CA1092746A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
CA1092746A
CA1092746A CA287,292A CA287292A CA1092746A CA 1092746 A CA1092746 A CA 1092746A CA 287292 A CA287292 A CA 287292A CA 1092746 A CA1092746 A CA 1092746A
Authority
CA
Canada
Prior art keywords
film
diaphragm
speaker diaphragm
speaker
bisphenol
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
CA287,292A
Other languages
English (en)
French (fr)
Inventor
Kosaku Murata
Satoshi Takayama
Hirotoshi Niguchi
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
Application granted granted Critical
Publication of CA1092746A publication Critical patent/CA1092746A/en
Expired 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)
CA287,292A 1976-09-30 1977-09-22 Speaker diaphragm Expired CA1092746A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11811076A JPS5343515A (en) 1976-09-30 1976-09-30 Diaphragm for speaker
JP118110/76 1976-09-30

Publications (1)

Publication Number Publication Date
CA1092746A true CA1092746A (en) 1980-12-30

Family

ID=14728260

Family Applications (1)

Application Number Title Priority Date Filing Date
CA287,292A Expired CA1092746A (en) 1976-09-30 1977-09-22 Speaker diaphragm

Country Status (5)

Country Link
US (1) US4173701A (enExample)
JP (1) JPS5343515A (enExample)
CA (1) CA1092746A (enExample)
DE (1) DE2743640C3 (enExample)
GB (1) GB1575549A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330662A (en) * 1980-10-27 1982-05-18 The Dow Chemical Company Ordered copolyestercarbonate resins
JPS57199397A (en) * 1981-06-01 1982-12-07 Pioneer Electronic Corp Diaphragm with flame resistance
JPS5871798A (ja) * 1981-10-26 1983-04-28 Sony Corp ダイナミツク型ヘツドホン
US4487877A (en) * 1981-12-07 1984-12-11 Matsushita Electric Industrial Co., Ltd. Diaphragm for loudspeaker
JPS5897999A (ja) * 1981-12-07 1983-06-10 Matsushita Electric Ind Co Ltd スピ−カ用振動板
DE3507726A1 (de) * 1985-03-05 1986-09-11 Standard Elektrik Lorenz Ag, 7000 Stuttgart Membran fuer planarlautsprecher
US4903308A (en) * 1988-02-10 1990-02-20 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
US5198624A (en) * 1988-02-10 1993-03-30 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
DE3831706A1 (de) * 1988-09-17 1990-03-22 Bayer Ag Membran fuer lautsprecher
KR100971638B1 (ko) * 2002-06-28 2010-07-22 로포 하이 테크 필름 게엠베하 주조 폴리아릴레이트 필름으로 제조된 격막

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446866A (en) * 1972-10-18 1976-08-18 Turner Machinery Ltd Arena-measruing machines

Also Published As

Publication number Publication date
GB1575549A (en) 1980-09-24
JPS5546113B2 (enExample) 1980-11-21
DE2743640B2 (de) 1979-07-05
DE2743640C3 (de) 1980-03-13
US4173701A (en) 1979-11-06
JPS5343515A (en) 1978-04-19
DE2743640A1 (de) 1978-04-06

Similar Documents

Publication Publication Date Title
CA1092746A (en) Speaker diaphragm
AU632394B2 (en) Thermoplastic polyester series resin foamed material and production process thereof
KR930002990B1 (ko) 폴리이미드필름 및 그 제조방법
US3664911A (en) Diaphragm for sound instrument and method for producing same
US3618442A (en) Vibrating plates for sound instruments and method of manufacturing the same
US6333377B1 (en) Ingot support device for slicing silicon
US4273900A (en) Diaphragm for acoustic equipment
US6148953A (en) Loudspeaker component and resin composition therefor
US4362772A (en) Vibratory elements for audio equipment
US4487877A (en) Diaphragm for loudspeaker
US4472543A (en) Flame retardant diaphragm for acoustic transducers
JPH0373200B2 (enExample)
US5149486A (en) Method for manufacturing speaker vibration member
CN106221145A (zh) 一种改性材料及乐器弦
JPH0349240B2 (enExample)
JPH04220440A (ja) 二次発泡成形性、強度に優れたスチレン系樹脂発泡体
JPH0349239B2 (enExample)
JP3407898B2 (ja) 透明フィルム成形方法
JPS63251223A (ja) ポリエ−テルサルホンフイルムの製造方法
JPS5828960B2 (ja) スピ−カ−用振動板
JP3436579B2 (ja) インフレーションフィルム成形用ポリエチレン樹脂およびフィルムの製造方法
JP3123279B2 (ja) スピーカ用振動板
JPS62253300A (ja) スピーカ用振動板
JPS62265891A (ja) スピ−カ用振動板
JPS6030300A (ja) 難燃性振動板の製造方法

Legal Events

Date Code Title Description
MKEX Expiry