Jong Jung, Seok Ho Lee, Seung Soo Lee
  • Patent number: 11958368
    Abstract: An apparatus for preventing a sub-frame of an electric vehicle with a wireless charging pad from being pushed back includes: a push bracket member having one side portion coupled to a front end module provided in front of a sub-frame of the electric vehicle and extending to be disposed between the sub-frame and a wireless charging pad mounted below the sub-frame. Upon a forward vehicle collision, the apparatus can induce deformation of the sub-frame equipped with the wireless charging pad to prevent the sub-frame from being pushed backward.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: April 16, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jong-Hun Choi, Seung-Kyu Kang
  • Publication number: 20240100464
    Abstract: An air filter comprises: a first filter frame in which a plurality of first chambers are formed; a second filter frame in which a plurality of second chambers are formed and which is arranged at the rear of the first filter frame; and a filter material which is accommodated in the plurality of first chambers and the plurality of second chambers to filter air, wherein the first filter frame and the second filter frame are arranged so that, when seen from the front, the center of each of the plurality of second chambers is out of line with the center of each of the plurality of first chambers, in the vertical direction.
    Type: Application
    Filed: January 28, 2022
    Publication date: March 28, 2024
    Applicant: COWAY CO., LTD.
    Inventors: Yoon Hyuck CHOI, Hyun Kyu LEE, Jong Cheol KIM, Seung Ki KIM, Sung Sil KANG, Ju Hyun BAEK, Chan Jung PARK
  • Publication number: 20240103362
    Abstract: Disclosed herein is a method of printing a nanostructure including: preparing a template substrate on which a pattern is formed; forming a replica pattern having an inverse phase of the pattern by coating a polymer thin film on an upper portion of the template substrate, adhering a thermal release tape to an upper portion of the polymer thin film, and separating the polymer thin film from the template substrate; forming a nanostructure by depositing a functional material on the replica pattern; and printing the nanostructure deposited on the replica pattern to a substrate by positioning the nanostructure on the substrate, applying heat and pressure to the nanostructure, and weakening an adhesive force between the thermal release tape and the replica pattern by the heat.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 28, 2024
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Min KIM, Seung Yong LEE, So Hye CHO, Ho Seong JANG, Jae Won CHOI, Chang Kyu HWANG
  • Publication number: 20240091759
    Abstract: Disclosed herein is a method of depositing a transition metal single-atom catalyst including preparing a carbon carrier, and depositing a transition metal single-atom catalyst on the carbon carrier, in which the carbon carrier is surface-treated by an oxidation process, and wherein the deposition is carried out by an arc plasma process.
    Type: Application
    Filed: September 15, 2023
    Publication date: March 21, 2024
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Min KIM, Sang Hoon KIM, Chang Kyu HWANG, Seung Yong LEE, So Hye CHO, Jae Won CHOI
  • Patent number: 11934950
    Abstract: An apparatus for embedding a sentence feature vector according to an embodiment includes a sentence acquisitor configured to acquire a first sentence and a second sentence, each including one or more words; a vector extractor configured to extract a first feature vector corresponding to the first sentence and a second feature vector corresponding to the second sentence by independently inputting each of the first sentence and the second sentence into a feature extraction network; and a vector compressor configured to compress the first feature vector and the second feature vector into a first compressed vector and a second compressed vector, respectively, by independently inputting each of the first feature vector and the second feature vector into a convolutional neural network (CNN)-based vector compression network.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: March 19, 2024
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Seong Ho Joe, Young June Gwon, Seung Jai Min, Ju Dong Kim, Bong Kyu Hwang, Jae Woong Yun, Hyun Jae Lee, Hyun Jin Choi
  • Patent number: 11925080
    Abstract: A display device includes a substrate including a display area and a non-display area, a plurality of pixels disposed in the display area, a common voltage supply wiring overlapping the non-display area and disposed on the substrate, a driving voltage supply wiring overlapping the non-display area and disposed on the substrate, and a data voltage supply wiring overlapping the non-display area and electrically connected to the plurality of pixels, where at least one of the common voltage supply wiring and the driving voltage supply wiring includes a chamfered area, the data voltage supply wiring includes a first data voltage supply wiring, a second data voltage supply wiring, and a third data voltage supply wiring, and the first to third data voltage supply wirings are disposed in different layers.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: March 5, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Ho Choi, Won Kyu Kwak, Chang Soo Pyon, Seung Gyu Tae
  • Publication number: 20230104974
    Abstract: Disclosed are an array substrate, a display panel and a method for repairing bad spots on the panel. The array substrate includes a substrate and a plurality of data lines and a plurality of scan lines provided on the substrate, the plurality of the data lines and a plurality of the scan lines are insulated and intersected mutually to define a plurality of sub-pixel areas provided in an array, each sub-pixel area is provided with a sub-pixel, the sub-pixel includes a plurality of pixel electrodes provided in a same layer and spaced to form a plurality of light-emitting areas, two adjacent pixel electrodes are electrically connected to each other via a connection electrode, and a pixel driving circuit is electrically connected to a corresponding data line, a corresponding scan line, and a corresponding pixel electrode.
    Type: Application
    Filed: September 27, 2022
    Publication date: April 6, 2023
    Applicant: HKC CORPORATION LIMITED
    Inventors: WON KYU LEE, SEUNG KYU CHOI, Kerong WU, IL NAM SONG, HAE WON KIM, Boling TANG, Haijiang YUAN
  • Publication number: 20220302488
    Abstract: The polymer electrolyte membrane includes: a first ion conductive polymer layer; and a second ion conductive polymer layer disposed on at least one surface of the first ion conductive polymer layer, wherein the first ion conductive polymer layer comprises a first ion conductive polymer comprising a sulfonic acid group, wherein the second ion conductive polymer layer comprises a second ion conductive polymer comprising a carboxylic acid group, and wherein a thickness of the second ion conductive polymer layer is in a range of 1% to 80% of a thickness of the polymer electrolyte membrane. Further, disclosed are the method for preparing the same, the membrane-electrode assembly including the same, and the fuel cell including the same.
    Type: Application
    Filed: December 27, 2021
    Publication date: September 22, 2022
    Applicants: HYUNDAI MOBIS CO., LTD., Dankook University Cheonan Campus Industry Academic Cooperation Foundation
    Inventors: Pil Won HEO, Sung Chul LEE, Eun Heui KANG, Seung Kyu CHOI, Ki Young JEONG, Chang Hyun LEE, In Kee PARK
  • Patent number: 10475866
    Abstract: Disclosed are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes a thin film transistor (TFT) including a gate electrode and a source electrode provided on a substrate, a planarization layer provided on the TFT to have a step height, an anode electrode provided on the planarization layer and connected to the source electrode, an organic light emitting layer provided on an upper surface of the anode electrode, and a cathode electrode provided on the organic light emitting layer. The planarization layer includes a first area and a second area, provided at different heights, and a third area including an inclined surface between the first area and the second area. Also, the method includes forming a planarization layer on the source electrode to have a step height.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: November 12, 2019
    Inventors: Seung Kyu Choi, Nam Wook Cho
  • Patent number: 10418514
    Abstract: Exemplary embodiments of the present invention disclose a light emitting diode including an n-type contact layer doped with silicon, a p-type contact layer, an active region disposed between the n-type contact layer and the p-type contact layer, a superlattice layer disposed between the n-type contact layer and the active region, the superlattice layer including a plurality of layers, an undoped intermediate layer disposed between the superlattice layer and the n-type contact layer, and an electron reinforcing layer disposed between the undoped intermediate layer and the superlattice layer. Only a final layer of the superlattice layer closest to the active region is doped with silicon, and the silicon doping concentration of the final layer is higher than that of the n-type contact layer.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: September 17, 2019
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Kwang Joong Kim, Chang Suk Han, Kyung Hee Ye, Seung Kyu Choi, Ki Bum Nam, Nam Yoon Kim, Kyung Hae Kim, Ju Hyung Yoon
  • Patent number: 9966497
    Abstract: A method of fabricating a nonpolar gallium nitride-based semiconductor layer is provided. The method is a method of fabricating a nonpolar gallium nitride layer using metal organic chemical vapor deposition, and includes disposing a gallium nitride substrate with an m-plane growth surface within a chamber, raising a substrate temperature to a GaN growth temperature by heating the substrate, and growing a gallium nitride layer on the gallium nitride substrate by supplying a Ga source gas, an N source gas, and an ambient gas into the chamber at the growth temperature. The supplied ambient gas contains N2 and does not contain H2.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: May 8, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seung Kyu Choi, Chae Hon Kim, Jung Whan Jung
  • Patent number: 9966501
    Abstract: A light emitting device includes a substrate including gallium nitride, and a semiconductor layer disposed on the substrate, the semiconductor layer including an n-type nitride semiconductor layer, an active layer disposed on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer disposed on the active layer, in which an angle defined between a crystal growth plane of the substrate and an m-plane thereof is in a range of 3.5° to 6.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: May 8, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seung Kyu Choi, Hee Sub Lee, Soon Ho Ahn, Chae Hon Kim, Su Youn Hong
  • Publication number: 20180097049
    Abstract: Disclosed are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes a thin film transistor (TFT) including a gate electrode and a source electrode provided on a substrate, a planarization layer provided on the TFT to have a step height, an anode electrode provided on the planarization layer and connected to the source electrode, an organic light emitting layer provided on an upper surface of the anode electrode, and a cathode electrode provided on the organic light emitting layer. The planarization layer includes a first area and a second area, provided at different heights, and a third area including an inclined surface between the first area and the second area. Also, the method includes forming a planarization layer on the source electrode to have a step height.
    Type: Application
    Filed: September 27, 2017
    Publication date: April 5, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Seung Kyu CHOI, Nam Wook CHO
  • Publication number: 20180096584
    Abstract: There is provided a car-key searching system comprising: a car-key searching device configured to generate a car-key device alarm request message in a response to a car-key device alarm request from a user, and to transmit the message to a searched car-key device; and the searched car key device configured to generate a vibration or a sound upon receiving the car-key device alarm request message from the car-key searching device.
    Type: Application
    Filed: May 17, 2017
    Publication date: April 5, 2018
    Inventor: SEUNG KYU CHOI
  • Patent number: 9853182
    Abstract: Disclosed herein is a light emitting diode (LED) including: a gallium nitride substrate; a gallium nitride-based first contact layer disposed on the gallium nitride substrate; a gallium nitride-based second contact layer; an active layer having a multi-quantum well structure and disposed between the first and second contact layers; and a super-lattice layer having a multilayer structure and disposed between the first contact layer and the active layer. By employing the gallium nitride substrate, the crystallinity of the semiconductor layers can be improved, and in addition, by disposing the super-lattice layer between the first contact layer and the active layer, a crystal defect that may be generated in the active layer can be prevented.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: December 26, 2017
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Seung Kyu Choi, Chae Hon Kim, Jung Whan Jung, Ki Bum Nam, Kenji Shimoyama, Kaori Kurihara
  • Publication number: 20170309775
    Abstract: Exemplary embodiments of the present invention disclose a light emitting diode including an n-type contact layer doped with silicon, a p-type contact layer, an active region disposed between the n-type contact layer and the p-type contact layer, a superlattice layer disposed between the n-type contact layer and the active region, the superlattice layer including a plurality of layers, an undoped intermediate layer disposed between the superlattice layer and the n-type contact layer, and an electron reinforcing layer disposed between the undoped intermediate layer and the superlattice layer. Only a final layer of the superlattice layer closest to the active region is doped with silicon, and the silicon doping concentration of the final layer is higher than that of the n-type contact layer.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 26, 2017
    Inventors: Kwang Joong Kim, Chang Suk Han, Kyung Hee Ye, Seung Kyu Choi, Ki Bum Nam, Nam Yoon Kim, Kyung Hae Kim, Ju Hyung Yoon
  • Patent number: 9728404
    Abstract: Exemplary embodiments of the present invention provide a method of growing a nitride semiconductor layer including growing a gallium nitride-based defect dispersion suppressing layer on a gallium nitride substrate including non-defect regions and a defect region disposed between the non-defect regions, and growing a gallium nitride semiconductor layer on the defect dispersion suppressing layer.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 8, 2017
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Woo Chul Kwak, Seung Kyu Choi, Jae Hoon Song, Chae Hon Kim, Jung Whan Jung
  • Patent number: 9716210
    Abstract: Exemplary embodiments of the present invention disclose a light emitting diode including an n-type contact layer doped with silicon, a p-type contact layer, an active region disposed between the n-type contact layer and the p-type contact layer, a superlattice layer disposed between the n-type contact layer and the active region, the superlattice layer including a plurality of layers, an undoped intermediate layer disposed between the superlattice layer and the n-type contact layer, and an electron reinforcing layer disposed between the undoped intermediate layer and the superlattice layer. Only a final layer of the super lattice layer closest to the active region is doped with silicon, and the silicon doping concentration of the final layer is higher than that of the n-type contact layer.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: July 25, 2017
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Kwang Joong Kim, Chang Suk Han, Kyung Hee Ye, Seung Kyu Choi, Ki Bum Nam, Nam Yoon Kim, Kyung Hae Kim, Ju Hyung Yoon