DE69124024D1 - Verfahren zur Herstellung einer akustischen Membran - Google Patents

Verfahren zur Herstellung einer akustischen Membran

Info

Publication number
DE69124024D1
DE69124024D1 DE69124024T DE69124024T DE69124024D1 DE 69124024 D1 DE69124024 D1 DE 69124024D1 DE 69124024 T DE69124024 T DE 69124024T DE 69124024 T DE69124024 T DE 69124024T DE 69124024 D1 DE69124024 D1 DE 69124024D1
Authority
DE
Germany
Prior art keywords
manufacturing
acoustic membrane
acoustic
membrane
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 - Fee Related
Application number
DE69124024T
Other languages
English (en)
Other versions
DE69124024T2 (de
Inventor
Kazuhiro Watanabe
Mutsuaki Murakami
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
Priority claimed from JP2199407A external-priority patent/JP2584114B2/ja
Priority claimed from JP19940690A external-priority patent/JPH0484599A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE69124024D1 publication Critical patent/DE69124024D1/de
Application granted granted Critical
Publication of DE69124024T2 publication Critical patent/DE69124024T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • 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
    • C04B35/524—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 polymer precursors, e.g. glass-like carbon material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B29K2077/10—Aromatic polyamides [polyaramides] or derivatives thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2079/00—Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain, not provided for in groups B29K2061/00 - B29K2077/00, as moulding material
    • B29K2079/08—PI, i.e. polyimides or derivatives thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DE69124024T 1990-07-27 1991-07-26 Verfahren zur Herstellung einer akustischen Membran Expired - Fee Related DE69124024T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2199407A JP2584114B2 (ja) 1990-07-27 1990-07-27 音響振動板の製造方法
JP19940690A JPH0484599A (ja) 1990-07-27 1990-07-27 音響振動板の製造方法

Publications (2)

Publication Number Publication Date
DE69124024D1 true DE69124024D1 (de) 1997-02-20
DE69124024T2 DE69124024T2 (de) 1997-05-15

Family

ID=26511523

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69124024T Expired - Fee Related DE69124024T2 (de) 1990-07-27 1991-07-26 Verfahren zur Herstellung einer akustischen Membran

Country Status (3)

Country Link
US (1) US5178804A (de)
EP (1) EP0468524B1 (de)
DE (1) DE69124024T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6717337B2 (en) 2001-05-23 2004-04-06 The United States Of America As Represented By The Secretary Of The Navy Piezoelectric acoustic actuator
JP4714371B2 (ja) 2001-06-06 2011-06-29 ポリマテック株式会社 熱伝導性成形体及びその製造方法
US7331984B2 (en) * 2001-08-28 2008-02-19 Glaukos Corporation Glaucoma stent for treating glaucoma and methods of use
TWI473838B (zh) * 2013-11-13 2015-02-21 財團法人工業技術研究院 聚醯胺酸、聚亞醯胺、及石墨片的製作方法
CN103929710A (zh) * 2014-04-25 2014-07-16 瑞声光电科技(常州)有限公司 一种复合振膜的制备方法
CN103929709A (zh) * 2014-04-25 2014-07-16 瑞声光电科技(常州)有限公司 一种复合振膜的制备方法
CN106162454B (zh) * 2016-08-31 2021-10-08 歌尔股份有限公司 扬声器振膜、扬声器单体及电子设备
JP7340514B2 (ja) * 2018-03-01 2023-09-07 株式会社カネカ Ｍｅｍｓ振動子、およびｍｅｍｓ発振器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS516014A (ja) * 1974-07-02 1976-01-19 Toa Electric Co Ltd Onkyokikyoshindoban
JPS5487209A (en) * 1977-12-23 1979-07-11 Pioneer Electronic Corp Method of fabricating acoustic device vibrating plate
JPS5532318A (en) * 1978-08-28 1980-03-07 Yuasa Battery Co Ltd Method for separating and sending out separator
EP0203581B1 (de) * 1985-05-30 1991-08-14 Research Development Corporation of Japan Verfahren zum Erzeugen von Graphit
DE3871660T2 (de) * 1987-08-26 1993-01-21 Japan Res Dev Corp Verfahren zur herstellung eines graphitfilms oder -blatts und strahlungsoptische vorrichtung, in der das graphitblatt verwendet wird.
JPH01203208A (ja) * 1988-02-10 1989-08-16 Toyo Carbon Kk 高配向黒鉛の製造方法
JPH01259698A (ja) * 1988-04-08 1989-10-17 Res Dev Corp Of Japan 振動板、電気音響変換器および振動板の製造方法
JPH01294742A (ja) * 1988-05-20 1989-11-28 Nitto Denko Corp グラファイトフイルム成形品
DE68928048T2 (de) * 1988-09-20 1997-11-13 Matsushita Electric Ind Co Ltd Verfahren zur Herstellung gebogener Graphitgegenstände
DE3907660A1 (de) * 1989-03-09 1990-09-13 Mitsubishi Pencil Co Verfahren zur herstellung eines diaphragmas fuer eine akustikanlage aus vollstaendig kohlenstoffhaltigen materialien
JP2805088B2 (ja) * 1989-07-21 1998-09-30 日清紡績株式会社 スピーカー用振動板及びその製造方法
JPH0385899A (ja) * 1989-08-29 1991-04-11 Matsushita Electric Ind Co Ltd 音響振動板

Also Published As

Publication number Publication date
EP0468524A2 (de) 1992-01-29
US5178804A (en) 1993-01-12
DE69124024T2 (de) 1997-05-15
EP0468524A3 (en) 1993-01-27
EP0468524B1 (de) 1997-01-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee