Patents by Inventor Byung-Wook Ahn

Byung-Wook Ahn 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: 20240120020
    Abstract: A memory device, and a method of testing the memory device for failure, includes a first chip including a memory cell array and a second chip overlapping with the first chip. The second chip includes: a semiconductor substrate including a peripheral circuit area and a lower test area; a plurality of sub-test pads and an input pad, disposed on the lower test area of the semiconductor substrate and spaced apart from each other; a plurality of sub-test circuits respectively connected to the plurality of sub-test pads; and a detection circuit connected to a plurality of terminals of the plurality of sub-test circuits, the detection circuit configured to output a detection signal changed according to a plurality of signals input from the plurality of terminals.
    Type: Application
    Filed: March 24, 2023
    Publication date: April 11, 2024
    Applicant: SK hynix Inc.
    Inventors: Byung Wook BAE, Jung Ryul AHN
  • Publication number: 20210327971
    Abstract: Disclosed are display layers, panels and devices. The display panel has a first display region and a second display region, at least a portion of which is bounded by the first display region, a plurality of first pixels on the first display region, and a plurality of second pixels on the second display region and including a plurality of light-emitting pixels each providing the same color as that produced from one of the first pixels and a plurality of non-light-emitting pixels. A first region where the light-emitting pixels are disposed is asymmetric to a second region where the non-light-emitting pixels are disposed.
    Type: Application
    Filed: December 31, 2020
    Publication date: October 21, 2021
    Inventors: Chang Ho Hyun, Dohyun Kang, Byung Wook Ahn
  • Patent number: 11078422
    Abstract: An LCD panel, comprises substrates facing each other, a liquid crystal layer disposed between the substrates and liquid crystal alignment layers, each sandwiched between the liquid crystal layer and a respective one of the substrates, wherein the liquid crystal alignment layers comprises hydrocarbon derivative having perfluorocarbon group.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: August 3, 2021
    Inventors: Shin Woong Kang, Kundu Sudarshan, Byung Wook Ahn, Keun Chan Oh, Chang Hun Lee, Soon Joon Rho, Jae Jin Lyu
  • Patent number: 10141576
    Abstract: There is provided an electrode for a lithium secondary battery. The electrode include a current collector; nanoparticles distributed on a surface of the current collector, each of the nanoparticles including a transition metal or an oxide of the transition metal; and an active material layer disposed on a surface of the current collector having the nanoparticles distributed thereon. This electrode may be employed as a negative electrode for the lithium second battery, to improve a capacity of the lithium second battery.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: November 27, 2018
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Su-Jeong Seo, Young-Il Song, Jung-Kab Park, Tae-Yoo Kim, Hwa-Jin Son, Jin-Ha Shin, Jungwoo Lee, Youngil Na, Younglae Cho, Jung-Ho Park, Seung-Bin Baeg, Byung-Wook Ahn, Sook-Young Yun
  • Patent number: 10126599
    Abstract: A liquid crystal device that includes two substrates that face each other, a liquid crystal cell interposed between the two substrates, and a liquid crystal alignment layer interposed between the liquid crystal cell and at least one of the two substrates, the liquid crystal alignment layer includes a plurality of spherical or spherical-like core particles having a diameter of 10 nm to 1 ?m.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 13, 2018
    Assignees: Samsung Display Co., Ltd., INDUSTRIAL COOPERATION FOUNDATION CHONBUK NATIONAL UNIVERSITY
    Inventors: Shin Woong Kang, Kwang Un Jeong, Byung Wook Ahn, Keun Chan Oh, Chang Hun Lee
  • Patent number: 10114422
    Abstract: A cover panel and a display device, the cover panel including a heat sink layer; an impact absorbing layer on the heat sink layer; and an elastic pattern on at least one side of the impact absorbing layer.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: October 30, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Chan Lee, Jong Deok Park, Byung Wook Ahn, Ki Kyung Youk, Jee Hun Lim, Suk Won Jung, Won Joon Choi, Jeong Ho Hwang
  • Publication number: 20180208850
    Abstract: An LCD panel, comprises substrates facing each other, a liquid crystal layer disposed between the substrates and liquid crystal alignment layers, each sandwiched between the liquid crystal layer and a respective one of the substrates, wherein the liquid crystal alignment layers comprises hydrocarbon derivative having perfluorocarbon group.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Inventors: Shin Woong KANG, Kundu SUDARSHAN, Byung Wook AHN, Keun Chan OH, Chang Hun LEE, Soon Joon RHO, Jae Jin LYU
  • Patent number: 10031360
    Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: July 24, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Samsung Display Co., Ltd.
    Inventors: Jun-seok An, Dong-wook Kim, Sung-hwan Kim, Jee-su Park, Chan-hong Park, Byung-kook Sim, Jong-cheol Lee, Cheol-se Lee, Hyeong-sik Choi, Byung-wook Ahn, Cheong-hun Lee
  • Patent number: 10002712
    Abstract: Disclosed is a multi-layer capacitor package comprising: a multi-layer capacitor; connection electrodes coupled to capacitor electrodes respectively, wherein the connection electrodes in each group of the connection electrodes vertically overlap with each other, and first and second groups of the connection electrodes are horizontally spaced from each other; a package housing configured to receive therein the multi-layer capacitor; and first and second internal electrodes received in the housing to be coupled to the first and second groups of the connection electrodes respectively, wherein the first and second internal electrodes are horizontally spaced from each other.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: June 19, 2018
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Su-Jeong Seo, Tae-Yoo Kim, Jung-Kab Park, Young-Il Song, Jin-Ha Shin, Jungwoo Lee, Younglae Cho, Byung-Wook Ahn, Jung-Ho Park, Sook-Young Yun, Seung-Bin Baeg, Young-il Na
  • Patent number: 9944856
    Abstract: An LCD panel, comprises substrates facing each other, a liquid crystal layer disposed between the substrates and liquid crystal alignment layers, each sandwiched between the liquid crystal layer and a respective one of the substrates, wherein the liquid crystal alignment layers comprises hydrocarbon derivative having perfluorocarbon group.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: April 17, 2018
    Assignees: Samsung Display Co., LTD., INDUSTRIAL COOPERATION FOUNDATION CHONBUK NATIONAL UNIVERSITY
    Inventors: Shin Woong Kang, Kundu Sudarshan, Byung Wook Ahn, Keun Chan Oh, Chang Hun Lee, Soon Joon Rho, Jae Jin Lyu
  • Publication number: 20180074556
    Abstract: A cover panel and a display device, the cover panel including a heat sink layer; an impact absorbing layer on the heat sink layer; and an elastic pattern on at least one side of the impact absorbing layer.
    Type: Application
    Filed: August 17, 2017
    Publication date: March 15, 2018
    Inventors: Seung Chan LEE, Jong Deok PARK, Byung Wook AHN, Ki Kyung YOUK, Jee Hun LIM, Suk Won JUNG, Won Joon CHOI, Jeong Ho HWANG
  • Patent number: 9855602
    Abstract: Disclosed are a method of producing a metal composite powder by wire explosion in a liquid and a metal composite powder that is coated with a multi carbon layer. The production method includes a process of forming a first carbon layer on a surface of a metal wire consisting of a first metal, a process of forming a metal layer consisting of a second metal, which is different from the first metal, on a surface of the first carbon layer, and a process of forming a metal composite powder coated with a multi carbon layer by wire exploding the metal wire containing the first carbon layer and the metal layer formed on a surface thereof in a solution.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: January 2, 2018
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Su-Jeong Seo, Young-Il Song, Jung-Kab Park, Tae-Yoo Kim, Hwa-Jin Son, Jin-Ha Shin, Jungwoo Lee, Younglae Cho, Jung-Ho Park, Seung-Bin Baeg, Byung-Wook Ahn, Sook-Young Yun
  • Patent number: 9850592
    Abstract: Provided is a method of forming a complex plating film using multi-layer graphene metal particles. The method of forming the plating film may include preparing a powder with a metal particle structure coated with multi-layer graphene, and forming a plating film by adding the powder to a plating solution through electric plating.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: December 26, 2017
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Su-Jeong Suh, Young-Il Song, Jung-Ho Park, Jung-Kab Park, Tae-Yoo Kim, Hwa-Jin Son, Jin-Ha Shin, Mi-Ri Lee, Jungwoo Lee, Changhyoung Lee, Younglae Cho, Seung-Bin Baeg, Byung-Wook Ahn, Sook-Young Yun
  • Patent number: 9752065
    Abstract: A sealant composition includes a curable sealing resin, and a plurality of microcapsules dispersed in the sealing resin. Each of the plurality of microcapsules includes a self-curable healing agent and a capsule coating film encapsulating the healing agent.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: September 5, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Byung-Wook Ahn
  • Publication number: 20170082889
    Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 23, 2017
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Samsung Display Co., Ltd.
    Inventors: Jun-seok AN, Dong-wook KIM, Sung-hwan KIM, Jee-su PARK, Chan-hong PARK, Byung-kook SIM, Jong-cheol LEE, Cheol-se LEE, Hyeong-sik CHOI, Byung-wook AHN, Cheong-hun LEE
  • Patent number: 9551893
    Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: January 24, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Samsung Display Co., Ltd.
    Inventors: Jun-seok An, Dong-wook Kim, Sung-hwan Kim, Jee-su Park, Chan-hong Park, Byung-kook Sim, Jong-cheol Lee, Cheol-se Lee, Hyeong-sik Choi, Byung-wook Ahn, Cheong-hun Lee
  • Publication number: 20160344021
    Abstract: There is provided an electrode for a lithium secondary battery. The electrode include a current collector; nanoparticles distributed on a surface of the current collector, each of the nanoparticles including a transition metal or an oxide of the transition metal; and an active material layer disposed on a surface of the current collector having the nanoparticles distributed thereon. This electrode may be employed as a negative electrode for the lithium second battery, to improve a capacity of the lithium second battery.
    Type: Application
    Filed: January 19, 2016
    Publication date: November 24, 2016
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Su-Jeong SEO, Young- Il SONG, Jung-Kab PARK, Tae-Yoo KIM, Hwa-Jin SON, Jin-Ha SHIN, Jungwoo LEE, Youngil NA, Younglae CHO, Jung-Ho PARK, Seung-Bin BAEG, Byung-Wook AHN, Sook-Young YUN
  • Publication number: 20160326434
    Abstract: A liquid crystal composition includes at least one liquid crystal molecule having a positive dielectric anisotropy represented by Chemical Formula 1: In Chemical Formula 1, each of A and B is independently 1, 4-cyclohexylene or 1, 4-phenylene, C is cyclopentyl or cyclopentadienyl, each of Z1 and Z2 is independently a single bond, alkylene group, carbonyloxy, —CF2O—, —OCF2—, —CH2O—, or —OCH2—, each of L1 to L8 is independently —H, —F, —CF3, or may be difluoride (diF) when A or B is 1, 4-cyclohexylene, each of L9 to L12 is independently —H, —F, —CF3, or difluoride, each of m and n is 0 to 2, and R1 is an alkyl group or an alkoxy group, and the number of carbons of R1 is about 1 to about 10.
    Type: Application
    Filed: April 25, 2016
    Publication date: November 10, 2016
    Inventors: Byung Wook AHN, Fusayuki TAKESHITA, Keun Chan OH
  • Publication number: 20160318099
    Abstract: Disclosed are a method of producing a metal composite powder by wire explosion in a liquid and a metal composite powder that is coated with a multi carbon layer. The production method includes a process of forming a first carbon layer on a surface of a metal wire consisting of a first metal, a process of forming a metal layer consisting of a second metal, which is different from the first metal, on a surface of the first carbon layer, and a process of forming a metal composite powder coated with a multi carbon layer by wire exploding the metal wire containing the first carbon layer and the metal layer formed on a surface thereof in a solution.
    Type: Application
    Filed: January 13, 2016
    Publication date: November 3, 2016
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Su-Jeong SEO, Young-Il SONG, Jung-Kab PARK, Tae-Yoo KIM, Hwa-Jin SON, Jin-Ha SHIN, Jungwoo LEE, Younglae CHO, Jung-Ho PARK, Seung-Bin BAEG, Byung-Wook AHN, Sook-Young YUN
  • Publication number: 20160300663
    Abstract: Disclosed is a multi-layer capacitor package comprising: a multi-layer capacitor; connection electrodes coupled to capacitor electrodes respectively, wherein the connection electrodes in each group of the connection electrodes vertically overlap with each other, and first and second groups of the connection electrodes are horizontally spaced from each other; a package housing configured to receive therein the multi-layer capacitor; and first and second internal electrodes received in the housing to be coupled to the first and second groups of the connection electrodes respectively, wherein the first and second internal electrodes are horizontally spaced from each other.
    Type: Application
    Filed: March 8, 2016
    Publication date: October 13, 2016
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Su-Jeong SEO, Tae-Yoo KIM, Jung-Kab PARK, Young-Il SONG, Jin-Ha SHIN, Jungwoo LEE, Younglae CHO, Byung-Wook AHN, Jung-Ho PARK, Sook-Young YUN, Seung-Bin BAEG, Young-il NA