Patents for H01G 7 - Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture (2,230) |
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08/04/1988 | EP0222884A4 Combined integrated circuit/ferroelectric memory device and ion beam methods of constructing same. |
07/06/1988 | CN85100859B Three kinds of high polymer micropore membranes of electret and process of manufacture of them |
06/28/1988 | CA1238481A1 Method and apparatus for manufacturing an electret filter medium |
06/21/1988 | US4752856 Capacitive structure |
06/15/1988 | EP0271120A1 Method of providing a lead to an and of a capacitor and a capacitor manufactured according to this method |
06/07/1988 | US4749348 Apparatus for manufacturing an electret filter medium |
05/24/1988 | US4747013 Electrical capacitor with tearoff interrupter |
05/17/1988 | CA1236706A1 Pressure transducer |
05/11/1988 | CN86102535A Metal-aluminium oxide-silicon construction humidity sensor and its fabricating technology |
05/03/1988 | CA1235922A1 Pressure sensing cell using brittle diaphragm |
04/26/1988 | US4740863 Current-limiting thin film termination for capacitors |
04/20/1988 | EP0264240A2 Piezoelectric or pyroelectric vinylidene cynamide copolymer material |
04/05/1988 | US4735098 Dual diaphragm differential pressure transducer |
03/23/1988 | EP0260427A1 Impregnated layer component and method of making it |
03/15/1988 | US4731697 Arc resistant trimable ceramic capacitor |
01/26/1988 | US4721601 Molecule-based microelectronic devices |
01/20/1988 | EP0252929A1 Electrically variable piezoelectric hybrid capacitor. |
01/12/1988 | US4719539 Hermetically sealed capacitor |
01/05/1988 | US4717673 Thiophene polymer based transistor, capacitor and electrochromic device |
12/29/1987 | US4716331 Electrically variable piezoelectric hybrid capacitor |
12/15/1987 | US4713157 Using metal nitrates, nitrites and phosphates; sulfates |
12/01/1987 | US4710848 Determination of partial pressure of gas mixture |
11/24/1987 | US4707897 Monolithic semiconductor integrated circuit ferroelectric memory device, and methods of fabricating and utilizing same |
11/19/1987 | EP0245472A1 Dual diaphragm differential pressure transducer |
11/11/1987 | EP0245108A2 Process and apparatus for productionof a non-woven fiber sheet |
10/13/1987 | CA1228151A1 Piezoelectric coaxial cable having a helical inner conductor |
09/15/1987 | CA1226971A1 Method for producing electret-containing devices |
08/26/1987 | EP0233538A2 Electrical capacitor provided with a current interrupter |
08/12/1987 | EP0035536B1 Method of manufactoring adjustable thick film capacitors |
08/04/1987 | US4685027 High current capacitor and method for manufacturing the same |
08/04/1987 | US4684337 Device for polarizing ferroelectric materials |
08/04/1987 | US4684207 Ferroelectric ceramics; dielectrics in multi layer capacitors |
07/22/1987 | EP0229138A1 Langmuir blodgett films |
07/16/1987 | WO1987004301A1 Electrically variable piezoelectric hybrid capacitor |
06/30/1987 | US4675960 Method of manufacturing an electrically variable piezoelectric hybrid capacitor |
06/30/1987 | US4675959 Production of piezoelectric dielectric films by poling in stack form |
06/16/1987 | US4672895 Device for controlling the priming of a pyrotechnic device |
06/02/1987 | US4670816 Plastic film capacitor in chip constructional form |
05/27/1987 | EP0222884A1 Combined integrated circuit/ferroelectric memory device and ion beam methods of constructing same |
05/21/1987 | WO1987003088A1 Dual diaphragm differential pressure transducer |
04/07/1987 | US4656556 Plastic film capacitor in chip constructional form |
03/24/1987 | US4652282 Electretized material for a dust filter |
03/18/1987 | EP0214788A2 Hermetically sealed capacitor |
03/18/1987 | CN85100574A Method for manufacturing transducer electret back pole |
03/11/1987 | EP0213631A2 Solid electrolytic capacitor and process for preparation thereof |
03/11/1987 | CN86102516A Process for making polymer film electret |
03/03/1987 | US4648010 Solid electrolytic capacitor and process for preparation thereof |
