Acoustic Wave Type Generator Or Receiver Patents (Class 310/322)
  • Patent number: 11486758
    Abstract: An ultrasonic sensor includes a casing and a piezoelectric vibrator element. The casing includes a first unit made of a metal and a second unit made of a resin. The first unit has a cylindrical or substantially cylindrical shape extending in a first direction. The second unit is connected to one end of the first unit in the first direction and includes a cylindrical section and a bottom plate. The cylindrical section extends in the first direction. The bottom plate is a disk-shaped portion which closes an end of the cylindrical section positioned farther away from the first unit in the first direction. The piezoelectric vibrator element is mounted on the bottom plate.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 1, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hirotoshi Hatakeyama
  • Patent number: 11419579
    Abstract: An ultrasonic sensor includes a vibration plate, a first electrode, a piezoelectric body, and a second electrode. The first electrode is laminated on the vibration plate, that has a length along a surface of the vibration plate in a first direction, and that has a width Wbe along the surface of the vibration plate in a second direction that is orthogonal to the first direction. The width Wbe is not more than the length. The piezoelectric body is laminated on the first electrode and has a width Wpz in the second direction. The second electrode is laminated on the piezoelectric body. A ratio Wbe/Wpz between the width Wbe of the first electrode and the width Wpz of the piezoelectric body is not less than 0.1 and not more than 0.8.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: August 23, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Masayoshi Yamada, Hiroshi Matsuda, Tomoaki Nakamura, Hiroshi Ito, Hiromu Miyazawa
  • Patent number: 11407105
    Abstract: A dielectric elastomer system (DES) variable stiffness actuator (VSA) is provided. In an embodiment, the DES VSA includes a variable stiffness module (VSM). The VSM includes a DES that softens when energized and stiffens when unpowered, an outer frame, and an inner frame member. The stiffness of the DES is variable. The outer frame supports the DES and the inner frame member, which is disposed within the DES. The inner frame member is configured to be displaceable with respect to the outer frame. The DES VSA also includes an actuation motor mechanically coupled to the inner frame member that is configured to cause a force to be applied to the inner frame member and the actuation motor is configured to control an equilibrium position of the DES VSA.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: August 9, 2022
    Assignee: Board of Regents, The University of Texas System
    Inventors: Robert D. Gregg, IV, Edgar A. Bolivar, David P. Allen, Walter E. Voit
  • Patent number: 11405715
    Abstract: The present technology relates to an information processing apparatus configured to obtain high comfortability. The information processing apparatus includes a plurality of board portions, an acquisition unit placed on one of the board portions and configured to acquire information associated with a wearer, and a connection portion being flexible and configured to connect the board portion to another of the board portions. The present technology is applicable to wearable devices.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: August 2, 2022
    Assignee: SONY CORPORATION
    Inventors: Ryuichi Namba, Makoto Akune
  • Patent number: 11405013
    Abstract: Embodiments of this disclosure relate to acoustic wave filters configured to filter radio frequency signals. An acoustic wave filter includes a first bulk acoustic wave resonator on a substrate, a second bulk acoustic wave resonator on the substrate, a conductor electrically connecting the first bulk acoustic wave resonator in anti-series with the second bulk acoustic wave resonator, and an air gap positioned between the conductor and a surface of the substrate. The air gap can reduce parasitic capacitance associated with the conductor. Acoustic wave filters disclosed herein can suppress a second harmonic.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: August 2, 2022
    Assignee: Skyworks Global Pte. Ltd.
    Inventors: Kwang Jae Shin, Renfeng Jin, Li Chen
  • Patent number: 11366076
    Abstract: In described examples, one or more devices include: apparatus including a lens element and a transducer to vibrate the lens element at an operating frequency when operating in an activated state; and controller circuitry. The controller circuitry is arranged to measure an impedance of the apparatus, to determine an estimated temperature of the apparatus in response to the measured impedance, to compare the estimated temperature against a temperature threshold for delineating an operating temperature range of the apparatus, and to toggle an activation state of the transducer in response to comparing the estimated temperature against the temperature threshold.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: June 21, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: David Patrick Magee, Stephen John Fedigan
  • Patent number: 11329210
    Abstract: A sensing device is provided. The sensing device includes a heat regulation mechanism to regulate a temperature of a piezoelectric resonator corresponding to a voltage, and uses a sensing sensor to cause a sensing object to adsorb to and desorb from the piezoelectric resonator by increase and decrease of the temperature. A drive voltage is regulated to regulate an amplification factor of a heat regulation voltage input to a drive voltage regulator that regulates the temperature of the heat regulation mechanism corresponding to the type of a sensing sensor connected to a device main body. Therefore, when a CQCM sensor that heats a crystal resonator using a heater circuit and a TQCM sensor that regulates a heat of the crystal resonator sing a Peltier element are each used, regulation ranges of the driving powers supplied to the respective heater circuit and Peltier element can be changed.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: May 10, 2022
    Assignee: NIHON DEMPA KOGYO CO., LTD.
    Inventors: Yuki Yanagisawa, Hiroyuki Kukita
  • Patent number: 11284200
    Abstract: A transducer includes a hollow housing, and a piezoelectric sheet which is disposed on a first portion of an inner wall of the housing, and a block which is disposed on a second portion of the inner wall of the housing.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: March 22, 2022
    Assignee: YAMAHA CORPORATION
    Inventors: Yu Tsuchihashi, Tomoya Miyata
  • Patent number: 11255823
    Abstract: Systems and methods for testing steam traps or other similar devices in a hot water or steam system are described. A tester includes a wand that is handheld that can communicate with a handheld electronic device which in turn can communicate with a central monitor for storing and compiling readings as historical profile data. The wand includes a probe to physically contact the device to acoustically sense the performance of the device. The probe includes a probe tip and a stack of acoustic elements, an electrode, a stack mass, and a head to covert the acoustic signal into an electrical signal. The handheld device includes circuitry to process the information, interact with the user, and transmit information to and from the handheld electronic device and/or the central monitor.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: February 22, 2022
    Assignee: ARMSTRONG INTERNATIONAL, INC.
    Inventors: Shane Russell, William R. Horton, Glenn T. Leggett, Robert E. Carter, Kurt Armstrong, Thomas Jack Secord, Michael Herman Gaines
  • Patent number: 11255965
    Abstract: Fresnel elevation focusing at a selected elevation angle is performed by transmitting a sequential set of Fresnel-focused ultrasound pulses, where a different Fresnel phase pattern is used for each pulse, and where the receive signals are coherently compounded. The different Fresnel patterns cause the secondary lobe energy to be reduced via averaging of variations of the pressure fields in the secondary lobe regions. In some embodiments, the method of coherently compounded Fresnel focusing is combined with coherently compounded defocused wave (e.g. plane wave or diverging wave) imaging in the azimuth direction. Each of the elevation slices are collected by changing the Fresnel patterns respectively employed when the sequence of plane waves or diverging waves are transmitted, such that the coherent compounding can benefit both planes simultaneously. Hadamard receive encoding and subsequent dynamic receive beamforming may be employed to further improve performance in the elevation direction.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: February 22, 2022
    Assignee: DALHOUSIE UNIVERSITY
    Inventors: Jeremy Brown, Christopher Samson, Katherine Latham
  • Patent number: 11246568
    Abstract: A circuit for 3D ultrasound imaging systems includes multiple sensor units, multiple unit circuits and multiple row sharing circuits. The unit circuits are connected with the sensor units respectively. Each row of unit circuits share a row sharing circuit. Each unit circuit includes a first electrically controlled switch, a second electrically controlled switch and a control circuit. Each row sharing circuit includes a signal transmission bus, a signal receiving bus and a row main control circuit. The signal transmission bus and the signal receiving bus of each row sharing circuit extend through a corresponding row of unit circuits. The row main control circuit of each row is configured to transmit main control signals, transmission control signals and receiving control signals to a corresponding row of unit circuits so as to select the corresponding sensor units to transmit or receive ultrasound signals.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: February 15, 2022
    Assignee: SHENZHEN DANSHA TECHNOLOGY CO., LTD.
    Inventor: Ying Liu
  • Patent number: 11220042
    Abstract: Disclosed herein are systems and methods method of additively manufacturing distributed sensors in a structural workpiece. The apparatus includes a movable head having an actuator coupled to an ejection port to regulate dispensation of a first thermoplastic polymer fed from an elongated chamber located in the movable head and coupled to the ejection port, wherein the movable printer head comprises a pair of electrodes proximately positioned relative to the chamber so as to direct an electric field, when the electrodes are energized, thereacross or therethough. The apparatus further includes an electric circuit operatively connected to the pair of electrodes, the electric circuit being configured to generate a poling voltage.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: January 11, 2022
    Assignee: Ohio State Innovation Foundation
    Inventor: Vishnu Baba Sundaresan
  • Patent number: 11206011
    Abstract: A filter includes a signal path connecting an input terminal and an output terminal one or more series arm circuits on the signal path, and one or more parallel arm circuits connected to one or more nodes disposed on the signal path and a ground electrode. The one or more series arm circuits define any of a section between nodes adjacent to each other, a section between a node closest to the input terminal and the input terminal, and a section between a node closest to the output terminal and the output terminal. Among the one or more series arm circuits and the one or more parallel arm circuits, one circuit does not include any acoustic wave resonator, and another circuit includes an acoustic wave resonator.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: December 21, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hidetaro Nakazawa, Tetsuro Okuda
  • Patent number: 11106273
    Abstract: A wearable system with a gestural interface for wearing on, for instance, the wrist of a user. The system comprises an ultrasonic transceiver array structure and may comprise a pico projector display element for displaying an image on a surface. User anatomical feature inputs are received in the form of ultrasound signals representative of a spatio-temporal cross-section of the wrist of the user by articulating wrist, finger and hand postures, which articulations are translated into gestures. Inputs from inertial and other sensors are used by the system as part of the anatomical feature posture identification method and device. Gestures are recognized using a mathematically-modeled, simulation-based set of biological metrics of tissue objects, which gestures are converted to executable computer instructions. Embodiments of the system disclosed herein may also be used to monitor biometric and health data over computer networks or using onboard systems.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: August 31, 2021
    Assignee: Ostendo Technologies, Inc.
    Inventors: Siddharth S. Hazra, Hussein S. El-Ghoroury
  • Patent number: 11011694
    Abstract: A tactile sense presenting device that includes a control unit, a driving unit, and a vibrating device. The vibrating device includes a diaphragm, a piezoelectric film that is bridged over the diaphragm and stretches and contracts in a planar direction, and spacers that are provided in a gap portion, in which the piezoelectric film and the diaphragm face each other, and are fixed to the diaphragm.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: May 18, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kentaro Usui, Junichi Hashimoto
  • Patent number: 11002954
    Abstract: A cleaning device includes a casing holding an image capturing device, a protective cover disposed in a visual field of the image capturing device, a vibrator to vibrate the protective cover, a controller to control the vibrator, a monitor to detect an electrical characteristic value associated with a vibration of the vibrator, and a storage to store determination criteria based on which the controller evaluates the electrical characteristic value detected by the monitor. The controller is configured to evaluate the electrical characteristic value based on the plurality of determination criteria stored in the storage and clean a surface of the translucent body by controlling the vibrator according to the determination.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: May 11, 2021
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuhiro Kuratani, Katsumi Fujimoto, Kenji Nishiyama, Chikahiro Horiguchi, Shinichiro Ichiguchi, Masaaki Takata, Yuzo Mizushima, Yuuki Ishii
  • Patent number: 10953436
    Abstract: An apparatus for separating particles from a fluid stream includes a flow chamber that has at least one inlet and at least one outlet. At least one ultrasonic transducer is located on a wall of the flow chamber. The transducer includes a piezoelectric array with at least two piezoelectric elements. The piezoelectric array includes a piezoelectric material to create a multi-dimensional acoustic standing wave in the flow chamber. A reflector is located on the wall on the opposite side of the flow chamber from the at least one ultrasonic transducer.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: March 23, 2021
    Assignee: FloDesign Sonics, Inc.
    Inventors: Bart Lipkens, Jason Dionne
  • Patent number: 10945068
    Abstract: An ultrasonic wave-based voice signal transmission system, where the system includes an ultrasonic modulator, a beamforming controller, an ultrasonic transducer array, and a user detector. The ultrasonic modulator is configured to modulate a voice signal onto an ultrasonic band and output the modulated voice signal to the beamforming controller. The user detector is configured to detect a user and output a detection result of the user to the beamforming controller. The beamforming controller is configured to control according to the detection result from the user detector, a phase and amplitude of the modulated voice signal to obtain an electrical signal pointing to the user, and output, to the ultrasonic transducer array, the electrical signal pointing to the user. Therefore, call convenience can be improved for the user.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 9, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chaojun Deng, Liming Fang
  • Patent number: 10921288
    Abstract: A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: February 16, 2021
    Assignee: Kamstrup A/S
    Inventors: Søren Tønnes Nielsen, Peter Schmidt Laursen, Jens Lykke Sørensen, René Gajda Kristensen, Martin Christian Høj Petersen
  • Patent number: 10864161
    Abstract: Systems and methods for producing liposomes, including control liposomes and immunoliposomes targeting breast cancer are provided. Systems and methods for treating breast cancer, using targeted immunoliposomes produced according to various methods are also disclosed herein. For example, trastuzumab-conjugated immunoliposomes may be used to deliver chemotherapeutic agents to breast cancer tissues for the treatment of breast cancer. Systems and methods for actuating liposomes using ultrasound are also disclosed, such as systems and methods for actuating trastuzumab-conjugated liposomes accumulated in breast cancer tissues for the treatment of breast cancer.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 15, 2020
    Assignee: American University of Sharjah
    Inventors: Ghaleb Husseini, Mohammad Al-Sayah, Amal Elsadig
  • Patent number: 10863274
    Abstract: Apparatuses for playing signals received from the internet or other information highway or a stored database on one or more speakers are described. The apparatus has a receiver for receiving information from preselected addresses; a processor for interpreting the signals; and at least one speaker for playing signals from the internet. There is at least display device in the form of a holographic projector connected to the receiver for displaying a 3D holographic image received from the internet. The processor selects images that correspond with the signals played by the speaker. The speaker projects the sound into certain areas of the environment, so that it appears that the sound is coming from a place other than the actual speaker itself. A holographic projector connected to the processor projects a 3D holographic image onto the place from which the sound appears to originate, rather than on the actual speaker itself.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: December 8, 2020
    Assignee: NYMC Biotechnology Commercialization, LLC
    Inventor: Donald Spector
  • Patent number: 10862453
    Abstract: The oscillating element includes a crystal blank, a pair of excitation electrodes, and a pair of pad portions. The crystal blank includes a pair of major surfaces, at least partially configured by crystal planes, and side surfaces which connect outer edges of the pair of major surfaces. Further, it includes a mesa portion and an outer peripheral portion which surrounds the mesa portion and has a thickness between the pair of major surfaces thinner than that of the mesa portion. The excitation electrodes are individually located on the pair of major surfaces. The pair of pad portions are located on one of the pairs of major surfaces and are electrically connected with the excitation electrodes. At least a portion of an edge part which is in contact with a crystal plane includes a projecting portion, which does not exceed the height of the mesa portion from the outer peripheral portion.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: December 8, 2020
    Assignee: KYOCERA CORPORATION
    Inventors: Shiro Miyazaki, Masahiko Goto, Yoshiyuki Kawaguchi, Hiroshi Hayashi
  • Patent number: 10847708
    Abstract: The present invention relates to a transducer device having a planar array of electroacoustic cells, each including a piezoelectric bilayer unit. The transducer device achieves high transmission sensitivity across a broad bandwidth. The transducer device may be designed to have a broad or a focused directivity pattern, or may be multi-frequency, depending on the particular application and has a range of applications. For example, the transducer device may be used with an implanted passive ultrasonically excitable resonating sensor, to excite the sensor and/or to interrogate the sensor, for example in conjunction with Doppler-based analysis of the resonance frequency of the sensor, and/or to locate an implanted sensor. The invention also relates to a method of manufacturing the device.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: November 24, 2020
    Assignee: Microtech Medical Technologies Ltd.
