With Mechanical Energy Coupling Means Patents (Class 310/328)
  • Patent number: 11329576
    Abstract: A power generating element is provided that includes first and second plate-like structures, a pedestal that supports the first plate-like structure, and first and second piezoelectric elements that generate charges on the basis of the deflections of the two plate-like structures. A base end portion of the first plate-like structure is connected to the pedestal, and a direction from the base end portion toward the tip end portion of the first plate-like structure is a Y-axis positive direction. A base end portion of the second plate-like structure is connected to the tip end portion of the first plate-like structure via a connection body, and a direction from the base end portion toward the tip end portion of the second plate-like structure is a Y-axis negative direction.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 10, 2022
    Inventors: Kazuhiro Okada, Miho Okada
  • Patent number: 11292253
    Abstract: A piezoelectric printing device includes a piezoelectric plate and a substrate with at least one row of drop ejectors. Each drop ejector includes a pressure chamber on a first side of the substrate and a nozzle on a second side of the substrate. The piezoelectric plate is attached to the substrate by a bonding layer. A first electrode layer is disposed on a first surface of the piezoelectric plate that is proximate to the first side of the substrate. The first electrode layer includes signal lines and ground traces corresponding to each pressure chamber. A second electrode layer including signal input pads and ground return pads is disposed on the first side of the substrate. Signal lines and ground traces in the first electrode layer are electrically connected to signal input pads and ground return pad(s) respectively on the second electrode layer through solder joints.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: April 5, 2022
    Inventors: Yonglin Xie, Xiaofei Zhang, Huiqiang Lv, Jianbin Lu, Xuan Du
  • Patent number: 11292030
    Abstract: A piezoelectric micromachined ultrasound transducer (PMUT) is disclosed. The device consists of a flexible membrane that is connected to a rigid substrate via flexures. The flexures are defined by slots etched through the perimeter of the membrane. These features release the stress present on the structural layers of the membrane, making it less sensitive to residual stress. The flexures are designed to act as torsion springs so that the membrane's vibration mode shape is highly curved in the piezoelectric actuation area, thereby increasing the electromechanical coupling.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: April 5, 2022
    Assignee: CHIRP Microsystems Inc.
    Inventors: David Horsley, Andre Guedes, Stefon Shelton, Richard Przybyla
  • Patent number: 11283374
    Abstract: A method is provided for manufacturing a dielectric elastomer transducer including a dielectric elastomer layer and electrode layers sandwiching the elastomer layer. The elastomer layer when stretched exhibits a stress-strain curve having: a low strain and high elasticity region; a low elasticity region; and a high strain region. The method includes: a pre-stretching process to reduce hysteresis in elastic behavior of the elastomer layer by stretching the elastomer layer one or more times under a load as heavy as a first load before the electrodes are provided, each stretching causing the elastomer layer to undergo a tension falling in the low elasticity region; and a dielectric elastomer layer fixing process including applying a second load smaller than the first load to the elastomer layer so as to fix the elastomer layer to a support member under a second tension smaller than the first tension.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 22, 2022
    Inventors: Seiki Chiba, Mikio Waki, Masakatsu Hotta, Kazuhiro Oishi
  • Patent number: 11259577
    Abstract: A brace for a part of a body includes a first conductive fiber associated with a first polarity, and a second conductive fiber associated with a second polarity different from the first polarity. The second fiber is woven together with the first fiber and insulated from the first fiber. The brace also includes a selectively electrically activated cross-linking agent between the first and second fibers. The agent is constructed to cross-link in a first active mode when the first and second fibers are electrified and is constructed to not cross-link in a second inactive mode when the first and second fibers are not electrified. The brace surrounds a body part, such as a knee or neck. The agent can include an ER fluid and/or EAP. A brace system includes a selectively electrically activated brace for the part of the body.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: March 1, 2022
    Assignee: SoftArmour LLC
    Inventors: David Amos Ben-Meir, Allan Sanford, Christen Egan, Gibran Esquenazi, Richard Hutchison, Nathaniel Mowell, Russell Scott Miller
  • Patent number: 11264921
    Abstract: Servomotor (1) comprising: —a base body (10), —an actuator body (20) which is arranged on the base body (10)—a drive arrangement (40) which is coupled to a drive section of the actuator body (20) and, when the drive arrangement (40) is activated, brings about a movement of the drive section of the actuator body (20) in one of two opposing circumferential directions on the basis of this coupling, —a rotational guide (50) with which the actuator body (20) is rotatably guided on the base body (10) and by which the movement of the drive section of the actuator body (20) is converted into a rotational movement of the actuator body (20), —a resetting arrangement (80) which couples the actuator body (20) and the base body (10) to one another and applies a resetting force between them, which resetting force opposes the actuating movement of the actuator body (20), —a magnet-compensation device (90) which reduces or cancels out the resetting force applied by the resetting device (80).
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: March 1, 2022
    Inventors: Harry Marth, Wolfram Stark
  • Patent number: 11251004
    Abstract: A vacuum circuit breaker comprises a vacuum interrupter operable between a closed state and an open state, and an actuator. The actuator comprises a piezoelectric driving element that is expandable and contractable along an expansion axis in response to an electrical input signal. The actuator further comprises a mechanical amplifying structure extendable along an actuation axis and being mechanically coupled to the piezoelectric driver such that expansion or contraction of said piezoelectric driving element causes the amplifying structure to extend or retract along the actuation axis. The mechanical amplifying structure is coupled to the vacuum interrupter for operating the vacuum interrupter between said closed and open states.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: February 15, 2022
    Assignee: Camlin Technologies Limited
    Inventor: Mark Muir
  • Patent number: 11239405
    Abstract: Described herein is a method of bonding a piezoelectric substrate to a support substrate to form a composite substrate. The piezoelectric substrate has one surface which is positively polarized, and a second surface which is negatively polarized. The method described herein includes the steps of bonding the positively polarized surface of the piezoelectric substrate to one surface of the support substrate by a direct bonding method.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: February 1, 2022
    Inventors: Tomoyoshi Tai, Yuji Hori, Takahiro Yamadera, Ryosuke Hattori, Kengo Suzuki
  • Patent number: 11239406
    Abstract: The present invention relates to a component (1) for generating active haptic feedback, comprising a main body (2) having first and second internal electrodes (3, 4) stacked one above another in a stacking direction (S), wherein a respective piezoelectric layer (9) is arranged between the internal electrodes (3, 4), wherein the component (1) is configured to identify a force exerted on the component (1), wherein the component (1) is configured to generate active haptic feedback if a force exerted on the component (1) is identified, and wherein the haptic feedback is generated by virtue of an electrical voltage being applied between the first and second internal electrodes (3, 4), said electrical voltage resulting in a change in length of the main body (2).
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: February 1, 2022
    Assignee: EPCOS AG
    Inventor: Franz Rinner
  • Patent number: 11223299
    Abstract: A piezoelectric motor comprises a frame having a first frame side and a second frame side; a first actuator assembly and a second actuator assembly. The first actuator assembly comprises a first piezoelectric actuator and two rollers, each of the rollers is pressed between the first piezoelectric actuator and the first frame side. The second actuator assembly comprises a second piezoelectric actuator and two rollers, each of the rollers is pressed between the second piezoelectric actuator and the second frame side. The motor further comprises at least one pre-loaded spring provided between the first actuator assembly and the second actuator assembly, pushing the first actuator assembly and the second actuator assembly against the first frame side and the second frame side, respectively.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: January 11, 2022
    Assignee: Nanomotion Ltd.
    Inventors: Alon Avital, Nir Karasikov, Roman Yasinov, Gal Peled
  • Patent number: 11195688
    Abstract: An adjusting mechanism for adjusting a deformation of a panel and an electron beam detection apparatus comprising the same are disclosed, the adjusting mechanism including: a support plate, which is provided opposite to the panel, with a periphery of the support plate being in positive fit with a periphery of the panel; and at least one screw set, each screw set comprising: at least one first screw, each first screw penetrating through the support plate, and in turn being connected to the panel by being screwed into the panel; and at least one second screw, each second screw being screwed to penetrate through the support plate and to abut against the panel; the support has its structural rigidity larger than a structural rigidity of the panel.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: December 7, 2021
    Assignee: Zhongke Jingyuan Electron Limited, Beijing (CN)
    Inventor: Lei Jiang
  • Patent number: 11190881
    Abstract: Systems and techniques are provided for a piezoelectric transducer. A base plate includes a first electrical contact and a second electrical contact. A transduction element is mounted directly on the base plate and electrically connected to the first electrical contact. A spacer includes a via. The via includes electrically conductive material. The spacer is mounted on the base plate around the transduction element and the electrically conductive material of the via is electrically connected to the second electrical contact. A diaphragm is mounted on the spacer and on the transduction element.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: November 30, 2021
    Assignee: uBeam Inc.
