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Guoqiang Chai

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  • Suzhou City, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vehicle-mounted woofer device and design method therefor
    • Patent number 12,356,136
    • Issue date Jul 8, 2025
    • SUZHOU SONAVOX ELECTRONICS CO., LTD
    • Xiafeng Xue
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Tweeter and automobile audio system
    • Patent number 12,294,847
    • Issue date May 6, 2025
    • SUZHOU SONAVOX ELECT/RONICS CO., LTD.
    • Yuewu Shen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Magnetic circuit of loudspeaker and loudspeaker
    • Patent number 11,962,987
    • Issue date Apr 16, 2024
    • SUZHOU SONAVOX ELECTRONICS CO., LTD
    • Yuewu Shen
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Mid-range loudspeaker
    • Patent number 11,950,072
    • Issue date Apr 2, 2024
    • SUZHOU SONAVOX ELECTRONICS CO., LTD
    • Guoqiang Chai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker system
    • Patent number 11,849,277
    • Issue date Dec 19, 2023
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Yuewu Shen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker packaging device and package body
    • Patent number 11,312,530
    • Issue date Apr 26, 2022
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Yu Wang
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    High-pitched loudspeaker
    • Patent number 11,290,822
    • Issue date Mar 29, 2022
    • SUZHOU SONAVOX ELECTRONICS CO., LTD
    • Peng Gao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pedestrian warning device having grille cover
    • Patent number 11,279,278
    • Issue date Mar 22, 2022
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Xiafeng Xue
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Coaxial loudspeaker
    • Patent number 11,089,400
    • Issue date Aug 10, 2021
    • SUZHOU SONAVOX ELECTRONICS CO., LTD
    • Shenggang Tao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Automotive headrest
    • Patent number 10,960,803
    • Issue date Mar 30, 2021
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Tingting Fu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Implementation method and device of multi-bit modulation-based digi...
    • Patent number 9,942,682
    • Issue date Apr 10, 2018
    • Dengyong Ma
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Diaphragm
    • Patent number 9,042,580
    • Issue date May 26, 2015
    • Suzhou Sonavox Electronics Co., Ltd
    • Peng Gao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    All-digital speaker system device
    • Patent number 8,620,005
    • Issue date Dec 31, 2013
    • Suzhou Sonavox Eletronics Co., Ltd.
    • Dengyong Ma
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    SYSTEM AND METHOD FOR VERIFYING POWER AMPLIFIER OF ON-BOARD AUDIO S...
    • Publication number 20240373185
    • Publication date Nov 7, 2024
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Yongshuang XU
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    LOUDSPEAKER AND AUDIO SYSTEM
    • Publication number 20240098402
    • Publication date Mar 21, 2024
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Peng GAO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    VEHICLE-MOUNTED WOOFER DEVICE AND DESIGN METHOD THEREFOR
    • Publication number 20240031731
    • Publication date Jan 25, 2024
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Xiafeng Xue
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    COAXIAL LOUDSPEAKER WITH HORN AND SHAPE OPTIMIZATION METHOD THEREFOR
    • Publication number 20240015431
    • Publication date Jan 11, 2024
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Mingwei LU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    TWEETER AND AUTOMOBILE AUDIO SYSTEM
    • Publication number 20230179924
    • Publication date Jun 8, 2023
    • Suzhou Sonavox Electronics Co., Ltd
    • Yuewu SHEN
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER SYSTEM
    • Publication number 20230138715
    • Publication date May 4, 2023
    • Suzhou Sonavox Electronics Co., Ltd
    • Yuewu SHEN
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MAGNETIC CIRCUIT OF LOUDSPEAKER AND LOUDSPEAKER
    • Publication number 20220232325
    • Publication date Jul 21, 2022
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Yuewu SHEN
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    MID-RANGE LOUDSPEAKER
    • Publication number 20220150639
    • Publication date May 12, 2022
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Guoqiang CHAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    PEDESTRIAN ALERT DEVICE FOR ELECTRIC VEHICLE
    • Publication number 20220005345
    • Publication date Jan 6, 2022
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Hongbing DING
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    PEDESTRIAN WARNING DEVICE HAVING GRILLE COVER
    • Publication number 20210309146
    • Publication date Oct 7, 2021
    • Suzhou Sonavox Electronics Co., Ltd
    • Xiafeng Xue
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Speaker Packaging Device and Package Body
    • Publication number 20210130034
    • Publication date May 6, 2021
    • Yu Wang
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    A COAXIAL LOUDSPEAKER
    • Publication number 20210136482
    • Publication date May 6, 2021
    • SUZHOU SONAVOX ELECTRONICS CO., LTD
    • SHENGGANG TAO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    A HIGH-PITCHED LOUDSPEAKER
    • Publication number 20210099803
    • Publication date Apr 1, 2021
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • PENG GAO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Automotive Headrest
    • Publication number 20200010002
    • Publication date Jan 9, 2020
    • Suzhou Sonavox Electronics Co., Ltd
    • Tingting Fu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    IMPLEMENTATION METHOD AND DEVICE OF MULTI-BIT MODULATION-BASED DIG...
    • Publication number 20160309274
    • Publication date Oct 20, 2016
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • DENGYONG MA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Diaphragm
    • Publication number 20140119577
    • Publication date May 1, 2014
    • Suzhou Sonavox Electronics Co., Ltd
    • Peng Gao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DIAPHRAGM USED IN A LOUDSPEAKER AND A LOUDSPEAKER
    • Publication number 20120269379
    • Publication date Oct 25, 2012
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Peng GAO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    All-digital speaker system device
    • Publication number 20120099740
    • Publication date Apr 26, 2012
    • SUZHOU SONAVOX ELETRONICS CO., LTD.
    • Dengyong Ma
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE