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Hyo Shik Choi

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  • Ansan-si, KR
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    LIGHT EMITTING DEVICE AND DISPLAY DEVICE HAVING THE SAME
    • Publication number 20240379910
    • Publication date Nov 14, 2024
    • Seoul Viosys Co., Ltd.
    • Yeon Kyu PARK
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    LIGHT EMITTING MODULE AND SYSTEM INCLUDING THE SAME
    • Publication number 20240304605
    • Publication date Sep 12, 2024
    • Seoul Viosys Co., Ltd.
    • Hyo Shik CHOI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    HIGH-EFFICIENCY LONG-WAVELENGTH LIGHT-EMITTING DEVICE
    • Publication number 20190296187
    • Publication date Sep 26, 2019
    • Seoul Viosys Co., Ltd.
    • Hong Jae YOO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    UV LIGHT EMITTING DEVICE
    • Publication number 20180090640
    • Publication date Mar 29, 2018
    • Seoul Viosys Co., Ltd.
    • Chang Seok Han
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ULTRAVIOLET LIGHT-EMITTING DEVICE
    • Publication number 20170125634
    • Publication date May 4, 2017
    • Seoul Viosys Co., Ltd.
    • Hyo Shik Choi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    NEAR UV LIGHT EMITTING DEVICE
    • Publication number 20160225950
    • Publication date Aug 4, 2016
    • Seoul Viosys Co., Ltd.
    • Chang Suk HAN
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    ULTRAVIOLET LIGHT-EMITTING DEVICE
    • Publication number 20160064598
    • Publication date Mar 3, 2016
    • Seoul Viosys Co., Ltd.
    • Hyo Shik Choi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    METHOD OF FABRICATING A NITRIDE SUBSTRATE
    • Publication number 20150364319
    • Publication date Dec 17, 2015
    • Seoul Viosys Co., Ltd.
    • Ki Yon PARK
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    UV LIGHT EMITTING DEVICE
    • Publication number 20150333218
    • Publication date Nov 19, 2015
    • Seoul Viosys Co., Ltd.
    • Chang Suk HAN
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    UV LIGHT EMITTING DIODE AND METHOD OF FABRICATING THE SAME
    • Publication number 20150144874
    • Publication date May 28, 2015
    • Seoul Viosys Co., Ltd.
    • Ki Yon Park
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    NEAR UV LIGHT EMITTING DEVICE
    • Publication number 20150041760
    • Publication date Feb 12, 2015
    • Seoul Viosys Co., Ltd.
    • Chang Suk HAN
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    PHOTO DETECTION DEVICE
    • Publication number 20140197454
    • Publication date Jul 17, 2014
    • Seoul Viosys Co., Ltd.
    • Ki Yon PARK
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    NEAR UV LIGHT EMITTING DEVICE
    • Publication number 20130256630
    • Publication date Oct 3, 2013
    • SEOUL OPTO DEVICE CO., LTD.
    • Chang Suk HAN
    • H01 - BASIC ELECTRIC ELEMENTS