    Inventors: Trevor Niblock, Iman Shahosseini, Wade Smith
  • Patent number: 11183626
    Abstract: A magnetostrictive alternator configured to convert pressure waves into electrical energy is provided. It should be appreciated that the magnetostrictive alternator may be combined in some embodiments with a Stirling engine to produce electrical power. The Stirling engine creates the oscillating pressure wave and the magnetostrictive alternator converts the pressure wave into electricity. In some embodiments, the magnetostrictive alternator may include aerogel material and magnetostrictive material. The aerogel material may be configured to convert a higher amplitude pressure wave into a lower amplitude pressure wave. The magnetostrictive material may be configured to generate an oscillating magnetic field when the magnetostrictive material is compressed by the lower amplitude pressure wave.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 23, 2021
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Rodger W. Dyson, Geoffrey A. Bruder
  • Patent number: 11163364
    Abstract: The present disclosure provides a touch control substrate, a touch screen, an electronic device, and a touch control method. The touch control substrate comprises a base substrate, and a plurality of touch control units on the base substrate in an array; each touch control unit comprises a touch control electrode and a sensing structure electrically connected to the touch control electrode; and in response to being touched, the touch control electrode transmits voltage to the sensing structure, to cause tactility change of the sensing structure.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: November 2, 2021
    Inventor: Rui Xu
  • Patent number: 11150734
    Abstract: Disclosed herein are structures, devices, methods and systems for providing haptic output on an electronic device. In some embodiments, the electronic device includes a display portion, a housing pivotally coupled with the display portion and comprising a glass sheet that defines an input surface of the electronic device. The input surface can define a keyboard having a set of key regions arranged along the glass sheet. The electronic device may also include a haptic mechanism positioned beneath a key region of the set of key regions that includes a substrate defining a beam structure having first and second fixed ends, a spacer positioned along a first side of the beam structure and a piezoelectric element positioned along a second side of the beam structure. The piezoelectric element can be configured to deflect the beam structure to provide haptic output along the input surface.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: October 19, 2021
    Assignee: Apple Inc.
    Inventors: Alex J. Lehmann, Juan Pu, Paul X. Wang, Qiliang Xu, Zheng Gao
  • Patent number: 11139757
    Abstract: A rotating piezoelectric motor including a piezoelectric actuator including a resonator having a pair of arms connected at one of their ends in a connection area, the other two ends being free, a passive element including a cylindrical part extending substantially orthogonally to the resonator and passing between the free ends of the arms, the cylindrical part being rotatable by friction of the free ends, the passive element including: a lower and upper truncated cones, the small bases of the cones being arranged facing each other and on either side of the resonator, the cylindrical part of the passive element at least partly axially traversing the cones, the upper truncated cone being movable along the cylindrical part, and at least one of the cones being integral in rotation with the cylindrical part, a device for holding the lateral surfaces of the cones in contact with each of the free ends of the arms of the resonator.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: October 5, 2021
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Pascal Lagorgette, Pascal Meyer
  • Patent number: 11123781
    Abstract: The invention relates to a roll stand (2) for rolling, in particular cold-rolling, metal products, comprising at least one actuator (16) which can be actuated for actively damping vibrations in the roll stand (2), and at least one supporting roll (10) which is non-adjustable or can be adjusted exclusively via a readjusting device for pass line adjustment (13) of the roll stand (2) for supporting a working roll (5) and/or intermediate roll of the roll stand (2), wherein the supporting roll (10) is guided at the ends via a respective bearing unit (11) on a rack (8) of the roll stand (2). In order to enable an optimal active damping of vibrations in a roll stand (2) of this type with low engineering effort, the invention proposes that the supporting roll (10) is supported on the actuator (16) via at least one bearing unit (11) and that the actuator (16) is supported on a section (17) of the rack (8) either directly or indirectly via at least one component (14) of the readjustment device (13).
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: September 21, 2021
    Assignee: SMS GROUP GMBH
    Inventors: Matthias Krueger, Sebastian Richard, Karsten Rues, Michael Breuer
  • Patent number: 11126812
    Abstract: The invention provides a fingerprint sensor including a sensing array. The sensing array includes a plurality of sensing units to form a plurality of sensing regions arranged in an array. Each of the plurality of sensing regions includes at least one column of sensing units. A first part of the plurality of sensing regions receives a power signal to perform fingerprint sensing. A second part of the plurality of sensing regions does not receive a power signal. Therefore, the fingerprint sensor of the invention can provide a fast and energy-saving large-area fingerprint sensing effect.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: September 21, 2021
    Assignees: Egis Technology Inc., Igistec Co., Ltd.
    Inventors: Ching-Ho Hung, Chung-Yi Wang
  • Patent number: 11112297
    Abstract: Provided are resonators, a resonator system including the resonators, and a method of manufacturing the resonators. The resonator includes a vibration beam configured to vibrate in response to an external signal, a sensing unit configured to detect the movement of the vibration beam, and a lumped mass unit including a base unit that contacts the vibration beam and a wing unit arranged separately from the vibration beam on the base unit.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 7, 2021
    Inventors: Yongseop Yoon, Sungchan Kang, Cheheung Kim, Choongho Rhee, Hyeokki Hong
  • Patent number: 11112592
    Abstract: According to some embodiments of the present invention, a fine focus microscope includes an objective lens for collecting light from an object being imaged, and a tube lens for forming a first image from light received from the objective lens. The fine focus microscope further includes a fine focus lens for forming a second image from the first image, and an eyepiece for forming a third image from the second image, wherein the third image is viewable by a user. The fine focus microscope further includes a field lens for directing light from the second image to the eyepiece, and a positioning system mechanically coupled to the fine focus lens, the eyepiece, and the field lens. The positioning system changes a position of the fine focus lens, the eyepiece, and the field lens with respect to the objective lens to provide a change in focus of the object being imaged.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: September 7, 2021
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventor: Martin Feldman
  • Patent number: 11109161
    Abstract: The present invention provides a sound device, which includes a bottom plate, a support fixed to the bottom plate, a frame arranged on the support, and a diaphragm fixed to the frame. The sound device further includes a first piezoelectric ceramic sheet and a second piezoelectric ceramic sheet that are disposed separately on the support, and the first piezoelectric ceramic sheet and the second piezoelectric ceramic sheet are respectively provided with a transmission member abutting against the diaphragm. The sound device in the present disclosure can increase a driving force, increase a vibration amplitude, enhance a product sensitivity, broaden a response range, increase a driving fulcrum, improve a vibration balance, and avoid a product distortion.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 31, 2021
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Bo Xiao, Xiaodong Liu, Ronglin Linghu
  • Patent number: 11101750
    Abstract: A piezoelectric stepper drive includes a piezoelectric drive apparatus with at least two drive sections, each acted upon by at least two piezoelectric actuators, and a driven member which is advanced by at least one of the drive sections when control voltages are applied to the actuators. The drive apparatus is configured approximately in the shape of a triangle, at the tip of which the drive sections are arranged. At least one of the drive sections is biased against the driven member, in the absence of control voltages applied to the actuators, such that the drive section blocks advance of the driven member, where each of the drive sections is mounted individually resilient relative to a base of the triangle.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: August 24, 2021
    Inventors: Harry Marth, Dominik Bocskai
  • Patent number: 11085861
    Abstract: An impactor, system and method for performing real-time measurements of particles in aerosol gases. The impactor comprises a plurality of cascading stages having impaction plates, mass-measurement mechanisms retained on the impaction plates, and a nozzle plate. A signal line associated with each of the plurality of cascading stages is configured to relay signals from the mass-measurement mechanism of the associated stage to a computer-based system configured to receive the transmitted signals from the signal lines, and to correlate changes in the resonant frequencies to particle concentrations in real time.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: August 10, 2021
    Inventors: Modi Chen, Lin Li, Virgil Alan Marple, Amir A. Naqwi, Francisco J. Romay, Daryl L. Roberts, Benjamin Y. H. Liu
