JPS6239880B2 - - Google Patents

Info

Publication number
JPS6239880B2
JPS6239880B2 JP7260981A JP7260981A JPS6239880B2 JP S6239880 B2 JPS6239880 B2 JP S6239880B2 JP 7260981 A JP7260981 A JP 7260981A JP 7260981 A JP7260981 A JP 7260981A JP S6239880 B2 JPS6239880 B2 JP S6239880B2
Authority
JP
Japan
Prior art keywords
electret
pole
fixed
fixed pole
movable
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
JP7260981A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57188200A (en
Inventor
Hiroto Wada
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP7260981A priority Critical patent/JPS57188200A/ja
Publication of JPS57188200A publication Critical patent/JPS57188200A/ja
Publication of JPS6239880B2 publication Critical patent/JPS6239880B2/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
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
JP7260981A 1981-05-14 1981-05-14 Electret capacitor type transducer Granted JPS57188200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7260981A JPS57188200A (en) 1981-05-14 1981-05-14 Electret capacitor type transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7260981A JPS57188200A (en) 1981-05-14 1981-05-14 Electret capacitor type transducer

Publications (2)

Publication Number Publication Date
JPS57188200A JPS57188200A (en) 1982-11-19
JPS6239880B2 true JPS6239880B2 (enExample) 1987-08-25

Family

ID=13494300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7260981A Granted JPS57188200A (en) 1981-05-14 1981-05-14 Electret capacitor type transducer

Country Status (1)

Country Link
JP (1) JPS57188200A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0226486U (enExample) * 1988-08-03 1990-02-21

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5055203B2 (ja) * 2008-05-30 2012-10-24 株式会社オーディオテクニカ コンデンサマイクロホン用の振動板およびその製造方法並びにコンデンサマイクロホン

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0226486U (enExample) * 1988-08-03 1990-02-21

Also Published As

Publication number Publication date
JPS57188200A (en) 1982-11-19

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