JPS56125200A - Electrode plate electret for electrostatic type electro-acoustic converter - Google Patents

Electrode plate electret for electrostatic type electro-acoustic converter

Info

Publication number
JPS56125200A
JPS56125200A JP2834780A JP2834780A JPS56125200A JP S56125200 A JPS56125200 A JP S56125200A JP 2834780 A JP2834780 A JP 2834780A JP 2834780 A JP2834780 A JP 2834780A JP S56125200 A JPS56125200 A JP S56125200A
Authority
JP
Japan
Prior art keywords
electrode plate
macromolecular film
film
polarization
fed
Prior art date
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.)
Granted
Application number
JP2834780A
Other languages
Japanese (ja)
Other versions
JPS6239600B2 (en
Inventor
Junichi Tamamura
Yoshiyuki Murakami
Akira Terada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hosiden Electronics Co Ltd
Original Assignee
Hosiden Electronics Co Ltd
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 Hosiden Electronics Co Ltd filed Critical Hosiden Electronics Co Ltd
Priority to JP2834780A priority Critical patent/JPS56125200A/en
Publication of JPS56125200A publication Critical patent/JPS56125200A/en
Publication of JPS6239600B2 publication Critical patent/JPS6239600B2/ja
Granted 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

Abstract

PURPOSE:To form the electrode electret stable in physical property and long in life, ease of manufacture and suitable for mass-production, by inserting macropolymer film with low melting point between polarization macromolecular film and electrode plate. CONSTITUTION:The electrode plate 71 like aluminum is fed toward the arrow 79, the inserting use macromolecular film 72 wound on the supply bobbin 81 is fed on the electrode plate 71, and the polarization use macromolecular film 73 wound on the supply bobbin 83 is fed further on it. The insertion use macromolecular film 72 has lower melting point than the polarization macromolecular film and the thickness is less. The laminated body 74 is fed in the heating furnace 86 set to a given temperature in the thermal bonding temperature range of the insertion use macromolecular film 72, and a given pressure is given with thermal rollers. Heating and pressing are made for a given time, and the polarization macromolecular film 73 is bonded to the electrode plate 71 via the insertion use macromolecular film 72.
JP2834780A 1980-03-06 1980-03-06 Electrode plate electret for electrostatic type electro-acoustic converter Granted JPS56125200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2834780A JPS56125200A (en) 1980-03-06 1980-03-06 Electrode plate electret for electrostatic type electro-acoustic converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2834780A JPS56125200A (en) 1980-03-06 1980-03-06 Electrode plate electret for electrostatic type electro-acoustic converter

Publications (2)

Publication Number Publication Date
JPS56125200A true JPS56125200A (en) 1981-10-01
JPS6239600B2 JPS6239600B2 (en) 1987-08-24

Family

ID=12246062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2834780A Granted JPS56125200A (en) 1980-03-06 1980-03-06 Electrode plate electret for electrostatic type electro-acoustic converter

Country Status (1)

Country Link
JP (1) JPS56125200A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003047095A (en) * 2001-07-31 2003-02-14 Matsushita Electric Ind Co Ltd Capacitor microphone and manufacturing method therefor
WO2006013717A1 (en) * 2004-08-05 2006-02-09 Olympus Corporation Capacitive micromachined ultrasonic transducer and method for manufacturing same
JP2006140861A (en) * 2004-11-15 2006-06-01 Audio Technica Corp Manufacturing method of electret condenser microphone unit
JP2008131160A (en) * 2006-11-17 2008-06-05 Audio Technica Corp Electret condenser microphone unit and electret condenser microphone
JP2013115764A (en) * 2011-11-30 2013-06-10 Yamaha Corp Electrostatic speaker

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003047095A (en) * 2001-07-31 2003-02-14 Matsushita Electric Ind Co Ltd Capacitor microphone and manufacturing method therefor
JP4697763B2 (en) * 2001-07-31 2011-06-08 パナソニック株式会社 Condenser microphone
WO2006013717A1 (en) * 2004-08-05 2006-02-09 Olympus Corporation Capacitive micromachined ultrasonic transducer and method for manufacturing same
JP2006050314A (en) * 2004-08-05 2006-02-16 Olympus Corp Electrostatic capacitive ultrasonic vibrator, and its manufacturing method
JP2006140861A (en) * 2004-11-15 2006-06-01 Audio Technica Corp Manufacturing method of electret condenser microphone unit
JP2008131160A (en) * 2006-11-17 2008-06-05 Audio Technica Corp Electret condenser microphone unit and electret condenser microphone
JP2013115764A (en) * 2011-11-30 2013-06-10 Yamaha Corp Electrostatic speaker

Also Published As

Publication number Publication date
JPS6239600B2 (en) 1987-08-24

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