Patents
Patents for H01G 7 - Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture (2,230)
04/2005
04/28/2005US20050088799 Thin film capacitor, thin film capacitor array and electronic component
04/28/2005US20050088255 Electrically tunable filters with dielectric varactors
04/27/2005EP1135825B1 Ferroelectric varactor with built-in dc blocks
04/26/2005US6885544 Vertical capacitor apparatus, systems, and methods
04/26/2005US6885537 Capacitor apparatus of the capacity variable type
04/26/2005US6885341 Inverted-F ferroelectric antenna
04/26/2005US6885263 Tunable ferro-electric filter
04/21/2005US20050085200 Antenna interface unit
04/21/2005US20050085051 Tunable dielectric device and process relating thereto
04/21/2005US20050083234 Wireless device reconfigurable radiation desensitivity bracket systems and methods
04/20/2005CN1198295C Plate type electronic element and mfg. method thereof
04/14/2005WO2005020257A3 Organic capacitor having a voltage-controlled capacitance
04/07/2005US20050071970 Manufacturing method for electrodes that inhibit corona effect on ceramic capacitor
04/06/2005CN1196034C Application of improved green pigment in electronic photo toner and developer powdered coating and ink jet printing ink
03/2005
03/30/2005CN1601674A Film capacitor, film capacitor arry and electronic component
03/24/2005US20050063137 Vertical capacitor apparatus, systems, and methods
03/23/2005CN1598983A T-shaped beam parallel plate micromechanical variable capacitor and manufacturing process thereof
03/17/2005US20050057414 Reconfigurable radiation desensitivity bracket systems and methods
03/17/2005US20050057322 Apparatus and method for combining electrical signals
03/17/2005DE10338277A1 Organischer Kondensator mit spannungsgesteuerter Kapazität Organic capacitor having a voltage controlled capacitance
03/16/2005CN1596506A Circuit configuration for DC-biased capacitors
03/15/2005US6867744 Tunable horn antenna
03/08/2005US6865066 Voltage-controlled variable-capacitance device
03/03/2005WO2005020257A2 Organic capacitor having a voltage-controlled capacitance
03/03/2005US20050046536 Plated terminations
03/02/2005CN1191659C Tunable microwave devices
03/01/2005US6861985 Ferroelectric antenna and method for tuning same
02/2005
02/22/2005US6859104 Tunable power amplifier matching circuit
02/16/2005EP1506556A1 Electret transducer
02/02/2005CN1573336A Capacitance-type dynamic-quantity sensor and manufacturing method therefor
01/2005
01/26/2005CN1572007A Tunable capacitors using fluid dielectrics
01/25/2005US6845551 Multilayer; dielectric mica sheets; metal conductor; pressurized environment; hermetic sealing
01/20/2005WO2005005320A1 A ferroelectric ceramic compound, a ferroelectric ceramic single crystal, and preparation processes thereof
01/06/2005US20050000932 Multi-metal layer MEMS structure and process for making the same
12/2004
12/30/2004US20040264107 Tunable capacitors using fluid dielectrics
12/22/2004CN1181511C Voltage-variable capacitor with improved C-V linearity and its forming method
12/21/2004US6833820 Tunable monopole antenna
12/21/2004US6833687 Electromechanical power converter
12/16/2004US20040250393 High temperature and high voltage power electronics capacitor
12/15/2004EP1279179B1 Tunable electrical devices comprising cacu3 ti4o12
12/15/2004EP1263691B1 Ceramic mass, method for the production of a ceramic mass and use of a ceramic mass
12/09/2004US20040246648 Capacitance-type dynamic-quantity sensor and manufacturing method therefor
12/02/2004US20040241401 Capacitor having improved electrodes
12/01/2004CN1178447C Electret microphone
11/2004
11/30/2004US6825818 Tunable matching circuit
11/30/2004US6825090 Fluid dielectric variable capacitor
11/18/2004US20040229025 Voltage tunable photodefinable dielectric and method of manufacture therefore
11/16/2004US6819194 Tunable voltage-controlled temperature-compensated crystal oscillator
11/16/2004US6818092 Multi-layer electret having ultra-high charge stability and method of manufacturing thereof
