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| Number | Title | Issue Date |
| 8134278 | Surface acoustic wave device and surface acoustic wave biosensor A surface acoustic wave device, including: a piezoelectric substrate; an interdigitated transducer electrode disposed on the substrate; an oxide film disposed on surface of the interdigitated transducer electrode; and a hydrophobic film disposed on a surface of the ... | 03/13/2012 |
| 7915785 | Reflective and slanted array channelized sensor arrays Reflective and slanted array channelized sensor arrays having a broadband source providing acoustic energy to a reflective or slanted array that reflects a portion of the incident signal to one or more sensing films wherein the response is measured. ... | 03/29/2011 |
| 7902716 | Surface acoustic wave device and communication apparatus To provide a surface elastic wave apparatus that suppresses occurrence of fine ripples within a pass band, improves insertion loss and enhances the degree of balance. First and second surface acoustic wave elements (14, 15) that are parallel-connected to a su... | 03/08/2011 |
| 7816837 | Surface acoustic wave sensor A surface acoustic wave sensor for detecting a target substance by measuring the change in frequency due to the mass applied to a reaction membrane placed on a surface acoustic wave element having high sensitivity due to the improvement of the surface acoustic wave ... | 10/19/2010 |
| 7800281 | Acoustic wave filters using photo-definable epoxy for suppression of unwanted acoustic energy A SAW filter comprising an input transducer and an output transducer fabricated on a piezoelectric substrate and an epoxy based photo-definable acoustic absorber on the substrate for suppressing unwanted acoustic waves. The photo-definable acoustic absorber has a vi... | 09/21/2010 |
| 7633206 | Reflective and slanted array channelized sensor arrays Reflective and slanted array channelized sensor arrays having a broadband source providing acoustic energy to a reflective or slanted array that reflects a portion of the incident signal to one or more sensing films wherein the response is measured. ... | 12/15/2009 |
| 7569971 | Compensation of resonators for substrate and transducer asymmetry An in-line SAW resonator employs an asymmetric adjustment of the Bragg frequencies of the left outer reflector and right outer reflector where the degree of periodicity shift and the relative direction of the frequency shift are calculated to move the peaks of the a... | 08/04/2009 |
| 7535151 | Single phase unidirectional surface acoustic wave transducer and improved reflectors A unidirectional transducer for a surface acoustic wave (SAW) device. In one embodiment the device includes (1) a defined area on a piezoelectric substrate within which is located an open circuit reflector perpendicular to the SAW direction of propagation; and a pai... | 05/19/2009 |
| 7521837 | Saw architecture with series connected interdigitated transducers The present invention provides a surface acoustic wave (SAW) architecture wherein two acoustic reflectors are formed on a piezoelectric substrate to define an acoustic cavity between the acoustic reflectors. At least one alpha interdigitated transducer (IDT) may be ... | 04/21/2009 |
| 7474034 | Surface acoustic wave element and surface acoustic wave device using the same A surface acoustic wave element includes a piezoelectric substrate, an IDT composed of a pair of first and second comb-like electrodes, formed around a center of the piezoelectric substrate, and formed on a surface of the surface acoustic wave element, and a pair of... | 01/06/2009 |
| 7449813 | Interleaved interdigitated transducers The present invention provides an interleaved IDT that is connected to and overlaps adjacent IDTs. In particular, the interleaved IDT may be connected to both an input IDT and an output IDT via corresponding bus bars. The first bus bar of the interleaved IDT is conn... | 11/11/2008 |
| 7439827 | Surface acoustic wave filter device A longitudinally-coupled-resonator surface acoustic wave filter device has a sufficient pass-band width, in which a large attenuation in a stop band near the low-frequency side of a pass band and sharp filter characteristics, and low insertion loss in the pass band ... | 10/21/2008 |
| 7437907 | Sensor for detecting substance in liquid and apparatus for detecting substance in liquid using the same 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... | 10/21/2008 |
| 7436273 | Surface acoustic wave device and method for manufacturing the same A SAW chip (11) where ones are balanced signal terminals and the others are unbalanced signal terminals is mounted on a mounting board (12) in a flip chip manner, and the mounting board (12) and a surface of the SAW chip are covered with resin (... | 10/14/2008 |
| 7425878 | Surface acoustic wave filter and duplexer using the same A multimode type SAW filter includes a piezoelectric substrate, and IDT groups formed on the piezoelectric substrate, the IDT groups each having multiple IDTs connected in series in which an input/output electrode and a ground electrode are coupled via a floating co... | 09/16/2008 |
| 7411473 | Elastic boundary wave device An elastic boundary wave device includes an IDT including laminated conductor layers disposed between a first medium and a second medium, wherein a plane that divides the IDT in half in the thickness direction defines an interface, the energy of an elastic boundary ... | 08/12/2008 |
| 7411291 | Component with sensitive component structures and method for the production thereof An electrical component has electrically conducting structures placed on an electrically isolating or semiconductive substrate and component structures sensitive to a voltage or an electrical arcing and galvanically separated from one another. To prevent an arcing b... | 08/12/2008 |
| 7408284 | Center chirping within series connected interdigitated transducers A SAW architecture is provided with two acoustic reflectors formed on a piezoelectric substrate defining an acoustic cavity between the acoustic reflectors. At least one alpha IDT may be provided, and at least three beta IDTs are provided. These IDTs are placed in a... | 08/05/2008 |
| 7389673 | Sensor for detecting analyte in liquid and device for detecting analyte in liquid using the same 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 ... | 06/24/2008 |
| 7385468 | Surface acoustic wave filter Surface acoustic wave (SAW) filter includes SAW resonators, a discharge induction pattern is provided between a ground and at least one of a signal input terminal and a signal output terminal, and the discharge induction pattern has multiple gaps that are narrower t... | 06/10/2008 |
