Patents-Review.com
ClassID:

232024 ⎘

H04R17/025 - CPC Classification

Classification description:

Piezo-electric transducers; Electrostrictive transducers; Microphones using a piezo-electric polymer

Recent Application in this class:
#1
20260032398
2026-01-29

FLEXIBLE ACOUSTIC SENSOR SYSTEMS AND FABRICATION THEREOF

 #2
20260006388
2026-01-01

Vehicle Component With a Surface Comprising Piezoelectric Transducer Fibers

 #3
20250331425
2025-10-23

LAMINATED PIEZOELECTRIC ELEMENT AND ELECTROACOUSTIC TRANSDUCER

 #4
20250081853
2025-03-06

COMPOSITE MATERIAL WITH PIEZOELECTRIC PROPERTIES, PRODUCTION PROCESS AND ELECTRONIC COMPONENT COMPRISING THE COMPOSITE MATERIAL

 #5
20240422480
2024-12-19

PIEZOELECTRIC TRANSDUCER WITH DIFFERENT POLING DIRECTIONS

 #6
20240284131
2024-08-22

METHOD FOR MANUFACTURING MEMS ACOUSTIC SENSOR

 #7
20240179458
2024-05-30

Microphone

 #8
20240080630
2024-03-07

ACTIVE PIEZOELECTRIC SHEET WITH PIEZOELECTRIC MICROSTRUCTURES

 #9
20230308808
2023-09-28

PIEZOELECTRIC MEMS DEVICE FOR PRODUCING A SIGNAL INDICATIVE OF DETECTION OF AN ACOUSTIC STIMULUS

 #10
20230300536
2023-09-21

VIBRATION SENSOR AND MICROPHONE

 #11
20230247352
2023-08-03

BONE CONDUCTION MICROPHONES

 #12
20230217163
2023-07-06

BONE CONDUCTION SOUND TRANSMISSION DEVICES

 #13
20230188911
2023-06-15

BONE CONDUCTION SOUND TRANSMISSION DEVICES

 #14
20230121057
2023-04-20

Acoustic sensor assembly

 #15
20230054412
2023-02-23

Active piezoelectric sheet with piezoelectric microstructures

 #16
20230049593
2023-02-16

Microphone

 #17
20220272458
2022-08-25

Piezoelectric element

 #18
20220267141
2022-08-25

PIEZOELECTRIC MICROELECTROMECHANICAL SYSTEM MICROPHONE SENSITIVITY IMPROVEMENT BY ANCHOR ENGINEERING

 #19
20220248145
2022-08-04

Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer

 #20
20220191623
2022-06-16

ULTRASONIC SENSOR

 #21
20220070591
2022-03-03

Acoustic bending converter system and acoustic apparatus

 #22
20220070590
2022-03-03

PIEZORESISTIVE MICROPHONE WITH ARC-SHAPED SPRINGS

 #23
20210329395
2021-10-21

Directional acoustic sensor and electronic device including the same

 #24
20210321207
2021-10-14

Acoustic devices

 #25
20210181002
2021-06-17

Multi-modal field-programmable metamorphic sensor and signal acquisition system

 #26
20200344555
2020-10-29

Piezoelectric MEMS device for producing a signal indicative of detection of an acoustic stimulus

 #27
20200336826
2020-10-22

Directional microphone and system and method for capturing and processing sound

 #28
20200309592
2020-10-01

Sensor unit and musical instrument

 #29
20200267478
2020-08-20

MANUFACTURING METHOD OF A PIEZOELECTRIC MICROPHONE WITH PILLAR STRUCTURE

 #30
20200170610
2020-06-04

Acoustic sensor assembly

 #31
20190281393
2019-09-12

Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer

 #32
20190245133
2019-08-08

PIEZOELECTRIC DEVICE

 #33
20190222941
2019-07-18

Piezoelectric microphone

 #34
20190174244
2019-06-06

Directional acoustic sensor and electronic device including the same

 #35
20190141433
2019-05-09

Pickup sensor and biological sensor

 #36
20190110132
2019-04-11

Plate Spring

 #37
20190098417
2019-03-28

Piezoelectric mems device for producing a signal indicative of detection of an acoustic stimulus

