ClassID:

232019

H04R15/00 - CPC Classification

Classification description:

Magnetostrictive transducers

Sub-classes:
Recent Application in this class:
#1
20260025626
2026-01-22

VOICE TRANSMISSION DEVICE

#2
20250203295
2025-06-19

VIBRATION APPARATUS AND APPARATUS INCLUDING THE SAME

#3
20250159405
2025-05-15

System And Method For Driving A Transducer

#4
20240323612
2024-09-26

Audio transducers

#5
20230412986
2023-12-21

Audio transducers

#6
20230095319
2023-03-30

Relating to audio transducers

#7
20220163410
2022-05-26

Sensor, strain detection sensor, pressure sensor, and microphone

#8
20210358465
2021-11-18

DISPLAY PANEL AND DISPLAY DEVICE

#9
20210051410
2021-02-18

Audio transducers

#10
20210034119
2021-02-04

Electronic device having speaker

#11
20200413200
2020-12-31

Screen component and mobile terminal

#12
20200314527
2020-10-01

Wearable device, wearing detection method, and storage medium

#13
20200280804
2020-09-03

Audio transducers

#14
20200204923
2020-06-25

Sound generator

#15
20200204922
2020-06-25

Speaker

#16
20200196064
2020-06-18

Speaker

#17
20200186933
2020-06-11

Speaker

#18
20200045483
2020-02-06

Bone conduction devices utilizing multiple actuators

#19
20200015016
2020-01-09

Acoustic diaphragm including graphene and acoustic device employing the same

#20
20190166430
2019-05-30

Audio transducers and devices incorporating the same

#21
20190086481
2019-03-21

Sensor having deformable film portion and magnetic portion and electronic device

#22
20190045306
2019-02-07

Audio transducers

#23
20190013001
2019-01-10

Underwater flextensional transducer

#24
20180179048
2018-06-28

MEMS transducer for interacting with a volume flow of a fluid and method for manufacturing the same

#25
20180091903
2018-03-29

Audio transducer and audio devices incorporating the same

#26
20170374472
2017-12-28

Magnetoresistive audio pickup

#27
20170325031
2017-11-09

Speaker apparatus that oscillates an oscillating body via an oscillating element

#28
20170219530
2017-08-03

System and method for testing shell and tube heat exchangers for defects

#29
20170094429
2017-03-30

Bone conduction devices utilizing multiple actuators

#30
20170078798
2017-03-16

Hinge systems for audio transducers and audio transducers or devices incorporating the same

#31
20170067787
2017-03-09

Pressure sensor, microphone, ultrasonic sensor, blood pressure sensor, and touch panel

#32
20160337757
2016-11-17

Electronic device

#33
20160269833
2016-09-15

Parametric in-ear impedance matching device

#34
20160044402
2016-02-11

Digital speaker driving apparatus

#35
20150181345
2015-06-25

Miniature speaker

#36
20150172810
2015-06-18

Disc drive speaker vibration mitigation

#37
20150117699
2015-04-30

Magnetic assembly for speaker

#38
20150100310
2015-04-09

Apparatus and method of reducing noise and audio playing apparatus with non-magnet speaker

#39
20150098594
2015-04-09

Speaker

#40
20150086065
2015-03-26

Loudspeakers With Double Dampers

#41
20150073205
2015-03-12

Magnet Arrangement for Bone Conduction Hearing Implant

#42
20150036869
2015-02-05

Electronic apparatus, and method of providing of sound

#43
20150023545
2015-01-22

Speaker magnetic circuit

#44
20150010196
2015-01-08

Three-Magnet Type Microspeaker

#45
20150003661
2015-01-01

Energy conversion apparatus

#46
20140376766
2014-12-25

Miniature moving-coil speaker

#47
20140376751
2014-12-25

MOVING MAGNET TRANSDUCER

#48
20140363019
2014-12-11

Sounding body and audio reproduction device using same, and mobile device

#49
20140348374
2014-11-27

Magnetic circuit for loudspeaker, and loudspeaker using same

#50
20140348369
2014-11-27

Decoupled drive unit for a loudspeaker enclosure

#51
20140348348
2014-11-27

Personal media playing system

#52
20140314267
2014-10-23

Speaker device with a magnetic gap filled with magnetic fluid and changing magnetic flux density in axial and circumferential directions

