Patents-Review.com
ClassID:

231984 ⎘

H04R7/22 - CPC Classification

Classification description:

Diaphragms for electromechanical transducers ; Cones; Mounting or tensioning of diaphragms or cones at the periphery Clamping rim of diaphragm or cone against seating

Recent Application in this class:
#1
20250106568
2025-03-27

DIAMOND CANTILEVER-BASED OPTICAL MICROPHONES AND RELATED SYSTEMS AND METHODS

 #2
20240381032
2024-11-14

DOUBLE GAP DOUBLE COIL DRIVEN SPEAKER

 #3
20240365065
2024-10-31

SPEAKER DEVICE

 #4
20240284114
2024-08-22

LOUDSPEAKER ASSEMBLY

 #5
20230412984
2023-12-21

Thin loudspeaker

 #6
20230262395
2023-08-17

Speaker device

 #7
20220394388
2022-12-08

SPEAKER

 #8
20220232324
2022-07-21

Speaker device

 #9
20210029456
2021-01-28

Speaker device

 #10
20190373373
2019-12-05

Speaker device

 #11
20190349687
2019-11-14

MEMS structure, capacitive sensor, piezoelectric sensor, acoustic sensor having mems structure

 #12
20190289402
2019-09-19

Electroacoustic transducer and display apparatus

 #13
20190261091
2019-08-22

SPEAKER DIAPHRAGM, SPEAKER INCLUDING SAME, AND METHOD FOR MANUFACTURING SPEAKER DIAPHRAGM

 #14
20190215591
2019-07-11

Electret condenser microphone and manufacturing method thereof

 #15
20190020955
2019-01-17

Electroacoustic transducer and display apparatus

 #16
20180270584
2018-09-20

Piezoelectric sounding component

 #17
20180262842
2018-09-13

Electroacoustic transducer, method of manufacturing electroacoustic transducer, and electroacoustic transducing device

 #18
20180255399
2018-09-06

Dual asymmetric compression driver

 #19
20180249256
2018-08-30

MEMS loudspeaker having an actuator structure and a diaphragm spaced apart therefrom

 #20
20180192200
2018-07-05

THIN SPEAKER DRIVER AND DIAPHRAGM THEREOF

 #21
20180167733
2018-06-14

Headphones and method for producing headphones

 #22
20180152789
2018-05-31

Speaker device

 #23
20170303045
2017-10-19

Speaker device

 #24
20170180865
2017-06-22

Method for manufacturing a speaker diaphragm

 #25
20170180837
2017-06-22

Sound emitter device

 #26
20170048620
2017-02-16

Speaker device

 #27
20160381461
2016-12-29

Acoustic Driver Tensioner

 #28
20160286318
2016-09-29

Loudspeaker, electronic apparatus using same, and mobile apparatus

 #29
20160255439
2016-09-01

Tunable ribbon microphone

 #30
20160219371
2016-07-28

Loudspeaker

 #31
20160205487
2016-07-14

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

 #32
20160057540
2016-02-25

Speaker device

 #33
20150341727
2015-11-26

Electrodynamic electroacoustic transducer, diaphragm thereof, and method of manufacturing the same

 #34
20150068027
2015-03-12

Assembling method for micro-loudspeaker assembly

 #35
20150003646
2015-01-01

Acoustic generator, acoustic generation device, and electronic device

 #36
20140376335
2014-12-25

Oscillation device

 #37
20120093353
2012-04-19

Micro speaker

 #38
20120087525
2012-04-12

Speaker, hearing aid, inner-ear headphone, portable information processing device, and AV device

 #39
20120000687
2012-01-05

Waterproof structure and electronic equipment

 #40
20110293131
2011-12-01

Electroacoustic transducer

 #41
20090285440
2009-11-19

Electroacoustic tranducing device

 #42
20090136077
2009-05-28

Speaker apparatus and method for driving speaker

 #43
20090101384
2009-04-23

Waterproof structure and electronic equipment

 #44
20090097693
2009-04-16

Planar-magnetic speakers with secondary magnetic structure

 #45
20090028368
2009-01-29

Diaphragm and sound output apparatus

 #46
20060262953
2006-11-23

Casing of condenser microphone

 #47
20060239497
2006-10-26

Loudspeaker having a separable diaphragm

 #48
20060177090
2006-08-10

Electro-acoustic transducer

 #49
20060133637
2006-06-22

Loudspeaker with integrated spider standoff ring

 #50
20060050923
2006-03-09

Planar-magnetic speakers with secondary magnetic structure

 #51
20050207608
2005-09-22

Gasket for speaker

 #52
20050175212
2005-08-11

Speaker apparatus

 #53
18445073
2024-02-20

Radially arcuated unistructural speaker cone with segmented dome