JPS6239600B2 - - Google Patents
Info
- Publication number
- JPS6239600B2 JPS6239600B2 JP2834780A JP2834780A JPS6239600B2 JP S6239600 B2 JPS6239600 B2 JP S6239600B2 JP 2834780 A JP2834780 A JP 2834780A JP 2834780 A JP2834780 A JP 2834780A JP S6239600 B2 JPS6239600 B2 JP S6239600B2
- Authority
- JP
- Japan
- Prior art keywords
- polymer film
- electrode plate
- film
- polarizing
- polarization
- 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
Links
- 229920006254 polymer film Polymers 0.000 claims description 95
- 230000010287 polarization Effects 0.000 claims description 30
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 description 12
- 238000003466 welding Methods 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000004927 fusion Effects 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000002775 capsule Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920006289 polycarbonate film Polymers 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2834780A JPS56125200A (en) | 1980-03-06 | 1980-03-06 | Electrode plate electret for electrostatic type electro-acoustic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2834780A JPS56125200A (en) | 1980-03-06 | 1980-03-06 | Electrode plate electret for electrostatic type electro-acoustic converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56125200A JPS56125200A (en) | 1981-10-01 |
| JPS6239600B2 true JPS6239600B2 (enrdf_load_stackoverflow) | 1987-08-24 |
Family
ID=12246062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2834780A Granted JPS56125200A (en) | 1980-03-06 | 1980-03-06 | Electrode plate electret for electrostatic type electro-acoustic converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125200A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4697763B2 (ja) * | 2001-07-31 | 2011-06-08 | パナソニック株式会社 | コンデンサマイクロホン |
| JP4746291B2 (ja) * | 2004-08-05 | 2011-08-10 | オリンパス株式会社 | 静電容量型超音波振動子、及びその製造方法 |
| JP4729290B2 (ja) * | 2004-11-15 | 2011-07-20 | 株式会社オーディオテクニカ | エレクトレットコンデンサマイクロホンユニットの製造方法 |
| JP4877780B2 (ja) * | 2006-11-17 | 2012-02-15 | 株式会社オーディオテクニカ | エレクトレットコンデンサマイクロホンユニットおよびエレクトレットコンデンサマイクロホン |
| JP5729280B2 (ja) * | 2011-11-30 | 2015-06-03 | ヤマハ株式会社 | 静電型スピーカ |
-
1980
- 1980-03-06 JP JP2834780A patent/JPS56125200A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56125200A (en) | 1981-10-01 |
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