#53
20140294228
2014-10-02

Loudspeaker magnetic circuit and loudspeaker using same

#54
20140286524
2014-09-25

Loudspeaker

#55
20140247960
2014-09-04

Electromagnetic transducer

#56
20140232375
2014-08-21

Piezo sensor

#57
20140219479
2014-08-07

Speaker magnet assembly with included spider

#58
20140169594
2014-06-19

MEMS component for generating pressure pulses

#59
20130259271
2013-10-03

Earphone and ear-worn bone conduction device

#60
20130214913
2013-08-22

Wearable vibration device

#61
20130190550
2013-07-25

Magnetostrictive auditory system

#62
20130163792
2013-06-27

VIBRATION SPEAKER WITH A SECURING DEVICE

#63
20130089226
2013-04-11

Auditory comprehension and audibility device

#64
20130058497
2013-03-07

Digital speaker driving apparatus

#65
20130051605
2013-02-28

Speaker device with a magnetic gap filled with magnetic fluid and changing magnetic flux density in axial and circumferential direction

#66
20130044902
2013-02-21

Transducers employing bowed lamina

#67
20120106773
2012-05-03

SPEAKER DEVICE AND METHOD FOR FORMING SPEAKER DEVICE

#68
20120099747
2012-04-26

Audio Signal System

#69
20120088956
2012-04-12

Bone conduction device having an integrated housing and vibrator mass

#70
20110286613
2011-11-24

Speaker system

#71
20110116664
2011-05-19

MAGNETOSTRICTIVE ACTUATOR AND SPEAKER AND DEVICE USING SAID MAGNETOSTRICTIVE ACTUATOR

#72
20110116663
2011-05-19

Magnetostrictive microloudspeaker

#73
20100296681
2010-11-25

Hearing device with a sound transducer and method for producing a sound transducer

#74
20100284555
2010-11-11

Speaker device

#75
20100284554
2010-11-11

Transducer for vibration absorbing, sensing, and transmitting

#76
20100244622
2010-09-30

Magnetostrictive actuator

#77
20100239101
2010-09-23

Digital speaker driving apparatus

#78
20100141248
2010-06-10

Magnetostriction Apparatus

#79
20100008524
2010-01-14

Magnetostrictive auditory system

#80
20100005954
2010-01-14

Sound Sensing Apparatus and Musical Instrument

#81
20090279391
2009-11-12

Apparatus for measuring pressure in a vessel using magnetostrictive acoustic transducer

#82
20090208045
2009-08-20

Water-resistant hearing device

#83
20090175471
2009-07-09

Loudspeaker apparatus

#84
20090136077
2009-05-28

Speaker apparatus and method for driving speaker

#85
20090116341
2009-05-07

Hybrid-drive multi-mode pipe projector

#86
20080205674
2008-08-28

Super magnetostriction speaker

#87
20080056515
2008-03-06

Electro-acoustic transducer

#88
20070206441
2007-09-06

Flexural cylinder projector

#89
20070159012
2007-07-12

Acoustic equipment

#90
20070133837
2007-06-14

Speaker and method of outputting acoustic sound

#91
20070114855
2007-05-24

Actuator

#92
20070081679
2007-04-12

Portable audio drive unit

#93
20060050904
2006-03-09

Acoustic actuators

#94
20060029248
2006-02-09

Audio signal system

#95
20050207600
2005-09-22

Speaker

#96
20050201584
2005-09-15

Helmet with a magnetostrictive actuator

#97
20050117713
2005-06-02

Telephone handset

#98
20050029878
2005-02-10

Magnetostrictive actuator

#99
14510908
2016-07-26

Magnetostrictive parametric transducer

#100
14335441
2015-12-08

Off-axial audio speaker using single audio source

#101
14147327
2015-04-14

Low profile loudspeaker