TREA

Hongxing DING

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  • Hangzhou, CN
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ZOOM LENS
    • Publication number 20230244068
    • Publication date Aug 3, 2023
    • Zhejiang Dahua Technology CO., LTD.
    • Yuanyuan XING
    • G02 - OPTICS
  • Information Patent Application

    ZOOM LENS AND OPTICAL DEVICE HAVING THE SAME
    • Publication number 20220082806
    • Publication date Mar 17, 2022
    • Zhejiang Dahua Technology CO., LTD.
    • Kai LIU
    • G02 - OPTICS
  • Information Patent Application

    ZOOM LENS AND OPTICAL DEVICE HAVING THE SAME
    • Publication number 20210215917
    • Publication date Jul 15, 2021
    • Zhejiang Dahua Technology CO., LTD.
    • Kai LIU
    • G02 - OPTICS
  • Information Patent Application

    LENS SYSTEM AND IMAGING DEVICE
    • Publication number 20200218036
    • Publication date Jul 9, 2020
    • ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    • Kai LIU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LENS SYSTEM AND IMAGING DEVICE
    • Publication number 20200201006
    • Publication date Jun 25, 2020
    • Zhejiang Dahua Technology CO., LTD.
    • Changtao HU
    • G02 - OPTICS
  • Information Patent Application

    A ZOOM LENS SYSTEM
    • Publication number 20180373003
    • Publication date Dec 27, 2018
    • Zhejiang Dahua Technology CO., LTD.
    • Kai LIU
    • G02 - OPTICS