ClassID:

232180

H04R2307/201 - CPC Classification

Classification description:

Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by or , not provided for in any of its subgroups Damping aspects of the outer suspension of loudspeaker diaphragms by addition of additional damping means

Recent Application in this class:
#1
20240414479
2024-12-12

SPEAKER

#2
20230362548
2023-11-09

Speaker and Terminal

#3
20220408192
2022-12-22

Sound-producing device

#4
20220372348
2022-11-24

ACRYLIC DAMPING ADHESIVE AND DIAPHRAGM MEMBRANE FOR MICRO-SPEAKERS

#5
20210377666
2021-12-02

Speaker

#6
20200329314
2020-10-15

Speaker

#7
20200169814
2020-05-28

Dual-field single-voice-coil transducer

#8
20200092654
2020-03-19

Inverted motor transducer with front spider

#9
20200045486
2020-02-06

Manufacturing method of a speaker vibrating diaphragm by controlling a ratio of fiber materials

#10
20190238986
2019-08-01

Flat speaker and display device

#11
20190208325
2019-07-04

Miniature speaker

#12
20180176689
2018-06-21

Acoustic device configuration and method

#13
20180146298
2018-05-24

PIEZOELECTRIC SPEAKERS FOR ELECTRONIC DEVICES

#14
20180124519
2018-05-03

Suspension device for a loudspeaker, manufacturing method and associated loudspeakers

#15
20170311086
2017-10-26

Electronic device

#16
20170303048
2017-10-19

Piezoelectric speakers for electronic devices

#17
20170289692
2017-10-05

Acoustic device configuration and method

#18
20170164082
2017-06-08

Support frame for thin mini speaker structure and method of assembling lead wires to support frame of thin mini speaker structure

#19
20170085980
2017-03-23

Passive radiator structure

#20
20160345099
2016-11-24

Electro-acoustic transducer with radiating acoustic seal and stacked magnetic circuit assembly

#21
20160205478
2016-07-14

Digital acoustic device with increased sound power

#22
20160173990
2016-06-16

Slim microspeaker

#23
20150350791
2015-12-03

Vibrating element

#24
20150312680
2015-10-29

Loudspeaker

#25
20150181343
2015-06-25

Vibration unit for acoustic arrangement

#26
20150075900
2015-03-19

Loudspeaker diaphragm and loudspeaker using same

#27
20150003643
2015-01-01

Acoustic generator, acoustic generating device, and electronic device

#28
20140321692
2014-10-30

Loudspeaker

#29
20130058521
2013-03-07

Loudspeaker

#30
20130039526
2013-02-14

Electrodynamic sound-emitting device

#31
20120148074
2012-06-14

Electrostatic Loudspeaker System

#32
20110268310
2011-11-03

Loudspeaker with an inverted motor

#33
20110206222
2011-08-25

MEMBRANE FOR AN ACOUSTIC TRANSDUCER

#34
20110044490
2011-02-24

Edge for Speaker

#35
20100239109
2010-09-23

Acoustic device and method of manufacturing same

#36
20090208037
2009-08-20

Silicon microphone without dedicated backplate

#37
20090190782
2009-07-30

Vibration transducer

#38
20090010471
2009-01-08

Loudspeaker damper, manufacturing method thereof, and loudspeaker and electronic device using the same

#39
20080118098
2008-05-22

Ultra low frequency transducer and loud speaker comprising same

#40
20080069394
2008-03-20

Planar speaker driver

#41
20080048525
2008-02-28

Piezoelectric electroacoustic transducing device

#42
20070165888
2007-07-19

Support apparatus for microphone diaphragm

#43
20070148353
2007-06-28

Ink for screen printing, method for producing same, and method for manufacturing edge and damper of speaker using same

#44
20070102231
2007-05-10

Connecting sheet of paper cone

#45
20060245615
2006-11-02

Loudspeaker

#46
20060159293
2006-07-20

Acoustic device

#47
20060098838
2006-05-11

Dynamic micro speaker with dual suspension

#48
20060093165
2006-05-04

Flat panel speaker

#49
20060050924
2006-03-09

Angled cone of loudspeaker

#50
20050157900
2005-07-21

Acoustic passive radiator rocking mode reducing

#51
20050147274
2005-07-07

Acoustic device

#52
20050147273
2005-07-07

Acoustic device

#53
20050036647
2005-02-17

Acoustic transducer with mechanical balancing

#54
17120301
2022-04-26

Loudspeaker having damper with woven wire and method for manufacturing the same