 #38
20190028799
2019-01-24

Signal processing method of audio sensing device, and audio sensing system

 #39
20180242087
2018-08-23

Electroacoustic transducer

 #40
20180209838
2018-07-26

Sensor unit and musical instrument

 #41
20180192204
2018-07-05

Micromechanical sound transducer system and corresponding manufacturing method

 #42
20180130485
2018-05-10

Auto voice trigger method and audio analyzer employing the same

 #43
20180125445
2018-05-10

Acoustic sensor assembly

 #44
20180123020
2018-05-03

Piezoelectric element including mesoporous piezoelectric thin film

 #45
20180052042
2018-02-22

Acoustic wave sensor

 #46
20180027337
2018-01-25

Piezoresistive microphone and method of fabricating the same

 #47
20180014096
2018-01-11

Electroacoustic transducer

 #48
20170318373
2017-11-02

Acoustic transducer

 #49
20170155035
2017-06-01

Piezoelectric element, piezoelectric actuator, and electronic apparatus

 #50
20170112614
2017-04-27

SELF-SUSTAINING ARTIFICIAL COCHLEA

 #51
20170006385
2017-01-05

Audio sensing device and method of acquiring frequency information

 #52
20160327523
2016-11-10

Sensor

 #53
20160284974
2016-09-29

Piezoelectric device

 #54
20160277843
2016-09-22

Transducer system

 #55
20160209926
2016-07-21

Tactile sense presentation device

 #56
20160204333
2016-07-14

Piezoelectric sensor

 #57
20160066879
2016-03-10

Acoustic sensor assembly

 #58
20160033793
2016-02-04

Transparent lens microphone

 #59
20160014527
2016-01-14

Electroacoustic converter film

 #60
20160008852
2016-01-14

Electroacoustic conversion film, electroacoustic converter, flexible display, and projector screen

 #61
20150377693
2015-12-31

Sound sensor

 #62
20150358729
2015-12-10

System for controlling noise in a window assembly

 #63
20150271606
2015-09-24

Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer

 #64
20150245144
2015-08-27

Loudspeaker with piezoelectric elements

 #65
20150215707
2015-07-30

PBLG based planar microphones

 #66
20150119758
2015-04-30

Bioacoustic sensor with active noise correction

 #67
20150117680
2015-04-30

Acoustic sensor

 #68
20150098593
2015-04-09

SOUND RECEIVER AND METHOD FOR MANUFACTURING THE SAME

 #69
20150030195
2015-01-29

In-ear headphone with sound pick-up capability

 #70
20140309559
2014-10-16

Acoustic sensor assembly

 #71
20140294209
2014-10-02

Embedded dielectric as a barrier in an acoustic device and method of manufacture

 #72
20140254850
2014-09-11

Acoustic sensor package

 #73
20140140551
2014-05-22

System of audio speakers implemented using EMP actuators

 #74
20140062259
2014-03-06

Pulse-echo acoustic transducer

 #75
20140016804
2014-01-16

Hearing instrument transduction apparatus using ferroelectret polymer foam

 #76
20130051586
2013-02-28

Piezoelectric microphone fabricated on glass

 #77
20120250909
2012-10-04

Acoustic transducer with gap-controlling geometry and method of manufacturing an acoustic transducer

 #78
20120165597
2012-06-28

IMPLANTABLE PIEZOELECTRIC POLYMER FILM MICROPHONE

 #79
20110109204
2011-05-12

Piezoelectric element and audio device

 #80
20100274099
2010-10-28

Acoustic sensor assembly

 #81
20100231091
2010-09-16

High-performance electroactive polymer transducers

 #82
20090236939
2009-09-24

High-performance electroactive polymer transducers

 #83
20090208045
2009-08-20

Water-resistant hearing device

 #84
20090154735
2009-06-18

Piezoelectric microphone, speaker, microphone-speaker integrated device and manufacturing method thereof

 #85
20070200468
2007-08-30

High-performance electroactive polymer transducers

 #86
20070113649
2007-05-24

Cantilevered bioacoustic sensor and method using same

 #87
20050180581
2005-08-18

Integrated microphone array

 #88
20050174017
2005-08-11

Composite piezoelectric vibrator

 #89
15631388
2020-10-20

Containers with sensing and/or communication features