JPS632199B2 - - Google Patents

Info

Publication number
JPS632199B2
JPS632199B2 JP55188192A JP18819280A JPS632199B2 JP S632199 B2 JPS632199 B2 JP S632199B2 JP 55188192 A JP55188192 A JP 55188192A JP 18819280 A JP18819280 A JP 18819280A JP S632199 B2 JPS632199 B2 JP S632199B2
Authority
JP
Japan
Prior art keywords
conductive elastic
vibrating element
elastic material
vibrating
wall
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.)
Expired
Application number
JP55188192A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57113689A (en
Inventor
Tsuneo Torii
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP18819280A priority Critical patent/JPS57113689A/ja
Publication of JPS57113689A publication Critical patent/JPS57113689A/ja
Publication of JPS632199B2 publication Critical patent/JPS632199B2/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP18819280A 1980-12-29 1980-12-29 Ultrasonic wave transmitter-receiver Granted JPS57113689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18819280A JPS57113689A (en) 1980-12-29 1980-12-29 Ultrasonic wave transmitter-receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18819280A JPS57113689A (en) 1980-12-29 1980-12-29 Ultrasonic wave transmitter-receiver

Publications (2)

Publication Number Publication Date
JPS57113689A JPS57113689A (en) 1982-07-15
JPS632199B2 true JPS632199B2 (2) 1988-01-18

Family

ID=16219374

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18819280A Granted JPS57113689A (en) 1980-12-29 1980-12-29 Ultrasonic wave transmitter-receiver

Country Status (1)

Country Link
JP (1) JPS57113689A (2)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6170013A (ja) * 1984-09-13 1986-04-10 Nikkiso Co Ltd 微細繊維の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440968Y2 (2) * 1975-07-30 1979-12-01
JPS5718775Y2 (2) * 1977-01-25 1982-04-20

Also Published As

Publication number Publication date
JPS57113689A (en) 1982-07-15

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