Patents by Inventor Byung Sung Choi

Byung Sung 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).

  • Patent number: 11967529
    Abstract: Methods of manufacturing a semiconductor chip are provided. The methods may include providing a semiconductor substrate including integrated circuit regions and a cut region. The cut region may be between the integrated circuit regions. The methods may also include forming a modified layer by emitting a laser beam into the semiconductor substrate along the cut region, polishing an inactive surface of the semiconductor substrate to propagate a crack from the modified layer, and separating the integrated circuit regions along the crack. The cut region may include a plurality of multilayer metal patterns on an active surface of the semiconductor substrate, which is opposite to the inactive surface of the semiconductor substrate. The plurality of multilayer metal patterns may form a pyramid structure when viewed in cross section.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: April 23, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-moon Bae, Yoon-sung Kim, Yun-hee Kim, Hyun-su Sim, Jun-ho Yoon, Jung-ho Choi
  • Publication number: 20240113270
    Abstract: A display device includes a base layer including a first base layer and a second base layer disposed on a rear surface of the first base layer, light emitting elements disposed on a surface of the first base layer, and pads including a first pad and a second pad, which are disposed on the rear surface of the first base layer and are spaced apart from each other. The base layer further includes blocking layers which are disposed between the first base layer and the second base layer and at least portions of the blocking layers do not overlap the pads in a plan view. The blocking layers include a first blocking layer and a second blocking layer, which are disposed in different layers.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 4, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Se Hun CHOI, Dong Sung LEE, Byung Hoon KIM, Tae Oh KIM
  • Patent number: 11945798
    Abstract: Provided are aminopyridine compounds and pharmaceutically acceptable compositions thereof which exhibit inhibition activity against certain mutated forms of EGFR.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: April 2, 2024
    Assignees: YUHAN CORPORATION, JANSSEN BIOTECH, INC.
    Inventors: Hyunjoo Lee, Su Bin Choi, Young Ae Yoon, Kwan Hoon Hyun, Jae Young Sim, Marian C. Bryan, Scott Kuduk, James Campbell Robertson, Jaekyoo Lee, Paresh Devidas Salgaonkar, Byung-Chul Suh, Jong Sung Koh, So Young Hwang
  • Publication number: 20240105897
    Abstract: A display device comprises a first substrate comprising a first contact hole, a laser absorption layer disposed on the first substrate and containing amorphous silicon, a first barrier insulating layer disposed on the laser absorption layer, fan-out lines disposed in a metal layer on the first barrier insulating layer and comprising pad portions inserted into second contact holes provided in the first barrier insulating layer and the laser absorption layer, a second barrier insulating layer disposed on the metal layer, a second substrate disposed on the second barrier insulating layer, and a display layer disposed on the second substrate. The second substrate is inserted into a third contact hole provided in the second barrier insulating layer, the first barrier insulating layer, and the laser absorption layer disposed between the pad portions.
    Type: Application
    Filed: July 21, 2023
    Publication date: March 28, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Se Hun CHOI, Dong Sung LEE, Mi Sun KIM, Byung Hoon KIM, Tae Oh KIM
  • Patent number: 11921158
    Abstract: Disclosed is a fan-out buffer which includes a first channel that includes a first delay circuit adjusting a first delay time of a calibration test signal depending on a first delay control signal, a second channel that includes a second delay circuit adjusting a second delay time of the calibration test signal depending on a second delay control signal, a first edge-to-pulse converter that detects a first edge included in a first time domain reflectometry (TDR) waveform of an output terminal of the first channel and generates a first start pulse signal including a first pulse, a second edge-to-pulse converter that generates a second start pulse signal including a second pulse, a stop pulse signal generator that generates a stop pulse signal including a first stop pulse, and a first delay control signal generator that calculates a phase difference generates the first delay control signal.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: March 5, 2024
    Inventors: Byung-Sung Kim, Yun-Hyok Choi, Gyuyeol Kim, Sungjung Kim, Cheol-Heui Park, Sanghoon Lee, Jae-Woong Choi
  • Patent number: 8441227
    Abstract: A portable terminal includes a cover movably coupled to a body, a first solar cell on the body; and a second solar cell on the cover. The first and second solar cells may be oriented in the same or different directions. When oriented in the same direction, both solar cells may receive light when the cover is opened relative to the body. The solar cells output voltages for simultaneously charging a battery when the cover is opened and when voltages from the first and second solar cells exceed a predetermined reference voltage.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: May 14, 2013
    Assignee: LG Electronics Inc.
    Inventors: Byung-Sung Choi, Won-Ho Choi
  • Patent number: 8094464
    Abstract: Disclosed is a portable terminal, including a first circuit board coupled to a main body and having a first connection terminal mounted on a surface thereof; a second circuit board coupled to the main body so as to cover at least a portion of the first circuit board, having a first area where an intermediate connection terminal contacting the first connection terminal is mounted on a surface thereof, and a second area where a second connection terminal electrically connected to the intermediate connection terminal is mounted on a surface thereof; and an electronic component having at least a portion thereof contacted by the second connection terminal, and for being electrically connected to the first circuit board.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: January 10, 2012
    Assignee: LG Electronics Inc.
    Inventor: Byung-Sung Choi
  • Publication number: 20110109259
    Abstract: A portable terminal includes a cover movably coupled to a body, a first solar cell on the body; and a second solar cell on the cover. The first and second solar cells may be oriented in the same or different directions. When oriented in the same direction, both solar cells may receive light when the cover is opened relative to the body. The solar cells output voltages for simultaneously charging a battery when the cover is opened and when voltages from the first and second solar cells exceed a predetermined reference voltage.
    Type: Application
    Filed: October 7, 2010
    Publication date: May 12, 2011
    Inventors: Byung-Sung CHOI, Won-Ho Choi
  • Patent number: 7912520
    Abstract: A mobile phone having a body including a ground portion, a cover of a metallic material coupled to the body, the cover forming an exterior surface of the mobile phone, and a grounding unit electrically connecting the ground portion of the body to the cover, the grounding unit being disposed on one of facing surfaces of the body and the cover. Since the body and the metallic cover are electrically and stably connected with each other, a wireless communication characteristic of the mobile phone is prevented from being lowered.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: March 22, 2011
    Assignee: LG Electronics Inc.
    Inventors: Byung-Sung Choi, Sang-Ki Hong, Sung-Min Kim
  • Patent number: 7826806
    Abstract: A mobile terminal is provided that includes a housing having an opening formed therein, a cover disposed in the opening of the housing, the cover including at least one light transmission opening, an input switch located beneath the opening of the housing and the at least one light transmission opening, a light emitter to illuminate the at least one light transmission opening, and a light constraining member to direct light from the light emitter towards the light transmission opening and to minimize light emitted from the light emitter from being directed peripherally of the light transmission opening.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: November 2, 2010
    Assignee: LG Electronics Inc.
    Inventor: Byung-Sung Choi
  • Publication number: 20090303691
    Abstract: Disclosed is a portable terminal, including a first circuit board coupled to a main body and having a first connection terminal mounted on a surface thereof; a second circuit board coupled to the main body so as to cover at least a portion of the first circuit board, having a first area where an intermediate connection terminal contacting the first connection terminal is mounted on a surface thereof, and a second area where a second connection terminal electrically connected to the intermediate connection terminal is mounted on a surface thereof; and an electronic component having at least a portion thereof contacted by the second connection terminal, and for being electrically connected to the first circuit board.
    Type: Application
    Filed: April 9, 2009
    Publication date: December 10, 2009
    Inventor: Byung-Sung Choi
  • Patent number: 7505278
    Abstract: A display assembly having a display module to receive a display signal containing prescribed information, a main circuitry supporting substrate including a ground, a flexible circuitry supporting substrate module connected to the circuitry supporting substrate to process or transfer data for prescribed information from the circuit board to the display module, the flexible circuitry supporting substrate module having recessed conductive portions, and a conductive member connected to the flexible circuitry supporting substrate module to ground the flexible circuitry supporting substrate and the display module, the conductive member including conductive tape applied to the flexible circuitry supporting substrate module and conductive paste to connect recessed conductive portions of the flexible circuitry supporting substrate module to the conductive tape. The display assembly may be formed in a mobile terminal.
    Type: Grant
    Filed: January 5, 2007
    Date of Patent: March 17, 2009
    Assignee: LG Electronics Inc.
    Inventors: Byung Sung Choi, Hyoung Seok Kim, Sang Ki Hong
  • Publication number: 20080096616
    Abstract: A mobile terminal is provided that includes a housing having an opening formed therein, a cover disposed in the opening of the housing, the cover including at least one light transmission opening, an input switch located beneath the opening of the housing and the at least one light transmission opening, a light emitter to illuminate the at least one light transmission opening, and a light constraining member to direct light from the light emitter towards the light transmission opening and to minimize light emitted from the light emitter from being directed peripherally of the light transmission opening.
    Type: Application
    Filed: January 5, 2007
    Publication date: April 24, 2008
    Inventor: Byung-Sung Choi
  • Publication number: 20080062661
    Abstract: A display assembly having a display module to receive a display signal containing prescribed information, a main circuitry supporting substrate including a ground, a flexible circuitry supporting substrate module connected to the circuitry supporting substrate to process or transfer data for prescribed information from the circuit board to the display module, the flexible circuitry supporting substrate module having recessed conductive portions, and a conductive member connected to the flexible circuitry supporting substrate module to ground the flexible circuitry supporting substrate and the display module, the conductive member including conductive tape applied to the flexible circuitry supporting substrate module and conductive paste to connect recessed conductive portions of the flexible circuitry supporting substrate module to the conductive tape. The display assembly may be formed in a mobile terminal.
    Type: Application
    Filed: January 5, 2007
    Publication date: March 13, 2008
    Inventors: Byung Sung Choi, Hyoung Seok Kim, Sang Ki Hong
  • Publication number: 20080020813
    Abstract: A mobile phone having a body including a ground portion, a cover of a metallic material coupled to the body, the cover forming an exterior surface of the mobile phone, and a grounding unit electrically connecting the ground portion of the body to the cover, the grounding unit being disposed on one of facing surfaces of the body and the cover. Since the body and the metallic cover are electrically and stably connected with each other, a wireless communication characteristic of the mobile phone is prevented from being lowered.
    Type: Application
    Filed: June 1, 2007
    Publication date: January 24, 2008
    Inventors: Byung-Sung Choi, Sang-Ki Hong, Sung-Min Kim