H04R2307/204 - CPC Classification Index

#1

20250088805

2025-03-13

SPEAKERS

#2

20240373168

2024-11-07

SPEAKER

#3

20240323611

2024-09-26

LOUDSPEAKER

#4

20240276151

2024-08-15

SPEAKER

#5

20230421960

2023-12-28

SPEAKER AND METHOD OF PRODUCING THE SAME

#6

20230247363

2023-08-03

Micro speaker and diaphragm mold

#7

20210384602

2021-12-09

Metamaterial loudspeaker diaphragm

#8

20210321198

2021-10-14

Acoustic transducer including a modified membrane

#9

20210306755

2021-09-30

Speaker diaphragm, speaker, speaker diaphragm manufacturing method, electronic device, and mobile body apparatus

#10

20210266672

2021-08-26

Speaker diaphragm and speaker

#11

20200137500

2020-04-30

Electrodynamic acoustic transducer with improved suspension system

#12

20190373371

2019-12-05

Diaphragm for producing sound and speaker using same

#13

20190373370

2019-12-05

Diaphragm for producing sound and speaker using same

#14

20190335278

2019-10-31

Speaker

#15

20190261093

2019-08-22

Transducer having a conductive suspension member

#16

20190052971

2019-02-14

Acoustic transducer with vibration damping

#17

20190052970

2019-02-14

Acoustic transducer with vibration damping

#18

20190037316

2019-01-31

Acoustic transducer with vibration damping

#19

20180343532

2018-11-29

Acoustic diaphragm and speaker containing the same

#20

20180324527

2018-11-08

Diaphragm assembly, transducer and method of manufacture

#21

20180227672

2018-08-09

Audio system

#22

20180213330

2018-07-26

Electronic device and loudspeaker thereof

#23

20180167734

2018-06-14

Loudspeaker diaphragm and loudspeaker including same

#24

20180160246

2018-06-07

Antenna using conductor and electronic device therefor

#25

20180160230

2018-06-07

Vibrating film and vibrating film assembling process

#26

20180091902

2018-03-29

Transducer having a conductive suspension member

#27

20170374470

2017-12-28

Bone conduction transducer with increased low frequency performance

#28

20170374468

2017-12-28

Vibrating diaphragm assembly

#29

20170347204

2017-11-30

Miniature sounder

#30

20170311083

2017-10-26

MEMS microphone and method of manufacturing the same

#31

20170289691

2017-10-05

Vibrating diaphragm structure and method of manufacture thereof

#32

20170289690

2017-10-05

VIBRATING DIAPHRAGM STRUCTURE AND METHOD OF MANUFACTURE THEREOF

#33

20170181303

2017-06-22

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

#34

20170145629

2017-05-25

Water-resistant composition

#35

20170127188

2017-05-04

Transducer element and MEMS microphone

#36

20170111744

2017-04-20

APPROACHING VEHICLE WARNING SPEAKER DEVICE

#37

20170094414

2017-03-30

Stiffening plate for acoustic membrane and method of manufacturing same

#38

20170078800

2017-03-16

Fabricating an integrated loudspeaker piston and suspension

#39

20170055083

2017-02-23

Speaker spider having varying corrugation geometry

#40

20170013383

2017-01-12

Micro speaker with capacitors formed by conductive diaphragm and segmented pole plate

#41

20170013382

2017-01-12

Micro speaker with capacitors formed by conductive segmented cover and diaphragm

#42

20170013381

2017-01-12

Micro speaker with capacitors formed by conductive cover and segmented diaphragm

#43

20170013380

2017-01-12

Micro speaker with capacitors formed by conductive segmented cover and segmented diaphragm

#44

20170013378

2017-01-12

Micro speaker with capacitors formed by conductive cover and diaphragm

#45

20170013340

2017-01-12

Speaker

#46

20160261966

2016-09-08

Speaker frame and speaker having the same

#47

20160205476

2016-07-14

Vibrating panel device for electromagnetic vibrator and manufacture method thereof

#48

20160165357

2016-06-09

Dual-element MEMS microphone for mechanical vibration noise cancellation

#49

20160142825

2016-05-19

Suspension element for suspending the diaphragm of a loudspeaker driver to the chassis thereof as well as driver and loudspeaker comprising the same

#50

20160057543

2016-02-25

High aspect ratio microspeaker having a two-plane suspension

#51

20160014522

2016-01-14

Speaker diaphragm, speaker, device, and method for manufacturing speaker diaphragm

#52

20150304776

2015-10-22

Audio transducer with electrostatic discharge protection

#53

20150195630

2015-07-09

Speaker suspension

#54

20150181343

2015-06-25

Vibration unit for acoustic arrangement

#55

20150125024

2015-05-07

Speaker surround structure for maximizing cone diameter

#56

20150086963

2015-03-26

Audio demonstration kit

#57

20150075900

2015-03-19

Loudspeaker diaphragm and loudspeaker using same

#58

20140153750

2014-06-05

Directional loudspeaker

#59

20140083795

2014-03-27

Compound membrane and acoustic device using same

#60

20130306397

2013-11-21

Acoustic diaphragm suspending

#61

20120237076

2012-09-20

Speaker diaphragm, and speaker and handheld terminal device using said speaker diaphragm

#62

20120183171

2012-07-19

Speaker surround structure for maximizing cone diameter

#63

20120160598

2012-06-28

Acoustic diaphragm suspending

#64

20120106774

2012-05-03

Speaker, and mobile electronic device

#65

20120087523

2012-04-12

Speaker having center pleat

#66

20110317869

2011-12-29

Loudspeaker diaphragm and loudspeaker including the loudspeaker diaphragm

#67

20110299716

2011-12-08

Flat diaphragm loudspeaker

#68

20110206231

2011-08-25

Electromagnetic converter

#69

20110206222

2011-08-25

MEMBRANE FOR AN ACOUSTIC TRANSDUCER

#70

20100329497

2010-12-30

Speaker-transducer with integral bass-reflex and maximum efficiency cooling

#71

20100172537

2010-07-08

LOUDSPEAKER WITH REAR SURROUND SUPPORT

#72

20090324000

2009-12-31

Speaker surround structure for maximizing cone diameter

#73

20090262972

2009-10-22

SPEAKER AND DEVICE USING THIS SPEAKER

#74

20090028369

2009-01-29

INFLATABLE SPEAKER ROLL

#75

20090010480

2009-01-08

Separate support structure for loudspeaker diaphragm

#76

20080118098

2008-05-22

Ultra low frequency transducer and loud speaker comprising same

#77

20070145637

2007-06-28

Method of manufacturing speaker edge member

#78

20070102231

2007-05-10

Connecting sheet of paper cone

#79

20070081693

2007-04-12

Insert molded surround with mechanical support

#80

20070071274

2007-03-29

Insert moulded surround with integrated lead-out wires

#81

20060233416

2006-10-19

Loudspeaker including a cone circumscribed by a stiffener

#82

20060165252

2006-07-27

Speaker vibrating member

#83

20060093165

2006-05-04

Flat panel speaker

#84

20050226459

2005-10-13

Vibrating plate for speaker and method of fabricating the same

#85

20050226456

2005-10-13

Loudspeaker edge

#86

20050157900

2005-07-21

Acoustic passive radiator rocking mode reducing

#87

16055070

2019-04-02

Miniature speaker