    Inventors: Alessandro Stuart Savoia, Giosuè Caliano, Alexander Melamud, Eric S. Tammam
  • Patent number: 10840884
    Abstract: An electronic device includes a passive substrate. A passive-on-glass (POG) device is on the passive substrate. A bulk acoustic wave (BAW) filter is on the passive substrate. The POG device can be any type of passive component/device, such as an inductor, capacitor, LC-resonator or filter. The POG device can include a piezoelectric material. The POG device and the BAW filter may be side-by-side on the passive substrate.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: November 17, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Stanley Seungchul Song, Jonghae Kim, Periannan Chidambaram
  • Patent number: 10763824
    Abstract: A ladder filter includes at least one series arm resonator connected in a path between first and second input/output terminals, at least two parallel arm resonators each connected between a connection node in the path and a ground, and an inductor connected in series to the at least one series arm resonator. The inductor is closer to the first input/output terminal than are the at least one series arm resonator and the at least two parallel arm resonators. Of the at least two parallel arm resonators, a first parallel arm resonator connected closest to the second input/output terminal has the highest anti-resonant frequency.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: September 1, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Toshiaki Takata
  • Patent number: 10758929
    Abstract: The invention relates to an aerosol generator (1), comprising a housing (20, 22), having a first holding member (24, 24?, 24?) and a second holding member (38), and a vibratable element (4) for generating an aerosol. The vibratable element (4) is at least partially accommodated in the housing (20, 22). The vibratable element (4) is contacted by and held between the first and second holding members (24, 24?, 24?; 38). The first holding member (24, 24?, 24?) is less flexible than the second holding member (38). Further, the invention relates to an aerosol delivery device comprising the aerosol generator (1).
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: September 1, 2020
    Assignee: PARI Pharma GmbH
    Inventors: Hans-Lukas Anzenberger, Carola Fuchs, Thomas Gallem, Uwe Hetzer, Philipp Holzmann, Gerhard Pumm
  • Patent number: 10751756
    Abstract: A piezoelectric film having a porosity between 20 and 40%, a thickness ranging from tens of microns to less than a few millimeters can be used to form an ultrasonic transducer UT for operation in elevated temperature ranges, that emit pulses having a high bandwidth. Such piezoelectric films exhibit greater flexibility allowing for conformation of the UT to a surface, and obviate the need for couplings or backings. Furthermore, a method of fabricating an UT having these advantages as well as better bonding between the piezoelectric film and electrodes involves controlling porosity within the piezoelectric film.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: August 25, 2020
    Inventors: Makiko Kobayashi, Cheng-Kuei Jen
  • Patent number: 10727808
    Abstract: An acoustic resonator includes a first electrode disposed over a substrate; a piezoelectric layer disposed over the first electrode; a second electrode disposed over the piezoelectric layer; and a ring disposed in either the first electrode, or in the second electrode. The ring defines at least a portion of a perimeter along an active region of the acoustic resonator.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 28, 2020
    Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
    Inventors: Qiang Zou, Dariusz Burak
  • Patent number: 10702889
    Abstract: The ultrasonic tubular transducer is activated at the centre thereof by two symmetrical electromechanical converters. The vibration generated by the two electromechanical converters is converted and then transmitted to the tube via a coupler. The ultrasonic transducer can be vibrationally isolated from the interfaces thereof by caps equally suitable for connecting the transducer to a stationary frame, a free end or another similar ultrasonic transducer. A device for pre-stressing electromechanical converters has a hole bored at the centre thereof in order to allow cables from the transducer as well as from adjacent transducers to pass therethrough.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 7, 2020
    Assignee: CEDRAT TECHNOLOGIES
    Inventors: Timothée Forissier, Nabil Bencheikh, Frank Claeyssen, Alexandre Pages
  • Patent number: 10698649
    Abstract: An operation switch unit attached to a game machine includes a spin button that receives an input operation of an operator, an input detector that detects that the input operation of the operator is performed, and a controller that controls a directional speaker such that the directional speaker emits a directional sound, which does not spread uniformly but has directionality, to the operator as a notification that an operation input is performed based on a detection signal from the input detector.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: June 30, 2020
    Assignee: Omron Corporation
    Inventors: Takuma Ikeda, Hiroyuki Onitsuka, Takahiro Ono, Masaaki Sumi
  • Patent number: 10672972
    Abstract: 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 of the circuit board (16). An ultrasonic wave is reflected at the interface between the resonance layer (30) and the acoustic separation layer (34) where the difference in acoustic impedance is large, and the ultrasonic wave propagating to the circuit-board (16) side is reduced.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: June 2, 2020
    Assignee: HITACHI, LTD.
    Inventors: Kazuya Motoki, Kazuhiro Kobayashi, Toru Watanabe
  • Patent number: 10634648
    Abstract: This application generally relates to systems and methods of using Radio Frequency Identification (RFID) devices to remotely analyze objects and structures, and more particularly, this application relates to systems and methods of using RFID devices to remotely analyze properties and conditions of a surface of objects and structures.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: April 28, 2020
    Assignee: AVERY DENNISON CORPORATION
    Inventor: Ian James Forster
  • Patent number: 10632499
    Abstract: 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 second thickness, the second thickness being different from the first thickness and being at least two times the first thickness. Related devices and methods are also provided.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 28, 2020
    Assignee: Sensus USA, Inc.
    Inventor: Justin Rorke Buckland
  • Patent number: 10616689
    Abstract: A piezoelectric sounding component includes a diaphragm that includes a metal plate and a piezoelectric body formed on the metal plate. A casing includes a bottom wall and side walls defining an open sound chamber. The casing also includes a supporting portion on which the diaphragm is supported to cover the open end of the chamber. A terminal is formed on the casing and serves to apply voltage to the diaphragm. An elastic adhesive fixes the diaphragm to the supporting portion and a conductive adhesive is formed on the elastic adhesive and electrically connects the terminal and the diaphragm. An elastic sealing material forms a frame-like sealing portion that seals a gap between outer peripheral edges of the diaphragm and an inner surfaces of the casing. The elastic sealing material also used to cover at least part of an exposed surface of the piezoelectric body to form a protective portion that protects the surface of the piezoelectric body. The protective portion contacts the sealing portion.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 7, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kazuchika Yamada, Masakazu Yamauchi, Yuko Yokoi
  • Patent number: 10605915
    Abstract: An ultrasonic device includes an element substrate provided with an ultrasonic transducer array having a plurality of ultrasonic transducers arranged in an array, and having a first surface and a second surface located on an opposite side to the first surface, a terminal part disposed on the first surface of the element substrate, and outside the ultrasonic transducer array in a planar view viewed from a normal direction of the first surface, and electrically connected to the ultrasonic transducers, and a reinforcing plate disposed on the second surface of the element substrate in an area overlapping the terminal part in the planar view, and higher in bending rigidity than the element substrate.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: March 31, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Kanechika Kiyose, Hikaru Iwai
  • Patent number: 10609490
    Abstract: A piezoelectric sounding component includes a diaphragm that includes a metal plate and a piezoelectric body formed on the metal plate. The diaphragm bends and vibrates according to application of voltage to the piezoelectric body. A casing that includes a bottom wall, side walls, and a supporting portion to support the diaphragm in inside edge portions of the side walls. The side walls extending from edges of the bottom wall in a thickness direction and includes a first wall, a second wall positioned to face the first wall, and a third wall positioned between the first wall. Two or more terminals that are formed on the first wall or the third wall serve to apply voltage to the diaphragm. Two or more elastic adhesives join the side walls and the diaphragm between the two or more terminals and the diaphragm. Two or more conductive adhesives are formed on the two or more elastic adhesives and join the two or more terminals and the diaphragm.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: March 31, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Junichi Murakami, Masakazu Yamauchi
  • Patent number: 10587242
    Abstract: An acoustic wave filter includes a substrate, a first resonator disposed on the substrate, a second resonator disposed on the substrate to be spaced apart from the first resonator, a connector electrically connecting the first and second resonators, and a variable capacitor formed in the connector to tune a pass band frequency of the acoustic wave filter.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: March 10, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Won Kyu Jeung
  • Patent number: 10575820
    Abstract: 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. The back surface of the piezoelectric wafer may be connected with the front surface of the high impedance backing layer, and the back surface of the high impedance backing layer may be connected with the front surface of the low impedance backing layer.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Shenzhen Mindray Bio-Medical Electronics Co., Ltd.
    Inventors: Kang Si, Fei Wu, Zhenyu Chen
  • Patent number: 10547286
    Abstract: A filter may include a plurality of bulk acoustic wave resonators including one or more series resonators and one or more shunt resonators formed by a first electrode, a piezoelectric layer, and a second electrode sequentially stacked on a substrate, a cap accommodating the plurality of bulk acoustic wave resonators therein, and one or more switches provided on the cap.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: January 28, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jung Woo Sung, Sung Tae Kim, Won Kyu Jeung
  • Patent number: 10541669
    Abstract: 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 other along an outer circumference portion of the active region.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: January 21, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae Kyung Lee, Hwa Sun Lee, Hyun Min Hwang, Moon Chul Lee, Sung Sun Kim, Tae Yoon Kim
  • Patent number: 10541668
    Abstract: An acoustic resonator and a method of manufacturing the same are provided. The acoustic resonator includes a resonating part including a first electrode, a second electrode, and a piezoelectric layer; and a plurality of seed layers disposed on one side of the resonating part.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: January 21, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ran Hee Shin, Tae Kyung Lee, Sung Han, Yun Sung Kang, Sung Sun Kim, Jin Suk Son, Jeong Suong Yang, Hwa Sun Lee, Eun Tae Park
  • Patent number: 10497748
    Abstract: An ultrasonic sensor pixel includes a substrate, a piezoelectric micromechanical ultrasonic transducer (PMUT) and a sensor pixel circuit. The PMUT includes a piezoelectric layer stack including a piezoelectric layer disposed over a cavity, the cavity being disposed between the piezoelectric layer stack and the substrate, a reference electrode disposed between the piezoelectric layer and the cavity, and one or both of a receive electrode and a transmit electrode disposed on or proximate to a first surface of the piezoelectric layer, the first surface being opposite from the cavity. The sensor pixel circuit is electrically coupled with one or more of the reference electrode, the receive electrode and the transmit electrode and the PMUT and the sensor pixel circuit are integrated with the sensor pixel circuit on the substrate.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: December 3, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Hrishikesh Vijaykumar Panchawagh, Suryaprakash Ganti, Kostadin Dimitrov Djordjev, David William Burns, Timothy Alan Dickinson, Donald William Kidwell, Jr., Ravindra Vaman Shenoy, Jon Bradley Lasiter, Hao-Yen Tang, Yipeng Lu
  • Patent number: 10478857
    Abstract: An ultrasonic piezoelectric transducer device includes a transducer array consisting of an array of vibrating elements, and a base to which the array of vibrating elements in the transducer array are attached. The base include integrated electrical interconnects for carrying driving signals and sensed signals between the vibrating elements and an external control circuit. The base can be an ASIC wafer that includes integrated circuitry for controlling the driving and processing the sensed signals. The interconnects and control circuits in the base fit substantially within an area below the array of multiple vibrating elements.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: November 19, 2019
    Assignee: FUJIFILM Dimatix, Inc.
    Inventors: Andreas Bibl, Hung-fai Stephen Law, Kevin von Essen, Mats G. Ottosson
  • Patent number: 10463394
    Abstract: There is provided a medical device whose occupied space is reduced. According to an aspect of the present invention, a medical device (1) adjusts a position of a medical instrument including a rod-like insertion unit (201) for being inserted into a body. The medical device includes an ultrasonic actuator that holds the insertion unit of the medical instrument, and that displaces or rotates the insertion unit with respect to the ultrasonic actuator, and an actuator fixing unit (101 and 102) that fixes a position of the ultrasonic actuator to a surgical site.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: November 5, 2019
    Assignees: SHARP KABUSHIKI KAISHA, PUBLIC UNIVERSITY CORPORATION HIROSHIMA CITY UNIVERSITY
    Inventors: Masaki Hamamoto, Kazuhiro Taniguchi, Masazumi Okajima
  • Patent number: 10445547
    Abstract: An electronic device including an array of ultrasonic transducers for generating and receiving ultrasonic signals, and an acoustic coupling layer overlying the array of ultrasonic transducers, where the ultrasonic signals are propagated through the acoustic coupling layer.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: October 15, 2019
    Assignee: InvenSense, Inc.
