JPS5123904B2 - - Google Patents

Info

Publication number
JPS5123904B2
JPS5123904B2 JP48053250A JP5325073A JPS5123904B2 JP S5123904 B2 JPS5123904 B2 JP S5123904B2 JP 48053250 A JP48053250 A JP 48053250A JP 5325073 A JP5325073 A JP 5325073A JP S5123904 B2 JPS5123904 B2 JP S5123904B2
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Expired
Application number
JP48053250A
Other versions
JPS4950917A (ja
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 filed Critical
Publication of JPS4950917A publication Critical patent/JPS4950917A/ja
Publication of JPS5123904B2 publication Critical patent/JPS5123904B2/ja
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP48053250A 1972-05-17 1973-05-15 Expired JPS5123904B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25530072A 1972-05-17 1972-05-17

Publications (2)

Publication Number Publication Date
JPS4950917A JPS4950917A (ja) 1974-05-17
JPS5123904B2 true JPS5123904B2 (ja) 1976-07-20

Family

ID=22967703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48053250A Expired JPS5123904B2 (ja) 1972-05-17 1973-05-15

Country Status (6)

Country Link
US (1) US3786495A (ja)
JP (1) JPS5123904B2 (ja)
CA (1) CA971673A (ja)
DE (1) DE2324211A1 (ja)
FR (1) FR2184887A1 (ja)
GB (1) GB1369168A (ja)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4861126A (ja) * 1971-12-02 1973-08-27
US3996922A (en) * 1973-08-17 1976-12-14 Electronic Monitors, Inc. Flexible force responsive transducer
US3890511A (en) * 1974-04-15 1975-06-17 Gte Laboratories Inc Electret pulse generator
US4561002A (en) * 1982-08-30 1985-12-24 General Electric Company Capacitive touch switch arrangement
US5161128A (en) * 1990-11-30 1992-11-03 Ultrasonic Arrays, Inc. Capacitive transducer system and method
NL9101381A (nl) * 1991-08-13 1993-03-01 Microtel Bv Elektreetstructuur, werkwijze voor het vervaardigen daarvan, en een elektro-akoestische transducent van het zgn. elektreet-type.
US5295490A (en) * 1993-01-21 1994-03-22 Dodakian Wayne S Self-contained apnea monitor
US5894452A (en) * 1994-10-21 1999-04-13 The Board Of Trustees Of The Leland Stanford Junior University Microfabricated ultrasonic immersion transducer
US5619476A (en) * 1994-10-21 1997-04-08 The Board Of Trustees Of The Leland Stanford Jr. Univ. Electrostatic ultrasonic transducer
FI962386A0 (fi) 1996-06-07 1996-06-07 Kari Johannes Pirk Kirjavainen Elektroakustisk omvandlare
US5982709A (en) * 1998-03-31 1999-11-09 The Board Of Trustees Of The Leland Stanford Junior University Acoustic transducers and method of microfabrication
EP1191810A4 (en) * 2000-04-26 2006-12-20 Hosiden Corp SEMICONDUCTOR ELECTRET CAPACITY MICROPHONE
WO2002073673A1 (en) * 2001-03-13 2002-09-19 Rochester Institute Of Technology A micro-electro-mechanical switch and a method of using and making thereof
JP2002345088A (ja) * 2001-05-18 2002-11-29 Mitsubishi Electric Corp 圧力感応装置及びこれに用いられる半導体基板の製造方法
WO2002097865A2 (en) * 2001-05-31 2002-12-05 Rochester Institute Of Technology Fluidic valves, agitators, and pumps and methods thereof
US6841917B2 (en) * 2001-06-11 2005-01-11 Rochester Institute Of Technology Electrostatic levitation and attraction systems and methods
US7378775B2 (en) * 2001-10-26 2008-05-27 Nth Tech Corporation Motion based, electrostatic power source and methods thereof
US7211923B2 (en) * 2001-10-26 2007-05-01 Nth Tech Corporation Rotational motion based, electrostatic power source and methods thereof
US7217582B2 (en) * 2003-08-29 2007-05-15 Rochester Institute Of Technology Method for non-damaging charge injection and a system thereof
US7287328B2 (en) * 2003-08-29 2007-10-30 Rochester Institute Of Technology Methods for distributed electrode injection
US8581308B2 (en) * 2004-02-19 2013-11-12 Rochester Institute Of Technology High temperature embedded charge devices and methods thereof
US20070074731A1 (en) * 2005-10-05 2007-04-05 Nth Tech Corporation Bio-implantable energy harvester systems and methods thereof
GB2453454B (en) 2006-05-25 2011-08-17 Ultra Scan Corp Biometrical object reader having an ultrasonic wave manipulation device
US7436736B2 (en) * 2006-08-11 2008-10-14 Ultra-Scan Corporation Hydrophone array module
DE102006040725A1 (de) * 2006-08-31 2008-03-13 Siemens Ag Vorrichtung zur Energieumwandlung, insbesondere kapazitiver Mikro-Power-Wandler
US9929679B2 (en) * 2013-03-19 2018-03-27 Sendai Smart Machines Co., Ltd. Electrostatic induction-type vibration power generation device and method of manufacturing the same
DE102013217312B4 (de) * 2013-08-30 2016-06-30 Robert Bosch Gmbh Kapazitives MEMS-Bauelement mit einer druckempfindlichen Membran

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445824A (en) * 1965-11-26 1969-05-20 Automatic Elect Lab Information storage matrix utilizing electrets
US3653038A (en) * 1970-02-20 1972-03-28 United Bank Of Denver National Capacitive electric signal device and keyboard using said device
US3705312A (en) * 1970-11-02 1972-12-05 Bell Telephone Labor Inc Preparation of electret transducer elements by application of controlled breakdown electric field
US3668698A (en) * 1970-12-17 1972-06-06 Northern Electric Co Capacitive transducer
US3668417A (en) * 1970-12-28 1972-06-06 Bell Telephone Labor Inc Touch-sensitive switch employing electret foil

Also Published As

Publication number Publication date
US3786495A (en) 1974-01-15
DE2324211A1 (de) 1973-11-29
CA971673A (en) 1975-07-22
GB1369168A (en) 1974-10-02
FR2184887A1 (ja) 1973-12-28
JPS4950917A (ja) 1974-05-17

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