JPS556905A - Diaphragm for acoustic apparatus and its manufacture - Google Patents

Diaphragm for acoustic apparatus and its manufacture

Info

Publication number
JPS556905A
JPS556905A JP7857478A JP7857478A JPS556905A JP S556905 A JPS556905 A JP S556905A JP 7857478 A JP7857478 A JP 7857478A JP 7857478 A JP7857478 A JP 7857478A JP S556905 A JPS556905 A JP S556905A
Authority
JP
Japan
Prior art keywords
diaphragm
organic material
lignin
acoustic apparatus
vinyl chloride
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.)
Pending
Application number
JP7857478A
Other languages
English (en)
Japanese (ja)
Inventor
Nobuhiro Tsukagoshi
Shinichi Yokozeki
Toshikazu Yoshino
Yasuyuki Arai
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
Priority to JP7857478A priority Critical patent/JPS556905A/ja
Priority to GB7923010A priority patent/GB2026816B/en
Priority to DE19792926648 priority patent/DE2926648C2/de
Publication of JPS556905A publication Critical patent/JPS556905A/ja
Pending 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Ceramic Products (AREA)
JP7857478A 1978-06-30 1978-06-30 Diaphragm for acoustic apparatus and its manufacture Pending JPS556905A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7857478A JPS556905A (en) 1978-06-30 1978-06-30 Diaphragm for acoustic apparatus and its manufacture
GB7923010A GB2026816B (en) 1978-06-30 1979-07-02 Diaphragms for acoustic instruments and method of producing the same
DE19792926648 DE2926648C2 (de) 1978-06-30 1979-07-02 In einem akustischen Instrument, insbesondere einem Lautsprecher, einsetzbare Membran und Verfahren zur Herstellung der Membran

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7857478A JPS556905A (en) 1978-06-30 1978-06-30 Diaphragm for acoustic apparatus and its manufacture

Publications (1)

Publication Number Publication Date
JPS556905A true JPS556905A (en) 1980-01-18

Family

ID=13665662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7857478A Pending JPS556905A (en) 1978-06-30 1978-06-30 Diaphragm for acoustic apparatus and its manufacture

Country Status (3)

Country Link
JP (1) JPS556905A (de)
DE (1) DE2926648C2 (de)
GB (1) GB2026816B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01157338U (de) * 1988-04-20 1989-10-30
US4961636A (en) * 1987-03-09 1990-10-09 Ernst Leitz Wetzlar Gmbh Revolving nose piece for optical components and process for adjusting the number of revolutions thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000791A1 (en) * 1981-08-27 1983-03-03 Hasumi, Shigeru Vibrating plate for speaker
US4487877A (en) * 1981-12-07 1984-12-11 Matsushita Electric Industrial Co., Ltd. Diaphragm for loudspeaker
DE3831706A1 (de) * 1988-09-17 1990-03-22 Bayer Ag Membran fuer lautsprecher
JP2001298791A (ja) * 2000-04-13 2001-10-26 Sony Corp スピーカ及びその製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5487209A (en) * 1977-12-23 1979-07-11 Pioneer Electronic Corp Method of fabricating acoustic device vibrating plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961636A (en) * 1987-03-09 1990-10-09 Ernst Leitz Wetzlar Gmbh Revolving nose piece for optical components and process for adjusting the number of revolutions thereof
JPH01157338U (de) * 1988-04-20 1989-10-30

Also Published As

Publication number Publication date
GB2026816A (en) 1980-02-06
DE2926648A1 (de) 1980-01-17
GB2026816B (en) 1982-10-13
DE2926648C2 (de) 1983-07-21

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