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Piezoelectric

Piezoelectric-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Stereo earphone
Finewell Co., Ltd.
December 07, 2017 - N°20170353797

There is provided is a stereo headphone provided with a pair of earphones having a cartilage conduction unit, a sheath unit connected to the cartilage conduction unit, and a piezoelectric bimorph of a vibration source connected to the cartilage conduction unit covered by the sheath unit without making contact with the inner wall thereof. The cartilage conduction unit is an ...
Behavior management system, behavior management method, and information processing apparatus
Finewell Co., Ltd.
December 07, 2017 - N°20170353763

A behavior management system includes one detection apparatus including at least one piezoelectric element diposed at a place where the piezoelectric element receives an effect of an action of a person, and circuitry. The circuitry detects a voltage output from the piezoelectric element when the piezoelectric element is applied with force caused by the action of the person, determines a ...
Filter devices having reduced spurious emissions from lamb waves
Skyworks Filter Solutions Japan Co., Ltd.
December 07, 2017 - N°20170353174

A filter device that reduces spurious emissions generated in a frequency band 1. 2 to 1. 4 times greater than a center frequency of a passband of a filter. In one example the filter device includes a first filter connected between a common contact and a first signal contact and having a first passband, and a second filter connected between the common contact and ...
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Fabrication and harvest of piezoelectric plates
Sharp Laboratories Of America, Inc.
December 07, 2017 - N°20170352799

A method is provided for fabricating piezoelectric plates. A sacrificial layer is formed overlying a growth substrate. A template layer, with openings exposing sacrificial layer surfaces, is formed over the sacrificial layer. An adhesion layer/first electrode stack is selectively deposited in the openings overlying the sacrificial layer surfaces, and a piezoelectric material formed in the openings overlying the stack. ...
Fluidic assembly process using piezoelectric plates
Sharp Laboratories Of America, Inc.
December 07, 2017 - N°20170352797

A method is provided for fabricating a thin-film electronic device employing a piezoelectric plate. The method provides a plurality of piezoelectric plates, and a substrate with electronic devices, each electronic device including a top surface well. A piezoelectric plate suspension is formed and flowed over the substrate. In response to the piezoelectric plate suspension flow, piezoelectric plates are captured in ...
Piezoelectric Patent Pack
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Piezoelectric Patent Applications
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For professional research & prior art discovery
inventor
  • 1064+ full patent PDF documents of Piezoelectric-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Pressure transducer and method for fabricating the same
Schlumberger Technology Corporation
December 07, 2017 - N°20170350780

A pressure transducer comprises a housing including a body section and at least one end cap at one end of the body section, which are made of piezoelectric crystal, and a piezoelectric resonator in the housing. The body section and the end cap are bonded by an atomic diffusion bonding method.
Micromachined bulk acoustic wave resonator pressure sensor
Mks Instruments, Inc.
December 07, 2017 - N°20170350779

A pressure sensor includes a piezoelectric substrate having a generally planar structure and an anchor location fixing the piezoelectric substrate at the periphery of the planar structure of the piezoelectric substrate. The planar structure of the piezoelectric substrate has a first region having a first characteristic thickness adjacent to the anchor location, and a second region have a second characteristic ...
Surface acoustic wave device
Citizen Watch Co., Ltd.
December 07, 2017 - N°20170350769

Provided is a surface acoustic wave device using a novel and steadily suppliable piezoelectric material that is resistant to a high-temperature environment and enables the surface acoustic wave device to use a 2 ghz to 2. 5 ghz band or higher. The surface acoustic wave device includes: a piezoelectric substrate formed from a monocrystal of gehlenite (cas: ca2al(alsi)o7); and interdigital ...
Gyroscope with piezoelectric monocrystal transducers
Innalabs Limited
December 07, 2017 - N°20170350700

A gyroscope comprising a resonant structure and a plurality of transducers configured to drive a vibrational mode in the resonant structure and detect vibrations of the resonant structure, wherein at least one of the plurality of transducers comprises a piezoelectric mono crystal.
Integrated multiple parameter sensing system and method for leak detection
Halliburton Energy Services, Inc.
December 07, 2017 - N°20170350234

A multiple parameter sensing leak detection system may include one or more multi-parameter sensing modules capable of simultaneously measuring downhole temperature, pressure, and acoustic signals. The temperature and pressure detectors may include quartz based sensing elements, and the acoustic detector may include piezoelectric based sensing elements. In one or more embodiments, a plurality of sensing modules may be carried on ...
Bulk acoustic resonator devices and processes for fabricating bulk acoustic resonator devices
Avago Technologies General Ip (singapore) Pte. Ltd.
November 30, 2017 - N°20170346462

In a bulk acoustic resonator device, at least one additional metal feature is formed on a top surface of the bottom electrode at a location at which the bottom electrode electrical contact will subsequently be formed, thereby thickening the metal at the location below where the piezoelectric material layer will be etched to form the opening for the bottom electrode ...
Resonance module and wireless power transmitter including the same
Samsung Electro-mechanics Co., Ltd.
November 30, 2017 - N°20170346341

A wireless power transmitter includes: a switching unit configured to receive a direct current (dc) voltage and to perform switching to output a first alternating current (ac) voltage; a piezoelectric transformer configured to receive the first ac voltage through a first piezoelectric element, and to output a second ac voltage corresponding to mechanical vibration of a second piezoelectric element caused ...
Piezoelectric Patent Pack
Download 1064+ patent application PDFs
Piezoelectric Patent Applications
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For professional research & prior art discovery
inventor
  • 1064+ full patent PDF documents of Piezoelectric-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Piezoelectric element and piezoelectric element applied device
Seiko Epson Corporation
November 30, 2017 - N°20170345994

There is provided a piezoelectric element which includes a first electrode which is formed on a substrate, a piezoelectric layer which is formed on the first electrode, and is formed from a compound oxide having an abo3 type perovskite structure in which potassium (k), sodium (na), niobium (nb), and manganese (mn) are provided, and a second electrode which is formed ...
Piezoelectric device
Nihon Dempa Kogyo Co., Ltd.
November 30, 2017 - N°20170345993

A piezoelectric device includes a piezoelectric vibrating piece, a base, a wire, a conductive adhesive, and a buffer layer. The piezoelectric vibrating piece includes excitation electrodes and extraction electrodes at both principal surfaces. The base includes the piezoelectric vibrating piece and a first wiring electrode and a second wiring electrode connected to the extraction electrodes. The wire connects the extraction ...
Stacked film, electronic device substrate, electronic device, and method of fabricating stacked film
Tdk Corporation
November 30, 2017 - N°20170345992

A stacked film includes an oxide film including a zro2 film, a metal oxide film provided on the oxide film, and a predetermined metal film provided on the metal oxide film and having a single orientation, and the metal oxide film is a pto film or a pdo film. In the case of this structure, the predetermined metal film has ...
Multi-layer pzt microactuator having a poled but inactive pzt constraining layer
Magnecomp Corporation
November 30, 2017 - N°20170345450

A multi-layer piezoelectric microactuator assembly has at least one poled and active piezoelectric layer and one poled but inactive piezoelectric layer. The poled but inactive layer acts as a constraining layer in resisting expansion or contract of the first piezoelectric layer thereby reducing or eliminating bending of the assembly as installed in an environment, thereby increasing the effective stroke length ...
Biological information recognition apparatus and scanning method of the biological information recognition apparatus
Befs Co., Ltd.
November 30, 2017 - N°20170344778

The present invention relates to a method a biological information recognition apparatus and a method for activating, by the biological information recognition apparatus, a recognition row and a recognition column including a plurality of piezoelectric elements in various patterns. More specifically, the present invention relates to a biological information recognition apparatus which may be used to identify a user by ...
Piezoelectric sensor element for a shear mode accelerometer
Brüel & Kjær Sound & Vibration Measurement A/s
November 30, 2017 - N°20170343578

A piezoelectric shear mode sensor element comprises a sensor block made of a piezoelectric material having an intrinsic polarization axis, wherein the piezoelectric material is also pyroelectric. The sensor block has in an axial direction axial ends and in lateral directions perpendicular to the axial direction lateral side faces. The sensor electrodes are adapted for capturing a shear mode sensor ...
Stress sensing device
Hon Hai Precision Industry Co., Ltd.
November 30, 2017 - N°20170343429

A stress sensing device for a robot, a medical device, or a toy, for example, includes a substrate, a support structure, and stress sensing components. Each sensing component of the four disclosed stress sensing components comprises a first electrode, a piezoelectric material layer, and a second electrode. Each first electrode comprises a two-ended body, and a hinge structure located at ...
Ultrasonic tilt sensor and related methods
Qualcomm Incorporated
November 30, 2017 - N°20170343346

A device may include a surface at least partially defining an enclosed region, a plurality of fluids within the enclosed region, the plurality of fluids comprising at least a first fluid having a first acoustic impedance and a second fluid having a second acoustic impedance different from the first acoustic impedance, a first piezoelectric transducer disposed on the surface, the ...
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