PATENT

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    Changzhou AMT Co.,Ltd are continuously developing new state of the art technology for acoustic applications, and by using our more than 20 years design experiences we have managed to innovate technologies so we have been needed to apply for more than 100 patents.
    Patent.No Patent.Type Patent.Name Application.Date Registration Authority
    2016204587777 Utility model Vertically vibrating vibrator 2016-5-19 SIPO
    2016204584213 Utility model A new type of moving iron unit 2016-5-19 SIPO
    2016203418339 Utility model Compact magnetic vibrator 2016-4-21 SIPO
    2016203417020 Utility model A dynamic iron unit PCB circuit board convenient for installing a capacitor 2016-4-21 SIPO
    2016202469013 Utility model A moving iron unit with a double guide needle 2016-3-28 SIPO
    2016202469297 Utility model Balanced armature and guide pin snap-in connection structure 2016-3-28 SIPO
    2016202191328 Utility model An improved moving iron type vibrator 2016-3-21 SIPO
    2016201357504 Utility model A silver-coated copper wire coil and its speakers 2016-2-23 SIPO
    2016200651365 Utility model Magnetic vibrator 2016-1-22 SIPO
    2016200262738 Utility model A balanced armature vibrator 2016-1-12 SIPO
    2015210625146 Utility model A graphene moving coil speaker 2015-12-17 SIPO
    2015210606855 Utility model Dynamic graph speaker of moving coil speaker and dynamic coil speaker applied thereto 2015-12-17 SIPO
    2015210618814 Utility model Rotary speaker structure of pot frame and moving coil speaker 2015-12-17 SIPO
    2015210638112 Utility model Sound coil and moving coil speaker of moving coil speaker 2015-12-17 SIPO
    2015210084997 Utility model A graphene coil for a speaker 2015-12-8 SIPO
    2015210100951 Utility model Plane diaphragm for double-sided printed graphene coil 2015-12-8 SIPO
    2015209371384 Utility model Double moving iron unit combination structure 2015-11-19 SIPO
    2015208441765 Utility model Liquid metal headphones 2015-10-28 SIPO
    2015208457481 Utility model Liquid metal in-ear earphone 2015-10-28 SIPO
    2015208460639 Utility model Headphone liquid metal plug 2015-10-28 SIPO
    2015208460658 Utility model Headphone liquid metal stent 2015-10-28 SIPO
    2015208461167 Utility model Liquid metal earphone shell 2015-10-28 SIPO
    2015208457496 Utility model Graphene headphone 2015-10-28 SIPO
    2015208428648 Utility model Graphene in-ear earphone 2015-10-28 SIPO
    2015208447456 Utility model Headset graphene stent 2015-10-28 SIPO