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Magnetic circuit

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  • CPC
  • 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 method of manufacturing a speaker
    • Patent number 11,985,492
    • Issue date May 14, 2024
    • Sony Group Corporation
    • Naoki Shinmen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Earphone module
    • Patent number 11,979,727
    • Issue date May 7, 2024
    • Cresyn Co., Ltd.
    • Jong Bae Lee
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Glasses
    • Patent number 11,977,275
    • Issue date May 7, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Yueqiang Wang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 11,979,728
    • Issue date May 7, 2024
    • Alps Alpine Co., Ltd.
    • Hiroki Toita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound-producing device
    • Patent number 11,979,729
    • Issue date May 7, 2024
    • GOERTEK INC.
    • Jianbin Yang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Vibration sound device for electronic product and electronic product
    • Patent number 11,979,725
    • Issue date May 7, 2024
    • GoerTek Inc.
    • Yueguang Zhu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker driver with two opposite magnets
    • Patent number 11,979,726
    • Issue date May 7, 2024
    • Devialet
    • Jean-Loup Afresne
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Linear movement bistable electromagnetic switch
    • Patent number 11,979,708
    • Issue date May 7, 2024
    • CHUANDONG MAGNETIC ELECTRONICS CO., LTD.
    • Li Feng
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Apparatus and methods for bone conduction speaker
    • Patent number 11,974,091
    • Issue date Apr 30, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Jinbo Zheng
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Audio transducers
    • Patent number 11,968,510
    • Issue date Apr 23, 2024
    • Wing Acoustics Limited
    • David John Palmer
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Vibration sounding device
    • Patent number 11,968,513
    • Issue date Apr 23, 2024
    • AAC Microtech (Changzhou) Co., Ltd.
    • Bo Xiao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Vibration sounding device
    • Patent number 11,968,514
    • Issue date Apr 23, 2024
    • AAC Microtech (Changzhou) Co., Ltd.
    • Bo Xiao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multifunctional sounding device
    • Patent number 11,968,515
    • Issue date Apr 23, 2024
    • AAC Microtech (Changzhou) Co., Ltd.
    • Bo Xiao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker and loudspeaker device
    • Patent number 11,968,511
    • Issue date Apr 23, 2024
    • GoerTek Inc.
    • Kekang Zhao
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker devices with dual-transducers
    • Patent number 11,968,512
    • Issue date Apr 23, 2024
    • Hewlett-Packard Development Company, L.P.
    • Yen-Hsin Ho
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker apparatus
    • Patent number 11,968,494
    • Issue date Apr 23, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Yongjian Li
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Rear shell of display device and display device
    • Patent number 11,962,961
    • Issue date Apr 16, 2024
    • HEFEI BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD.
    • Hanqun Xu
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Speaker diaphragm and speaker
    • Patent number 11,962,986
    • Issue date Apr 16, 2024
    • GOERTEK INC.
    • Ting Wang
    • B32 - LAYERED PRODUCTS
  • 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

    Linear motor magnet assembly and loudspeaker unit
    • Patent number 11,962,988
    • Issue date Apr 16, 2024
    • Mayht Holding B.V.
    • Timothy Ruben Scheek
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number 11,960,147
    • Issue date Apr 16, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Yueqiang Wang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker device
    • Patent number 11,956,614
    • Issue date Apr 9, 2024
    • AAC Microtech (Changzhou) Co., Ltd.
    • Huhu Yang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    PMD speaker mounting assembly and thermal control system for multip...
    • Patent number 11,956,589
    • Issue date Apr 9, 2024
    • Wisdom Audio Corp
    • George E. Short
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic output device
    • Patent number 11,956,591
    • Issue date Apr 9, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Junjiang Fu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Barometric vent stack-up design to improve water performance
    • Patent number 11,956,611
    • Issue date Apr 9, 2024
    • Apple Inc.
    • Jiahui Liang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound-output device
    • Patent number 11,956,603
    • Issue date Apr 9, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Lei Zhang
    • 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

    Sound-producing device and electronic terminal
    • Patent number 11,956,613
    • Issue date Apr 9, 2024
    • GOERTEK INC.
    • Jianbin Yang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • 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

    Speaker
    • Patent number 11,950,074
    • Issue date Apr 2, 2024
    • AAC Microtech (Changzhou) Co., Ltd.
    • Keyong Zhou
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    EXCITER AND SPEAKER
    • Publication number 20240163614
    • Publication date May 16, 2024
    • FOSTER ELECTRIC COMPANY, LIMITED
    • Takayuki Tabata
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    PANEL AUDIO LOUDSPEAKERS INCLUDING MECHANICALLY GROUNDED MAGNETIC C...
    • Publication number 20240163602
    • Publication date May 16, 2024
    • Google LLC
    • Andrew Phillis
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER
    • Publication number 20240163613
    • Publication date May 16, 2024
    • MERRY ELECTRONICS (SHENZHEN) CO., LTD.
    • Tsai Ti Lai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND-PRODUCING DEVICE AND ELECTRONIC TERMINAL
    • Publication number 20240155294
    • Publication date May 9, 2024
    • Goertek Inc.
    • Jianbin YANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Damper and Sound-Producing Device
    • Publication number 20240155295
    • Publication date May 9, 2024
    • Goertek Inc.
    • Jianbin YANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DISPLAY APPARATUS
    • Publication number 20240155286
    • Publication date May 9, 2024
    • LG Display Co., Ltd.
    • Jusang RHIM
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    SPEAKERS
    • Publication number 20240147161
    • Publication date May 2, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Lei ZHANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    EARPHONES
    • Publication number 20240147113
    • Publication date May 2, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Lei ZHANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    EARPHONES
    • Publication number 20240147108
    • Publication date May 2, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Lei ZHANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND PRODUCTION COMPONENTS
    • Publication number 20240147162
    • Publication date May 2, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Lei ZHANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Multifunctional Sounding Device
    • Publication number 20240147164
    • Publication date May 2, 2024
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Xin Jin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKERS
    • Publication number 20240147142
    • Publication date May 2, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Lei ZHANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND GENERATOR AND AUDIO DEVICE
    • Publication number 20240147163
    • Publication date May 2, 2024
    • GOERTEK INC.
    • Miaomiao WANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    ELECTRO-ACOUSTIC TRANSDUCER
    • Publication number 20240147172
    • Publication date May 2, 2024
    • ams-OSRAM Asia Pacific Pte. Ltd.
    • Laurent NEVOU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES
    • Publication number 20240137682
    • Publication date Apr 25, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Junjiang FU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES
    • Publication number 20240137689
    • Publication date Apr 25, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Junjiang FU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES
    • Publication number 20240137681
    • Publication date Apr 25, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Junjiang FU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES
    • Publication number 20240137683
    • Publication date Apr 25, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Junjiang FU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    FLAT PANEL TYPE VIBRATION DRIVER
    • Publication number 20240137703
    • Publication date Apr 25, 2024
    • Dong-Man KIM
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES
    • Publication number 20240137690
    • Publication date Apr 25, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Junjiang FU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    HEADPHONES
    • Publication number 20240137692
    • Publication date Apr 25, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Junjiang FU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    A FULL-FREQUENCY BAND HIGH QUALITY SPEAKER WITH A BAR AND SOUND TUN...
    • Publication number 20240137705
    • Publication date Apr 25, 2024
    • SUZHOU LI YUE MUSICAL INSTRUMENTS CO., LTD.
    • Haiou JIN
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SOUND-OUTPUT DEVICE
    • Publication number 20240129665
    • Publication date Apr 18, 2024
    • SHENZHEN SHOKZ CO., LTD.
    • Lei ZHANG
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Sounding Device
    • Publication number 20240114293
    • Publication date Apr 4, 2024
    • AAC MICROTECH (CHANGZHOU) CO., LTD.
    • Long Zhang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Vibrating Diaphragm of Sound-Producing Apparatus and Sound-Producin...
    • Publication number 20240101768
    • Publication date Mar 28, 2024
    • Goertek Inc.
    • Shuqiang Wang
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    ACOUSTIC ACTIVE SENSOR DEVICE
    • Publication number 20240103161
    • Publication date Mar 28, 2024
    • Panasonic Intellectual Property Corporation of America
    • Toshiyuki MATSUMURA
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SPEAKER ASSEMBLY WITH MECHANICALLY-COUPLED MAGNET
    • Publication number 20240107237
    • Publication date Mar 28, 2024
    • HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    • Patrick GROLEAU
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    DISPLAY APPARATUS
    • Publication number 20240098403
    • Publication date Mar 21, 2024
    • LG Display Co., Ltd.
    • Sungtae LEE
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • 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

    SPEAKER
    • Publication number 20240098424
    • Publication date Mar 21, 2024
    • Merry Electronics(Shenzhen) Co., Ltd.
    • Tsai Ti Lai
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE