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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:
1 2 3 4

Patent Number Title Of Patent Date Issued
8564172 Elastic wave element and electronic apparatus using same Oct. 22, 2013
8508101 Elastic boundary wave substrate and elastic boundary wave functional element using the substrate Aug. 13, 2013
8487720 Acoustic wave resonator and acoustic wave filter using the same Jul. 16, 2013
8471653 Elastic wave resonator and ladder filter Jun. 25, 2013
8390400 Acoustic wave element having an electrode finger with a protrusion Mar. 5, 2013
8322218 Surface acoustic wave element and equipment for measuring characteristics of liquid material Dec. 4, 2012
8294331 Acoustic wave guide device and method for minimizing trimming effects and piston mode instabilities Oct. 23, 2012
8289107 Acoustic wave device having narrower-pitch electrodes, normally-shaped electrodes and apodized electrodes Oct. 16, 2012
8247955 Electroacoustic component Aug. 21, 2012
8232852 Dual-track surface-wave filter Jul. 31, 2012
8222973 Elastic wave resonator, ladder filter and duplexer Jul. 17, 2012
8125301 Transversal type filter Feb. 28, 2012
8084915 Surface acoustic wave resonator having comb electrodes with different overlapping lengths Dec. 27, 2011
7978026 Transversal filter operating using surface acoustic waves Jul. 12, 2011
7939989 Piston mode acoustic wave device and method providing a high coupling factor May. 10, 2011
7915976 Surface acoustic wave resonator and ladder-type filter Mar. 29, 2011
7902716 Surface acoustic wave device and communication apparatus Mar. 8, 2011
7854050 Method of manufacturing a surface acoustic wave device Dec. 21, 2010
7830067 Elastic boundary wave device Nov. 9, 2010
7821179 Acoustic wave resonator Oct. 26, 2010
7728699 Acoustic wave filter Jun. 1, 2010
7649303 Acoustic wave resonator Jan. 19, 2010
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
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
7170372 Converter for surface waves with improved suppression of interfering excitation 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

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