JPS542113A - Diaphragm for speakers - Google Patents

Diaphragm for speakers

Info

Publication number
JPS542113A
JPS542113A JP6855777A JP6855777A JPS542113A JP S542113 A JPS542113 A JP S542113A JP 6855777 A JP6855777 A JP 6855777A JP 6855777 A JP6855777 A JP 6855777A JP S542113 A JPS542113 A JP S542113A
Authority
JP
Japan
Prior art keywords
diaphragm
speakers
workability
difficulty
molding
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
JP6855777A
Other languages
Japanese (ja)
Inventor
Shintaro Hirose
Yasushi Miyoshi
Masahiro Higuchi
Yoshinobu Nishikawa
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP6855777A priority Critical patent/JPS542113A/en
Publication of JPS542113A publication Critical patent/JPS542113A/en
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

Landscapes

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

Abstract

PURPOSE:To obtain a diaphragm of high specific elastic modulus without any difficulty in workability in molding by covering the surface of a metal porous material having high voids with carbon by a chemical vapor plating method.
JP6855777A 1977-06-07 1977-06-07 Diaphragm for speakers Pending JPS542113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6855777A JPS542113A (en) 1977-06-07 1977-06-07 Diaphragm for speakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6855777A JPS542113A (en) 1977-06-07 1977-06-07 Diaphragm for speakers

Publications (1)

Publication Number Publication Date
JPS542113A true JPS542113A (en) 1979-01-09

Family

ID=13377172

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6855777A Pending JPS542113A (en) 1977-06-07 1977-06-07 Diaphragm for speakers

Country Status (1)

Country Link
JP (1) JPS542113A (en)

Similar Documents

Publication Publication Date Title
JPS51149129A (en) Method of producing zincccoated iron plate with good workability
GB2046233B (en) Process for the production of hydrogen cyanide
ES469142A1 (en) Process for assembling a porous membrane on a support and assembly produced in this manner
GB2001336B (en) Process for the production of hydrogen
JPS542113A (en) Diaphragm for speakers
JPS5253688A (en) Thickness sliding crystal vibrator
JPS5422819A (en) Speaker diaphragm
GB1524660A (en) Rocess for the production of benzoyl cyanide
GB1520727A (en) Process for the production of benzoyl cyanide
JPS542993A (en) Thermochemical production of hydrogen using wate as raw material
JPS522427A (en) Oscillating plate for loud-speaker
JPS5219905A (en) Acousticon
JPS5392121A (en) Method of supporting microphone
JPS52111714A (en) Electrokinetic type electroacoustic transducer with metallic vibr ating plate
JPS523424A (en) Non-combustible speaker vibration plate
ZA785610B (en) Process for the manufacture of a permeable diaphragm for an electrolysis cell
JPS531514A (en) Key assignor for electronic instrument
JPS53106026A (en) Acoustic diaphragm and production of the same
JPS527656A (en) Film material for radomes
JPS52119220A (en) Diaphragm for speakers
JPS5261947A (en) Manufacture of cutoff filter
JPS527234A (en) Method for manufacturing diaphragm for the speaker
JPS5278341A (en) Biresonance piezoelectric filter
JPS51126822A (en) Fiber-reinforced resin casting for vibration plate of speaker
JPS5263320A (en) Speaker