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Match Document Document Title
8917152 Spin wave device  
A spin wave device according to an embodiment includes: an input interconnect transmitting an input impulse signal; a multilayer film including a foundation layer; a first magnetic layer formed on...
8164148 Method of generating strong spin waves and spin devices for ultra-high speed information processing using spin waves  
Provided are a method of generating strong spin waves, a method of simultaneously generating spin waves and electromagnetic waves, a logic operation device using spin waves, a variety of spin wave...
6667672 Compact high power analog electrically controlled phase shifter  
A high power ferrite microwave phase shifter that is both compact and low cost. The ferrite phase shifter includes a waveguide having a first cylinder and a second cylinder, the radius of the...
6426156 Magnetostatic wave device  
A magnetic garnet single crystal film used for a magnetostatic wave device has a Pb content in the range of from more than zero to about 4,000 ppm by weight.
6194091 Magnetostatic wave device  
A magnetostatic wave device comprises a magnetic garnet single crystal film. The single crystal film magnetic garnet is represented by the general formula of Y3 Fe5-x-y Inx My O12 (wherein M is at...
6121856 Bulk acoustic wave device with lamb wave mode selection  
A bulk acoustic wave delay line is disclosed having a thin, amorphous metal substrate, and deposited on the first and second surface at each end of which is a very thin layer of a piezoelectric...
6016088 Magnetostatic wave device  
A magnetostatic wave device comprises a Y3 Fe5 O12 -based magnetic garnet single crystal film, and the magnetic garnet single crystal film contains indium as a substitute for a part of iron, and...
5985472 Magnetostatic wave device  
There is provided a magnetostatic wave device which operates even with a substitution R, A:YIG having a small film thickness and which has a wider operational frequency band. A magnetostatic wave...
5828274 Clad ultrasonic waveguides with reduced trailing echoes  
Ultrasonic buffer rods are useful for on-line process control of industrial material processes at elevated temperatures. In order to increase the signal-to-noise ratio in the reflected ultrasonic...
5606297 Conical ultrasound waveguide  
A waveguide for projecting a longitudinal acoustic wave of wavelength λ from an ultrasound energy source toward a target area. The waveguide has at least one tubular channel. The channel has...
5601935 Surface magnetostatic wave device  
A surface magnetostatic wave device includes an Fe-containing garnet single crystal film grown on a gadolinium gallium garnet substrate. The crystallographic plane azimuth of the gadolinium...
5351219 Acoustic device  
An acoustic device has an acoustic wave propagating medium exhibiting elastic abnormality in the vicinity of a Curie temperature. It is desirable that such an acoustic wave propagating medium be...
5241287 Acoustic waveguides having a varying velocity distribution with reduced trailing echoes  
Acoustic buffer rods are useful in the nondestructive ultrasonic evaluation of materials. In order to reduce the occurrence of spurious signals in the reflected acoustic waves forming an acoustic...
5142254 Ultrasonic delay line device with an adjusting circuit for adjusting delay time, a comb-shaped filter using the ultrasonic delay line device and a method of adjusting delay time  
An ultrasonic delay line device has an adjusting circuit for adjusting delay time provided between two terminals at the power input side of an ultrasonic delay line, wherein the adjusting circuit...
5122766 Acoustic wave delay system with an optically controlled delay medium  
A delay device for a frequency signal comprises an element made of acousto-optical material, provided with a first piezo-electric transducer transmitting an acoustic signal in the element and with...
5056137 Method and apparatus for encoding and decoding signals  
In a method and apparatus for encoding signals, signals are passed through a body of a material that modifies a characteristic of signals passing therethrough, such as an acousto-electromagnetic....
4912478 Signal time delay magnetostatic spin wave device for phased array antennas  
A phased array radar antenna utilizing signal time delay magnetostatic spin wave devices operable to provide feed line transmit time control for variable length transmission feed lines. The...
4743870 Longitudinal mode fiber acoustic waveguide with solid core and solid cladding  
An elastic waveguide, for propagating acoustic waves, consists of an elongated solid core region and an elongated solid outer cladding region. The acoustic waves propagate in a mode where the...
4742318 Birefringent single-mode acoustic fiber  
A birefringent single-mode acoustic fiber for propagating linearly polarized shear acoustic waves while preserving linear polarization, comprises an elongated core region of a solid material in...
4691178 Ultrasonic delay line  
An ultrasonic delay line including an input transducer for producing a sound wave depending on an input voltage, a delay medium for transmitting the sound wave produced by the input transducer and...
4675682 Magnetostatic delay line with improved delay linearity  
An arrangement for improving the frequency plane delay linearity of a frequency dispersive delay line of the type employing ferrite film materials such as yttrium iron garnet. Linearity...
4614919 Magnetostatic wave frequency analyzer apparatus  
A magnetostatic wave frequency analyzer apparatus utilizing forward volume waves. A single input transducer is arranged opposite a plurality of output transducers to receive the different...
4614923 Method of suppressing magnetostatic waves in magnetic garnet films for microwave circuit applications  
Method for the controlled suppression of magnetostatic waves within magnetic garnet films for microwave circuit applications, based upon the adoption of multilayer structures of epitaxial garnet...
4609890 Bulk acoustic wave signal processing devices  
An acoustic wave signal processing device which in a preferred embodiment utilizes at least one holographic grating formed within a portion of the interior of a substrate which is capable of...
4571562 Tunable selective devices based for magnetostatic volume waves  
The invention relates to tunable selective devices based on magnetostatic volume waves and has as its object to provide a device comprising two resonator networks arranged to exchange...
