NL7403471A - Elektrostatische transducent. - Google Patents

Elektrostatische transducent.

Info

Publication number
NL7403471A
NL7403471A NL7403471A NL7403471A NL7403471A NL 7403471 A NL7403471 A NL 7403471A NL 7403471 A NL7403471 A NL 7403471A NL 7403471 A NL7403471 A NL 7403471A NL 7403471 A NL7403471 A NL 7403471A
Authority
NL
Netherlands
Prior art keywords
transducent
electrostatic
electrostatic transducent
Prior art date
Application number
NL7403471A
Other languages
English (en)
Other versions
NL179104C (nl
NL179104B (nl
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NLAANVRAGE7403471,A priority Critical patent/NL179104C/nl
Priority to DE2510279A priority patent/DE2510279C2/de
Priority to US05/557,274 priority patent/US4016375A/en
Priority to JP50029180A priority patent/JPS5951199B2/ja
Priority to GB10306/75A priority patent/GB1504314A/en
Priority to AT189775A priority patent/AT332464B/de
Priority to FR7508035A priority patent/FR2289089A1/fr
Publication of NL7403471A publication Critical patent/NL7403471A/nl
Publication of NL179104B publication Critical patent/NL179104B/nl
Application granted granted Critical
Publication of NL179104C publication Critical patent/NL179104C/nl

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
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
    • H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
NLAANVRAGE7403471,A 1974-03-15 1974-03-15 Elektrostatische transducent. NL179104C (nl)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NLAANVRAGE7403471,A NL179104C (nl) 1974-03-15 1974-03-15 Elektrostatische transducent.
DE2510279A DE2510279C2 (de) 1974-03-15 1975-03-08 Elektrostatischer Wandler
US05/557,274 US4016375A (en) 1974-03-15 1975-03-11 Electret transducer
JP50029180A JPS5951199B2 (ja) 1974-03-15 1975-03-12 静電変換器
GB10306/75A GB1504314A (en) 1974-03-15 1975-03-12 Electrostatic transducer
AT189775A AT332464B (de) 1974-03-15 1975-03-12 Elektrostatischer wandler
FR7508035A FR2289089A1 (fr) 1974-03-15 1975-03-14 Transducteur electrostatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7403471,A NL179104C (nl) 1974-03-15 1974-03-15 Elektrostatische transducent.

Publications (3)

Publication Number Publication Date
NL7403471A true NL7403471A (nl) 1975-09-17
NL179104B NL179104B (nl) 1986-02-03
NL179104C NL179104C (nl) 1986-07-01

Family

ID=19820964

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7403471,A NL179104C (nl) 1974-03-15 1974-03-15 Elektrostatische transducent.

Country Status (7)

Country Link
US (1) US4016375A (nl)
JP (1) JPS5951199B2 (nl)
AT (1) AT332464B (nl)
DE (1) DE2510279C2 (nl)
FR (1) FR2289089A1 (nl)
GB (1) GB1504314A (nl)
NL (1) NL179104C (nl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726994B1 (en) * 1998-11-18 2004-04-27 Daikin Industries, Ltd. Structural member of fluorine-containing polymer having adhesive property at high temperature and sliding material produced by using same
US8559660B2 (en) * 2007-07-12 2013-10-15 Industrial Technology Research Institute Electrostatic electroacoustic transducers
BRPI0819048C8 (pt) * 2007-12-06 2018-08-07 3M Innovative Properties Co "meio filtrante de eletreto e método de preparo de uma manta de eletreto"
BRPI0909959B1 (pt) * 2008-06-02 2018-11-13 3M Innovative Properties Co manta de eletreto e meio de filtro à base de eletreto
WO2009148747A2 (en) * 2008-06-02 2009-12-10 3M Innovative Properties Company Charge-enhancing additives for electrets
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
JP2011528610A (ja) * 2008-06-30 2011-11-24 スリーエム イノベイティブ プロパティズ カンパニー 多孔性基材フィールド内の金属ナノクラスターのその場での形成方法
US20110290119A1 (en) 2009-02-20 2011-12-01 3M Innovative Properties Company Antimicrobial electret web
TWI708473B (zh) * 2019-09-27 2020-10-21 華碩電腦股份有限公司 致動器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3711941A (en) * 1970-11-02 1973-01-23 Bell Telephone Labor Inc Fabrication of electret transducer elements using low energy electron beam
US3770711A (en) * 1972-01-31 1973-11-06 Du Pont Oriented structures of tetrafluoroethylene/perfluoro (alkyl vinyl ether) copolymer
NL7210088A (nl) * 1972-07-21 1974-01-23

Also Published As

Publication number Publication date
DE2510279C2 (de) 1982-04-15
JPS5951199B2 (ja) 1984-12-12
DE2510279A1 (de) 1975-09-18
FR2289089B3 (nl) 1977-11-18
JPS50128520A (nl) 1975-10-09
AT332464B (de) 1976-09-27
NL179104C (nl) 1986-07-01
NL179104B (nl) 1986-02-03
ATA189775A (de) 1976-01-15
USB557274I5 (nl) 1976-03-23
GB1504314A (en) 1978-03-15
US4016375A (en) 1977-04-05
FR2289089A1 (fr) 1976-05-21

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee