NL1009544C2 - Stelsel bestaande uit een microfoon en een voorversterker. - Google Patents

Stelsel bestaande uit een microfoon en een voorversterker. Download PDF

Info

Publication number
NL1009544C2
NL1009544C2 NL1009544A NL1009544A NL1009544C2 NL 1009544 C2 NL1009544 C2 NL 1009544C2 NL 1009544 A NL1009544 A NL 1009544A NL 1009544 A NL1009544 A NL 1009544A NL 1009544 C2 NL1009544 C2 NL 1009544C2
Authority
NL
Netherlands
Prior art keywords
microphone
membrane
amplifier
housing
diameter
Prior art date
Application number
NL1009544A
Other languages
English (en)
Dutch (nl)
Inventor
Aart Zeger Van Halteren
Claus Erdmenn Fuerst
Original Assignee
Microtronic Nederland Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Microtronic Nederland Bv filed Critical Microtronic Nederland Bv
Priority to NL1009544A priority Critical patent/NL1009544C2/nl
Priority to US09/346,220 priority patent/US6914992B1/en
Priority to DK99202157T priority patent/DK0969695T3/da
Priority to EP99202157A priority patent/EP0969695B1/de
Priority to DE69918224T priority patent/DE69918224T2/de
Application granted granted Critical
Publication of NL1009544C2 publication Critical patent/NL1009544C2/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Circuit For Audible Band Transducer (AREA)
NL1009544A 1998-07-02 1998-07-02 Stelsel bestaande uit een microfoon en een voorversterker. NL1009544C2 (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL1009544A NL1009544C2 (nl) 1998-07-02 1998-07-02 Stelsel bestaande uit een microfoon en een voorversterker.
US09/346,220 US6914992B1 (en) 1998-07-02 1999-07-01 System consisting of a microphone and a preamplifier
DK99202157T DK0969695T3 (da) 1998-07-02 1999-07-02 System bestående af en mikrofon og en forforstærker
EP99202157A EP0969695B1 (de) 1998-07-02 1999-07-02 System bestehend aus einem Mikrofon und einem Vorverstärker
DE69918224T DE69918224T2 (de) 1998-07-02 1999-07-02 System bestehend aus einem Mikrofon und einem Vorverstärker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1009544 1998-07-02
NL1009544A NL1009544C2 (nl) 1998-07-02 1998-07-02 Stelsel bestaande uit een microfoon en een voorversterker.

Publications (1)

Publication Number Publication Date
NL1009544C2 true NL1009544C2 (nl) 2000-01-10

Family

ID=19767413

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1009544A NL1009544C2 (nl) 1998-07-02 1998-07-02 Stelsel bestaande uit een microfoon en een voorversterker.

Country Status (5)

Country Link
US (1) US6914992B1 (de)
EP (1) EP0969695B1 (de)
DE (1) DE69918224T2 (de)
DK (1) DK0969695T3 (de)
NL (1) NL1009544C2 (de)

Families Citing this family (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001082649A1 (en) * 2000-04-26 2001-11-01 Mitsubishi Denki Kabushiki Kaisha Semiconductor electret capacitor microphone
WO2003024149A1 (en) * 2001-09-10 2003-03-20 Sonion A/S Miniature speaker with integrated signal processing electronics
US7065224B2 (en) 2001-09-28 2006-06-20 Sonionmicrotronic Nederland B.V. Microphone for a hearing aid or listening device with improved internal damping and foreign material protection
JP2003230195A (ja) * 2002-02-06 2003-08-15 Hosiden Corp エレクトレットコンデンサマイクロホン
US7092538B2 (en) 2002-04-15 2006-08-15 Knowles Electronics, Llc Switched microphone buffer
US7221766B2 (en) 2002-04-15 2007-05-22 Knowles Electronics, Llc Microphone input buffer biasing circuit
US7688987B2 (en) 2002-04-24 2010-03-30 Knowles Electronics, Llc Electret microphone buffer circuit with significantly enhanced power supply rejection
US6888408B2 (en) 2002-08-27 2005-05-03 Sonion Tech A/S Preamplifier for two terminal electret condenser microphones
US7072482B2 (en) 2002-09-06 2006-07-04 Sonion Nederland B.V. Microphone with improved sound inlet port
US7415121B2 (en) * 2004-10-29 2008-08-19 Sonion Nederland B.V. Microphone with internal damping
US7795695B2 (en) 2005-01-27 2010-09-14 Analog Devices, Inc. Integrated microphone
US7449356B2 (en) * 2005-04-25 2008-11-11 Analog Devices, Inc. Process of forming a microphone using support member
US7825484B2 (en) * 2005-04-25 2010-11-02 Analog Devices, Inc. Micromachined microphone and multisensor and method for producing same
US20070071268A1 (en) * 2005-08-16 2007-03-29 Analog Devices, Inc. Packaged microphone with electrically coupled lid
US7885423B2 (en) 2005-04-25 2011-02-08 Analog Devices, Inc. Support apparatus for microphone diaphragm
EP1742506B1 (de) 2005-07-06 2013-05-22 Epcos Pte Ltd Mikrofonanordnung mit P-typ Vorverstärkerseingangsstufe
US20070040231A1 (en) * 2005-08-16 2007-02-22 Harney Kieran P Partially etched leadframe packages having different top and bottom topologies
US8477983B2 (en) * 2005-08-23 2013-07-02 Analog Devices, Inc. Multi-microphone system
US8130979B2 (en) * 2005-08-23 2012-03-06 Analog Devices, Inc. Noise mitigating microphone system and method
US7961897B2 (en) * 2005-08-23 2011-06-14 Analog Devices, Inc. Microphone with irregular diaphragm
US8351632B2 (en) * 2005-08-23 2013-01-08 Analog Devices, Inc. Noise mitigating microphone system and method
US8344487B2 (en) * 2006-06-29 2013-01-01 Analog Devices, Inc. Stress mitigation in packaged microchips
JP4951067B2 (ja) * 2006-07-25 2012-06-13 アナログ デバイシス， インコーポレイテッド 複数のマイクロホンシステム
TW200847827A (en) * 2006-11-30 2008-12-01 Analog Devices Inc Microphone system with silicon microphone secured to package lid
US7694610B2 (en) * 2007-06-27 2010-04-13 Siemens Medical Solutions Usa, Inc. Photo-multiplier tube removal tool
US8135163B2 (en) * 2007-08-30 2012-03-13 Klipsch Group, Inc. Balanced armature with acoustic low pass filter
US9357287B2 (en) 2011-07-07 2016-05-31 Sonion Nederland B.V. Multiple receiver assembly and a method for assembly thereof
EP2590434B1 (de) * 2011-11-04 2016-01-27 AKG Acoustics GmbH Filterkreis
DK2723102T3 (da) 2012-10-18 2019-01-02 Sonion Nederland Bv Transducer, høreapparat med transducer og en fremgangsmåde til betjening af transduceren
DK2723098T3 (en) 2012-10-18 2017-03-13 Sonion Nederland Bv Double transducer with common membrane
US9807525B2 (en) 2012-12-21 2017-10-31 Sonion Nederland B.V. RIC assembly with thuras tube
EP2750413B1 (de) 2012-12-28 2017-02-22 Sonion Nederland B.V. Hörgerät
US9676614B2 (en) 2013-02-01 2017-06-13 Analog Devices, Inc. MEMS device with stress relief structures
US9401575B2 (en) 2013-05-29 2016-07-26 Sonion Nederland Bv Method of assembling a transducer assembly
EP2849463B1 (de) 2013-09-16 2018-04-04 Sonion Nederland B.V. Wandler mit Feuchtigkeitstransportelement
DK3550852T3 (en) 2014-02-14 2021-02-01 Sonion Nederland Bv A joiner for a receiver assembly
EP2908559B1 (de) 2014-02-18 2016-10-05 Sonion A/S Verfahren zur Herstellung von Anordnungen für Hörgeräte
DK2914018T3 (en) 2014-02-26 2017-01-30 Sonion Nederland Bv Speaker, luminaire and method
US9432774B2 (en) 2014-04-02 2016-08-30 Sonion Nederland B.V. Transducer with a bent armature
EP2953380A1 (de) 2014-06-04 2015-12-09 Sonion Nederland B.V. Akustische Übersprechkompensation
US10167189B2 (en) 2014-09-30 2019-01-01 Analog Devices, Inc. Stress isolation platform for MEMS devices
US9729974B2 (en) 2014-12-30 2017-08-08 Sonion Nederland B.V. Hybrid receiver module
EP3051841B1 (de) 2015-01-30 2020-10-07 Sonion Nederland B.V. Hörer mit aufgehängter motoranordnung
EP3057339B1 (de) 2015-02-10 2020-09-23 Sonion Nederland B.V. Mikrofonmodul mit gemeinsamer mittlerer toneinlassanordnung
DK3073764T3 (en) 2015-03-25 2021-05-10 Sonion Nederland Bv A hearing aid comprising an insert member
US9980029B2 (en) 2015-03-25 2018-05-22 Sonion Nederland B.V. Receiver-in-canal assembly comprising a diaphragm and a cable connection
DK3133829T3 (da) 2015-08-19 2020-06-22 Sonion Nederland Bv Lydgiverenhed med forbedret frekvensrespons
US10433077B2 (en) 2015-09-02 2019-10-01 Sonion Nederland B.V. Augmented hearing device
US10131538B2 (en) 2015-09-14 2018-11-20 Analog Devices, Inc. Mechanically isolated MEMS device
US9668065B2 (en) 2015-09-18 2017-05-30 Sonion Nederland B.V. Acoustical module with acoustical filter
US10021494B2 (en) 2015-10-14 2018-07-10 Sonion Nederland B.V. Hearing device with vibration sensitive transducer
DK3160157T3 (en) 2015-10-21 2018-12-17 Sonion Nederland Bv Vibration-compensated vibroacoustic device
US10582303B2 (en) 2015-12-04 2020-03-03 Sonion Nederland B.V. Balanced armature receiver with bi-stable balanced armature
EP3185584B1 (de) 2015-12-21 2020-04-22 Sonion Nederland B.V. Receiver-anordnung mit ausgeprägter längsrichtung
US9866959B2 (en) 2016-01-25 2018-01-09 Sonion Nederland B.V. Self-biasing output booster amplifier and use thereof
EP3200479A3 (de) 2016-01-28 2017-08-30 Sonion Nederland B.V. Elektrostatischer schallgenerator und anordnung mit elektrostatischem schallgenerator und transformator
DK3232685T3 (en) 2016-04-13 2021-04-19 Sonion Nederland Bv A dome for a personal audio device
US10078097B2 (en) 2016-06-01 2018-09-18 Sonion Nederland B.V. Vibration or acceleration sensor applying squeeze film damping
US10257616B2 (en) 2016-07-22 2019-04-09 Knowles Electronics, Llc Digital microphone assembly with improved frequency response and noise characteristics
DK3703389T1 (en) 2016-08-26 2020-11-09 Sonion Nederland Bv Vibration sensor with low-frequency roll-off response curve
EP3293985B1 (de) 2016-09-12 2021-03-24 Sonion Nederland B.V. Hörer mit integrierter membranbewegungserkennung
US10412477B2 (en) 2016-09-19 2019-09-10 Wade Goeke High fidelity, professional grade microphone system for direct coupling to recording components
EP3313097B1 (de) 2016-10-19 2020-08-26 Sonion Nederland B.V. Ohrstöpsel oder -kuppel
EP3324649A1 (de) 2016-11-18 2018-05-23 Sonion Nederland B.V. Wandler mit hoher empfindlichkeit
US10327072B2 (en) 2016-11-18 2019-06-18 Sonion Nederland B.V. Phase correcting system and a phase correctable transducer system
EP3324538A1 (de) 2016-11-18 2018-05-23 Sonion Nederland B.V. Messschaltung mit einer verstärkerschaltung
US20180145643A1 (en) 2016-11-18 2018-05-24 Sonion Nederland B.V. Circuit for providing a high and a low impedance and a system comprising the circuit
DK3337184T3 (en) 2016-12-14 2020-06-02 Sonion Nederland Bv An armature and a transducer comprising the armature
EP3337191B1 (de) 2016-12-16 2021-05-19 Sonion Nederland B.V. Schallerzeugeranordnung
DK3337192T3 (en) 2016-12-16 2021-05-10 Sonion Nederland Bv A receiver assembly
EP3343950A1 (de) 2016-12-28 2018-07-04 Sonion Nederland B.V. Magnetanordnung
DK3702322T3 (da) 2016-12-30 2026-03-16 Sonion Nederland Bv Mikroelektromekanisk transducer
DK3343956T3 (en) 2016-12-30 2021-05-03 Sonion Nederland Bv A circuit and a receiver comprising the circuit
DK3407626T3 (en) 2017-05-26 2020-07-27 Sonion Nederland Bv A receiver assembly comprising an armature and a diaphragm
DK3407625T3 (en) 2017-05-26 2021-07-12 Sonion Nederland Bv Receiver with venting opening
DK3429231T3 (da) 2017-07-13 2023-04-11 Sonion Nederland Bv Høreanordning indbefattende vibrationsforebyggende indretning
US10820104B2 (en) 2017-08-31 2020-10-27 Sonion Nederland B.V. Diaphragm, a sound generator, a hearing device and a method
EP3451688B1 (de) 2017-09-04 2021-05-26 Sonion Nederland B.V. Schallerzeuger, abschirmung und öffnung
GB201714956D0 (en) 2017-09-18 2017-11-01 Sonova Ag Hearing device with adjustable venting
EP4203497A3 (de) 2017-10-16 2023-11-15 Sonion Nederland B.V. Persönliches hörgerät
EP3471432B1 (de) 2017-10-16 2022-09-14 Sonion Nederland B.V. Klangkanalelement mit einem ventil und ein wandler mit dem klangkanalelement
DK3471437T3 (en) 2017-10-16 2021-02-15 Sonion Nederland Bv A valve, a transducer comprising a valve, a hearing device and a method
EP3567873B1 (de) 2018-02-06 2021-08-18 Sonion Nederland B.V. Verfahren zur steuerung eines akustischen ventils eines hörgerätes
EP3531720B1 (de) 2018-02-26 2021-09-15 Sonion Nederland B.V. Anordnung aus einem empfänger und einem mikrofon
DK3531713T3 (en) 2018-02-26 2023-02-06 Sonion Nederland Bv Miniature Speaker with Acoustical Mass
DK3467457T3 (en) 2018-04-30 2022-10-17 Sonion Nederland Bv Vibrationssensor
EP3579578B1 (de) 2018-06-07 2022-02-23 Sonion Nederland B.V. Miniaturempfänger
US10951169B2 (en) 2018-07-20 2021-03-16 Sonion Nederland B.V. Amplifier comprising two parallel coupled amplifier units
US11564580B2 (en) 2018-09-19 2023-01-31 Sonion Nederland B.V. Housing comprising a sensor
EP4300995A3 (de) 2018-12-19 2024-04-03 Sonion Nederland B.V. Miniaturlautsprecher mit mehreren schallhohlräumen
US11190880B2 (en) 2018-12-28 2021-11-30 Sonion Nederland B.V. Diaphragm assembly, a transducer, a microphone, and a method of manufacture
EP3675522A1 (de) 2018-12-28 2020-07-01 Sonion Nederland B.V. Miniaturlautsprecher ohne wesentliche akustische leckage
EP3726855B1 (de) 2019-04-15 2021-09-01 Sonion Nederland B.V. Persönliches hörgerät mit entlüftungskanal und akustischer trennung
EP3806494B1 (de) 2019-10-07 2023-12-27 Sonion Nederland B.V. Hörgerät mit einem optischen sensor
US11417611B2 (en) 2020-02-25 2022-08-16 Analog Devices International Unlimited Company Devices and methods for reducing stress on circuit components
US11981560B2 (en) 2020-06-09 2024-05-14 Analog Devices, Inc. Stress-isolated MEMS device comprising substrate having cavity and method of manufacture
EP4469388A4 (de) 2022-01-25 2026-01-28 Analog Devices Inc Belastungsisolation für integrierte schaltungspackungsintegration

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063050A (en) * 1976-12-30 1977-12-13 Industrial Research Products, Inc. Acoustic transducer with improved electret assembly
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
US4701640A (en) * 1985-03-11 1987-10-20 Telex Communications, Inc. Electret transducer and method of fabrication
US4764690A (en) * 1986-06-18 1988-08-16 Lectret S.A. Electret transducing
EP0533284A1 (de) * 1991-09-17 1993-03-24 Microtronic Nederland B.V. Elektroakustischer Wandler vom Elektret-Typ
EP0800331A2 (de) * 1996-04-03 1997-10-08 Microtronic Nederland B.V. Integrierter Mikrophon/Verstärker-Einheit, und eine Verstärkermodule dafür

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197048A (en) * 1962-12-26 1965-07-27 American Zinc Self loading transport
US4056697A (en) * 1976-09-03 1977-11-01 Oskar Heil Movable diaphragm connector method flexible hinge diaphragm surround and electro-acoustic transducer with folded diaphragm with intermediate flexible portions
US4450930A (en) * 1982-09-03 1984-05-29 Industrial Research Products, Inc. Microphone with stepped response
US5083312A (en) * 1989-08-01 1992-01-21 Argosy Electronics, Inc. Programmable multichannel hearing aid with adaptive filter
US5452268A (en) * 1994-08-12 1995-09-19 The Charles Stark Draper Laboratory, Inc. Acoustic transducer with improved low frequency response
US5589799A (en) * 1994-09-29 1996-12-31 Tibbetts Industries, Inc. Low noise amplifier for microphone
US5812679A (en) * 1994-11-30 1998-09-22 Killion; Mead Electronic damper circuit for a hearing aid and a method of using the same
US6466678B1 (en) * 1994-11-30 2002-10-15 Etymotic Research, Inc. Hearing aid having digital damping
US6031922A (en) * 1995-12-27 2000-02-29 Tibbetts Industries, Inc. Microphone systems of reduced in situ acceleration sensitivity
AU2923397A (en) * 1996-04-18 1997-11-07 California Institute Of Technology Thin film electret microphone
US5889872A (en) * 1996-07-02 1999-03-30 Motorola, Inc. Capacitive microphone and method therefor
US6504937B1 (en) * 1998-01-06 2003-01-07 Vxi Corporation Amplifier circuit for electret microphone with enhanced performance
US6154547A (en) * 1998-05-07 2000-11-28 Visteon Global Technologies, Inc. Adaptive noise reduction filter with continuously variable sliding bandwidth

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063050A (en) * 1976-12-30 1977-12-13 Industrial Research Products, Inc. Acoustic transducer with improved electret assembly
US4331840A (en) * 1980-02-22 1982-05-25 Lectret S.A. Electret transducer with tapered acoustic chamber
US4701640A (en) * 1985-03-11 1987-10-20 Telex Communications, Inc. Electret transducer and method of fabrication
US4764690A (en) * 1986-06-18 1988-08-16 Lectret S.A. Electret transducing
EP0533284A1 (de) * 1991-09-17 1993-03-24 Microtronic Nederland B.V. Elektroakustischer Wandler vom Elektret-Typ
EP0800331A2 (de) * 1996-04-03 1997-10-08 Microtronic Nederland B.V. Integrierter Mikrophon/Verstärker-Einheit, und eine Verstärkermodule dafür

Also Published As

Publication number Publication date
DE69918224D1 (de) 2004-07-29
US6914992B1 (en) 2005-07-05
EP0969695A1 (de) 2000-01-05
EP0969695B1 (de) 2004-06-23
DE69918224T2 (de) 2005-06-30
DK0969695T3 (da) 2004-11-01

Similar Documents

Publication Publication Date Title
US6914992B1 (en) System consisting of a microphone and a preamplifier
US20110051954A1 (en) Signal conditioner with suppression of interfering signals
US8649528B2 (en) Microphone unit with internal A/D converter
CN215072331U (zh) 用于传感器组件的电路、集成电路和麦克风传感器组件
JP7200256B2 (ja) 補正回路を有する指向性ｍｅｍｓマイクロホン
US20040184623A1 (en) Speaker unit with active leak compensation
US10616691B2 (en) Method and apparatus to increase audio band microphone sensitivity
CN219164733U (zh) 声学传感器组件
US20180233827A1 (en) Ultrasonic microphone enclosure
KR20090098721A (ko) 콘덴서 마이크로폰
US7978863B2 (en) Apparatus and method to provide advanced microphone bias
KR20080109638A (ko) 전기 음향 변환기
EP3329591B1 (de) Elektronische schaltung für ein mikrofon und mikrofon
EP1149508A2 (de) Im-ohrkanal-richthörgerät mit zwei-eingangen-mikrofon
US20080137878A1 (en) Electronic method for reducing noise in the ear canal using feed forward techniques
US6768803B1 (en) Method and apparatus for selective acoustic signal filtering
US6219424B1 (en) Electronic stereophonic amplifier
CN219181642U (zh) 麦克风及电子设备
US10911854B2 (en) Ultrasonic microphone enclosure
US12589987B2 (en) Microelectromechanical systems sensor with frequency dependent input attenuator
Brauer et al. Improved signal-to-noise ratio of silicon microphones by a high-impedance resistor
CN120786220A (zh) 噪声回采装置、麦克风采集系统、集成电路板及电子设备
KR20050018241A (ko) 전음성 난청 및 신경 감음성 난청 겸용 보청기
JPH08307987A (ja) スピーカ駆動回路
MXPA01005624A (en) Directional ite hearing aid using dual-input microphone

Legal Events

Date Code Title Description
PD2B A search report has been drawn up
SD Assignments of patents

Owner name: PULSE NEDERLAND B.V.

Effective date: 20090728

Owner name: XILCO B.V.

Effective date: 20090728

TD Modifications of names of proprietors of patents

Owner name: SONION NEDERLAND B.V.

Effective date: 20090728

Owner name: SONIONMICROTRONIC NEDERLAND B.V.

Effective date: 20090728

PLED Pledge established

Effective date: 20110401

MK Patent expired because of reaching the maximum lifetime of a patent

Effective date: 20180701