4554519 Magnetostatic wave delay line  
A magnetostatic wave device operating within a biasing magnetic field for delaying microwave signals is described including a layer of YIG material having a predetermined thickness, first and...
4539501 Epitaxial structure with increased piezoelectric effect and a surface acoustic wave electronic device comprising such a structure  
An epitaxial structure in which a constraint imposed by forced epitaxy causes an increase in the piezoelectric effect of a group of layers. The structure which provides this effect utilizes a...
4488127 Bifurcated electro-acoustic delay lines having transducers bonded at an area of bifurcation  
A bifurcated electroacoustic delay line exhibits at least a pair of substantially identical branches, each assuming a generally pentagonal profile. Each branch is configured to provide (2n+3)...
4477783 Transducer device  
The disclosure is directed to an ultrasonic transducer device that includes a plurality of layers of piezoelectric material. A plurality of conductive electrodes are disposed on the layers of...
4472692 Tunable selective device using magnetostatic bulk waves  
Tunable selective devices utilizing forward magnetostatic bulk waves. A filter is able to act as an oscillator loop or as a passive transmission system in which two resonant cavities including...
4419637 Magnetostatic wave dioptric device  
A magnetostatic wave device in which waves propagate in a layer of magnetic material grown on a non-magnetic crystalline substrate with a grating arranged in the wave path for modifying...
4400669 Magnetostatic wave delay line having improved group delay linearity  
The linearity of group delay versus frequency in magnetostatic wave delay lines is improved by a linear variation of one of three discrete parameters in the region between the two delay line...
4395686 Attenuation of higher order width modes in magnetostatic wave devices  
A magnetostatic wave device is described incorporating a plurality of resistive strips spaced apart from one another and transverse to the propagation path of magnetostatic waves in a material...
4349794 Shallow bulk acoustic wave devices  
Acoustic wave devices employing shallow bulk acoustic waves rather than surface acoustic waves, to provide higher frequencies of operation and other significant advantages, such as less...
4328472 Acoustic guided wave devices  
An acoustic guided wave device has a wave guiding volume (20) which may include transducer elements (22-25) and other metal elements (26), sandwiched between two acoustic half spaces (10, 12)...
4290033 Shallow bulk acoustic wave devices employing energy trapping  
Energy trapping elements for use with shallow bulk acoustic wave devices of various kinds, to minimize the insertion loses in such devices due to spreading of electroacoustic energy into the...
4264882 Electric signal transmission device employing a ferromagnetic amorphous ribbon  
An electric signal transmission transducer employing a ferromagnetic amorphous ribbon and especially an electric signal transmission element and system and an electroacoustic signal conversion...
4259649 Electroacoustic delay line apparatus  
An electroacoustic apparatus is disclosed for providing beam steered and focused compressional or shear waves, using an interdigital generating grid operative with one surface of a piezoelectric...
4204178 Acoustic wave devices  
An acoustic surface wave device employs a substrate structurally orientated to enhance the propagation of acoustic surface skimming bulk waves. Multiple reflections from opposed end faces of the...
4165498 Variable delay device  
A variable delay device for delaying an electrical signal includes a bar-shaped magnetostrictive member to be a transmitting path of a supersonic wave, an input transducer for converting an...
4123731 Glass for use in ultrasonic delay lines  
A glass suitable for use in ultrasonic delay lines which comprises the components by weight, SiO2 42 to 27%, PbO 71 to 52% and preferably contains K2 O and/or Na2 O. The glass further contains...
4112396 Echo annexation device  
The present invention is related to devices for annexing an echo resembling natural reverberation in the course of sound recording, in which a line or lines of coil spring with a portion or...
4077023 Elastic waveguide  
Elastic waves are propagated in a waveguide comprising an elongate central core region and an outer cladding region, the cladding region having a larger bulk shear elastic wave velocity than the...
RE29557 Tl3 PSe4 Compound, single crystals, and acousto-optical devices  
The compound Tl3 PSe4 is disclosed. Non-conducting single crystals of the compound are prepared which have outstanding acousto-optical properties including an exceptionally high acousto-optical...
3961289 Ultrasonic delay material  
A spinel-type oxide exhibiting a cooperative Jahn-Teller effect shows an extraordinary reduction of sound velocity therethrough at temperatures near the Jahn-Teller phase transition temperature...
3956718 Crystals having zero temperature coefficients of delay  
Crystals or Tl3 VS4, Tl3 VSe4, Tl3 NbS4, Tl3 NbSe4, Tl3 TaS4, and Tl3 TaSe4 are disclosed which have a surface containing of normal to a zero temperature coefficient of delay direction. The...
3946256 System for generating or sensing transverse elastic bulk waves in solids  
A device for generating or sensing transverse elastic bulk waves in solids includes a piezoelectric material engaging a surface of the solid and having a two-fold axis or equivalent symmetry...
3895324 Apparatus for processing electromagnetic wave energy  
A device for processing electromagnetic wave energy by converting the wave energy to spin waves and/or elastic waves, the present disclosure being particularly directed to the concept of providing...
3869683 Variable broadband delay line  
A broadband magnetic bubble delay device having an adjustable delay time. A latelet or film of uniaxial magnetic material which has been appropriately saturated with a two dimensional array of...
3838365 ACOUSTIC DEVICES USING AMORPHOUS METAL ALLOYS  
Amorphous metal alloys are employed in acoustic devices dependent upon the properties of low acoustic velocity and low attenuation. Such devices include wire, strip and bulk delay lines.

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