| Patent Number |
Title Of Patent |
Date Issued |
| 7437907 |
Sensor for detecting substance in liquid and apparatus for detecting substance in liquid using t |
October 21, 2008 |
| In a sensor for detecting a substance in liquid, recesses are provided in the upper surface of a base substrate. The recesses respectively accommodate SAW elements. A resin layer having openings is arranged such that the sensing portions at the upper surfaces of the SAW elements are |
| 7394180 |
Oscillator circuit including surface acoustic wave sensor and biosensor apparatus |
July 1, 2008 |
| A surface-acoustic-wave-sensor-included oscillator circuit does not cause separation of an electrode film due to application of a bias voltage and can reliably accurate operate even if liquid is adhered thereto. The surface-acoustic-wave-sensor-included oscillator circuit includes in |
| 7389673 |
Sensor for detecting analyte in liquid and device for detecting analyte in liquid using the same |
June 24, 2008 |
| A sensor for detecting an analyte in liquid includes a base substrate provided with openings and electrode lands on one surface thereof and SAW elements each provided with a sensing portion having at least one IDT electrode on one side. The SAW elements are mounted on the base substrate |
| 7009468 |
Surface acoustic wave device and electronic device using the same |
March 7, 2006 |
| A small, high-performance SAW device has a large electromechanical coupling coefficient and a small number of fingers constituting reflectors, and is constructed such that losses due to electric resistance of the fingers. In the SAW device having pluralities of first fingers and seco |
| 6865786 |
Method for manufacturing a surface acoustic wave device using a shear horizontal type surface ac |
March 15, 2005 |
| In a method of manufacturing a surface acoustic wave device using a Shear Horizontal type surface acoustic wave, at least one interdigital transducer (IDT) is made of a material having a larger mass-load effect than that of aluminum. The metallization ratio of the IDT and the normali |
| 6847154 |
Surface acoustic wave device and communication device |
January 25, 2005 |
| A Shear Horizontal-type end-surface-reflection-type surface acoustic wave device includes a piezoelectric substrate having end surfaces. The most appropriate positions of the end surfaces of the piezoelectric substrate are determined. Interdigital transducers are disposed on the main sur |
| 6725513 |
Method for manufacturing surface acoustic wave apparatus |
April 27, 2004 |
| A method for manufacturing a surface acoustic wave apparatus decreases a specific resistance of an electrode film by removing hydrogen occluded in the electrode film that is primarily composed of tantalum, so that the device properties are stabilized. An electrode film primarily composed |
| 6617752 |
Surface acoustic wave device and manufacturing method therefor |
September 9, 2003 |
| In a surface acoustic wave device using a Shear Horizontal type surface acoustic wave, at least one interdigital transducer (IDT) is made of a material having a larger mass-load effect than that of aluminum. The metallization ratio of the IDT and the normalization film thickness h/.l |
| 6437668 |
Surface acoustic wave resonator, surface acoustic wave device, and communication device using sh |
August 20, 2002 |
| A surface acoustic wave resonator includes a piezoelectric substrate and an interdigital transducer disposed on the piezoelectric substrate and made of a metal or an alloy having a higher specific weight than that of the piezoelectric material of the piezoelectric substrate so as to gene |
| 6369667 |
Surface acoustic wave device and communication device utilizing shear horizontal waves |
April 9, 2002 |
| A surface acoustic wave device includes a quartz substrate having Euler angles (0.degree., .theta., 90.degree..+-.5.degree.) in which .theta. is in a range of 119.degree..ltoreq..theta..ltoreq.140.degree., and an IDT for exciting an SH wave is formed on the quartz substrate by use of an |
| 6218763 |
Surface acoustic wave resonator, filter, duplexer and communication apparatus |
April 17, 2001 |
| A surface acoustic wave resonator includes a piezoelectric substrate and an interdigital transducer disposed thereon. The surface acoustic wave resonator operates using a shear horizontal wave, and the interdigital transducer includes an electrode film made of a metal containing W or Ta |
| 6185801 |
Method of manufacturing surface acoustic wave device |
February 13, 2001 |
| A method of manufacturing a surface acoustic wave device having a piezoelectric substrate and an interdigital transducer provided thereon, includes the steps of forming a coating layer made of inorganic material or organic material on the piezoelectric substrate so as to cover the in |
| 6154105 |
Surface acoustic wave device with specific electrode materials and quartz substrate euler angles |
November 28, 2000 |
| A surface acoustic wave device includes a quartz substrate having an angle .theta. of Euler angles (0, .theta., 90.degree.) that satisfies 122.degree..ltoreq..theta..ltoreq.131.degree.. An interdigital transducer made of an electrode material including at least one of Ta and W is dis |
| 6088462 |
Surface acoustic wave device |
July 11, 2000 |
| A surface acoustic wave device includes a quartz rotated Y-cut plate and at least one interdigital transducer disposed on the quartz rotated Y-cut plate. The quartz rotated Y-cut plate has a Euler angle represented by (0, .theta., .phi.). The angle .theta. is within a range of about |
| 5953433 |
Surface acoustic wave device |
September 14, 1999 |
| A surface acoustic wave device includes a quartz rotated Y-cut plate and at least one interdigital transducer disposed on the quartz rotated Y-cut plate. The quartz rotated Y-cut plate has a Euler angle represented by (0, .theta., .o slashed.). The angle .theta. is within a range of abou |
