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| Number | Title | Issue Date |
| 8188635 | Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic instrument A SAW resonator which, using a quartz crystal substrate with Euler angles (−1.5°≦φ≦1.5°, 117°≦θ≦142°, and 42.79°≦|105|≦49.57°, includes an IDT which excites a stop band upper end mode SAW, and grooves hollowed out of the substrate positioned be... | 05/29/2012 |
| 8018122 | Surface acoustic wave device, module device, oscillation circuit, and method for manufacturing surface acoustic wave device An SH wave type surface acoustic wave device includes a piezoelectric substrate and an IDT electrode provided on the piezoelectric substrate and constituted of Al or an alloy mainly containing Al and that uses a SH wave as an excitation wave. The piezoelectric subst... | 09/13/2011 |
| 8008838 | Lamb wave type elastic wave device Provided is a device of a high-frequency resonator using Lamb wave type elastic wave having excellent frequency temperature characteristics, the device having a significantly small frequency change, and including an interdigital transducer for generating at least on... | 08/30/2011 |
| 7999436 | Electroacoustic component An electroacoustic component that includes a substrate made of monocrystalline LiNbO3 is disclosed. In the component, a first Euler angle λ of the monocrystalline LiNbO3 is: λ≈0°, a second Euler angle μ of the monocrystalline LiNbO3 ... | 08/16/2011 |
| 7939988 | Acoustic wave device An acoustic wave device includes a piezoelectric substrate having a surface adapted to allow a leaky surface wave to propagate thereon, an interdigital electrode provided on a portion of the surface of the piezoelectric substrate, and a dielectric layer provided on ... | 05/10/2011 |
| 7923896 | Surface acoustic wave device A surface acoustic wave device including an SiO film has improved frequency temperature characteristics, prevents an increase in insertion loss, obtains a reflection coefficient of an electrode that is sufficiently high, and achieves more preferable resonant charact... | 04/12/2011 |
| 7915786 | Elastic boundary wave device An elastic boundary wave device of the present invention includes a plurality of elastic boundary wave elements. The elastic boundary wave elements each include a piezoelectric material layer, an electrode disposed over the piezoelectric material layer, a first diel... | 03/29/2011 |
| 7915784 | Surface acoustic wave resonator and surface acoustic wave device in which spurious responses that occur when a SiOprotective film is provided are suppressed A surface acoustic wave resonator includes a rotated Y-cut quartz substrate with a cut angle θ of about −53° to about −52° and an IDT electrode made of aluminum or an alloy primarily including aluminum provided on the quartz substrate. The propagation directi... | 03/29/2011 |
| 7902718 | Boundary acoustic wave device A boundary acoustic wave device includes a LiNbO3 substrate having a plurality of grooves provided in the upper surface thereof, electrode layers which are defined by a metal material filled in the grooves and which include IDT electrodes, and a dielectri... | 03/08/2011 |
| 7898145 | Boundary acoustic wave device A boundary acoustic wave device includes a piezoelectric substance made of LiNbO3 having a surface obtained by rotating a Y axis by about 15°±10° as a primary surface, a dielectric substance which is made of a silicon oxide and which is laminated to th... | 03/01/2011 |
| 7888841 | Boundary acoustic wave device A boundary acoustic wave device includes a LiNbO3 substrate having a plurality of grooves provided in the upper surface thereof, electrode layers which are defined by a metal material filled in the grooves and which include IDT electrodes, and a dielectri... | 02/15/2011 |
| 7863801 | Acoustic wave device An acoustic wave device includes a piezoelectric substrate, IDT electrodes, temperature characteristic-improving layer, and frequency-adjusting layer arranged on the piezoelectric substrate in that order. The piezoelectric substrate has a negative temperature coeffi... | 01/04/2011 |
| 7843112 | Surface acoustic wave device, module device, oscillation circuit, and method for manufacturing surface acoustic wave device An SH wave type surface acoustic wave device includes a piezoelectric substrate and an IDT electrode provided on the piezoelectric substrate and constituted of Al or an alloy mainly containing Al and that uses a SH wave as an excitation wave. The piezoelectric subst... | 11/30/2010 |
| 7772742 | Boundary acoustic wave device A boundary acoustic wave device includes a first medium, a second medium, a third medium, and a fourth medium that are laminated in that order and, an electrode including an IDT electrode disposed at an interface between the first medium and the second medium, the t... | 08/10/2010 |
| 7755250 | Measuring sensor with at least one SAW (surface acoustic wave) element A measuring sensor comprises at least one SAW (surface acoustic wave) element (20) serving as a sensor and identification unit, which is installed in a contactless manner inside a housing part (10) forming, in essence, a coaxial conductor. The housing ... | 07/13/2010 |
| 7705515 | Surface acoustic wave device A surface acoustic wave device utilizing a Rayleigh wave includes a LiNbO3 substrate having Euler angles of (0°±5°, θ±5°, 0°±10°), an electrode which is disposed on the LiNbO3 substrate and which includes an IDT electrode primarily inc... | 04/27/2010 |
| 7701114 | Surface acoustic wave device A surface acoustic wave device has a duty that is greater than about 0.5, attenuation outside the pass band is increased, and an undesirable spurious response is effectively suppressed. The surface acoustic wave device includes an LiNbO3 substrate having ... | 04/20/2010 |
| 7626314 | Surface acoustic wave device A surface acoustic wave device which uses a Rayleigh wave as a surface acoustic wave includes an IDT electrode provided on a piezoelectric substrate composed of quartz having Euler angles of (0°±5°, 0° to 140°, 0°±40°), a piezoelectric film composed of c-axi... | 12/01/2009 |
| 7615910 | High frequency surface acoustic wave device The present invention relates to a high frequency surface acoustic wave device, which may be manufactured by the same manufacturing equipment, and with the same material, as those required for manufacturing a low frequency surface acoustic wave device. The disclosed... | 11/10/2009 |
| 7602099 | Surface acoustic wave device and method of manufacturing the same First base layers made of TiN or TiOxNy (where, 0 | 10/13/2009 |
| 7569972 | Surface acoustic wave device A surface acoustic wave device utilizing a Rayleigh wave includes a LiNbO3 substrate having Euler angles of (0°±5°, θ±5°, 0°±10°), an electrode which is disposed on the LiNbO3 substrate and which includes an IDT electrode primarily inc... | 08/04/2009 |
| 7535152 | Lamb wave device A Lamb wave device includes a base substrate, a piezoelectric thin film which is provided on the base substrate and which has a floating portion floating above the base substrate, the floating portion having a first surface facing the base substrate and a second sur... | 05/19/2009 |
| 7528522 | Surface acoustic wave device, package for the device, and method of fabricating the device A surface acoustic wave device includes a package having a cavity, a SAW chip housed in the cavity, a resin sealing the cavity, and a metal thin film provided on the resin. ... | 05/05/2009 |
| 7489064 | Boundary acoustic wave device A boundary acoustic wave device includes a quartz substrate, an IDT located on the substrate, and a dielectric arranged so as to cover the IDT. A boundary acoustic wave propagates across a boundary between the quartz substrate and the dielectric. The thickness of th... | 02/10/2009 |
| 7474033 | Surface acoustic wave device, method of manufacturing the same, and electronic apparatus A surface acoustic wave device, comprising a lithium-tantalate substrate and an IDT electrode that excites a pseudo-longitudinal wave type leaky surface acoustic wave in the surface of the lithium-tantalate substrate, wherein a normalized substrate thickness t/λ, w... | 01/06/2009 |
| 7471027 | Elastic boundary wave device A boundary acoustic wave device includes a dielectric substance that is laminated on one surface of a piezoelectric substance, an IDT and reflectors used as electrodes are disposed at a boundary between the piezoelectric substance and the dielectric substance, and t... | 12/30/2008 |
| 7446453 | Surface acoustic wave devices using surface acoustic waves with strong piezoelectric coupling A SAW device includes a LiNbO3 single crystal piezoelectric substrate having an orientation defined by Euler angles (λ,μ,θ), with angle λ ranging from −5° to +5°, angle μ ranging from about −74° to about −65°, and angle θ ranging from −5... | 11/04/2008 |
| 7439648 | Surface acoustic wave device and manufacturing method therefor, and communications equipment A surface acoustic wave device configured by forming an oxide layer 2 on a piezoelectric substrate 1 composed of a lithium tantalate single crystal or a lithium niobate single crystal and having weak pyroelectric properties having a lower oxygen conten... | 10/21/2008 |
| 7425881 | Surface acoustic wave device and method that prevents restoration of a pyroelectric effect A surface acoustic wave device includes a piezoelectric substrate that does not restore the pyroelectric effect, and a method for manufacturing the same. A surface acoustic wave element housed in a package includes a piezoelectric substrate having a specific resista... | 09/16/2008 |
| 7423360 | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device A surface acoustic wave device includes a three-dimensional substrate having an annular curved surface enabling to propagate a surface acoustic wave, and an electro-acoustic transducing element, which excites and propagates the surface wave along the surface, and re... | 09/09/2008 |
| 7423365 | Surface acoustic wave device A surface acoustic wave device includes at least one interdigital transducer having electrodes of a double-layered structure in which an upper film and an underlying film are laminated. The upper film has a main component of Al and a first metal of Ti added to the m... | 09/09/2008 |
| 7408285 | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device A surface acoustic wave device includes a three-dimensional substrate having an annular curved surface enabling to propagate a surface acoustic wave, and an electro-acoustic transducing element, which excites and propagates the surface wave along the surface, and re... | 08/05/2008 |
| 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 |
| 7368847 | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device A surface acoustic wave device includes a three-dimensional substrate having an annular curved surface enabling to propagate a surface acoustic wave, and an electro-acoustic transducing element, which excites and propagates the surface wave along the surface, and re... | 05/06/2008 |
| 7368848 | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device A surface acoustic wave device includes a three-dimensional substrate having an annular curved surface enabling to propagate a surface acoustic wave, and an electro-acoustic transducing element, which excites and propagates the surface wave along the surface, and re... | 05/06/2008 |
| 7362034 | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device A surface acoustic wave device includes a three-dimensional substrate having an annular curved surface enabling to propagate a surface acoustic wave, and an electro-acoustic transducing element, which excites and propagates the surface wave along the surface, and re... | 04/22/2008 |
| 7355319 | Boundary acoustic wave device A dielectric substance is laminated on one surface of a piezoelectric substance, and an IDT and reflectors are disposed as electrodes at a boundary between the piezoelectric substance and the dielectric substance, and the thickness of the electrodes is determined so... | 04/08/2008 |
| 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 |
| 7352114 | Surface acoustic wave element, surface acoustic wave device, surface acoustic wave duplexer, and method of manufacturing surface acoustic wave element A surface acoustic wave element includes a thin film electrode composed of monocrystal aluminum disposed on a piezoelectric substrate. At least one metal of Cu, Ta, W, and Ti is segregated in the thin film electrode composed of monocrystal aluminum. In this surface ... | 04/01/2008 |
| 7345400 | Surface acoustic wave device In a surface acoustic wave device, electrode films constituting at least one IDT are disposed on a piezoelectric substrate, and an SiO2 film is arranged on the piezoelectric substrate so as to cover the electrode films. The film-thickness of the electrode... | 03/18/2008 |