    Inventor: Julius Ming-Lin Tsai
  • Patent number: 10397707
    Abstract: A piezoelectric sounding component includes a diaphragm that includes a metal plate and a piezoelectric body formed on the metal plate. The diaphragm bends and vibrates according to application of voltage to the piezoelectric body. A casing includes a bottom wall, side walls which, in combination with the diaphragm define a sound chamber. The diaphragm is supported by a support portion formed in the casing such that outer peripheral edges of the diaphragm are spaced from inner surfaces of the casing. A terminal is located on the casing and is electrically connected to the diaphragm. At least two elastic adhesives join the diaphragm to the casing and respective conductive adhesives extend over its associated elastic adhesive from the diaphragm to a respective terminal. A frame-like sealing portion seals a gap between the outer peripheral edge of the diaphragm and the inner surfaces of the casing.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: August 27, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yuko Yokoi, Masakazu Yamauchi, Junichi Murakami, Kazuchika Yamada, Takaaki Kaji
  • Patent number: 10391510
    Abstract: With the use of a low cost microphone mounted at each nozzle, a sound signature of the nozzles may be captured and stored to be used as a continuous indicator of any changes in the flow rate of the nozzles. By measuring changes in sound at each nozzle, it is possible to determine the change in flow before a change in pressure manifests into a problem in the system. The change in sound will oftentimes be significant for plugged nozzles, or nozzles that have excessive wear and flow at too high of a rate. The invention has the advantage of being relatively low cost with ceramic microphones, for example, and with little or no moving parts required. A closed loop control system may be included to compensate for nozzle degradation.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: August 27, 2019
    Assignee: CNH Industrial America LLC
    Inventors: John Posselius, Tim Stombaugh
  • Patent number: 10365718
    Abstract: A tactile feedback device includes a vibrating device and a touch sensor. The vibrating device comprises a flexible diaphragm and a film which deforms in response to the application of electrical energy thereto, the film being attached to the flexible diaphragm at two spaced locations with a major surface of the film facing a major surface of the flexible diaphragm. The vibrating device further includes a spacer located between the two spaced locations and ensuring that the major surface of the flexible diaphragm is spaced from the major surface of the film. The touch sensor is coupled to the diaphragm and generates an output signal in response to a touch operation. Means are provided to apply electrical energy to the film in response to the output signal.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: July 30, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Junichi Hashimoto
  • Patent number: 10363574
    Abstract: A piezoelectric element which includes a vibrating film, a piezoelectric body disposed on one surface of the vibrating film, and a horizontal electrode structure in which electrodes are disposed at a predetermined gap therebetween on the piezoelectric body. The vibrating film includes a recess portion in a portion corresponding to the predetermined gap in plan view.
    Type: Grant
    Filed: October 1, 2016
    Date of Patent: July 30, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hiromu Miyazawa, Hiroshi Ito, Tomoaki Nakamura, Masayoshi Yamada, Jiro Tsuruno, Tsukasa Funasaka
  • Patent number: RE48051
    Abstract: The present disclosure provides a probe for an ultrasonic diagnostic apparatus. The probe includes a backing layer, a piezoelectric layer disposed on one side of the backing layer, a matching layer disposed on one side of the piezoelectric layer, a signal connector disposed inside the backing layer to transfer a signal to the piezoelectric layer, and a ground connector disposed outside the signal connector. The backing layer, the piezoelectric layer and the matching layer are sequentially disposed and the signal connector is electrically connected to the piezoelectric layer at the other side of the piezoelectric layer. The probe for an ultrasonic diagnostic apparatus includes a stack of the backing layer, the piezoelectric layer and the matching layer, in which the piezoelectric layer is formed to have a certain curvature, thereby achieving performance improvement through minimization of interference from a signal connector and a ground connector.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: June 16, 2020
    Assignee: Samsung Medison Co., Ltd.
    Inventors: Gil Ju Jin, Jae Yk Kim, Jin Woo Jung