NL7111677A - - Google Patents
Info
- Publication number
- NL7111677A NL7111677A NL7111677A NL7111677A NL7111677A NL 7111677 A NL7111677 A NL 7111677A NL 7111677 A NL7111677 A NL 7111677A NL 7111677 A NL7111677 A NL 7111677A NL 7111677 A NL7111677 A NL 7111677A
- Authority
- NL
- Netherlands
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Filtering Materials (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45074291A JPS5019360B1 (https=) | 1970-08-26 | 1970-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7111677A true NL7111677A (https=) | 1972-02-29 |
Family
ID=13542870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7111677A NL7111677A (https=) | 1970-08-26 | 1971-08-25 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3793715A (https=) |
| JP (1) | JPS5019360B1 (https=) |
| CA (1) | CA927016A (https=) |
| DE (1) | DE2142633A1 (https=) |
| FR (1) | FR2109713A5 (https=) |
| GB (1) | GB1349890A (https=) |
| NL (1) | NL7111677A (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872318A (en) * | 1971-04-08 | 1975-03-18 | Kureha Chemical Ind Co Ltd | Pyroelectric element of polymer film |
| FR2199430A5 (https=) * | 1972-09-08 | 1974-04-05 | Anvar | |
| US4055878A (en) * | 1976-09-24 | 1977-11-01 | Pennwalt Corporation | Stabilization of piezoelectric resin elements |
| DE3050408C2 (de) * | 1979-03-26 | 1985-06-13 | Daikin Kogyo Co., Ltd., Osaka | Piezoelektrisches, verstrecktes, polarisiertes Vinylidenfluorid-Trifluorethylen-Copolymer und Verfahren zu dessen Herstellung |
| US4459634A (en) * | 1982-10-22 | 1984-07-10 | Pennwalt Corporation | Reverse field stabilization of polarized polymer films |
| DE3333083C2 (de) * | 1983-09-14 | 1987-04-23 | Metev Gesellschaft für Entwicklung und Verwertung med. Bedarfs GmbH & Co KG, 4840 Rheda-Wiedenbrück | Verfahren zum Herstellen eines elektrisch permanent geladenen Schichtmaterials für therapeutische Behandlung |
| JPS60225416A (ja) * | 1984-04-24 | 1985-11-09 | 三井化学株式会社 | 高性能エレクトレツトおよびエアフイルタ− |
| US5019723A (en) * | 1987-12-07 | 1991-05-28 | Controlled Release Technologies, Inc. | Self-regulated therapeutic agent delivery system and method |
| CA2037942A1 (en) * | 1990-03-12 | 1991-09-13 | Satoshi Matsuura | Process for producing an electret, a film electret, and an electret filter |
| US6001299A (en) * | 1995-02-21 | 1999-12-14 | Japan Vilene Company, Ltd. | Process and apparatus for manufacturing an electret article |
| US6406657B1 (en) * | 1999-10-08 | 2002-06-18 | 3M Innovative Properties Company | Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2986524A (en) * | 1959-12-21 | 1961-05-30 | Edward D Padgett | Manufacture of electrets and article so produced |
| US3316620A (en) * | 1964-02-28 | 1967-05-02 | Philip Morris Inc | Process for the production of electrets |
-
1970
- 1970-08-26 JP JP45074291A patent/JPS5019360B1/ja active Pending
-
1971
- 1971-08-25 DE DE19712142633 patent/DE2142633A1/de active Pending
- 1971-08-25 NL NL7111677A patent/NL7111677A/xx not_active Application Discontinuation
- 1971-08-25 CA CA121490A patent/CA927016A/en not_active Expired
- 1971-08-26 FR FR7131071A patent/FR2109713A5/fr not_active Expired
- 1971-08-26 GB GB4016471A patent/GB1349890A/en not_active Expired
- 1971-08-26 US US00175307A patent/US3793715A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2109713A5 (https=) | 1972-05-26 |
| DE2142633A1 (de) | 1972-04-20 |
| GB1349890A (en) | 1974-04-10 |
| CA927016A (en) | 1973-05-22 |
| US3793715A (en) | 1974-02-26 |
| JPS5019360B1 (https=) | 1975-07-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |