JPH0252917B2 - - Google Patents

Info

Publication number
JPH0252917B2
JPH0252917B2 JP59085452A JP8545284A JPH0252917B2 JP H0252917 B2 JPH0252917 B2 JP H0252917B2 JP 59085452 A JP59085452 A JP 59085452A JP 8545284 A JP8545284 A JP 8545284A JP H0252917 B2 JPH0252917 B2 JP H0252917B2
Authority
JP
Japan
Prior art keywords
core material
circular
diaphragm
flat
center
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 - Lifetime
Application number
JP59085452A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60229499A (ja
Inventor
Hitoshi Sato
Masanobu Konno
Kazuro Okuzawa
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 JP8545284A priority Critical patent/JPS60229499A/ja
Publication of JPS60229499A publication Critical patent/JPS60229499A/ja
Publication of JPH0252917B2 publication Critical patent/JPH0252917B2/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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
JP8545284A 1984-04-26 1984-04-26 平面スピ−カ Granted JPS60229499A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8545284A JPS60229499A (ja) 1984-04-26 1984-04-26 平面スピ−カ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8545284A JPS60229499A (ja) 1984-04-26 1984-04-26 平面スピ−カ

Publications (2)

Publication Number Publication Date
JPS60229499A JPS60229499A (ja) 1985-11-14
JPH0252917B2 true JPH0252917B2 (zh) 1990-11-15

Family

ID=13859271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8545284A Granted JPS60229499A (ja) 1984-04-26 1984-04-26 平面スピ−カ

Country Status (1)

Country Link
JP (1) JPS60229499A (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734781B2 (zh) * 1975-02-17 1982-07-24

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734781U (zh) * 1980-08-01 1982-02-24

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734781B2 (zh) * 1975-02-17 1982-07-24

Also Published As

Publication number Publication date
JPS60229499A (ja) 1985-11-14

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