NL6805919A - - Google Patents

Info

Publication number
NL6805919A
NL6805919A NL6805919A NL6805919A NL6805919A NL 6805919 A NL6805919 A NL 6805919A NL 6805919 A NL6805919 A NL 6805919A NL 6805919 A NL6805919 A NL 6805919A NL 6805919 A NL6805919 A NL 6805919A
Authority
NL
Netherlands
Application number
NL6805919A
Other versions
NL167542B (nl
NL167542C (nl
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 filed Critical
Publication of NL6805919A publication Critical patent/NL6805919A/xx
Publication of NL167542B publication Critical patent/NL167542B/xx
Application granted granted Critical
Publication of NL167542C publication Critical patent/NL167542C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
NL6805919A 1967-05-15 1968-04-25 Werkwijze voor de vervaardiging van een electreet en aldus vervaardigde electreet. NL167542C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63846367A 1967-05-15 1967-05-15

Publications (3)

Publication Number Publication Date
NL6805919A true NL6805919A (enrdf_load_stackoverflow) 1968-11-18
NL167542B NL167542B (nl) 1981-07-16
NL167542C NL167542C (nl) 1981-12-16

Family

ID=24560137

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6805919A NL167542C (nl) 1967-05-15 1968-04-25 Werkwijze voor de vervaardiging van een electreet en aldus vervaardigde electreet.

Country Status (4)

Country Link
JP (1) JPS5025160B1 (enrdf_load_stackoverflow)
DE (1) DE1639444B2 (enrdf_load_stackoverflow)
GB (3) GB1230402A (enrdf_load_stackoverflow)
NL (1) NL167542C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2059727A1 (enrdf_load_stackoverflow) * 1969-08-28 1971-06-04 Pioneer Electronic Corp

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5121334B2 (enrdf_load_stackoverflow) * 1971-08-27 1976-07-01
CA989514A (en) * 1972-09-08 1976-05-18 Loh-Yi Chang Electromechanical transducer and method of making same
AT323257B (de) * 1973-06-26 1975-07-10 Akg Akustische Kino Geraete Kondensatormikrophon
JPS5130997A (en) * 1974-09-11 1976-03-16 Kureha Chemical Ind Co Ltd Kobunshifuirumu no renzokuseikyokuhoho
US4085297A (en) * 1977-06-13 1978-04-18 Polaroid Corporation Spring force biasing means for electroacoustical transducer components
JPS57188105A (en) * 1981-05-14 1982-11-19 Toshiba Corp Electret constituent
WO2014017204A1 (ja) * 2012-07-25 2014-01-30 株式会社ビスキャス 振動発電体
RU181900U1 (ru) * 2018-04-16 2018-07-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Устройство для изготовления электретов
KR102337495B1 (ko) 2019-12-20 2021-12-09 삼성에스디아이 주식회사 부하 제어회로 감지시스템

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2059727A1 (enrdf_load_stackoverflow) * 1969-08-28 1971-06-04 Pioneer Electronic Corp

Also Published As

Publication number Publication date
NL167542B (nl) 1981-07-16
DE1639444B2 (de) 1972-08-03
NL167542C (nl) 1981-12-16
DE1639444A1 (de) 1971-04-22
GB1230402A (enrdf_load_stackoverflow) 1971-05-05
JPS5025160B1 (enrdf_load_stackoverflow) 1975-08-21
GB1230403A (enrdf_load_stackoverflow) 1971-05-05
GB1230404A (enrdf_load_stackoverflow) 1971-05-05

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Legal Events

Date Code Title Description
TNT Modifications of names of proprietors of patents or applicants of examined patent applications

Owner name: KNOWLES ELECTRONICS COMPANY

V4 Lapsed because of reaching the maxim lifetime of a patent