  • Patent number: 11088314
    Abstract: The present disclosure provides an ultrasonic transducer and a method for manufacturing an ultrasonic transducer, a display substrate and a method for manufacturing a display substrate. The method for manufacturing the ultrasonic transducer includes: forming a via hole in a substrate; forming a structural layer on a side of the substrate, the structural layer cover the via hole; and etching the structural layer from a side of the substrate away from the structural layer by using the substrate formed with the via hole as a blocking layer, to form a cavity at a position of the structural layer corresponding to that of the via hole.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: August 10, 2021
    Inventor: Lei Zhao
  • Patent number: 11081638
    Abstract: A piezoelectric element includes a piezoelectric material layer and an electrode layer, wherein the piezoelectric material layer and the electrode layer are stacked on top of each other, the piezoelectric material layer includes a barium titanate-based material, and two coercive fields Ec1 and Ec2 of the piezoelectric element have the same sign and satisfy (|Ec2|?|Ec1|)?8 kV/cm.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: August 3, 2021
    Inventors: Jumpei Hayashi, Makoto Kubota, Shinya Koyama, Tatsuo Furuta, Kanako Oshima
  • Patent number: 11065644
    Abstract: A method for exciting sound-wave producing transducers (7) which have operating frequencies defining a transducer frequency range, in which a generator (9) produces an electrical excitation signal for the transducers (7), these electrical excitation signal being fed to the transducers (7), wherein the generator (9) carries out frequency sweeps in a frequency sweep range between a minimum frequency (fmin) and a maximum frequency (fmax) with an adjustable sweep rate, with a target frequency (fZiel) being defined within said frequency sweep range, this method being characterized in that the minimum frequency (fmin), the maximum frequency (fmax) and the target frequency (fZiel) are selected in such a way that a first frequency difference (?f1) between the minimum frequency (fmin) and the target frequency (fZiel) differs in terms of magnitude from a second frequency difference (?f2) between the maximum frequency (fmax) and the target frequency (fZiel) within a number of frequency sweeps, and wherein the minimum fr
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 20, 2021
    Assignee: Weber Ultrasonics GmbH
    Inventor: Ralf Broszeit
  • Patent number: 11065348
    Abstract: A microfluidic device for generating microbubbles includes a substrate and a microfluidic channel embedded in the substrate. The microfluidic channel includes a plurality of fluid inlets, at least one bubble formation outlet having a nozzle with an adjustable diameter, and a flow focusing junction in fluid communication with the plurality of fluid inlets and the bubble formation outlet. A method for mass producing monodisperse microbubbles with a microfluidic device includes supplying a flow of dispersed phase fluid into a first fluid inlet of a microfluidic channel, supplying a flow of continuous phase fluid into a second fluid inlet of the microfluidic channel, and adjusting a diameter of a nozzle to obtain a plurality of monodisperse microbubbles having a specified diameter.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: July 20, 2021
    Assignee: The Trustees of the University of Pennsylvania
    Inventors: Daeyeon Lee, Francesco Angile, Kevin Vargo, Daniel A. Hammer, Chandra M. Sehgal
  • Patent number: 11060511
    Abstract: Artificial muscles comprising a body of dielectric elastomer, wherein the body contains a pair of microfluidic networks are presented. Each microfluidic network includes a plurality of channels fluidically coupled via a manifold. The channels of the microfluidic networks are interdigitated and filled with conductive fluid such that each set of adjacent channels functions as the electrodes of an electroactive polymer (EAP) actuator. By using the manifolds as compliant wiring to energize the electrodes, artificial muscles in accordance with the present disclosure mitigate some or all of the reliability problems associated with prior-art artificial muscles.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: July 13, 2021
    Assignees: California Institute of Technology, The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Emil P. Kartalov, Axel Scherer
  • Patent number: 11061516
    Abstract: A flexible touch panel includes a flexible substrate bent in a first direction, and a touch sensor unit disposed on the flexible substrate, the touch sensor unit including a bridge extending in a second direction intersecting the first direction.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: July 13, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyung Chul Kim, Jung Mok Park
  • Patent number: 11064299
    Abstract: A MEMS structure that includes: a substrate having an opening; a diaphragm arranged opposite the opening in the substrate; a plurality of anchors securing the diaphragm to the substrate or to another component; and a fixed membrane surrounding the diaphragm over a slit. The outline of the diaphragm protrudes toward the anchors and includes a predetermined intersecting structure that when viewed from the normal to the diaphragm, the diaphragm protrudes toward the anchors in at least one location on the diaphragm between two intersection points of the outline of the diaphragm and the outline of the opening in the substrate. The intersecting structure is configured such that the distance between the two intersection points is greater than the width of the diaphragm at a location closest to an anchor.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: July 13, 2021
    Assignee: Omron Corporation
    Inventors: Ayumu Murakami, Tadashi Inoue, Yasuhiro Horimoto
  • Patent number: 11063205
    Abstract: A vibration actuator includes an elastic body on which at least one projection is formed and a vibrating body including an electromechanical conversion device, and drives a driven member that is in contact with a contact portion of the projection by causing an end portion of the projection to perform an ellipsoidal movement in response to a combination of two vibration modes generated in the vibrating body when an alternating driving voltage is applied. The elastic body is formed integrally with the projection and a bonding portion between the projection and the electromechanical conversion device. A space is provided between the contact portion and the electromechanical conversion device to which the projection is bonded. The spring portion is provided between the bonding portion and the contact portion and causes the projection to exhibit a spring characteristic when the contact portion is pressed by the driven member.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 13, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuki Oda, Shinji Yamamoto, Akio Atsuta
  • Patent number: 11053899
    Abstract: A positioning feature includes a first member so that in an embodiment where the pins of a connector are perpendicular to a main axis, an incorrect angular orientation is prevented by the positioning feature that would contact one of the pins and, a correct angular orientation is assured by the engagement of the first member between the pins.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: July 6, 2021
    Inventors: George A. Meek, Thomas Hagon
  • Patent number: 11050363
    Abstract: A frictional electric generator, a device including the frictional electric generator, and a method for manufacturing the frictional electric generator are provided. The frictional electric generator includes a first frictional unit and a second frictional unit arranged opposite to each other. The first frictional unit includes a first output electrode, and the second frictional unit includes a second output electrode. A composite layer is arranged in at least one of the first frictional unit or the second frictional unit, and is provided with a surface having concave-convex nanostructures as a frictional surface. The first output electrode and the second output electrode are configured to form a capacitor.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: June 29, 2021
    Inventors: Haifeng Hu, Liuyue Yin, Zhanqi Xu, Weijie Ma, Zhi Du
  • Patent number: 11038441
    Abstract: A piezoelectric motor with form-locked drive mechanism avoiding step losses and undefined step sizes caused by environmental conditions such as temperature, surface quality and air humidity by engaging actuator teeth interacting with the toothed structure of a driven rack.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: June 15, 2021
    Assignee: STRATEC Biomedical AG
    Inventors: Tibor Horvarth, Jens Großmann
  • Patent number: 11031883
    Abstract: A method of manufacturing an actuator includes a first electrode layer forming step, a dielectric elastomer layer forming step, and a second electrode layer forming step, and obtains the actuator in which dielectric elastomer layers and electrode layers have been concentrically laminated. In the first electrode layer forming step, an electrode material is provided to an outer circumferential surface of a shaft section to form the electrode layer. In the dielectric elastomer layer forming step, a sheet-like or paste-like dielectric elastomer material is provided to an outer circumferential surface of the electrode layer to form the dielectric elastomer layer. In the second electrode layer forming step, the electrode material is provided to an outer circumferential surface of the dielectric elastomer layer to form the electrode layer.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: June 8, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Masahiko Osada
  • Patent number: 11007774
    Abstract: A droplet forming device is provided. The droplet forming device includes a liquid holder configured to hold a liquid, a film having a discharge hole, two or more vibration generators configured to vibrate the film, and a driver configured to apply a driving signal to the vibration generators. One or more of the vibration generators are disposed in each region on the film where a polarity of bending moment differs.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: May 18, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuzuru Kuramochi, Daisuke Takagi, Satoshi Okano, Takahiko Matsumoto, Koichi Muramatsu, Satoshi Nakazawa, Ryuya Mashiko, Manabu Seo, Hidekazu Yaginuma, Mayuko Murano