02/10/1987 | CA1217733A Device and method to make at least one electrical connection between two points at either end of a pipe |
02/03/1987 | CA1217577A1 Electrets and the manufacture thereof |
01/28/1987 | CN85108622A Circuit for capacitive sensor make of brittle material |
01/20/1987 | CA1216970A1 Method and apparatus for the production of electret material |
01/15/1987 | WO1987000347A1 Langmuir blodgett films |
12/10/1986 | EP0204636A1 Strong current capacitor and process for making such a capacitor |
12/10/1986 | EP0128200B1 Method and apparatus for the production of electret materials |
12/02/1986 | US4626263 Blend of polar and nonpolar polymer with siland modified nonpolar polymer |
12/02/1986 | CA1214732A1 Lightweight current-carrying hose |
11/20/1986 | WO1986006752A1 Combined integrated circuit/ferroelectric memory device and ion beam methods of constructing same |
11/18/1986 | US4623438 High speed continuous processing |
11/04/1986 | US4621205 Method and apparatus for reducing varactor noise |
10/29/1986 | EP0199616A1 Checking device for the ignition of a pyrotechnic charge |
10/29/1986 | EP0198855A1 Circuit for capacitive sensor made of brittle material |
10/22/1986 | EP0198031A1 Pressure sensing cell using brittle diaphragm |
09/16/1986 | US4612145 Method for producing electret-containing devices |
09/09/1986 | US4611260 Method and device for polarizing ferroelectric materials |
09/03/1986 | EP0192818A1 Chip-type plastic foil wound capacitor |
08/27/1986 | EP0191914A1 Chip-type plastic foil wound capacitor |
08/26/1986 | US4608109 Stacking dielectrics, then concurrent pressing and heating |
08/19/1986 | CA1209950A1 Polarizing of piezoelectric material |
07/09/1986 | CN85100859A Three kinds of high polymer micropore membranes of electret and process of manufacture of them |
07/02/1986 | EP0185941A2 Polymer-based microelectronic pH-sensor |
06/11/1986 | EP0184439A2 Surface mountable electrical device and method of making the device |
06/05/1986 | EP0147432A4 Electrode for electrostatic transducer and methods of manufacture. |
06/03/1986 | USRE32171 Method for the manufacture of an electret fibrous filter |
06/03/1986 | US4592815 Method of manufacturing an electret filter |
05/28/1986 | EP0182512A2 Electret fiber sheet and method of producing same |
05/27/1986 | US4591465 Method of producing polymeric electret element |
05/13/1986 | US4588537 Method for manufacturing an electret filter medium |
05/06/1986 | CA1204077A1 Reverse field stabilization of polarized polymer films |
04/29/1986 | US4586108 Circuit for capacitive sensor made of brittle material |
04/24/1986 | WO1986002487A1 Circuit for capacitive sensor made of brittle material |
04/24/1986 | WO1986002486A1 Pressure sensing cell using brittle diaphragm |
04/22/1986 | US4584629 Method of making ceramic capacitor and resulting article |
04/10/1986 | CN85108071A Pressure sensing cell using brittle diaphragm |
04/01/1986 | US4580190 Surface mountable electrical package |
03/25/1986 | US4578737 Synthetic resin film wound capacitor |
03/25/1986 | US4578735 Pressure sensing cell using brittle diaphragm |
03/25/1986 | CA1202196A1 Capacitive humidity sensor and method for the manufacture of same |
03/19/1986 | EP0174837A2 Piezoelectric coaxial cable having a helical inner conductor |
02/04/1986 | US4568851 Piezoelectric coaxial cable having a helical inner conductor |
01/14/1986 | US4564882 Humidity sensing element |
01/02/1986 | EP0166629A1 Composite metal-polymer sheets and methods and devices for making them |
12/03/1985 | CA1197605A1 Method for manufacturing electret device |
11/06/1985 | EP0160497A2 High-performance electret and air filter |
10/23/1985 | EP0159147A1 Method for producing electret-containing devices |
10/10/1985 | WO1985004513A1 Method for producing electret-containing devices |
10/09/1985 | EP0157599A2 Pressure transducer |
10/01/1985 | CA1194448A1 Method of making fibrous electrets |
09/17/1985 | US4541904 Method of manufacturing a moisture sensor |
08/20/1985 | US4536820 Electrical feedthrough means for pressure transducer |
08/06/1985 | US4533794 Electrode for electrostatic transducer |