JPS5337012A - Flame retardant speaker - Google Patents

Flame retardant speaker

Info

Publication number
JPS5337012A
JPS5337012A JP11137776A JP11137776A JPS5337012A JP S5337012 A JPS5337012 A JP S5337012A JP 11137776 A JP11137776 A JP 11137776A JP 11137776 A JP11137776 A JP 11137776A JP S5337012 A JPS5337012 A JP S5337012A
Authority
JP
Japan
Prior art keywords
flame retardant
speaker
retardant speaker
flameretardant
letting
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
JP11137776A
Other languages
Japanese (ja)
Other versions
JPS5534639B2 (en
Inventor
Masahiro Saito
Akira Taniuchi
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.)
Sharp Corp
DKS Co Ltd
Original Assignee
Dai Ichi Kogyo Seiyaku Co Ltd
Sharp Corp
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 Dai Ichi Kogyo Seiyaku Co Ltd, Sharp Corp filed Critical Dai Ichi Kogyo Seiyaku Co Ltd
Priority to JP11137776A priority Critical patent/JPS5337012A/en
Publication of JPS5337012A publication Critical patent/JPS5337012A/en
Publication of JPS5534639B2 publication Critical patent/JPS5534639B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:Improvement in higher flame retardance is achieved without impairing the acoustical performance of a speaker by letting a specific compound flameretardant be picked up or absorbed in a base material composed of cellulosic fibers.
JP11137776A 1976-09-16 1976-09-16 Flame retardant speaker Granted JPS5337012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11137776A JPS5337012A (en) 1976-09-16 1976-09-16 Flame retardant speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11137776A JPS5337012A (en) 1976-09-16 1976-09-16 Flame retardant speaker

Publications (2)

Publication Number Publication Date
JPS5337012A true JPS5337012A (en) 1978-04-05
JPS5534639B2 JPS5534639B2 (en) 1980-09-08

Family

ID=14559634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11137776A Granted JPS5337012A (en) 1976-09-16 1976-09-16 Flame retardant speaker

Country Status (1)

Country Link
JP (1) JPS5337012A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115939U (en) * 1979-02-09 1980-08-15
JPS56116396A (en) * 1980-02-19 1981-09-12 Victor Co Of Japan Ltd Unidirectional microphone system with secondary sound pressure gradient
JPS593685U (en) * 1982-06-30 1984-01-11 ソニー株式会社 Microphone sensitivity switching circuit
JPH04122111A (en) * 1990-09-13 1992-04-22 Rion Co Ltd Preamplifier for capacitor microphone

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55115939U (en) * 1979-02-09 1980-08-15
JPS56116396A (en) * 1980-02-19 1981-09-12 Victor Co Of Japan Ltd Unidirectional microphone system with secondary sound pressure gradient
JPS624039B2 (en) * 1980-02-19 1987-01-28 Victor Company Of Japan
JPS593685U (en) * 1982-06-30 1984-01-11 ソニー株式会社 Microphone sensitivity switching circuit
JPH04122111A (en) * 1990-09-13 1992-04-22 Rion Co Ltd Preamplifier for capacitor microphone

Also Published As

Publication number Publication date
JPS5534639B2 (en) 1980-09-08

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