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Piezoelectric

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


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Acoustic wave device and method of fabricating the same
Taiyo Yuden Co., Ltd.
February 15, 2018 - N°20180048290

A method of fabricating an acoustic wave device includes: forming a piezoelectric thin film resonator and a second lower electrode on a substrate, the piezoelectric thin film resonator having a resonance region in which a first lower electrode and a first upper electrode face each other across a piezoelectric film, the piezoelectric film and the first upper electrode are not ...
Acoustic wave element, duplexer, and communication module
Kyocera Corporation
February 15, 2018 - N°20180048289

An acoustic wave element of the present disclosures has a piezoelectric substrate and an acoustic wave resonator on a main surface of the piezoelectric substrate. The acoustic wave resonator is one being divided into a first idt electrode and a second idt electrode which are electrically connected to the first idt electrode. The first idt electrode includes a first comb-shaped ...
Bulk acoustic resonator
Samsung Electro-mechanics Co., Ltd.
February 15, 2018 - N°20180048287

A bulk acoustic resonator may include a substrate; a resonating portion including a first electrode layer, a piezoelectric layer, and a second electrode layer which are sequentially stacked on the substrate, and partitioned into an active region and a non-active region; and a frame electrode layer including frame electrodes disposed within the active region to be spaced apart from each ...
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Resonator
Murata Manufacturing Co., Ltd.
February 15, 2018 - N°20180048284

A resonator including a vibrating portion with first and second electrodes and a piezoelectric film formed therebetween. Moreover, a frame surrounds the vibrating portion with a pair of holding units opposite to each other and connecting the vibrating portion with the frame. An extended electrode extends from the holder to the holding unit and either the first or second electrode ...
Bonded substrate, surface acoustic wave element, surface acoustic wave device, and method of manufacturing bonded ...
University Of Yamanashi
February 15, 2018 - N°20180048282

There is provided a bonded substrate including: a quartz substrate; and a piezoelectric substrate which is bonded on the quartz substrate and on which a surface acoustic wave propagates, wherein the quartz substrate and the piezoelectric substrate are bonded at a bonding interface through covalent bonding, and a surface acoustic wave element having a higher phase velocity and a higher ...
Bulk acoustic filter device and method of manufacturing the same
Samsung Electro-mechanics Co., Ltd.
February 15, 2018 - N°20180048281

A bulk acoustic filter device includes: a substrate; a cavity forming layer disposed on the substrate so as to form a cavity; a lower electrode disposed on the cavity; a piezoelectric layer disposed on the lower electrode; an upper electrode disposed on the piezoelectric layer; and a temperature compensation layer disposed below the lower electrode and in the cavity portion.
Piezoelectric Patent Pack
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Piezoelectric Patent Applications
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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.
Pressing sensor and electronic device
Murata Manufacturing Co., Ltd.
February 15, 2018 - N°20180045586

A pressing sensor that includes a pressing portion deformed by pressing, a piezoelectric sensor that generates a detection voltage based on the deformation amount, and a first current-voltage conversion circuit that converts a charge/discharge current for a capacitance of the piezoelectric sensor into a voltage signal and outputs the voltage signal. Moreover, a deformation amount detector obtains an integrated ...
Pump unit and method of manufacturing same
Daiken Medical Co., Ltd.
February 15, 2018 - N°20180045191

The pump unit comprises a pump including a piezoelectric element and a discharge mechanism for discharging fluid according to operation of the piezoelectric element, and a valve mechanism attached to the pump. The discharge mechanism and the valve mechanism are separately formed by joining a plurality of metal layer pieces stacked in a predetermined stacking direction by diffusion welding, and ...
Ultrasonic transducer, method for assembling same and flowmeter comprising at least one such transducer
Yzatec
February 15, 2018 - N°20180043395

Disclosed is an ultrasonic transducer including: at least one piezoelectric wafer having two parallel planar main faces: a front face and a posterior face; at least one posterior plate having two parallel planar main faces: an anterior face and a rear face, the anterior face of the posterior plate extending facing, and in contact with, the posterior face of the ...
Fragrance dispenser having a disposable piezoelectric cartridge with a snap-in bottle containing aromatic liquid
February 15, 2018 - N°20180043048

A fragrance dispenser unit has a piezoelectric discharge nozzle and a disposable snap-in air freshener containing aromatic liquid. The dispenser unit incorporates a battery power source and a piezoelectric driver circuit on a printed circuit board. The dispenser unit the cartridge includes a housing and an induction-sealed fragrance bottle that snaps into a socket at the bottom of the housing ...
Vital signs monitoring system
Apple Inc.
February 15, 2018 - N°20180042556

This relates to a monitoring system capable of measuring a plurality of vital signs. The monitoring system can include a plurality of sensors including, but not limited to, electrodes, piezoelectric sensors, temperature sensors, and accelerometers. The monitoring system can be capable of operating in one or more operation modes such as, for example: capacitance measurement mode, electrical measurement mode, piezoelectric ...
Electrical-acoustic transformation device
Goertek, Inc.
February 08, 2018 - N°20180041844

Disclosed is an electrical-acoustic transformation device, including: a vibration system and a magnetic circuit system with a magnetic gap; wherein the vibration system includes: a diaphragm, a voice coil provided below the diaphragm and suspending in the magnetic gap, and a piezoelectric plate provided on one side of the diaphragm; and conductive lines are formed on the diaphragm, the conductive ...
Piezoelectric speaker
Tokin Corporation
February 08, 2018 - N°20180041839

A piezoelectric speaker (100, 200, . . . , or 500) includes a piezoelectric element (1), and a metal vibration part (2, 22, . . . , or 352) to which the piezoelectric element (1) is made to adhere through an adhesive part (3). The piezoelectric element (1) is a substantially rectangular plate. The metal vibration part (2, 22, . . . , or 352) includes a substantially rectangular plate-shaped part (2, 12a, 32a, . . . , 132a, or the like) vibrated by the piezoelectric element. A frequency of ...
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.
Acoustic filtering circuitry including capacitor
Qorvo Us, Inc.
February 08, 2018 - N°20180041193

Acoustic filtering circuitry includes a piezoelectric layer, a dielectric layer, a plurality of acoustic resonators, and a capacitor. The dielectric layer is over a surface of the piezoelectric layer. The plurality of acoustic resonators each includes a transducer on the surface of the piezoelectric layer such that the transducer is between the piezoelectric layer and the dielectric layer. The capacitor ...
Bulk acoustic resonator and filter
Samsung Electro-mechanics Co., Ltd.
February 08, 2018 - N°20180041189

A bulk acoustic resonator includes a substrate, a first electrode disposed above the substrate, a piezoelectric body disposed on the first electrode and including a plurality of piezoelectric layers each including aluminum nitride with a doping material, and a second electrode disposed on the piezoelectric body, where at least one of the piezoelectric layers is a compressive piezoelectric layer formed ...
Surface acoustic wave elements having improved resistance to cracking, and methods of manufacturing same
Skyworks Filter Solutions Japan Co., Ltd.
February 08, 2018 - N°20180041187

Examples are directed to suppressing crack development in a surface acoustic wave (saw) element including a double-layered idt electrode. In one example the saw element includes a piezoelectric substrate, a comb-shaped electrode formed on a top surface of the piezoelectric substrate, and an insulation layer formed on the top surface of the piezoelectric substrate to cover the comb-shaped electrode. The ...
Surface acoustic wave elements with protective films
Skyworks Filter Solutions Japan Co., Ltd.
February 08, 2018 - N°20180041186

A protection film for a surface acoustic wave element, the protection film being configured to prevent moisture absorption into a silicon dioxide film to improve the moisture resistance capability and configured to be unsusceptible to oxidation and stable such that the propagation characteristics of the surface acoustic wave are not adversely affected. The surface acoustic wave element includes a piezoelectric ...
Piezoelectric power generation device
Murata Manufacturing Co., Ltd.
February 08, 2018 - N°20180041142

A piezoelectric power generation device comprises a power generation element which includes a support body having a plate-like planar portion with first and second opposed main surfaces and a projecting portion projecting from a center portion of the second main surface. The first projecting portion has an outer periphery when seen in plan view along a direction perpendicular to the ...
Ultrasonic transducer unit
Hitachi, Ltd.
February 08, 2018 - N°20180040805

A resonance layer (30) and an acoustic separation layer (34) are arranged adjacent to each other between a piezoelectric element (24) and a circuit board (16) provided with an electronic circuit for driving the piezoelectric element. The acoustic impedance of the resonance layer (30) is higher than that of the piezoelectric element (24), and the acoustic impedance of the acoustic separation layer (34) is lower than that ...
Flexible device and operating methods thereof
Samsung Electronics Co., Ltd.
February 08, 2018 - N°20180040803

A flexible device includes a flexible body and a plurality of piezoelectric materials arranged on the flexible body that deform in response to drive signals causing deformation of the flexible body of the flexible device.
Piezoelectric material member capable of generating different frequencies and transducer therewith
National Taiwan University Of Science And Technology
February 08, 2018 - N°20180040801

A piezoelectric material member includes a piezoelectric body, an upper electrode and a lower electrode. The upper electrode and the lower electrode are disposed on different sides of the piezoelectric body. The upper electrode has a first upper electrode section and a second upper electrode section separated from the first upper electrode section. The lower electrode has a first lower ...
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