JPS639800B2 - - Google Patents

Info

Publication number
JPS639800B2
JPS639800B2 JP20246181A JP20246181A JPS639800B2 JP S639800 B2 JPS639800 B2 JP S639800B2 JP 20246181 A JP20246181 A JP 20246181A JP 20246181 A JP20246181 A JP 20246181A JP S639800 B2 JPS639800 B2 JP S639800B2
Authority
JP
Japan
Prior art keywords
polypropylene
diaphragm
weight
speaker
butyl rubber
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
JP20246181A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58104595A (ja
Inventor
Kosaku Momotake
Mamoru Ishida
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia 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 Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP20246181A priority Critical patent/JPS58104595A/ja
Publication of JPS58104595A publication Critical patent/JPS58104595A/ja
Publication of JPS639800B2 publication Critical patent/JPS639800B2/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)
JP20246181A 1981-12-17 1981-12-17 スピ−カ用振動板 Granted JPS58104595A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20246181A JPS58104595A (ja) 1981-12-17 1981-12-17 スピ−カ用振動板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20246181A JPS58104595A (ja) 1981-12-17 1981-12-17 スピ−カ用振動板

Publications (2)

Publication Number Publication Date
JPS58104595A JPS58104595A (ja) 1983-06-22
JPS639800B2 true JPS639800B2 (enExample) 1988-03-02

Family

ID=16457909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20246181A Granted JPS58104595A (ja) 1981-12-17 1981-12-17 スピ−カ用振動板

Country Status (1)

Country Link
JP (1) JPS58104595A (enExample)

Also Published As

Publication number Publication date
JPS58104595A (ja) 1983-06-22

Similar Documents

Publication Publication Date Title
US4229504A (en) Polyolefin composition having high impact resistance and high temperature flow resistance
JPH0254000B2 (enExample)
JPS639800B2 (enExample)
USRE31213E (en) Polyolefin composition having high impact resistance and high temperature flow resistance
JPH06284496A (ja) 音響振動板
US4471084A (en) Diaphragm for loudspeakers
JPH0528258B2 (enExample)
JP3145546B2 (ja) スピーカ用エッジ
JPS6332822B2 (enExample)
JP2843391B2 (ja) ポリプロピレン系樹脂組成物
JPS61114696A (ja) スピ−カ用振動板
JPS6264839A (ja) 重合体組成物
WO2021005807A1 (ja) 音響部材用組成物および音響部材
JPH0241960B2 (enExample)
JPH0632939A (ja) 音響機器用樹脂組成物
JPH04345298A (ja) スピーカー振動板
JPS6138916B2 (enExample)
JPS6094444A (ja) ゼリ−様ｐｖｃ組成物
JPS6264840A (ja) セルロ−ス系高分子を含有する重合体組成物
JPS58114598A (ja) スピ−カ−用コ−ン材料
JPS6040974B2 (ja) 合成ゴムとコルクの弾性体
JPS5871792A (ja) 音響機器用キヤビネツト構成体
JPS5928794A (ja) スピ−カ振動板
JPS5871797A (ja) 音響機器用成形材料
JPS6264838A (ja) セルロ−ス系高分子含有重合体の組成物