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Piezo patents

      

This page is updated frequently with new Piezo-related patent applications.




 Piezoelectric thin film resonator and  fabricating the same patent thumbnailnew patent Piezoelectric thin film resonator and fabricating the same
A piezoelectric thin film resonator includes: a lower electrode and an upper electrode facing each other across a piezoelectric film; an insertion film inserted into the piezoelectric film, located in at least a part of an outer peripheral region in a resonance region and outside the outer peripheral region, and not located in a center region of the resonance region; a protective film on the upper electrode and the piezoelectric film; and a wiring line connecting to the lower electrode and covering an outer periphery of the protective film in an extraction region of the lower electrode, wherein in the extraction region, an outer periphery of the insertion film is further out than an outer periphery of the upper electrode and further in than an outer periphery of the piezoelectric film, and the outer periphery of the protective film is further out than the outer periphery of the insertion film.. .
Taiyo Yuden Co., Ltd.


 Acoustic generator, acoustic generation apparatus, portable terminal, and electronic apparatus patent thumbnailnew patent Acoustic generator, acoustic generation apparatus, portable terminal, and electronic apparatus
There are provided an acoustic generator, an acoustic generation apparatus, a portable terminal and an electronic apparatus, which have an improved sound quality. An acoustic generator includes a piezoelectric element having a piezoelectric body; and a vibration plate joined to the piezoelectric body via a joining material, distances between the vibration plate and the piezoelectric body being different.
Kyocera Corporation


 Driving circuit for driving a capacitive load patent thumbnailnew patent Driving circuit for driving a capacitive load
Provided is a driving circuit for driving a capacitive load which includes a modulation circuit which generates a modulation signal which is obtained by pulse-modulating a source signal, a transistor which generates an amplified modulation signal by amplifying the modulation signal, a low pass filter which generates a drive signal by smoothening the amplified modulation signal, a piezoelectric element which is displaced by receiving the drive signal, and a circuit substrate on which the transistor is mounted. The transistor includes a first electrode, a second electrode, a third electrode, and a clip which has conductivity, is electrically connected to the first electrode.
Seiko Epson Corporation


 Bulk acoustic wave resonator comprising multiple acoustic reflectors patent thumbnailnew patent Bulk acoustic wave resonator comprising multiple acoustic reflectors
A bulk acoustic wave (baw) resonator includes: a plurality of acoustic reflectors disposed in a substrate; a lower electrode disposed over the plurality of acoustic reflectors; a piezoelectric layer disposed over the lower electrode; and a plurality of upper electrodes, disposed over the piezoelectric layer. One of the plurality of upper electrodes is formed over a respective one of the plurality of acoustic reflectors.
Avago Technologies General Ip (singapore) Pte. Ltd.


 Mems resonator with high quality factor patent thumbnailnew patent Mems resonator with high quality factor
A symmetrical mems resonator is disclosed with a high quality factor. The mems resonator includes a silicon layer with a top surface and bottom surface opposite the top surface.
Murata Manufacturing Co., Ltd.


 Acoustic resonator structure having comprising a plurality of connection-side contacts patent thumbnailnew patent Acoustic resonator structure having comprising a plurality of connection-side contacts
An acoustic resonator comprises a first electrode and second electrode comprising a plurality of sides. At least one of the sides of the second electrode comprises a cantilevered portion.
Avago Technologies General Ip (singapore) Pte. Ltd.


 Piezoelectric body, vibration wave motor and electronic apparatus patent thumbnailnew patent Piezoelectric body, vibration wave motor and electronic apparatus
To improve both of the mechanical reliability and electrical reliability of an electronic apparatus including a piezoelectric body, a vibrator, and a vibration wave motor. The piezoelectric body is configured by bonding a piezoelectric element and a flexible printed circuit substrate fpc, a coverlay has an end n made up of a first outline part and a second outline part that intersect with wiring layers, the first outline part coming in contact with an electrode f1 of electrodes f, and the second outline part coming in contact with another electrode of the electrodes f.
Canon Kabushiki Kaisha


 Oscillatory wave motor patent thumbnailnew patent Oscillatory wave motor
An oscillatory wave motor includes a piezoelectric element, an elastic member that includes a projecting portion, a friction member that moves relative to the elastic member and includes a contact surface in contact with the projecting portion, and pressing unit that brings the projecting portion into contact under pressure with the contact surface in a pressing direction that is a direction of a perpendicular line of the contact surface. The projecting portion includes a spherical portion formed in a center of the projecting portion, a contact portion formed on or near a center of the spherical portion, a flat portion formed around the spherical portion, and a corner portion formed around the flat portion.
Canon Kabushiki Kaisha


 Vibration wave motor patent thumbnailnew patent Vibration wave motor
A vibration wave motor includes: a vibrator including a vibration plate and a piezoelectric element; a friction member frictionally contacting the vibrator; a pressing member generating a pressing force to bring the vibrator in frictional contact with the friction member; and a pressing force transmitting member between the vibrator and the pressing member to transmit the pressing force to the vibrator. The vibrator and the friction member move in a relative movement direction by an elliptical vibration, and the pressing force transmitting member includes: an engagement portion formed near a contact portion with the pressing member and engaged with the pressing member; first restricting portion restricting movement in the relative movement direction; and a second restricting portion.
Canon Kabushiki Kaisha


 Piezoelectric ceramic,  producing the same, piezoelectric element, multilayer piezoelectric element, liquid ejection head, liquid ejecting apparatus, ultrasonic motor, optical device, vibrating apparatus, dust-removing apparatus, imaging apparatus, and electronic device patent thumbnailnew patent Piezoelectric ceramic, producing the same, piezoelectric element, multilayer piezoelectric element, liquid ejection head, liquid ejecting apparatus, ultrasonic motor, optical device, vibrating apparatus, dust-removing apparatus, imaging apparatus, and electronic device
(naxba1-y)(nbyti1-y)o3, where 0.85≦x≦0.92, 0.85≦y≦0.92, 0.95≦x/y≦1.05.  general formula (1):. .

new patent

Ultrasonic sensor, manufacturing same and ultrasonic sensor array

An ultrasonic sensor can include a substrate, a first electrode, a sensing layer and a second electrode. The first electrode is coupled on the substrate.
Hon Hai Precision Industry Co., Ltd.

new patent

Friction drive actuator

Provided is a friction drive actuator that is resistant to contamination of, for example, extraneous matter. An ultrasonic actuator according to an aspect of the present invention drives a columnar insertion section and includes a columnar vibrating body (40), whose distal end is pressed against a side surface of the insertion section, and a piezoelectric element (44), an upper electrode (44a), and a lower electrode (44b) that are provided at one side surface of the vibrating body..
Sharp Kabushiki Kaisha

new patent

Method for producing intravascular ultrasonic transducers and structure thereof

The present invention relates to a method for producing an intravascular ultrasonic transducer and a structure for same, the method for producing a ultrasonic transducer producing a single element by: forming a piezoelectric element lapped according to a previously set thickness; depositing conductive material on the lapped surface of the piezoelectric element; forming a matched layer and a rear surface layer by casting the front and rear surfaces of the piezoelectric element to which conductive material has been deposited; lapping according to a previously set thickness; and dicing the bulk material, which is a stack of a matched layer, a piezoelectric element and a rear surface layer, along the stack direction so that the size of the element is less than the critical size for intravascular ultrasound (ivus).. .
Sogang University Research Foundation

new patent

Micro-electro-mechanical producing the same

A micro-electro-mechanical system includes a deflectable actuator plate and an abutment area. An integral piezoelectric functional layer of the deflectable actuator plate is configured across an area aps of the actuator plate.
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

new patent

Multi-layer capacitor having upper and lower portions with different dielectric layer materials to reduce acoustic vibration

A multi-layer capacitor such as a multi-layer-ceramic-capacitor (mlcc) has upper and lower dielectric layers separating upper and lower electrode layers, where the lower dielectric layers have a lower dielectric constant than the upper dielectric layers to reduce piezoelectric effect driven capacitor reaction forces on a printed circuit board (pcb) on which the capacitor is mounted. Such an mlcc may include the upper dielectric and electrode layers in a top portion of the mlcc; and the lower dielectric and electrode layers in a bottom portion of the mlcc.
Apple Inc.

new patent

Method of assembly and manufacturing of piezo actuated fabry-perot interferometer

A device for tunable optical filter includes a substrate, one or more piezos, a bottom mirror, and a top mirror. The one or more piezos are placed on the substrate.
Trutag Technologies, Inc.

new patent

Fiber optic sensor array for electromagnetic data collection

An electromagnetic sensitive fiber optic sensor, including a cylinder portion with a hole through the center, where a surface of the cylinder portion includes a magnetostrictive material, and a fiber cable threaded through the cylinder portion and wrapped around the cylinder portion multiple times. In another embodiment, a mandrel surrounds a magnetorestrictive or piezoelectric material and the fiber cable is wrapped around the mandrel..
Deep Imaging Technologies, Inc.

new patent

Ultrasonic sensor

An ultrasonic sensor (1) comprises a housing (2) and a diaphragm (4), to which a piezo-electric element (6) is fastened, and an electric connector region (8) which has an earth connector (24). A layer made from an electrically non-conducting material is arranged between the diaphragm (4) and the piezo-electric element (6), and the diaphragm (4) is connected to the earth connector (24) in an electrically conducting manner..
Valeo Schalter Und Sensoren Gmbh

new patent

Integrated pressure sensor with double measuring scale, pressure measuring device including the integrated pressure sensor, braking system, and measuring a pressure using the integrated pressure sensor

A pressure sensor with double measuring scale includes: a flexible body designed to undergo deflection as a function of a the pressure; piezoresistive transducers for detecting the deflection; a first focusing region designed to concentrate, during a first operating condition, a first value of the pressure in a first portion of the flexible body so as to generate a deflection of the first portion of the flexible body; and a second focusing region designed to concentrate, during a second operating condition, a second value of said pressure in a second portion of the flexible body so as to generate a deflection of the second portion of the flexible body. The piezoresistive transducers correlate the deflection of the first portion of the flexible body to the first pressure value and the deflection of the second portion of the flexible body to the second pressure value..
Stmicroelectronics S.r.l.

new patent

Piezoresistive boron doped diamond nanowire

A uncd nanowire comprises a first end electrically coupled to a first contact pad which is disposed on a substrate. A second end is electrically coupled to a second contact pad also disposed on the substrate.
Uchicago Argonne, Llc

new patent

Sensor capable of sensing shear force

A sensor able to detect shearing forces as well as simple pressure includes a substrate, a support secured to the substrate, and shear force sensing unit located at an exterior surface of the support facing away from the substrate. The support can be elastically deformed in proportion to the shearing force or pressure.
Hon Hai Precision Industry Co., Ltd.

new patent

Information pushing device and smart ventilation apparatus

An information pushing device includes an information emitting device and a plurality of power generation members. The information pushing device is configured to push wireless information to mobile terminal equipments.
Hon Hai Precision Industry Co., Ltd.

new patent

Blower

A piezoelectric blower includes a valve, a housing, a vibrating plate, and a piezoelectric element. The vibrating plate forms, together with the housing, a column-shaped blower chamber such that the blower chamber is interposed therebetween in a thickness direction of the vibrating plate.
Murata Manufacturing Co., Ltd.

new patent

Piezoelectrically-controlled fuel delivery system

A fuel delivery system is provided for filling a fuel tank with a prescribed volume of fuel. The delivery system includes a fuel tank, a piezoelectrically-actuated fill control valve for controlling flow of fuel into the fuel tank, and a controller for controlling the closure rate of the fill control valve to accurately control the volume of fuel provided to the fuel tank.
Parker-hannifin Corporation

new patent

Liquid discharging apparatus

A liquid discharging apparatus includes: a channel structure having nozzles aligned in a first direction and pressure chambers aligned in the first direction corresponding to the nozzles respectively; piezoelectric elements aligned in the first direction in the channel structure, corresponding to the pressure chambers respectively; a cover covering the piezoelectric elements and having first and second wall portions arranged in a second direction orthogonal to the first direction and joined to the channel structure at first and second joint regions respectively; and traces being extended to one side in the second direction from the piezoelectric elements respectively, passing through the first region, and extending up to outside of the cover. An area of the first joint region is greater than an area of the second region..
Brother Kogyo Kabushiki Kaisha

new patent

Piezoelectric device, probe, electronic apparatus, and ultrasonic imaging apparatus

A piezoelectric device includes: an elastic layer that forms an insulating surface region at least partially and has an amorphous structure or random orientation at least in the surface region; a piezoelectric body that is provided on the elastic layer, has a first surface in contact with the elastic layer and a second surface on an opposite side to the first surface, and is preferentially oriented in an orientation region corresponding to the surface region in a plan view; a first electrode provided on the second surface of the piezoelectric body; and a second electrode that is provided on the second surface of the piezoelectric body. A gap is formed between the first and second electrodes corresponding to the orientation region in the plan view..
Seiko Epson Corporation

new patent

Nozzle, substrate treating apparatus including the same, and substrate treating method

Disclosed is a nozzle for supplying a treatment liquid to a substrate, the nozzle including a body having a passage, through which the treatment liquid flows, in the interior thereof, and having a discharge hole communicated with the passage and through which the treatment liquid is discharged, and a piezoelectric element that pressurize the treatment liquid flowing through the body to discharge the treatment liquid through the discharge hole in a state of droplets, wherein an average diameter of the droplets discharged through the discharge hole is equal to or greater than 5 micrometers and is less than 15 micrometers.. .
Semes Co., Ltd.

new patent

Materials, devices and systems for piezoelectric energy harvesting and storage

Materials and systems that enable high efficiency conversion of mechanical stress to electrical energy and methods of use thereof are described herein. The materials and systems are preferably used to provide power to medical devices implanted inside or used outside of a patient's body.
The Board Of Trustees Of The University Of Illinois

new patent

Universal piezo-magneto ultrasonic systems and methods

An ultrasonic unit manufacturing system and process are based on a universal ultrasonic generator unit that operates interchangeably with either one of piezoelectric and magnetostrictive ultrasonic devices, and optionally as well as with either on-off or power level control footswitches. The ultrasonic units use a generator unit having a detector that determines whether the connected device is piezoelectric or magnetostrictive, and activates the generator for the appropriate piezoelectric or magnetostrictive operating mode.



Piezo topics:
  • Piezoelectric
  • Transducer
  • Ultrasonic
  • Electric Actuator
  • Electronic Device
  • Electronic Apparatus
  • Damping Force
  • Radial Flow
  • Semiconductor Material
  • Semiconductor
  • Sound Transducer
  • Ultrasound
  • Synchronous
  • Asynchronous
  • Liquid Adhesive


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    This listing is a sample listing of patent applications related to Piezo for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Piezo with additional patents listed. Browse our RSS directory or Search for other possible listings.


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