DE3228592C2 - Lautsprechermembran - Google Patents

Lautsprechermembran

Info

Publication number
DE3228592C2
DE3228592C2 DE19823228592 DE3228592A DE3228592C2 DE 3228592 C2 DE3228592 C2 DE 3228592C2 DE 19823228592 DE19823228592 DE 19823228592 DE 3228592 A DE3228592 A DE 3228592A DE 3228592 C2 DE3228592 C2 DE 3228592C2
Authority
DE
Germany
Prior art keywords
weight
polyvinyl chloride
mixture
loudspeaker
graphite flakes
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
DE19823228592
Other languages
German (de)
English (en)
Other versions
DE3228592A1 (de
Inventor
Yasuyuki Tokorozawa Saitama Arai
Sumio Hagiwara
Tsunehiro Tsukagoshi
Shinichi Yokozeki
Toshikazu Yoshino
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of DE3228592A1 publication Critical patent/DE3228592A1/de
Application granted granted Critical
Publication of DE3228592C2 publication Critical patent/DE3228592C2/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
DE19823228592 1981-07-31 1982-07-30 Lautsprechermembran Expired DE3228592C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12118081A JPS5821997A (ja) 1981-07-31 1981-07-31 スピ−カ用振動板

Publications (2)

Publication Number Publication Date
DE3228592A1 DE3228592A1 (de) 1983-03-03
DE3228592C2 true DE3228592C2 (de) 1986-04-24

Family

ID=14804824

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823228592 Expired DE3228592C2 (de) 1981-07-31 1982-07-30 Lautsprechermembran

Country Status (4)

Country Link
JP (1) JPS5821997A (https=)
DE (1) DE3228592C2 (https=)
FR (1) FR2510857A1 (https=)
GB (1) GB2115645B (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831706A1 (de) * 1988-09-17 1990-03-22 Bayer Ag Membran fuer lautsprecher

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8301653A (nl) * 1983-05-10 1984-12-03 Philips Nv Elektro-akoestische omzetter met een luchtdoorlatend membraan.
US5149470A (en) * 1988-08-24 1992-09-22 Mitsubishi Pencil Co., Ltd. Method of making a diaphragm of carbonaceous material
JPH02243097A (ja) * 1989-01-20 1990-09-27 Mitsubishi Pencil Co Ltd 全炭素質音響機器用振動板の製造法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2046274B (en) * 1979-03-23 1983-03-30 Pioneer Electronic Corp Moulding compositions and acoustic articles moulded therefrom
US4404315A (en) * 1979-05-05 1983-09-13 Pioneer Electronic Corporation Molding compositions and diaphragms, arm pipes and head shells molded therefrom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831706A1 (de) * 1988-09-17 1990-03-22 Bayer Ag Membran fuer lautsprecher

Also Published As

Publication number Publication date
GB2115645A (en) 1983-09-07
JPS639798B2 (https=) 1988-03-02
JPS5821997A (ja) 1983-02-09
DE3228592A1 (de) 1983-03-03
FR2510857A1 (fr) 1983-02-04
GB2115645B (en) 1985-06-26
FR2510857B1 (https=) 1985-01-11

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee