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Piezo

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


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Speaker
Dai-ichi Seiko Co., Ltd.
June 14, 2018 - N°20180167743

To respond to an n-bit digital signal, a speaker (1) is provided that includes an sound pressure generator (10) including 2i-1 piezoelectric elements (51, 52, and 53) for an i-th bit, and a total of 2n−1 stacked piezoelectric elements (51, 52, and 53). Due to divided vibration of the piezoelectric elements (51, 52, and 53), the speaker (1) has low directionality.
Speaker
O2aid, Inc.
June 14, 2018 - N°20180167719

A speaker which drives a dynamic speaker with one amplifier is provided which has an excellent frequency characteristic. This speaker 3 is provided with a dynamic speaker 2, a piezoelectric speaker 3, and one current amplifier 4 which drives both the dynamic speaker 2 and the piezoelectric speaker 3.
Membrane substrate structure for single crystal acoustic resonator device
Akoustis, Inc.
June 14, 2018 - N°20180167052

A substrate structure for an acoustic resonator device. The substrate has a substrate member comprising a plurality of support members configured to form an array structure.
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Piezoelectric resonator unit, module component, and manufacturing method for same
Murata Manufacturing Co., Ltd.
June 14, 2018 - N°20180167050

A piezoelectric resonator unit that includes a base, a piezoelectric resonator mounted on the base member, and a cover that is bonded to the base and that collectively forms an inner space that accommodates the piezoelectric resonator. The cover includes a top surface that faces the base with the piezoelectric resonator interposed therebetween, and a side wall that extends in ...
Method for outputting feedback based on piezoelectric element and electronic device supporting the same
Samsung Electronics Co., Ltd
June 14, 2018 - N°20180164890

An electronic device includes a display receiving a user input, at least one piezoelectric element disposed adjacent to the display and vibrating based on a specified control signal, a memory storing information about the user input, and a processor electrically connected to the display, the at least one piezoelectric element, and the memory. The processor applies a control signal corresponding ...
Mirror arrangement for lithography exposure apparatus and optical system comprising mirror arrangement
Carl Zeiss Smt Gmbh
June 14, 2018 - N°20180164581

Mirror elements (2a, 2b) include a substrate (4a, 4b) and a multilayer arrangement (5a, 5b). The multilayer arrangement includes a reflective layer system (6a, 6b) having a radiation entrance surface (7a, 7b) and a piezoelectric layer (8a, 8b) arranged between the radiation entrance surface and the substrate.
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Piezo Patent Applications
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For professional research & prior art discovery
inventor
  • 1180+ full patent PDF documents of Piezo-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.
Piezo actuator type valve
Illinois Tool Works Inc.
June 14, 2018 - N°20180163886

The disclosed embodiments include a valve assembly (300) that includes a piezo stack (308); a piezo actuator (306) encompassing the piezo stack, the piezo actuator having flexural elements (304) that provide a stroke multiplier that amplifies movement of the piezo stack; a valve block (318) having an inlet flow path (320) and an outlet flow path (322); a diaphragm (314) seated atop the valve block, wherein an outer ...
Cantilevered micro-valve and inkjet printer using said valve
Matthews International Corporation
June 14, 2018 - N°20180162140

A micro-valve includes an orifice plate including an orifice and a cantilevered beam coupled in spaced relation to the orifice plate and moveable between positions where the orifice is closed and opened by the cantilevered beam. The cantilevered beam includes one or more piezoelectric layers that facilitate bending of the cantilevered beam in response to the application of one or ...
Liquid jet head, liquid jet recording device, and liquid jet head drive method
Sii Printek Inc.
June 14, 2018 - N°20180162125

An ejection volume of a liquid can more finely be adjusted without lowering the ejection speed. The liquid jet head includes a plurality of nozzles adapted to jet the liquid, a piezoelectric actuator having a plurality of pressure chambers corresponding respectively to the nozzles and filled with the liquid, and adapted to vary a capacity of each of the pressure ...
Thickness mode transducers and related devices and methods
Senus Usa, Inc.
June 14, 2018 - N°20180161817

Transducers are provided including a piezoelectric block having first and second opposing surfaces; a first non-piezoelectric layer on the first surface of the piezoelectric block, the first layer including a low density material having a first thickness; and a second non-piezoelectric layer on the second surface of the piezoelectric block, the second layer including a high density material having a ...
Ultrasonic device and ultrasonic apparatus
Seiko Epson Corporation
June 14, 2018 - N°20180161816

An ultrasonic device includes: a substrate including a first groove portion and a second groove portion in a first surface; a vibration film provided on the first surface and closing the first groove portion and the second groove portion; a first piezoelectric element provided on the vibration film and overlapping the first groove portion in a plan view as viewed ...
Vibrator assembly comprising rotation connection unit
Ligasonix, Inc.
June 14, 2018 - N°20180161815

The transducer assembly having a rotational connection unit according to the present invention comprises: a piezoelectric element which applies oscillation to a rotating body, and is provided to rotate together with the rotating body; a first conductor that is provided to have a greater inner diameter than the diameters of the piezoelectric element and an inner diameter portion that contacts ...
Thickness-planar mode transducers and related devices
Sensus Usa, Inc.
June 14, 2018 - N°20180161814

Transducers are provided including a piezoelectric block having first and second opposing surfaces; a first conductive flexible support layer on the first surface of the piezoelectric block, the first flexible support layer having a first thickness; and a second flexible support layer on the second surface of the piezoelectric block, the second flexible support layer having a second thickness. Related ...
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Download 1180+ patent application PDFs
Piezo Patent Applications
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For professional research & prior art discovery
inventor
  • 1180+ full patent PDF documents of Piezo-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.
Ultrasonic transducer
Shenzhen Mindray Bio-medical Electronics Co., Ltd.
June 14, 2018 - N°20180161006

An ultrasonic transducer may include a piezoelectric wafer and backing layers. The backing layers may include a high impedance backing layer and a low impedance backing layer.
Weed-control device
Robert Bosch Gmbh
June 14, 2018 - N°20180160673

A device for damaging weeds, the device having a pressure-conveyance unit, which is designed to convey a fluid under pressure, and a fluid-dispensing unit, which is fluidically connected to the pressure-conveyance unit and is furthermore developed to dispense the pressurized fluid to the weed in order to damage the weed, the fluid-dispensing unit including at least one valve that has ...
Printed circuit board, power supply apparatus, image forming apparatus, and printed circuit board manufacturing method
Canon Kabushiki Kaisha
June 07, 2018 - N°20180160544

A piezoelectric transformer includes a piezoelectric element. Two primary side electrodes exist on the primary side of the piezoelectric element.
Electroacoustic transduction film and manufacturing method thereof, electroacoustic transducer, flexible display, vocal cord microphone, sensor ...
Fujifilm Corporation
June 07, 2018 - N°20180160248

Provided are an electroacoustic transduction film capable of reproducing a sound with a sufficient sound volume at a high conversion efficiency, a manufacturing method thereof, an electroacoustic transducer, a flexible display, a vocal cord microphone, and a sensor for a musical instrument. The electroacoustic transduction film includes: a polymer composite piezoelectric body in which piezoelectric body particles are dispersed in ...
Sound generator, vibration member for the sound generator, and sound generation system
Kyocera Corporation
June 07, 2018 - N°20180160232

A sound generator and sound generation system including the sound generator includes a piezoelectric element of a stack type having a multilayer structure. The piezoelectric element stretches and contracts along a stacking direction generates vibration according to a sound signal.
Earphone
Dai-ichi Seiko Co., Ltd.
June 07, 2018 - N°20180160209

An earphone (1) is provided that includes a first vibration plate (31) for vibration by a first piezoelectric element (32) and a cylindrically-shaped casing (2) for transmission of the vibration of the first vibration plate (31) to ear canal cartilage. The first vibration plate (31) is disposed inside the casing (2).
Filter and multiplexer
Taiyo Yuden Co., Ltd.
June 07, 2018 - N°20180159508

A filter includes: a first substrate; first and second piezoelectric thin film resonators located on the first substrate, each of the resonators including first and second electrodes facing each other across a piezoelectric film, a crystal orientation from the first electrode to the second electrode of the piezoelectric film being the same between the resonators, the first electrodes of the ...
Elastic wave device with sub-wavelength thick piezoelectric layer and high velocity layer
Skyworks Solutions, Inc.
June 07, 2018 - N°20180159507

Aspects of this disclosure relate to an elastic wave device. The elastic wave device includes a sub-wavelength thick piezoelectric layer, an interdigital transducer electrode on the piezoelectric layer, and a high velocity layer configured to inhibit an elastic wave from leaking from the piezoelectric layer at anti-resonance..
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