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Magnetic circuit

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  • H04R9/025
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Parent Industries

HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type

Current Industry

H04R9/025Magnetic circuit
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker and terminal
    • Patent number 12,368,998
    • Issue date Jul 22, 2025
    • Huawei Technologies Co., Ltd.
    • Peng Huo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    High amplitude micro loudspeaker with a double suspension frame
    • Patent number 12,368,999
    • Issue date Jul 22, 2025
    • BESTAR HOLDING CO., LTD.
    • Zhang Yonglei
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker device
    • Patent number 12,368,991
    • Issue date Jul 22, 2025
    • SHENZHEN SHOKZ CO., LTD.
    • Chaowu Li
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electrodynamic vibration exciter
    • Patent number 12,358,019
    • Issue date Jul 15, 2025
    • Continental Engineering Services GmbH
    • Philipp Neubauer
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Sounding device
    • Patent number 12,363,482
    • Issue date Jul 15, 2025
    • AAC Acoustic Technologies (Shenzhen) Co., Ltd.
    • Wei Song
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 12,363,483
    • Issue date Jul 15, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Xiwen Du
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Phantom powered FET circuit for audio application
    • Patent number 12,356,137
    • Issue date Jul 8, 2025
    • Cloud Microphones, LLC.
    • Rodger Cloud
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker box
    • Patent number 12,356,169
    • Issue date Jul 8, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Shasha Liu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multifunctional sound device
    • Patent number 12,356,128
    • Issue date Jul 8, 2025
    • AAC Technologies (Nanjing) Co., Ltd.
    • Lubin Mao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sounding device
    • Patent number 12,356,171
    • Issue date Jul 8, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Long Zhang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound device
    • Patent number 12,356,173
    • Issue date Jul 8, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Li Ren
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Display panel, display device, fabricating method and control metho...
    • Patent number 12,356,138
    • Issue date Jul 8, 2025
    • BOE Technology Group Co., Ltd.
    • Yaqian Ji
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Voice coil and speaker without coil former
    • Patent number 12,348,946
    • Issue date Jul 1, 2025
    • The United States of America, as represented by the Secretary of the Navy
    • John Miesner
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic transducer systems and methods of operating acoustic trans...
    • Patent number 12,342,144
    • Issue date Jun 24, 2025
    • Audera Acoustics Inc.
    • John B. French
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound generating device module
    • Patent number 12,342,145
    • Issue date Jun 24, 2025
    • GoerTek Inc.
    • Qizhong Wang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound device
    • Patent number 12,335,708
    • Issue date Jun 17, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Li Ren
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 12,335,712
    • Issue date Jun 17, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Huhu Yang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multifunctional sounding device
    • Patent number 12,335,710
    • Issue date Jun 17, 2025
    • AAC Technologies (Nanjing) Co., Ltd.
    • Lubin Mao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 12,335,705
    • Issue date Jun 17, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Dijiang Tong
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multifunctional sound device
    • Patent number 12,335,706
    • Issue date Jun 17, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Yun Tang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Double-sided speaker device
    • Patent number 12,335,707
    • Issue date Jun 17, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Xudong Yan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multifunctional sounding device
    • Patent number 12,335,711
    • Issue date Jun 17, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Xin Jin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 12,335,713
    • Issue date Jun 17, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Long Zhang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Display apparatus
    • Patent number 12,328,546
    • Issue date Jun 10, 2025
    • LG Display Co., Ltd.
    • Jusang Rhim
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Integrated bone conduction sound generating device and method
    • Patent number 12,328,549
    • Issue date Jun 10, 2025
    • THUNDER BLAST TECHNOLOGY CO., LIMITED
    • Lei Ma
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Hybrid ring-radiator headphone driver
    • Patent number 12,328,545
    • Issue date Jun 10, 2025
    • Voyetra Turtle Beach, Inc.
    • David Zepp
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker circuitry
    • Patent number 12,323,777
    • Issue date Jun 3, 2025
    • GP ACOUSTICS INTERNATIONAL LIMITED
    • Sebastien Degraeve
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound generation device and electronic apparatus
    • Patent number 12,323,781
    • Issue date Jun 3, 2025
    • GoerTek Inc.
    • Chunfa Liu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Elliptical ring radiator diaphragm, tweeter and damping method
    • Patent number 12,323,759
    • Issue date Jun 3, 2025
    • POLK AUDIO, LLC
    • Sean O'Brien
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Vibration sounding device
    • Patent number 12,317,047
    • Issue date May 27, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Zhang Ren
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTI-GAP MAGNETIC MOTOR FOR USE IN LOUDSPEAKERS
    • Publication number 20250240575
    • Publication date Jul 24, 2025
    • ALPS ALPINE CO., LTD.
    • Alan Robert Cross
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER MODULE AND ELECTRONIC DEVICE
    • Publication number 20250240576
    • Publication date Jul 24, 2025
    • Honor Device Co., Ltd.
    • Dengcheng SUN
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DIAPHRAGM AND SPEAKER UNIT
    • Publication number 20250240574
    • Publication date Jul 24, 2025
    • Onkyo Corporation
    • Takeshi FUJITANI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER
    • Publication number 20250240573
    • Publication date Jul 24, 2025
    • ASK Industries S.p.A.
    • Claudio PANNI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUNDING DEVICE
    • Publication number 20250234135
    • Publication date Jul 17, 2025
    • MERRY ELECTRONICS (SUZHOU) CO., LTD.
    • Jiawei Zhu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER OUTPUT CHARACTERISTIC CORRECTION SYSTEM AND ACOUSTIC SYSTEM
    • Publication number 20250227413
    • Publication date Jul 10, 2025
    • ALPS ALPINE CO., LTD.
    • Yuji SAITO
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER BOX
    • Publication number 20250227409
    • Publication date Jul 10, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Yun Tang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SYSTEM, APPARATUS AND METHODS FOR COUPLING A VOICE COIL ASSEMBLY AN...
    • Publication number 20250227419
    • Publication date Jul 10, 2025
    • Tectonic Audio Labs, Inc.
    • Timothy C. Whitwell
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    GLASS DIAPHRAGM EQUIPPED WITH EXCITER, CONTROL SYSTEM FOR GLASS DIA...
    • Publication number 20250227408
    • Publication date Jul 10, 2025
    • AGC Inc.
    • Kento SAKURAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    RUBBER DIAPHRAGM, SOUND DEVICE AND APPLICATION THEREOF
    • Publication number 20250227417
    • Publication date Jul 10, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Yuanwei Su
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ACOUSTIC OUTPUT APPARATUS
    • Publication number 20250220357
    • Publication date Jul 3, 2025
    • SHENZHEN SHOKZ CO., LTD.
    • Liwei WANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER
    • Publication number 20250220355
    • Publication date Jul 3, 2025
    • Tymphany HK Limited
    • Andrew Trippier Holt
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20250220354
    • Publication date Jul 3, 2025
    • MERRY ELECTRONICS (SUZHOU) CO., LTD.
    • JinGui WANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND DEVICE
    • Publication number 20250211910
    • Publication date Jun 26, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Zhang Ren
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20250211912
    • Publication date Jun 26, 2025
    • MERRY ELECTRONICS (SUZHOU) CO., LTD.
    • JinGui WANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUNDING DEVICE
    • Publication number 20250211911
    • Publication date Jun 26, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Ronglin Linghu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20250211913
    • Publication date Jun 26, 2025
    • MERRY ELECTRONICS (SUZHOU) CO., LTD.
    • JinGui WANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DISPLAY DEVICE
    • Publication number 20250211884
    • Publication date Jun 26, 2025
    • Panasonic Intellectual Property Management Co., Ltd.
    • Masahiro YUKAWA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20250203259
    • Publication date Jun 19, 2025
    • AAC Microtech (Changzhou) Co., Ltd.
    • Yang Shi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Vibration Motor
    • Publication number 20250203277
    • Publication date Jun 19, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Lubin Mao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20250203292
    • Publication date Jun 19, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Chao Zhang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    GLASSES
    • Publication number 20250199340
    • Publication date Jun 19, 2025
    • SHENZHEN SHOKZ CO., LTD.
    • Yueqiang WANG
    • G02 - OPTICS
  • Information Patent Application

    HORIZONTALLY-CHARGING SMART ACOUSTIC SYSTEM
    • Publication number 20250202255
    • Publication date Jun 19, 2025
    • JIANGXI TAIDE INTELLIGENCE TECHNOLOGY CO., LTD.
    • Qian ZHANG
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    PLANAR VOICE COIL, PLANAR VOICE COIL SUBSTRATE, AND MANUFACTURING M...
    • Publication number 20250203293
    • Publication date Jun 19, 2025
    • PHOENIX PIONEER TECHNOLOGY CO., LTD.
    • PAO-HUNG CHOU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    LOUDSPEAKER AND LOUDSPEAKER MANUFACTURING METHOD
    • Publication number 20250203260
    • Publication date Jun 19, 2025
    • Panasonic Automotive Systems Co., Ltd.
    • Kengo TAKEDA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    INTEGRATED SOUNDING COMPONENT
    • Publication number 20250203273
    • Publication date Jun 19, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Hailin Liu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker Module
    • Publication number 20250203274
    • Publication date Jun 19, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Hailin Liu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND-PRODUCING DEVICE
    • Publication number 20250184661
    • Publication date Jun 5, 2025
    • SHENZHEN SHOKZ CO., LTD.
    • Zhen WANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20250184668
    • Publication date Jun 5, 2025
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Qun Xiang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND PRODUCTION DEVICE AND ELECTRONIC APPARATUS
    • Publication number 20250184669
    • Publication date Jun 5, 2025
    • Goertek Inc.
    • Xiaodong CAI
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE