Patents-Review.com
ClassID:

232172 ⎘

H04R2231/001 - CPC Classification

Classification description:

Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by , not provided for in its subgroups Moulding aspects of diaphragm or surround

Recent Application in this class:
#1
20260032389
2026-01-29

Conductive diaphragm and speaker using same

 #2
20250330754
2025-10-23

COMPACT ULTRASOUND TRANSDUCERS FOR INTRAORAL USES

 #3
20250317689
2025-10-09

DIAPHRAGM WITH DEFORMATION STRUCTURES TO REDUCE VIBRATION MAGNITUDE AT RESONANCE FREQUENCY

 #4
20250133359
2025-04-24

DIAPHRAGM MANUFACTURING METHOD

 #5
20250109262
2025-04-03

RUBBER VOICE DIAPHRAGM AND METHOD FOR PREPARING THE SAME, AND SPEAKER

 #6
20250054477
2025-02-13

Sound Amplification Block Made of Air-Permeable Material and Air-Absorbing Material and Having Layered Structure, and Manufacturing Method Thereof

 #7
20240323611
2024-09-26

LOUDSPEAKER

 #8
20240251214
2024-07-25

DIAPHRAGM, SOUND GENERATION DEVICE, AND METHOD FOR MANUFACTURING SOUND GENERATION DEVICE

 #9
20230262394
2023-08-17

Diaphragm for sound producing device, sound producing device, and method for assembling the same

 #10
20230199416
2023-06-22

Micro transducer molding

 #11
20230167282
2023-06-01

DIAPHRAGM AND SOUND GENERATING DEVICE

 #12
20220176685
2022-06-09

Apparatus for reducing fabric dimpling in electronic devices and associated methods

 #13
20220032595
2022-02-03

Apparatus for reducing fabric dimpling in electronic devices and associated methods

 #14
20210297800
2021-09-23

Micro transducer molding

 #15
20200068315
2020-02-27

Method of fabricating a miniature device having an acoustic diaphragm

 #16
20200021933
2020-01-16

Method of fabricating a miniature device having an acoustic diaphragm

 #17
20200021918
2020-01-16

Tweeter, Vibration Structure and Inverted Concave Diaphragm Thereof, and Manufacturing Method and Sound Effect Reproduction Method Therefor

 #18
20190124430
2019-04-25

Electrodynamic loudspeaker membrane with internally molded electrical connection

 #19
20190075416
2019-03-07

Vibration diaphragm and manufacturing method thereof

 #20
20190052971
2019-02-14

Acoustic transducer with vibration damping

 #21
20190052970
2019-02-14

Acoustic transducer with vibration damping

 #22
20190037330
2019-01-31

Method of fabricating a miniature device having an acoustic diaphragm

 #23
20190037316
2019-01-31

Acoustic transducer with vibration damping

 #24
20180376270
2018-12-27

Microphone and manufacture thereof

 #25
20180338207
2018-11-22

Method of fabricating a miniature device having an acoustic diaphragm

 #26
20180213330
2018-07-26

Electronic device and loudspeaker thereof

 #27
20180160230
2018-06-07

Vibrating film and vibrating film assembling process

 #28
20180152800
2018-05-31

Speaker device

 #29
20180041838
2018-02-08

Diaphragm assembly and loudspeaker having same

 #30
20180035191
2018-02-01

Silica gel diaphragm, receiver module, and method for processing silica gel diaphragm

 #31
20170347200
2017-11-30

Speaker

 #32
20170303049
2017-10-19

Microphone package with molded spacer

 #33
20170215007
2017-07-27

Electroacoustic transducer

 #34
20170181303
2017-06-22

Membrane for liquid-resistant devices and methods of making a membrane

 #35
20160295329
2016-10-06

Loudspeaker diaphragm and manufacturing method thereof

 #36
20160219377
2016-07-28

MEMS microphone

 #37
20160205487
2016-07-14

Vibration membrane assembly for speaker, speaker and method for producing the assembly

 #38
20160205476
2016-07-14

Vibrating panel device for electromagnetic vibrator and manufacture method thereof

 #39
20160127838
2016-05-05

Microphone package with molded spacer

 #40
20160112818
2016-04-21

Manufacturing method of a condenser microphone

 #41
20160073183
2016-03-10

Molded acoustic mesh for electronic devices

 #42
20160021460
2016-01-21

Sound transducer

 #43
20150312660
2015-10-29

ACOUSTIC MEMBRANE WITH ASYMMETRIC LAYER ARRANGEMENT

 #44
20150125692
2015-05-07

Asymmetrical multi-layered membrane for electroacoustic transducers

 #45
20150110303
2015-04-23

Acoustic unit, loudspeaker and acoustic module having the same, and manufacturing method thereof

 #46
20140369546
2014-12-18

Loudspeaker and manufacturing method therefor

 #47
20120257781
2012-10-11

Speaker diaphragm, speaker dust cap, speaker frame, speaker using said parts, and electronic equipment and device using said speaker

 #48
20120114165
2012-05-10

Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker

 #49
20120114149
2012-05-10

Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker

 #50
20120112382
2012-05-10

Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker

 #51
20110293114
2011-12-01

Condenser microphone unit

 #52
20110284317
2011-11-24

Speaker diaphragm, speaker, and production method of speaker diaphragm

 #53
20110164764
2011-07-07

Diaphragm for speaker, speaker using the diaphragm, electronic device using the speaker, and speaker-mounted device

 #54
20110143114
2011-06-16

Water-proof sound-transmitting membrane, method for producing the water-proof sound-transmitting membrane, and electrical appliance including the water-proof sound-transmitting membrane

 #55
20110019865
2011-01-27

Speaker

 #56
20110007922
2011-01-13

Speaker diaphragm, speaker, and electronic equipment and mobile device using the speaker

 #57
20100172533
2010-07-08

Diaphragm for speaker, speaker using the diaphragm, and system using the speaker

 #58
20100059309
2010-03-11

Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker

 #59
20080008346
2008-01-10

Dynamic reflection 4pi steradian omni directional tweeter

 #60
20070145637
2007-06-28

Method of manufacturing speaker edge member

 #61
20070131478
2007-06-14

Speaker, speaker-use diaphragm, dust cap, production methods and production devices for them

 #62
20070017737
2007-01-25

Acoustic diaphragm and method for manufacturing an acoustic diaphragm

 #63
20050232458
2005-10-20

Speaker-use diaphragm and speaker

 #64
20050111689
2005-05-26

Loudspeaker with assembly and performance improvements