JPS51122427A - Electric acoustic transducer - Google Patents

Electric acoustic transducer

Info

Publication number
JPS51122427A
JPS51122427A JP4705675A JP4705675A JPS51122427A JP S51122427 A JPS51122427 A JP S51122427A JP 4705675 A JP4705675 A JP 4705675A JP 4705675 A JP4705675 A JP 4705675A JP S51122427 A JPS51122427 A JP S51122427A
Authority
JP
Japan
Prior art keywords
acoustic transducer
electric acoustic
directivity
electric
tranduser
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.)
Pending
Application number
JP4705675A
Other languages
Japanese (ja)
Inventor
Masaki Suzumura
Nobuhisa Atoji
Hirotoshi Niiguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP4705675A priority Critical patent/JPS51122427A/en
Publication of JPS51122427A publication Critical patent/JPS51122427A/en
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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer

Abstract

PURPOSE:To obtain a wade range of directivity by improving the directivity of an electric acoustic tranduser which can be used as a breathe round sound source.
JP4705675A 1975-04-17 1975-04-17 Electric acoustic transducer Pending JPS51122427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4705675A JPS51122427A (en) 1975-04-17 1975-04-17 Electric acoustic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4705675A JPS51122427A (en) 1975-04-17 1975-04-17 Electric acoustic transducer

Publications (1)

Publication Number Publication Date
JPS51122427A true JPS51122427A (en) 1976-10-26

Family

ID=12764488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4705675A Pending JPS51122427A (en) 1975-04-17 1975-04-17 Electric acoustic transducer

Country Status (1)

Country Link
JP (1) JPS51122427A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464005A1 (en) * 1979-08-21 1981-02-27 Thomson Csf PIEZOELECTRIC TRANSDUCER IN POLYMERIC MATERIAL AND METHOD FOR MANUFACTURING THE SAME
JPS60143099A (en) * 1983-12-16 1985-07-29 Taisei Denki Kogyo:Kk Piezo-electric-type speaker
JPH04120168U (en) * 1991-04-11 1992-10-27 喜和 石渡 Banknote storage device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4856128A (en) * 1971-11-11 1973-08-07
JPS4932633A (en) * 1972-07-20 1974-03-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4856128A (en) * 1971-11-11 1973-08-07
JPS4932633A (en) * 1972-07-20 1974-03-25

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464005A1 (en) * 1979-08-21 1981-02-27 Thomson Csf PIEZOELECTRIC TRANSDUCER IN POLYMERIC MATERIAL AND METHOD FOR MANUFACTURING THE SAME
JPS60143099A (en) * 1983-12-16 1985-07-29 Taisei Denki Kogyo:Kk Piezo-electric-type speaker
JPH0113280B2 (en) * 1983-12-16 1989-03-06 Taisei Denki Kogyo Jugen
JPH04120168U (en) * 1991-04-11 1992-10-27 喜和 石渡 Banknote storage device

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