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Yu ZHU

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  • Zhangjiajie, CN
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Patents Applicationslast 30 patents

  • Information Patent Application

    DEVELOPING CARTRIDGE
    • Publication number 20250181025
    • Publication date Jun 5, 2025
    • ZHUHAI YANQI TECHNOLOGY CO., LTD.
    • Yu ZHU
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING CARTRIDGE
    • Publication number 20250013189
    • Publication date Jan 9, 2025
    • E-Z INK TECHNOLOGY CO., LTD
    • Yu ZHU
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY