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Piezo

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


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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 vibration component and application method
Murata Manufacturing Co., Ltd.
November 30, 2017 - N°20170345995

A piezoelectric vibration component that includes a piezoelectric vibrator, a substrate, and a conductive adhesive that bonds the piezoelectric vibrator to the substrate. The conductive adhesive contains a silicone-based base resin, a cross-linker, a conductive filler, and an insulating filler. The silicone-based base resin has a weight-average molecular weight of 20,000 to 102,000. The cross-linker has a number-average molecular weight of 1,950 to 4,620. ...
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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 ...
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Piezo Patent Applications
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  • 1180+ full patent PDF documents of Piezo-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
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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 ...
Multi-axis piezoresistive force sensor
Koc Universitesi
November 30, 2017 - N°20170343431

A microelectromechanical system (mems) sensor device comprising at least one microelectromechanical system sensor to characterize intracellular dynamics and behavior of a living biological cell so as to quantitatively measure the mechanical strength thereof. The microelectromechanical system sensor being responsive to mechanical force changes during said cell's contraction, migration, proliferation and differentiation.
Miniaturized load sensor device having low sensitivity to thermo-mechanical packaging stress, in particular force and ...
Stmicroelectronics S.r.l.
November 30, 2017 - N°20170343430

A load-sensing device is arranged in a package forming a chamber. The package has a deformable substrate configured, in use, to be deformed by an external force. A sensor unit is positioned in direct contact with the deformable substrate and is configured to detect deformations of the deformable substrate. An elastic element within of the chamber is arranged to act ...
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 ...
Rocker motion-powered generators for rocker-mounted electronic devices
Eaton Corporation
November 30, 2017 - N°20170342866

An internal combustion engine has a valvetrain that includes a rocker arm assembly on which is mounted an electronic device and at least a part of a generator. The generator converts some of the mechanical energy that is transmitted through the rocker arm assemblies into electricity. That electricity may be used to power an electric latch, a transmitter, or another ...
Electrical energy generation within an elevator installation
Inventio Ag
November 30, 2017 - N°20170341907

An elevator installation and method to passively and reliably generate electrical energy while an elevator installation is in operation includes an elevator car, a tension member for supporting and moving the elevator car, and a pulley engaging with the tension member. Piezoelectric elements are applied to or embedded within the tension member. As the tension member is driven to move ...
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Piezo Patent Applications
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  • 1180+ full patent PDF documents of Piezo-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
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Piezoelectric device, liquid ejecting head, manufacturing method of piezoelectric device, and manufacturing method of liquid ...
Seiko Epson Corporation
November 30, 2017 - N°20170341394

A piezoelectric device includes a first substrate that includes a piezoelectric element (32) provided in a first region where bending deformation is allowed and an electrode layer (39) electrically connected to the piezoelectric element (32), a second substrate in which a bump electrode (43) abutting and conducting the electrode layer (39), and having elasticity is formed, and which is disposed so as to face the ...
Liquid discharging apparatus
Seiko Epson Corporation
November 30, 2017 - N°20170341373

A liquid discharging apparatus enhances a detection accuracy of a contact state when a recording medium and a liquid discharging unit come into contact, and suppresses contact between the recording medium and the liquid discharging unit, which may cause damage. The liquid discharging apparatus includes a transport unit, a liquid discharging unit, a skirt provided to the liquid discharging unit ...
Film bulk acoustic wave resonator (fbar) having stress-relief
Avago Technologies General Ip (singapore) Pte. Ltd.
November 23, 2017 - N°20170338799

An acoustic resonator structure comprises: a substrate comprising a cavity having a plurality of sides; a first electrode disposed over the cavity; a first connection portion that connects to the first electrode over only one side of the plurality of sides of the cavity; a piezoelectric layer disposed over at least a portion of the first electrode; a second electrode ...
Piezoelectric thin film resonator, filter, and multiplexer
Taiyo Yuden Co., Ltd.
November 23, 2017 - N°20170338798

A piezoelectric thin film resonator includes: a substrate; a piezoelectric film that is located on the substrate; a lower electrode that is located on the substrate through an air gap, makes contact with the piezoelectric film, and includes a thin film part and a thick film part in which a distance from the air gap to a surface making contact ...
Electronic component
Murata Manufacturing Co., Ltd.
November 23, 2017 - N°20170338797

In an electronic component, electrodes defining functional portions are provided on a piezoelectric substrate. In order to define a hollow portion which the functional portions face, there are provided a first support with a frame shape, and second supports on the piezoelectric substrate in an inner side region surrounded by the first support. A cover is laminated on the first ...
Elastic wave element, filter element, and communication device
Kyocera Corporation
November 23, 2017 - N°20170338796

An elastic wave element having a piezoelectric substrate equipped with a first main surface, and an excitation electrode arranged on the first main surface and having multiple electrode fingers, wherein, in a cross-sectional view in the direction orthogonal to the first main surface, the width of the electrode fingers at a first height at a distance from the first main ...
Elastic wave device
Murata Manufacturing Co., Ltd.
November 23, 2017 - N°20170338795

An elastic wave device includes a substrate including a piezoelectric material layer and an idt electrode on the piezoelectric material layer. The idt electrode includes a pt film, a ti film on the pt film, and an al-based metal film on the ti film. The ti film is quasi-single-crystalline.
Electrical machines
Katholieke Universiteit Leuven
November 23, 2017 - N°20170338752

A stator or a rotor for use in an electrical machine comprises a composite element having a rigid mass suitable for including at least one magnetostrictive electrode bar, at least one magnetostrictive electrode bar, and a piezoelectric material in between the rigid mass material and the magnetostrictive electrode bars. The rigid mass, the magnetostrictive electrode bars and the piezoelectric material ...
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