11/11/2004US20040222925 Inverted-F ferroelectric antenna
11/09/2004US6816714 Antenna interface unit
11/04/2004US20040219426 Rechargeable battery
11/04/2004US20040218373 Plated terminations
10/2004
10/28/2004WO2004093145A2 Voltage tunable photodefinable dielectric and method of manufacture therefore
10/27/2004CN1540692A 镀覆接线端 Plated terminals
10/26/2004US6808551 Method of using fluorinated electrets
10/21/2004US20040207456 Circuit configuration for DC-biased capacitors
10/21/2004US20040207369 Electromechanical power converter
10/21/2004US20040207125 Method of making a respirator that has a fluorinated electret
10/13/2004EP1467178A2 Capacitance-sensing vibratory gyro and method for detecting change in capacitance
10/13/2004CN1537343A Tuning multiplexer
10/13/2004CN1536687A Radio element adopting microelectric mechine system manufacture techqique and its manufacture method
10/13/2004CN1171258C Stacked ceramic capacitor
10/07/2004US20040196617 Capacitance-sensing vibratory gyro and method for detecting change in capacitance
10/07/2004US20040196121 Band switchable filter
10/06/2004EP1303863A4 Photolithographically-patterned variable capacitor structures and method of making
09/2004
09/23/2004US20040184216 Voltage controlled variable capacitance device
09/22/2004EP1460658A1 Process for producing laminated ceramic capacitor
09/15/2004EP1093474B1 Fluorinated electret
09/09/2004US20040174220 Tunable power amplifier matching circuit
09/02/2004US20040169992 Variable capacitors, composite materials
09/01/2004EP1451927A2 Circuit configuration for dc-biased capacitors
09/01/2004EP1451835A2 Method of making an electret
08/2004
08/31/2004US6785117 Capacitive device
08/26/2004US20040164819 Variable capacitance circuit, variable capacitance thin film capacitor and radio frequency device
08/25/2004CN1524276A Tunable ferro-electric filter
08/24/2004US6781814 Capacitive pressure transducer
08/18/2004EP1446237A2 Manufacture having double sided features in a metal-containing web formed by etching
08/18/2004CN1522466A An improved method for forming minimally spaced mram structures
08/12/2004US20040155731 Low-loss tunable ferro-electric device and method of characterization
08/05/2004US20040150939 MEMS-based variable capacitor
08/05/2004US20040150493 Ferroelectric devices and method relating thereto
08/04/2004EP1443017A2 Multi-metal layer MEMS structure and process for making the same
08/04/2004EP1442464A1 Tunable capacitors using fluid dielectrics
08/04/2004EP1344233B1 Variable capacitance voltage-controllable by use of coulomb barrier phenomenon
07/2004
07/29/2004US20040145056 Multi-metal layer MEMS structure and process for making the same
07/20/2004US6765540 Tunable antenna matching circuit
07/15/2004US20040136140 Voltage-controlled variable-capacitance device
07/13/2004US6762141 Glass between two ceramic materials reduces the sintering temperature and prevents formation of a mixed crystal ltcc (low temperature cofired ceramic); capacitors
07/07/2004CN1511261A Low-loss tunable ferro-electric device and method of characterization
07/01/2004US20040127345 Dielectrics, a dielectric constant above 9000, heat resistance; phase shifters, matching networks, oscillators, filters, resonators, and antennas, capacitors, waveguides
07/01/2004US20040125536 Charge dissipation in electrostatically driven devices
06/2004
06/29/2004US6756947 Tunable slot antenna
06/24/2004WO2004038848A3 Mems capacitor for tuning of microstrip filters
06/23/2004CN1507639A Capacitor having improved electrodes
06/17/2004WO2003023796A3 Method of making an electret
06/17/2004US20040114306 Multi-layer capacitor and method for manufacturing the same
06/10/2004US20040107555 Method for making monolithic ceramic capacitor
06/09/2004CN1503454A Variable capacitor element and integrated circuit having variable capacitor element
06/01/2004US6744327 Tunable voltage controlled oscillator
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