Patents by Inventor Byoung-kwon An

Byoung-kwon An 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: 11985865
    Abstract: A display device according to an embodiment includes: a substrate; a transistor that is disposed on the substrate; a light emitting diode that is disposed on the substrate, and connected to the transistor; and a passivation layer that is disposed between the transistor and the light emitting diode, wherein a surface step of the passivation layer is within a range of and including 1 nm to 30 nm.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: May 14, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung Kwon Choo, Seung Bae Kang, Bong Gu Kang, Tae Joon Kim, Jeong Min Park, Joon-Hwa Bae, Hee Sung Yang, Woo Jin Cho
  • Publication number: 20240147072
    Abstract: An actuator for optical image stabilization, includes a fixed frame having an internal space; a moving frame, accommodated in the internal space, configured to linearly and rotatably move on a plane perpendicular to an optical axis; a first ball member disposed between the fixed frame and the moving frame; a first driver, disposed on the moving frame and the fixed frame, configured to provide a driving force to the moving frame; a plurality of magnetic bodies disposed on the fixed frame to generate attractive force with respect to the first driver disposed on the moving frame; a sensor substrate having a portion coupled to the moving frame to be movable, together with the moving frame, and another portion coupled to the fixed frame; and an image sensor disposed on the portion of the sensor substrate.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 2, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Oh Byoung KWON, Bo Sung SEO, Soo Cheol LIM, Gab Yong KIM, Ki Hoon JANG, Young Bok YOON
  • Publication number: 20240136480
    Abstract: A display device is disclosed that includes a substrate, a light emitting device disposed on the substrate, an encapsulation layer covering the light emitting device, a light control film disposed on the encapsulation layer and including a plurality of light control patterns, and each of the light control patterns includes a first metal pattern disposed on the encapsulation layer, a first light transmission pattern disposed on the first metal pattern, a second metal pattern disposed on the first light transmission pattern and overlapping the first metal pattern, a second light transmission pattern disposed on the second metal pattern and overlapping the first light transmission pattern, a first light blocking pattern disposed on the same layer as the first metal pattern and overlapping the first light transmission pattern, and a second light blocking pattern disposed on the same layer as the second metal pattern and overlapping the second light transmission pattern.
    Type: Application
    Filed: May 10, 2023
    Publication date: April 25, 2024
    Inventors: SEUNGBAE KANG, SUNGJUN KIM, SUNGHOON MOON, BYOUNG KWON CHOO
  • Patent number: 11955887
    Abstract: A switch control circuit and a switch control method are provided. In this circuit, compositions that sense a drain voltage of a switch device are added in a QR Buck Converter switch control circuit. A first resistor, a second switch, a second resistor are electrically connected to a drain terminal of a switch device to sense the 0 A state of an inductor current. On the basis of a detection result, the switch control circuit turns on the switch device when an inductor current is 0 A, and a drain sensing voltage (ZCD) is less than a predetermined reference voltage (REF).
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: April 9, 2024
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Jang Hyuck Lee, Joo Han Yoon, Byoung Kwon An
  • Patent number: 11947132
    Abstract: There is provided a camera module including a plurality of ball bearings to support the driving of a lens barrel at the time of compensating for unintended camera movement due to disturbance such as hand shake. The lens barrel may be driven in first and second directions, independently, by one driving force exerted in the first direction perpendicular to an optical axis and by another driving force exerted in the second direction perpendicular to both the optical axis and the first direction, thereby preventing driving displacement from being generated at the time of compensating for unwanted motion such as hand shake while securing reliability against external impact, and having reduced power consumption at the time of compensating for the disturbance.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: April 2, 2024
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Ryung Park, Oh Byoung Kwon, Soo Cheol Lim, Byung Woo Kang
  • Patent number: 11939347
    Abstract: Compounds and methods of using said compounds, singly or in combination with additional agents, and pharmaceutical compositions of said compounds for the treatment of viral infections are disclosed.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: March 26, 2024
    Assignee: Gilead Sciences, Inc.
    Inventors: Daniel H. Byun, Byoung-Kwon Chun, Michael O. Clarke, Petr Jansa, Rao V. Kalla, Dmitry Koltun, Richard L. Mackman, Thao D. Perry, Dustin S. Siegel, Scott P. Simonovich
  • Patent number: 11926645
    Abstract: Compounds and methods of using said compounds, singly or in combination with additional agents, and salts, crystalline forms, pharmaceutical compositions of said compounds for the treatment of viral infections are disclosed.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: March 12, 2024
    Assignee: Gilead Sciences, Inc.
    Inventors: Elaine Bunyan, Byoung-Kwon Chun, Kassibla E. Dempah, Hon C. Hui, Rao V. Kalla, Richard L. Mackman
  • Patent number: 11919122
    Abstract: A substrate processing apparatus includes: a conveyor belt configured to have an outer surface on which a bottom surface of a substrate is seated; and a polishing head unit configured to face an upper surface of the substrate, wherein the polishing head unit includes: a polishing head connected to a driver; a polishing pad configured to face the polishing head; a polishing pad fixing ring disposed between the polishing head and the polishing pad; and a temperature sensor configured to overlap the polishing pad fixing ring and to be spaced apart from the polishing pad fixing ring.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: March 5, 2024
    Assignees: SAMSUNG DISPLAY CO., LTD., KCTECH CO., LTD.
    Inventors: Seung Bae Kang, Sung Hyeon Park, Jung Gun Nam, Joon-Hwa Bae, Kyung Bo Lee, Keun Woo Lee, Woo Jin Cho, Byoung Kwon Choo
  • Patent number: 11910090
    Abstract: An actuator for optical image stabilization, includes a fixed frame having an internal space; a moving frame, accommodated in the internal space, configured to linearly and rotatably move on a plane perpendicular to an optical axis; a first ball member disposed between the fixed frame and the moving frame; a first driver, disposed on the moving frame and the fixed frame, configured to provide a driving force to the moving frame; a plurality of magnetic bodies disposed on the fixed frame to generate attractive force with respect to the first driver disposed on the moving frame; a sensor substrate having a portion coupled to the moving frame to be movable, together with the moving frame, and another portion coupled to the fixed frame; and an image sensor disposed on the portion of the sensor substrate.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: February 20, 2024
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Oh Byoung Kwon, Bo Sung Seo, Soo Cheol Lim, Gab Yong Kim, Ki Hoon Jang, Young Bok Yoon
  • Patent number: 11889172
    Abstract: A reflective module assembly include a housing having an internal space, a first reflective module provided in the housing to change a path of incident light, and a second reflective module provided in the housing to change a path of light emitted from the first reflective module. The first reflective module includes a first reflective member rotatable about a first axis formed by at least two first ball members. The second reflective module includes a second reflective member rotatable about a second axis, perpendicular to the first axis and passing through a rotation axis ball provided at the second reflective module.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: January 30, 2024
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Hwan Kwon, Soon Seok Kang, Nam Ki Park, Young Bok Yoon, Oh Byoung Kwon, Jae Won Jung
  • Publication number: 20230382940
    Abstract: Antiviral compounds and methods of using the same, singly or in combination with additional agents, and pharmaceutical compositions of said compounds for the treatment of viral infections are disclosed.
    Type: Application
    Filed: March 1, 2023
    Publication date: November 30, 2023
    Inventors: Byoung-Kwon Chun, Michael O. Clarke, Deeba Ensan, Rao V. Kalla, Richard L. Mackman, Devan Naduthambi, Dustin S. Siegel
  • Patent number: 11814406
    Abstract: Compounds and methods of using said compounds, singly or in combination with additional agents, and salts, crystalline forms, pharmaceutical compositions of said compounds for the treatment of viral infections are disclosed.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: November 14, 2023
    Assignee: Gilead Sciences, Inc.
    Inventors: Elaine Bunyan, Byoung-Kwon Chun, Kassibla E. Dempah, Hon C. Hui, Rao V. Kalla, Richard L. Mackman
  • Publication number: 20230322813
    Abstract: Compounds and methods of using said compounds, singly or in combination with additional agents, and salts or pharmaceutical compositions of said compounds for the treatment of viral infections are disclosed.
    Type: Application
    Filed: March 1, 2023
    Publication date: October 12, 2023
    Inventors: Byoung-Kwon Chun, Rao V. Kalla, Richard L. Mackman
  • Publication number: 20230303599
    Abstract: Compounds, compositions, and method useful for treating a viral infection, such as human immunodeficiency virus (HIV) and/or hepatitis B virus (HBV) infection, are disclosed. In particular, prodrugs of phosphonamide nucleotide analogues and methods for their preparation and use as therapeutic or prophylactic agents are disclosed.
    Type: Application
    Filed: August 5, 2021
    Publication date: September 28, 2023
    Inventors: Daniel H. Byun, Byoung-Kwon Chun, Michael O. Clarke, Petr Jansa, Devan Naduthambi, Neil H. Squires
  • Patent number: 11767337
    Abstract: The present disclosure provides compounds for treating a variety of diseases, such as respiratory syncytial virus (RSV), HRV, hMPV, Ebola, Zika, West Nile, Dengue, and HCV.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: September 26, 2023
    Assignee: GILEAD SCIENCES, INC.
    Inventors: Gregory F. Chin, Byoung-Kwon Chun, Michael O. Clarke, Bindu Goyal, Hon C. Hui, Petr Jansa, Richard L. Mackman, Dustin S. Siegel, Hai Yang
  • Publication number: 20230295201
    Abstract: The present disclosure provides compounds for treating a variety of diseases, such as respiratory syncytial virus (RSV), HRV, hMPV, ebola, Zika, West Nile, Dengue, and HCV.
    Type: Application
    Filed: February 21, 2023
    Publication date: September 21, 2023
    Inventors: Daniel H. Byun, Gregory F. Chin, Byoung-kwon Chun, Michael O. Clarke, Bindu Goyal, Hon C. Hui, Petr Jansa, Richard L. Mackman, Michael R. Mish, Dustin S. Siegel, David Sperandio, Hai Yang, Lijun Zhang
  • Patent number: 11728791
    Abstract: A switch control circuit and a switch control method are provided. The switch control circuit includes a load, an inductor, a control switch, and a sensing resistance connected in series to an input power source; an integrator that integrates a sensing voltage and a load current setting voltage to generate an integrated signal; a comparator that compares the integrated signal and a bias voltage; a switch driver that controls the control switch based on an output of the comparator and an output of an off time controller; and a gate sensor that outputs, to the integrator, a gate sensing signal that senses a time when an input of a gate terminal of the control switch becomes a low level. An integration operation is started from a position in which the integrated signal is located lower than the bias voltage, when an input of the gate terminal becomes a high level.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: August 15, 2023
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Jang Hyuck Lee, Joo Han Yoon, Byoung Kwon An
  • Patent number: 11718637
    Abstract: The present disclosure provides prodrugs of 4?-C-substituted-2-halo-2?-deoxyadenoside nucleosides, and compositions, methods, and kits thereof. Such compounds can be useful for treating viral infections including, but not limited to, human immunodeficiency virus.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: August 8, 2023
    Assignee: Gilead Sciences, Inc.
    Inventors: Daniel H. Byun, Byoung-Kwon Chun, Michael O. Clarke, Petr Jansa, Richard L. Mackman, Devan Naduthambi, Neil H. Squires
  • Publication number: 20230240094
    Abstract: Embodiments provide a slurry for polishing copper, a manufacturing method of a display device which uses the slurry, and the display device. The slurry for polishing copper includes an abrasive, a catalyst including a single molecule having an iron ion, a polishing suppressant, and an oxidizing agent.
    Type: Application
    Filed: January 20, 2023
    Publication date: July 27, 2023
    Applicants: Samsung Display Co., LTD., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Byoung Kwon CHOO, Jea Gun PARK, Seung Bae KANG, Sungjun KIM, Sung Hoon MOON
  • Publication number: 20230220280
    Abstract: An etching composition for a silver-containing thin film, the etching composition comprising an inorganic acid compound, a sulfonic acid compound, an organic acid compound, a nitrate, a metal oxidizing agent, an amino acid compound, and water.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 13, 2023
    Inventors: JONGHEE PARK, HYOUNG SIK KIM, O Byoung Kwon, Gi-Yong Nam, Kyungchan Min, SUCK JUN LEE, YOUNGMIN KIM, JINHYUNG KIM, DONGHUN LEE, KYU-HUN LIM, DONGMIN JANG