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Class Information
Number: 310/313C
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > Surface acoustic wave devices > Interdigitated electrodes > Envelope or apodized
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7619347 |
Layer acoustic wave device and method of making the same |
Nov. 17, 2009 |
| 7532090 |
Acoustic wave filter device and duplexer |
May. 12, 2009 |
| 7522021 |
Surface acoustic wave apparatus |
Apr. 21, 2009 |
| 7518471 |
Surface acoustic wave filter utilizing a floating electrode |
Apr. 14, 2009 |
| 7501916 |
Elastic wave device having an electrode finger with a side edge projection |
Mar. 10, 2009 |
| 7489213 |
Surface acoustic wave transducer |
Feb. 10, 2009 |
| 7482896 |
Surface acoustic wave apparatus |
Jan. 27, 2009 |
| 7453333 |
Surface acoustic wave apparatus and communications equipment |
Nov. 18, 2008 |
| 7448119 |
Method of producing a surface acoustic wave device |
Nov. 11, 2008 |
| 7449813 |
Interleaved interdigitated transducers |
Nov. 11, 2008 |
| 7436273 |
Surface acoustic wave device and method for manufacturing the same |
Oct. 14, 2008 |
| 7324096 |
Touch panel device |
Jan. 29, 2008 |
| 7271685 |
Surface acoustic wave filter |
Sep. 18, 2007 |
| 7230612 |
Touch panel device |
Jun. 12, 2007 |
| 7221074 |
Surface acoustic device |
May. 22, 2007 |
| 7170372 |
Converter for surface waves with improved suppression of interfering excitation |
Jan. 30, 2007 |
| 7170213 |
Surface acoustic wave element, electric signal processing apparatus using the surface acoustic wave element, environment evaluating apparatus using the electric signal processing apparatus, an |
Jan. 30, 2007 |
| 7154360 |
Filter using piezoelectric material |
Dec. 26, 2006 |
| 7061346 |
Transversal filter comprising an improved notch characteristic curve |
Jun. 13, 2006 |
| 7034435 |
Saw device |
Apr. 25, 2006 |
| 7030539 |
Surface acoustic wave device and electronic component comprising it |
Apr. 18, 2006 |
| 7002282 |
Surface acoustic wave device and method of fabricating the same |
Feb. 21, 2006 |
| 6998760 |
Surface acoustic wave device and communication device |
Feb. 14, 2006 |
| 6967427 |
Surface acoustic wave device and communication apparatus incorporating the same |
Nov. 22, 2005 |
| 6960866 |
Surface acoustic wave device |
Nov. 1, 2005 |
| 6853113 |
Interdigital transducer with distibuted excitation |
Feb. 8, 2005 |
| 6819246 |
Method and apparatus for converting electromagnetic energy of objects |
Nov. 16, 2004 |
| 6815868 |
Surface acoustic wave apparatus and communication unit |
Nov. 9, 2004 |
| 6791236 |
Method utilizing the saw velocity dispersion effect for weighting by shaping the electrode fingers of a saw interdigital transducer and apparatus produced thereby |
Sep. 14, 2004 |
| 6774536 |
Surface acoustic wave device |
Aug. 10, 2004 |
| 6734600 |
Component for forming vertically standing waves of a wavelength |
May. 11, 2004 |
| 6720847 |
Longitudinally-coupled resonator surface acoustic wave filter and communication apparatus using the same |
Apr. 13, 2004 |
| 6710514 |
Surface acoustic wave device |
Mar. 23, 2004 |
| 6667673 |
Dual-mode surface wave filter with enhanced symmetry and optionally enhanced stop-band attenuation |
Dec. 23, 2003 |
| 6664871 |
Cascaded surface acoustic wave filter system for cancelling time spurious responses |
Dec. 16, 2003 |
| 6577041 |
Converter for surface acoustic waves |
Jun. 10, 2003 |
| 6552632 |
Surface acoustic wave resonator with withdrawn electrodes and surface acoustic wave ladder filter using same |
Apr. 22, 2003 |
| 6541893 |
Programmable surface acoustic wave (SAW) filter |
Apr. 1, 2003 |
| 6522219 |
Surface acoustic wave ladder filter with two series resonators having different apodization weighting |
Feb. 18, 2003 |
| 6504453 |
Transversal surface acoustic wave filter |
Jan. 7, 2003 |
| 6455979 |
Surface acoustic wave component which can be interrogated by radio and has an optimum code size |
Sep. 24, 2002 |
| 6353372 |
Dual-mode surface acoustic wave filter with split input/output converters determining impedance |
Mar. 5, 2002 |
| 6342824 |
Transverse-mode resonator filter with the input and output converters having different impedances |
Jan. 29, 2002 |
| 6335667 |
Multi-longitudinal mode coupled saw filter |
Jan. 1, 2002 |
| 6246150 |
Surface acoustic wave device |
Jun. 12, 2001 |
| 6127904 |
Surface acoustic wave filter having unidirectional and bidirectional transducers |
Oct. 3, 2000 |
| 6025763 |
Resonator-type surface-acoustic-wave ladder filter with improved upper stopband attenuation and reduced insertion loss |
Feb. 15, 2000 |
| 5986524 |
Surface acoustic wave resonator filter with a weighted asymmetrical interdigital electrode |
Nov. 16, 1999 |
| 5977846 |
Unidirectional surface acoustic wave filter |
Nov. 2, 1999 |
| 5949307 |
Surface acoustic wave device having two resonators with partially overlapping transducers |
Sep. 7, 1999 |
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