JPS52139415A - Diaphragm for coustic device - Google Patents

Diaphragm for coustic device

Info

Publication number
JPS52139415A
JPS52139415A JP5686976A JP5686976A JPS52139415A JP S52139415 A JPS52139415 A JP S52139415A JP 5686976 A JP5686976 A JP 5686976A JP 5686976 A JP5686976 A JP 5686976A JP S52139415 A JPS52139415 A JP S52139415A
Authority
JP
Japan
Prior art keywords
coustic
diaphragm
composing
enlarge
evaporating
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
JP5686976A
Other languages
English (en)
Other versions
JPS5546116B2 (ja
Inventor
Hirotoshi Niiguchi
Mitsuru Yashiro
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 JP5686976A priority Critical patent/JPS52139415A/ja
Priority to US05/797,408 priority patent/US4140203A/en
Priority to CA278,499A priority patent/CA1098774A/en
Publication of JPS52139415A publication Critical patent/JPS52139415A/ja
Publication of JPS5546116B2 publication Critical patent/JPS5546116B2/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
JP5686976A 1976-05-17 1976-05-17 Diaphragm for coustic device Granted JPS52139415A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP5686976A JPS52139415A (en) 1976-05-17 1976-05-17 Diaphragm for coustic device
US05/797,408 US4140203A (en) 1976-05-17 1977-05-16 Acoustic diaphragm with polyurethane elastomer coating
CA278,499A CA1098774A (en) 1976-05-17 1977-05-16 Acoustic diaphragm with polyurethane elastomer coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5686976A JPS52139415A (en) 1976-05-17 1976-05-17 Diaphragm for coustic device

Publications (2)

Publication Number Publication Date
JPS52139415A true JPS52139415A (en) 1977-11-21
JPS5546116B2 JPS5546116B2 (ja) 1980-11-21

Family

ID=13039421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5686976A Granted JPS52139415A (en) 1976-05-17 1976-05-17 Diaphragm for coustic device

Country Status (1)

Country Link
JP (1) JPS52139415A (ja)

Also Published As

Publication number Publication date
JPS5546116B2 (ja) 1980-11-21

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