FR2642254A1 - Procede de preparation d'un diaphragme entierement carbone pour emploi dans un equipement acoustique - Google Patents

Procede de preparation d'un diaphragme entierement carbone pour emploi dans un equipement acoustique Download PDF

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Publication number
FR2642254A1
FR2642254A1 FR9000504A FR9000504A FR2642254A1 FR 2642254 A1 FR2642254 A1 FR 2642254A1 FR 9000504 A FR9000504 A FR 9000504A FR 9000504 A FR9000504 A FR 9000504A FR 2642254 A1 FR2642254 A1 FR 2642254A1
Authority
FR
France
Prior art keywords
resin
sheet
resin containing
triazine
melamine
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.)
Withdrawn
Application number
FR9000504A
Other languages
English (en)
French (fr)
Inventor
Yoshihisa Suda
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.)
Mitsubishi Pencil Co Ltd
Original Assignee
Mitsubishi Pencil 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 Mitsubishi Pencil Co Ltd filed Critical Mitsubishi Pencil Co Ltd
Publication of FR2642254A1 publication Critical patent/FR2642254A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Ceramic Products (AREA)
FR9000504A 1989-01-20 1990-01-17 Procede de preparation d'un diaphragme entierement carbone pour emploi dans un equipement acoustique Withdrawn FR2642254A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1009976A JPH02243097A (ja) 1989-01-20 1989-01-20 全炭素質音響機器用振動板の製造法

Publications (1)

Publication Number Publication Date
FR2642254A1 true FR2642254A1 (fr) 1990-07-27

Family

ID=11734943

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9000504A Withdrawn FR2642254A1 (fr) 1989-01-20 1990-01-17 Procede de preparation d'un diaphragme entierement carbone pour emploi dans un equipement acoustique

Country Status (6)

Country Link
US (1) US5152938A (enExample)
JP (1) JPH02243097A (enExample)
DE (1) DE4001059A1 (enExample)
FR (1) FR2642254A1 (enExample)
GB (1) GB2229338A (enExample)
IT (1) IT1238069B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001160998A (ja) * 1999-12-01 2001-06-12 Mitsubishi Pencil Co Ltd 圧電発音体用振動板とその製造方法
JP3948000B2 (ja) * 2003-08-26 2007-07-25 松下電器産業株式会社 高熱伝導性部材及びその製造方法ならびにそれを用いた放熱システム
US20070187171A1 (en) * 2006-01-27 2007-08-16 Victor Company Of Japan, Limited Production method of an acoustic diaphragm, acoustic diaphragm, and a speaker
WO2008084641A1 (ja) * 2006-12-22 2008-07-17 Panasonic Corporation スピーカ用振動板と、スピーカ用フレームと、スピーカ用ダストキャップと、これらを用いたスピーカと装置と、スピーカ用部品の製造方法
JP6465024B2 (ja) * 2013-07-31 2019-02-06 日産化学株式会社 炭素材料分散膜形成用組成物
US9676631B2 (en) 2014-07-21 2017-06-13 Lori Bracamonte Reaction bonded silicon carbide bodies made from high purity carbonaceous preforms
CN111423244A (zh) * 2020-03-27 2020-07-17 深圳市威泽科技有限公司 一种耳机使用的碳素材料及制备方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032222A (en) * 1978-09-29 1980-04-30 Pioneer Electronic Corp Diaphragm for use in an acoustic instrument and a method of producing the same
JPS56103244A (en) * 1980-12-29 1981-08-18 Pioneer Electronic Corp Molding material
FR2510857A1 (fr) * 1981-07-31 1983-02-04 Pioneer Electronic Corp Membrane de haut-parleur
JPS59191779A (ja) * 1983-04-15 1984-10-30 Mitsubishi Pencil Co Ltd 鉛筆芯の製造方法
JPS60210097A (ja) * 1984-04-03 1985-10-22 Totoku Electric Co Ltd 耐熱ボイスコイルの製造法
JPS61237598A (ja) * 1985-04-15 1986-10-22 Mitsubishi Pencil Co Ltd 音響機器用振動板の製造法
JPS63175600A (ja) * 1987-01-16 1988-07-19 Mitsubishi Pencil Co Ltd 全炭素質音響機器用振動板の製造方法
FR2649276A1 (fr) * 1988-08-24 1991-01-04 Mitsubishi Pencil Co Procede de fabrication d'une membrane totalement carbonee pour equipement acoustique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61151282A (ja) * 1984-12-25 1986-07-09 Mitsubishi Pencil Co Ltd 鉛筆芯の製造方法
JPS63171100A (ja) * 1987-01-09 1988-07-14 Mitsubishi Pencil Co Ltd 全炭素質スピ−カ−用振動板の製造方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2032222A (en) * 1978-09-29 1980-04-30 Pioneer Electronic Corp Diaphragm for use in an acoustic instrument and a method of producing the same
JPS56103244A (en) * 1980-12-29 1981-08-18 Pioneer Electronic Corp Molding material
FR2510857A1 (fr) * 1981-07-31 1983-02-04 Pioneer Electronic Corp Membrane de haut-parleur
JPS59191779A (ja) * 1983-04-15 1984-10-30 Mitsubishi Pencil Co Ltd 鉛筆芯の製造方法
JPS60210097A (ja) * 1984-04-03 1985-10-22 Totoku Electric Co Ltd 耐熱ボイスコイルの製造法
JPS61237598A (ja) * 1985-04-15 1986-10-22 Mitsubishi Pencil Co Ltd 音響機器用振動板の製造法
JPS63175600A (ja) * 1987-01-16 1988-07-19 Mitsubishi Pencil Co Ltd 全炭素質音響機器用振動板の製造方法
FR2649276A1 (fr) * 1988-08-24 1991-01-04 Mitsubishi Pencil Co Procede de fabrication d'une membrane totalement carbonee pour equipement acoustique

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL Week 8140, Derwent Publications Ltd., London, GB; AN 81-72575D & JP-A-56 103 244 (PIONEER ELECTRONIC CORP.) 18 Août 1981 *
DATABASE WPIL Week 8449, Derwent Publications Ltd., London, GB; AN 84-305015 & JP-A-59 191 779 (MITSUBISHI PENCIL) 30 Octobre 1984 *
DATABASE WPIL Week 8835, Derwent Publications Ltd., London, GB; AN 88-244729 & JP-A-63 175 600 (MITSUBISHI PENCIL) 19 Juillet 1988 *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 058 (E-386)7 Mars 1986 & JP-A-60 210 097 ( TOUKIYOU TOKUSHIYU DENSEN KK ) 22 Octobre 1985 *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 83 (E-489)13 Mars 1987 & JP-A-61 237 598 ( MITSUBISHI PENCIL CO. LTD. ) 22 Octobre 1986 *

Also Published As

Publication number Publication date
IT9019107A1 (it) 1991-07-19
IT1238069B (it) 1993-07-03
GB9001165D0 (en) 1990-03-21
DE4001059C2 (enExample) 1992-07-30
US5152938A (en) 1992-10-06
JPH02243097A (ja) 1990-09-27
IT9019107A0 (it) 1990-01-19
DE4001059A1 (de) 1990-08-09
GB2229338A (en) 1990-09-19

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