JPH0454440B2 - - Google Patents

Info

Publication number
JPH0454440B2
JPH0454440B2 JP57181706A JP18170682A JPH0454440B2 JP H0454440 B2 JPH0454440 B2 JP H0454440B2 JP 57181706 A JP57181706 A JP 57181706A JP 18170682 A JP18170682 A JP 18170682A JP H0454440 B2 JPH0454440 B2 JP H0454440B2
Authority
JP
Japan
Prior art keywords
diaphragm
aluminum oxide
surface material
speaker
weight
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
JP57181706A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5970400A (ja
Inventor
Yoshihiro Mori
Yoshiaki Maruno
Hiroshi Takeuchi
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 JP57181706A priority Critical patent/JPS5970400A/ja
Publication of JPS5970400A publication Critical patent/JPS5970400A/ja
Publication of JPH0454440B2 publication Critical patent/JPH0454440B2/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)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
JP57181706A 1982-10-15 1982-10-15 スピ−カ用振動板 Granted JPS5970400A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57181706A JPS5970400A (ja) 1982-10-15 1982-10-15 スピ−カ用振動板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57181706A JPS5970400A (ja) 1982-10-15 1982-10-15 スピ−カ用振動板

Publications (2)

Publication Number Publication Date
JPS5970400A JPS5970400A (ja) 1984-04-20
JPH0454440B2 true JPH0454440B2 (enrdf_load_stackoverflow) 1992-08-31

Family

ID=16105428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57181706A Granted JPS5970400A (ja) 1982-10-15 1982-10-15 スピ−カ用振動板

Country Status (1)

Country Link
JP (1) JPS5970400A (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5647849A (en) * 1979-09-25 1981-04-30 Canon Inc Terminal control equipment
JPS5669994A (en) * 1979-11-09 1981-06-11 Tdk Corp Diaphragm for audio loudspeaker

Also Published As

Publication number Publication date
JPS5970400A (ja) 1984-04-20

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