  • Patent number: 10964877
    Abstract: A piezoelectric element includes a first electrode layer, a piezoelectric layer, and a second electrode layer. The first electrode layer, the piezoelectric layer, and the second electrode layer are stacked in sequence on one another. The first electrode layer has a first part overlapping the piezoelectric layer in a plan view, and a second part at least partially separated from the first part and not overlapping the piezoelectric layer in the plan view. The second electrode layer has a third part overlapping the piezoelectric layer in the plan view, and a fourth part separated from the third part. The fourth part is in contact with the first part and the second part.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: March 30, 2021
    Inventor: Koji Ohashi
  • Patent number: 10924038
    Abstract: A capacitive actuator motor according to an embodiment of the present invention includes a capacitive actuator having six actuator units and a motor output cam having a periodic shape portion. Each of the six actuator units includes a buckling displacement expansion mechanism configured to convert an output of a piezoelectric element and urge an output joint in a predetermined output direction and a preload adjustment spring configured to urge an output joint with a certain characteristic in a direction in which the periodic shape portion and the output joint come into contact with each other.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 16, 2021
    Inventor: Shinichiro Tsukahara
  • Patent number: 10921349
    Abstract: Embodiments of the invention include a current sensing device for sensing current in an organic substrate. The current sensing device includes a released base structure that is positioned in proximity to a cavity of the organic substrate and a piezoelectric film stack that is positioned in proximity to the released base structure. The piezoelectric film stack includes a piezoelectric material in contact with first and second electrodes. A magnetic field is applied to the current sensing device and this causes movement of the released base structure and the piezoelectric stack which induces a voltage (potential difference) between the first and second electrodes.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: February 16, 2021
    Assignee: Intel Corporation
    Inventors: Georgios C. Dogiamis, Adel A. Elsherbini, Shawna M. Liff, Johanna M. Swan, Jelena Culic-Viskota, Thomas L. Sounart, Feras Eid, Sasha N. Oster
  • Patent number: 10913426
    Abstract: Embodiments of the present invention provide an automobile including a processor and a sensing apparatus, and the sensing apparatus is installed on a part that is of the automobile and that may be in contact with a hand of a driver, and includes a transmitter and a receiver. The transmitter sends a sound wave signal to the hand of the driver, and the receiver receives a reflected sound wave signal reflected by the hand of the driver, converts the reflected sound wave signal to an electrical signal, and sends the electrical signal to the processor. The processor analyzes the electrical signal to obtain a feature of the reflected sound wave signal, and recognizes an identity of the driver based on the feature of the reflected sound wave signal.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: February 9, 2021
    Inventors: Xinyu Zhao, Heshuai Si, Chengping Liu, Yunzhe Chen, Zeshi Zhang
  • Patent number: 10906315
    Abstract: An inkjet printhead includes: a rigid elongate manifold having at least one ink supply channel and a lower surface with a longitudinal ink cavity defined therein, the longitudinal ink cavity having a roof and sidewalls extending between the roof and the lower surface; a metal film sealingly attached to the lower surface so as to bridge across the longitudinal ink cavity, the film having a plurality of film apertures for receiving ink from the longitudinal ink cavity; and a plurality of printhead chips attached to the film, each printhead chip receiving ink from the longitudinal ink cavity via the film apertures. A plurality of through-holes are defined in the manifold to provide fluid communication between the ink supply channel and the longitudinal ink cavity. The through-holes extend perpendicular to the ink supply channel and the longitudinal ink cavity.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: February 2, 2021
    Inventors: Jason Thelander, David Burke, Andrew Thomas
  • Patent number: 10903414
    Abstract: The invention is directed to a device and to a method for generating an oscillatory motion of a mass, wherein an oscillating electrical signal and/or an operation power is wirelessly transmitted in order to facilitate retrofitting the device.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: January 26, 2021
    Assignee: Dr. Hielscher GmbH
    Inventors: Harald Hielscher, Thomas Hielscher, Holger Hielscher
  • Patent number: 10883332
    Abstract: A downhole seal includes a field responsive shape changeable material configured as a layer having a first surface and a second surface, a first field generating electrode disposed in operable communication with the first surface, and a second field generating electrode disposed in operable communication with the second surface.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 5, 2021
