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Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers

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  • H04R2209/024
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HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS H04R2209/00Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups

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H04R2209/024Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Double-sided speaker
    • Patent number 12,200,462
    • Issue date Jan 14, 2025
    • SHENZHEN LUXSHARE ACOUSTICS TECHNOLOGY LTD.
    • ZhiHua Tong
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker with a fin-reinforced voice coil structure
    • Patent number 12,101,617
    • Issue date Sep 24, 2024
    • HAINING XIMINI TECHNOLOGY CO., LTD.
    • Wei Zhang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Balanced armature receiver having damping compound-locating structure
    • Patent number 12,063,481
    • Issue date Aug 13, 2024
    • Knowles Electronics, LLC
    • Christopher L. Monti
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dual function transducer
    • Patent number 12,063,494
    • Issue date Aug 13, 2024
    • Apple Inc.
    • Rebecca J. Russell
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Conductive film for a sound generation device and the sound generat...
    • Patent number 12,035,121
    • Issue date Jul 9, 2024
    • GoerTek Inc.
    • Xiaodong Guo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 12,003,937
    • Issue date Jun 4, 2024
    • AAC Microtech (Changzhou) Co., Ltd.
    • Weimin Chen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker motor with improved linearity
    • Patent number 11,956,612
    • Issue date Apr 9, 2024
    • Purifi APS
    • Lars Risbo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multi-input-driving loudspeaker
    • Patent number 11,943,598
    • Issue date Mar 26, 2024
    • SUZHOU SONAVOX ELECTRONICS CO., LTD
    • Jianming Zhou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multi-input-driving loudspeaker
    • Patent number 11,877,136
    • Issue date Jan 16, 2024
    • SUZHOU RUSHENG ELECTRONICS CO., LTD.
    • Jianming Zhou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker and electronic device
    • Patent number 11,856,384
    • Issue date Dec 26, 2023
    • AAC Microtech (Changzhou) Co., Ltd.
    • Keyong Zhou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dual function transducer
    • Patent number 11,785,392
    • Issue date Oct 10, 2023
    • Apple Inc.
    • Rebecca J. Mikolajczyk
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 11,622,200
    • Issue date Apr 4, 2023
    • AAC Microtech (Changzhou) Co., Ltd.
    • Bo Xiao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker device
    • Patent number 11,617,032
    • Issue date Mar 28, 2023
    • Pioneer Corporation
    • Kazuaki Watanabe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Armature and a transducer comprising the armature
    • Patent number 11,438,700
    • Issue date Sep 6, 2022
    • Sonion Nederland B.V.
    • Rasmus Voss
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Wearable audio device
    • Patent number 11,272,282
    • Issue date Mar 8, 2022
    • Bose Corporation
    • Josue Malaver
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electro-magnetic motor geometry with radial ring and axial pole magnet
    • Patent number 11,245,986
    • Issue date Feb 8, 2022
    • Bose Corporation
    • Christopher J. Link
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Apparatus with surface to be displaced
    • Patent number 11,234,080
    • Issue date Jan 25, 2022
    • PS AUDIO DESIGN OY
    • Vesa Kajanus
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker includes a second fixing arm of an elastic supporting membe...
    • Patent number 11,202,154
    • Issue date Dec 14, 2021
    • AAC Technologies Pte. Ltd.
    • Kaitai Pan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Dual function transducer
    • Patent number 11,070,920
    • Issue date Jul 20, 2021
    • Apple Inc.
    • Rebecca J. Mikolajczyk
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Speaker device
    • Patent number 10,932,025
    • Issue date Feb 23, 2021
    • Pioneer Corporation
    • Kazuaki Watanabe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker unit with multiple drive units
    • Patent number 10,893,367
    • Issue date Jan 12, 2021
    • Mayht Holding B.V.
    • Mattias Jeffrey Scheek
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Sound generator
    • Patent number 10,764,687
    • Issue date Sep 1, 2020
    • AAC Technologies Pte. Ltd.
    • Jiasheng Zhou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 10,659,884
    • Issue date May 19, 2020
    • AAC Technologies Pte. Ltd.
    • Chengming Cao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    System and method for applying a sound signal to a multi coil elect...
    • Patent number 10,623,865
    • Issue date Apr 14, 2020
    • AAC Technologies Pte. Ltd.
    • Friedrich Reining
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pneumatic tweeter unit having improved sound diaphragm and structure
    • Patent number 10,623,848
    • Issue date Apr 14, 2020
    • Ko-Chung Teng
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic device
    • Patent number 10,602,277
    • Issue date Mar 24, 2020
    • AAC Technologies Pte. Ltd.
    • Bo Xiao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Apparatus for generating vibration
    • Patent number 10,587,957
    • Issue date Mar 10, 2020
    • PS AUDIO DESIGN OY
    • Vesa Kajanus
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker device
    • Patent number 10,560,770
    • Issue date Feb 11, 2020
    • Pioneer Corporation
    • Kazuaki Watanabe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Corrosion resistant magnet assembly
    • Patent number 10,553,352
    • Issue date Feb 4, 2020
    • Apple Inc.
    • Wai Man Raymund Kwok
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Armature and a transducer comprising the armature
    • Patent number 10,516,947
    • Issue date Dec 24, 2019
    • Sonion Nederland B.V.
    • Rasmus Voss
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    SOUND ACTUATOR WITH ROBUST POSITIONING OF MAGNETIC POLE PLATE PACKETS
    • Publication number 20250030983
    • Publication date Jan 23, 2025
    • Continental Engineering Services GmbH
    • Philipp Neubauer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER STRUCTURE AND LOUDSPEAKER DEVICE
    • Publication number 20240373170
    • Publication date Nov 7, 2024
    • LUXSHARE ELECTRONIC TECHNOLOGY (KUNSHAN) LTD.
    • Kai YANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MULTI-INPUT-DRIVING LOUDSPEAKER
    • Publication number 20240244380
    • Publication date Jul 18, 2024
    • Suzhou Sonavox Electronics Co., Ltd
    • Jianming ZHOU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    TRANSDUCERS AND MANUFACTURING METHODS THEREOF
    • Publication number 20240223956
    • Publication date Jul 4, 2024
    • Tymphany HK Limited
    • Andrew Trippier Holt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20240022845
    • Publication date Jan 18, 2024
    • PIONEER CORPORATION
    • Kazuaki Watanabe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DUAL FUNCTION TRANSDUCER
    • Publication number 20240007796
    • Publication date Jan 4, 2024
    • Apple Inc.
    • Rebecca J. Mikolajczyk
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER WITH IMPROVED FREQUENCY RESPONSE AND RELATED ELECTRONIC SOU...
    • Publication number 20230403512
    • Publication date Dec 14, 2023
    • Sound Solutions International (Zhenjiang) Co., Ltd.
    • Hong-Bi Dong Nguyen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER
    • Publication number 20230362536
    • Publication date Nov 9, 2023
    • Kaetel Systems GmbH
    • Klaus KAETEL
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DOUBLE-SIDED SPEAKER
    • Publication number 20230232156
    • Publication date Jul 20, 2023
    • Shenzhen Luxshare Acoustics Technology Ltd.
    • ZhiHua TONG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20230199395
    • Publication date Jun 22, 2023
    • AAC Microtech (Changzhou) Co., Ltd.
    • Weimin Chen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER AND ELECTRONIC DEVICE
    • Publication number 20230148010
    • Publication date May 11, 2023
    • AAC Microtech (Changzhou) Co., Ltd.
    • Keyong Zhou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    IMPROVEMENTS IN AND RELATING TO LOUDSPEAKER MAGNET ASSEMBLIES
    • Publication number 20230117602
    • Publication date Apr 20, 2023
    • B&W GROUP LTD
    • Martial Andre Robert Rousseau
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER WITH A FIN-REINFORCED VOICE COIL STRUCTURE
    • Publication number 20230019916
    • Publication date Jan 19, 2023
    • HAINING XIMINI TECHNOLOGY CO., LTD.
    • Wei Zhang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    CONDUCTIVE FILM FOR A SOUND GENERATION DEVICE AND THE SOUND GENERAT...
    • Publication number 20220345826
    • Publication date Oct 27, 2022
    • Goertek Inc.
    • Xiaodong GUO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MULTI-INPUT-DRIVING LOUDSPEAKER
    • Publication number 20220248143
    • Publication date Aug 4, 2022
    • Jianming ZHOU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    MULTI-INPUT-DRIVING LOUDSPEAKER
    • Publication number 20220240021
    • Publication date Jul 28, 2022
    • SUZHOU SONAVOX ELECTRONICS CO., LTD.
    • Jianming ZHOU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20220210572
    • Publication date Jun 30, 2022
    • AAC Microtech (Changzhou) Co., Ltd.
    • Bo Xiao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER MOTOR WITH IMPROVED LINEARITY
    • Publication number 20220141592
    • Publication date May 5, 2022
    • Purifi APS
    • Lars Risbo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20210168480
    • Publication date Jun 3, 2021
    • PIONEER CORPORATION
    • Kazuaki Watanabe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DUAL FUNCTION TRANSDUCER
    • Publication number 20210099804
    • Publication date Apr 1, 2021
    • Apple Inc.
    • Rebecca J. Mikolajczyk
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Speaker
    • Publication number 20210029464
    • Publication date Jan 28, 2021
    • AAC Technologies Pte. Ltd.
    • Kaitai Pan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    APPARATUS WITH SURFACE TO BE DISPLACED
    • Publication number 20200169815
    • Publication date May 28, 2020
    • PS AUDIO DESIGN OY
    • Vesa Kajanus
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER DEVICE
    • Publication number 20200112781
    • Publication date Apr 9, 2020
    • PIONEER CORPORATION
    • Kazuaki Watanabe
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SINGLE-MAGNET DOUBLE-TONE-CIRCUIT COAXIAL LOUDSPEAKER
    • Publication number 20200107112
    • Publication date Apr 2, 2020
    • Tymphany Acoustic Technology (Huizhou) Co., Ltd.
    • TUNG-KO James LU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Sound Generator
    • Publication number 20200045440
    • Publication date Feb 6, 2020
    • AAC Technologies Pte. Ltd.
    • Jiasheng Zhou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ACOUSTIC DEVICE
    • Publication number 20190230442
    • Publication date Jul 25, 2019
    • AAC Technologies Pte. Ltd.
    • Bo Xiao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20190215612
    • Publication date Jul 11, 2019
    • AAC Technologies Pte. Ltd.
    • Chengming Cao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Sound Transducer
    • Publication number 20190141454
    • Publication date May 9, 2019
    • Nokia Technologies Oy
    • Shengrong SHI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    APPARATUS FOR GENERATING VIBRATION
    • Publication number 20190028809
    • Publication date Jan 24, 2019
    • PS AUDIO DESIGN OY
    • Vesa Kajanus
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SYSTEM AND METHOD FOR APPLYING A SOUND SIGNAL TO A MULTI COIL ELECT...
    • Publication number 20180279052
    • Publication date Sep 27, 2018
    • Sound Solutions International Co., Ltd.
    • Friedrich Reining
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE