JPS5115599B1 - - Google Patents
Info
- Publication number
- JPS5115599B1 JPS5115599B1 JP5601771A JP5601771A JPS5115599B1 JP S5115599 B1 JPS5115599 B1 JP S5115599B1 JP 5601771 A JP5601771 A JP 5601771A JP 5601771 A JP5601771 A JP 5601771A JP S5115599 B1 JPS5115599 B1 JP S5115599B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Filtering Materials (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5601771A JPS5115599B1 (en) | 1971-07-28 | 1971-07-28 | |
| GB3492872A GB1340158A (en) | 1971-07-28 | 1972-07-26 | Electret devices |
| FR7227119A FR2147264B1 (en) | 1971-07-28 | 1972-07-27 | |
| DE19722237413 DE2237413A1 (en) | 1971-07-28 | 1972-07-27 | ELECTRIC DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5601771A JPS5115599B1 (en) | 1971-07-28 | 1971-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5115599B1 true JPS5115599B1 (en) | 1976-05-18 |
Family
ID=13015277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5601771A Pending JPS5115599B1 (en) | 1971-07-28 | 1971-07-28 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5115599B1 (en) |
| DE (1) | DE2237413A1 (en) |
| FR (1) | FR2147264B1 (en) |
| GB (1) | GB1340158A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7410408L (en) * | 1974-08-15 | 1976-01-19 | Ericsson Telefon Ab L M | PROCEDURE FOR MANUFACTURING AN ELECTRIC MICROPHONE WITH A CAREFULLY DETERMINED AIR GAP. |
| JPS55157223A (en) | 1979-05-25 | 1980-12-06 | Tokyo Shibaura Electric Co | Method of manufacturing electret |
| AT374326B (en) * | 1982-07-22 | 1984-04-10 | Akg Akustische Kino Geraete | ELECTROSTATIC CONVERTER, ESPECIALLY CONDENSER MICROPHONE |
-
1971
- 1971-07-28 JP JP5601771A patent/JPS5115599B1/ja active Pending
-
1972
- 1972-07-26 GB GB3492872A patent/GB1340158A/en not_active Expired
- 1972-07-27 FR FR7227119A patent/FR2147264B1/fr not_active Expired
- 1972-07-27 DE DE19722237413 patent/DE2237413A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2147264A1 (en) | 1973-03-09 |
| FR2147264B1 (en) | 1976-03-12 |
| DE2237413A1 (en) | 1973-02-08 |
| GB1340158A (en) | 1973-12-12 |