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