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Qiang Dan

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  • Shenzhen, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piezoelectric speaker
    • Patent number 12,015,896
    • Issue date Jun 18, 2024
    • AAC KAITAI TECHNOLOGIES (WUHAN) CO., LTD
    • Yu Shen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker having first diaphragm, second diaphragm with different sti...
    • Patent number 11,968,507
    • Issue date Apr 23, 2024
    • AAC Kaital Technologies (Wuhan) CO., LTD
    • Shiyang Cheng
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound production device
    • Patent number 11,950,070
    • Issue date Apr 2, 2024
    • AAC KAITAI TECHNOLOGIES (WUHAN) CO., LTD
    • Qiang Dan
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    MEMS speaker
    • Patent number 11,910,155
    • Issue date Feb 20, 2024
    • AAC Kaital Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    MEMS speaker and speaker assembly structure
    • Patent number 11,895,464
    • Issue date Feb 6, 2024
    • AAC Microtech (Changzhou) Co., Ltd.
    • Yu Shen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    ACOUSTIC TRANSDUCER AND METHOD FOR MANUFACTURING ACOUSTIC TRANSDUCER
    • Publication number 20240284119
    • Publication date Aug 22, 2024
    • AAC TECHNOLOGIES PTE. LTD
    • KianHeng Goh
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ACOUSTIC TRANSDUCER AND METHOD FOR MANUFACTURING ACOUSTIC TRANSDUCER
    • Publication number 20240284120
    • Publication date Aug 22, 2024
    • AAC Technologies Pte. Ltd.
    • KianHeng Goh
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    METHOD FOR MANUFACTURING MEMS ACOUSTIC SENSOR
    • Publication number 20240284131
    • Publication date Aug 22, 2024
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MEMS LOUDSPEAKER MANUFACTURING METHOD AND MEMS LOUDSPEAKER
    • Publication number 20240174513
    • Publication date May 30, 2024
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    Earphone
    • Publication number 20240121538
    • Publication date Apr 11, 2024
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Yu Shen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MEMS PIEZOELECTRIC SPEAKER
    • Publication number 20240114795
    • Publication date Apr 4, 2024
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Yu Shen
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    MEMS Speaker
    • Publication number 20230412988
    • Publication date Dec 21, 2023
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MEMS speaker
    • Publication number 20230283947
    • Publication date Sep 7, 2023
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MEMS speaker
    • Publication number 20230283965
    • Publication date Sep 7, 2023
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Piezoelectric Speaker
    • Publication number 20230232160
    • Publication date Jul 20, 2023
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Yu Shen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND PRODUCTION DEVICE
    • Publication number 20230217174
    • Publication date Jul 6, 2023
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MEMS SPEAKER AND SPEAKER ASSEMBLY STRUCTURE
    • Publication number 20230217192
    • Publication date Jul 6, 2023
    • AAC Microtech (Changzhou) Co., Ltd.
    • Yu Shen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20230094844
    • Publication date Mar 30, 2023
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Shiyang Cheng
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MEMS SPEAKER AND MANUFACTURING METHOD FOR SAME
    • Publication number 20230007406
    • Publication date Jan 5, 2023
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Shiyang Cheng
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    MEMS Acoustic Sensor
    • Publication number 20220417671
    • Publication date Dec 29, 2022
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • B81 - MICRO-STRUCTURAL TECHNOLOGY
  • Information Patent Application

    MEMS Speaker
    • Publication number 20220417668
    • Publication date Dec 29, 2022
    • AAC Kaitai Technologies (Wuhan) CO., LTD
    • Qiang Dan
    • B81 - MICRO-STRUCTURAL TECHNOLOGY