JPS4815867B1 - - Google Patents

Info

Publication number
JPS4815867B1
JPS4815867B1 JP44067613A JP6761369A JPS4815867B1 JP S4815867 B1 JPS4815867 B1 JP S4815867B1 JP 44067613 A JP44067613 A JP 44067613A JP 6761369 A JP6761369 A JP 6761369A JP S4815867 B1 JPS4815867 B1 JP S4815867B1
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.)
Pending
Application number
JP44067613A
Other languages
Japanese (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
Priority to JP44067613A priority Critical patent/JPS4815867B1/ja
Priority to ZA705815A priority patent/ZA705815B/xx
Priority to CA091665A priority patent/CA933277A/en
Priority to DE19702042351 priority patent/DE2042351C/de
Priority to US67187A priority patent/US3646280A/en
Priority to GB4134270A priority patent/GB1318734A/en
Priority to FR7031537A priority patent/FR2059726B1/fr
Publication of JPS4815867B1 publication Critical patent/JPS4815867B1/ja
Pending 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
    • H04R19/013—Electrostatic transducers characterised by the use of electrets for loudspeakers
JP44067613A 1969-08-28 1969-08-28 Pending JPS4815867B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP44067613A JPS4815867B1 (fr) 1969-08-28 1969-08-28
ZA705815A ZA705815B (en) 1969-08-28 1970-08-24 An electrostatic electroacoustic transducer
CA091665A CA933277A (en) 1969-08-28 1970-08-26 Electrostatic electroacoustic transducer
DE19702042351 DE2042351C (de) 1969-08-28 1970-08-26 Elektrostatischer elektroakustischer Wandler
US67187A US3646280A (en) 1969-08-28 1970-08-26 Backplate for electret loudspeaker
GB4134270A GB1318734A (en) 1969-08-28 1970-08-27 Electrostatic electroacoustic transducer
FR7031537A FR2059726B1 (fr) 1969-08-28 1970-08-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44067613A JPS4815867B1 (fr) 1969-08-28 1969-08-28

Publications (1)

Publication Number Publication Date
JPS4815867B1 true JPS4815867B1 (fr) 1973-05-17

Family

ID=13349963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP44067613A Pending JPS4815867B1 (fr) 1969-08-28 1969-08-28

Country Status (6)

Country Link
US (1) US3646280A (fr)
JP (1) JPS4815867B1 (fr)
CA (1) CA933277A (fr)
FR (1) FR2059726B1 (fr)
GB (1) GB1318734A (fr)
ZA (1) ZA705815B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4840084B1 (fr) * 1969-11-19 1973-11-28
US3787642A (en) * 1971-09-27 1974-01-22 Gte Automatic Electric Lab Inc Electrostatic transducer having resilient electrode
JPS5221364B2 (fr) * 1971-11-04 1977-06-10
CA989514A (en) * 1972-09-08 1976-05-18 Loh-Yi Chang Electromechanical transducer and method of making same
DE2330800C3 (de) * 1973-06-16 1981-10-01 Sennheiser Electronic Kg, 3002 Wedemark Elektroakustischer Wandler nach dem elektrostatischen Prinzip und Verfahren zu dessen Herstellung
US3896274A (en) * 1973-10-04 1975-07-22 Thermo Electron Corp Electret earphone
JP4103877B2 (ja) * 2004-09-22 2008-06-18 セイコーエプソン株式会社 静電型超音波トランスデューサ及び超音波スピーカ
DE102007014577A1 (de) * 2007-03-23 2008-09-25 Sennheiser Electronic Gmbh & Co. Kg Kapazitiver Aufnahmewandler und Mikrofon
US8559660B2 (en) * 2007-07-12 2013-10-15 Industrial Technology Research Institute Electrostatic electroacoustic transducers
TWI343756B (en) * 2009-08-10 2011-06-11 Ind Tech Res Inst Flat loudspeaker structure
JP5262288B2 (ja) * 2007-09-27 2013-08-14 ヤマハ株式会社 静電型スピーカ
EP2043386A3 (fr) 2007-09-27 2013-04-24 Yamaha Corporation Haut-parleur électrostatique
TWI419577B (zh) * 2009-12-23 2013-12-11 Ind Tech Res Inst 揚聲器的製造方法與裝置
TWM395976U (en) * 2010-06-30 2011-01-01 Tsung-Hung Wu Electret electroacoustic transducer
TW201204062A (en) * 2010-07-15 2012-01-16 Taiwan Electrets Electronics Co Ltd Electrostatic speaker and manufacturing method thereof and conducting plate of the speaker
WO2014100012A1 (fr) * 2012-12-20 2014-06-26 The Regents Of The University Of California Haut-parleur en graphène électrostatique
US9179221B2 (en) * 2013-07-18 2015-11-03 Infineon Technologies Ag MEMS devices, interface circuits, and methods of making thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1469120A (fr) * 1964-12-28 1967-02-10 Matsushita Electric Ind Co Ltd Microphone à condensateur
US3373251A (en) * 1965-02-23 1968-03-12 Shure Bros Electrostatic transducer

Also Published As

Publication number Publication date
CA933277A (en) 1973-09-04
GB1318734A (en) 1973-05-31
FR2059726A1 (fr) 1971-06-04
DE2042351B2 (de) 1972-07-27
FR2059726B1 (fr) 1974-04-26
DE2042351A1 (de) 1972-03-02
US3646280A (en) 1972-02-29
ZA705815B (en) 1971-04-28

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