| 7382217 | Surface acoustic wave device A surface acoustic wave device is provided. The surface acoustic wave device includes a piezoelectric substrate and an IDT which is disposed on the piezoelectric substrate and made of Al or an alloy containing Al as a main component and using an SH wave as an excita... | 06/03/2008 |
| 7362033 | Surface-acoustic-wave device A surface-acoustic-wave device includes a piezoelectric substrate and first and second comb-shaped electrodes each having a bus-bar portion parallel to a propagation direction of a surface acoustic wave in the substrate. Respective electrode fingers are periodically... | 04/22/2008 |
| 7353695 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 04/08/2008 |
| 7351592 | Microfluidic device and method with trapping of sample in cavities having lids that can be opened or closed Method and arrangement (10, 20) for preparing samples (15, 27) submergible in a liquid medium. The arrangement includes a carrier structure (11). The carrier includes a device (13, 23) for controllable generation of a magnetic field throu... | 04/01/2008 |
| 7352104 | Surface acoustic wave element, method of manufacturing the same and surface acoustic wave device A surface acoustic wave element is provided including an IDT and reflectors provided on both sides of the IDT that are on a surface of a quartz plate. The quartz plate is made from an in-plane rotated ST cut quartz plate whose cutting angle is expressed as (0°, 113... | 04/01/2008 |
| 7350416 | Method for determining properties of a film, and apparatus for realizing the method A method for determining properties or a thin film includes the steps of: providing a piezoelectric substrate; providing a slanted finger interdigital transducer unit that includes a transmitter port and a receiver port on the piezoelectric substrate; forming the th... | 04/01/2008 |
| 7336016 | Surface-acoustic wave device and method of manufacturing same A new surface acoustic wave device in which higher frequency can be achieved and that shows enhanced temperature characteristics, is provided in a surface acoustic wave device utilizing an SH type high speed surface wave, when an IDT electrode is formed on a quartz ... | 02/26/2008 |
| 7327068 | Sensors and related devices and methods Sensors that include SAW devices, related methods, and related devices. Many embodiments are included. Some of the present sensors include an inlet structure; a mounting structure that is spaced apart from the inlet structure, the mounting structure having a top sur... | 02/05/2008 |
| 7322243 | Acoustic wave etch rate sensor system An acoustic wave sensor system for monitoring the etch rate or etch ability of a selective material has an acoustic wave sensing device having a piezoelectric substrate and at least one electrode coupled to the substrate for generating a propagating acoustic wave an... | 01/29/2008 |
| 7321279 | Surface acoustic wave element A surface acoustic wave element includes a pair of interdigital transducers arranged in parallel with a propagation direction of a surface acoustic wave; a reflector prepared at both sides of the interdigital transducers; and a coupling portion, which mutually coupl... | 01/22/2008 |
| 7295089 | Surface acoustic wave filter and communication apparatus A surface acoustic wave (SAW) filter includes a piezoelectric substrate. A resin pattern having a permittivity less than that of the piezoelectric substrate and first and second conductor patterns are disposed on the piezoelectric substrate. The first conductor patt... | 11/13/2007 |
| 7293705 | Radio frequency identification method and system of distributing products A method and system for vending products from a defined area, such as a micro-warehouse with a door. The method includes fitting each product with a radio frequency identification tag, positioning the plurality of products in a micro-warehouse, sensing opening and c... | 11/13/2007 |
| 7293450 | Oil quality sensor structure for permanent applications An oil quality sensor system comprise an acoustic wave viscosity and an etch rate sensor. The etch rate sensor system includes a piezoelectric substrate and one or more sensing layers configured upon the piezoelectric substrate. A layer of gold is generally configur... | 11/13/2007 |
| 7291904 | Downsized package for electric wave device A package substrate includes signal pads provided on a main surface of the package substrate, footpads provided on a backside of the package substrate, and a sealing electrode provided on the main surface to surround the signal pads, the signal pads being electrical... | 11/06/2007 |
| 7292122 | Surface acoustic wave filter and wireless device that employs the same A surface acoustic wave (SAW) filter includes a piezoelectric substrate, a first interdigital transducer (IDT) for input and a second IDT for output that are provided on the piezoelectric substrate, the first IDT and the second IDT being arranged in a propagation di... | 11/06/2007 |
| 7291547 | Filter device and method for fabricating filter devices A filter device and a method for fabricating filter devices can package filters, especially acoustic wave filters, by bonding a carrier (substrate) wafer carrying manufactured filters to another wafer referred to as a capping wafer. A capping wafer/substrate elimina... | 11/06/2007 |
| 7287431 | Wireless oil filter sensor A wireless oil filter sensing system includes an oil filter and a sensing mechanism that is connectable to the oil filter. The sensing mechanism includes one or more acoustic wave sensing elements and at least one antenna that communicate with the acoustic wave sens... | 10/30/2007 |
| 7285894 | Surface acoustic wave devices for high temperature applications A Surface Acoustic Wave device including a resonator or a delay line formed from an electrically conductive material having a high melting temperature disposed upon the surface of a substrate formed from one of the LGX family of crystals or gallium phosphate. The Su... | 10/23/2007 |
| 7274270 | Resonator matching network An input-matching network including an acoustic resonator providing a virtual impedance to match impedance between a first component and second component. As an example, the first component may be an antenna and the second component may be an amplifier. The acoustic... | 09/25/2007 |
| 7267009 | Multiple-mode acoustic wave sensor A multiple-mode acoustic wave sensor apparatus includes an acoustic wave device comprising a piezoelectric substrate and at least one electrode on the substrate. When such sensor is used in a wireless configuration, a plurality of antennas can be configured on the s... | 09/11/2007 |