    Inventors: Lei Zhao, Zhiyue Xu, Guijun Deng
  • Patent number: 10865752
    Abstract: A fuel injection valve of a fuel injection system includes a connector piece that is insertable at least partly into a receiving space of a connector body of a fluid-conveying component. In the installed state a support part is disposed on the connector piece, and the connector piece is mounted via the support part on the connector body. The support part has a spherical support surface with which the support part braces at least indirectly against the connector body in order to implement the mounting of the connector piece directly or indirectly on the connector body.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 15, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Rehwald, Prakash Gurushantappa Yadawad, Rao Bharath Narahari, Sunil Makarabbi
  • Patent number: 10855206
    Abstract: Disclosed is a piezoelectric rotary drive for a shaft, which includes a piezoelectric actuator, a deformable frame that can be coupled with a coupling section to the shaft in a force-fit manner in order to accomplish a stick-slip drive, and a loading device which can apply a preloading force to the coupling section and/or the actuator and/or the shaft. To facilitate production and assembly, the loading device can be a leaf spring which in the relaxed state extends substantially in a plane, such as along a straight line.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: December 1, 2020
    Inventors: Reinhard Hübner, Hansjörg Luckert
  • Patent number: 10833246
    Abstract: A piezoelectric material contains ferroelectric particles and an adhesive resin. The ratio of the ferroelectric particles relative to the total mass of the ferroelectric particles and the adhesive resin is 40 mass % or greater and 98 mass % or less.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: November 10, 2020
    Assignee: SHIMANO INC.
    Inventors: Masahiko Fukuda, Yoshiyuki Watanabe, Takaya Masuda
  • Patent number: 10833245
    Abstract: A haptic stimulator includes a multilayer sheet with a piezoelectric or electroactive polymer layer adapted to mechanically deform upon application of voltage, the multilayer sheet secured to a substrate, and a source of electrical stimulation coupled to drive electrodes on the polymer layer with an AC signal to vibrate the polymer layer. In particular embodiments, the polymer contains polyvinylidene fluoride, and electrodes are patterned to control local electric fields. Another haptic stimulator has first and second electrodes with an air gap and an insulating sheet between first and second electrodes, with an AC voltage driver connecting to the electrodes. In a method of providing haptic stimulation to skin an alternating current supply drives first and second electrodes, the electrodes disposed upon either a piezoelectric or electroactive polymer sheet, vibrating the polymer layer by driving the electrodes; and coupling vibrations of the polymer layer to the sensate skin.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 10, 2020
    Inventors: Zi Chen, John X. J. Zhang, Frances Lau, Ali Israr
  • Patent number: 10825983
    Abstract: A magnetoelectric energy harvester having excellent power generation performance and a manufacturing method thereof are provided. The magnetoelectric energy harvester includes a magnetostrictive material portion including a magnetostrictive material which generates a mechanical deformation when being magnetized. The magnetoelectric energy harvester also includes a piezoelectric material portion which has a bending vibration mode and includes a piezoelectric material which produces power by receiving a mechanical deformation force from the magnetostrictive material portion.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: November 3, 2020
    Inventors: Hyung Won Kang, Seung Ho Han
  • Patent number: 10816786
    Abstract: The present invention provides, in various embodiments, a miniature movable-beam laser objective configured to fit within the very small dimensions of a standard objective. This small, portable movable-laser source allows the beam to be directed at a computer-generated target or at the spot of a focused target-designator beam.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 27, 2020
    Assignee: Hamilton Thorne, Inc.
    Inventors: Diarmaid Douglas-Hamilton, Sudha Thimmaraju, Stephen F. Fulghum, Jr., Thomas G. Kenny, Thomas G. Kenny, Jr.
  • Patent number: 10801903
    Abstract: A pressure sensor according to an aspect of the present invention comprises a plurality of piezoelectric elements that are sheet-like and laminated, wherein: the plurality of piezoelectric elements are divided into a plurality of element groups; and the plurality of element groups are connected in parallel and in each element group the piezoelectric elements are connected in series, or the plurality of element groups are connected in series and in each element group the piezoelectric elements are connected in parallel.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: October 13, 2020
    Assignee: Yamaha Corporation
    Inventors: Yukitoshi Suzuki, Mineko Kosugi