Electrostatic Patents (Class 310/309)
  • Patent number: 10418967
    Abstract: To realize a resonator element capable of obtaining sufficient electric field efficiency and securing a satisfactory element characteristic, a resonator element of the invention includes a base section and a pair of resonating arms extending from the base section. The resonator element includes recesses having a curved surface shape respectively on two side surfaces (surfaces crossing a direction in which the resonating arms resonate) of the resonating arm.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: September 17, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Naohiro Nakagawa
  • Patent number: 10398596
    Abstract: The present invention relates to a phacoemulsification handpiece, comprising a needle and a microelectromechanical system (MEMS) device, wherein the needle is coupled with the MEMS device. The phacoemulsification handpiece may further comprise a horn, wherein the horn is coupled with the needle and the MEMS device. The MEMS device is capable of generating movement of the needle in at least one direction, wherein at least one direction is selected from the group consisting of transversal, torsional, and longitudinal. The present invention also relates to a method of generating movement, comprising providing a phacoemulsification handpiece, wherein the handpiece comprises a needle and one or more MEMS devices; applying a voltage or current to the one or more MEMS devices, wherein the MEMS devices are coupled with the needle; and moving the needle in at least one direction. The present invention also relates to a vitrectomy cutter comprising one or more MEMS devices.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: September 3, 2019
    Assignee: Johnson & Johnson Surgical Vision, Inc.
    Inventor: Timothy Hunter
  • Patent number: 10396687
    Abstract: A mechanical system is provided for maintaining a desired gap between a stator electrode array and a rotor electrode array by employing repelling magnets on the inner surface of the rotor and on movable carts that support azimuthally segmented stator arrays.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: August 27, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Patent number: 10371569
    Abstract: An electrostatic capacitance type transducer includes one or more elements 2. The one or more elements each include a plurality of cell groups 14 each including a cell 1 including a first electrode 4 and a second electrode 5 arranged with a gap therebetween, the second electrode being electrically connected to a shared signal extraction electrode 15. In the cell group, each of the cells has an equal wiring length from the shared signal extraction electrode 15. The electrostatic capacitance of the plurality of cell groups, the wiring resistance between two adjacent cell groups, the number of cell groups in the element, and the central frequency of the element satisfy a predetermined relationship to increase transmission efficiency or reception sensitivity.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: August 6, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazutoshi Torashima, Takahiro Akiyama
  • Patent number: 10348219
    Abstract: A board arrangement structure includes a housing, a first board fastened to the housing, a second board arranged in parallel enabling, relative movement with respect to the first board, an electrically charged film, a counter electrode, and an output part outputting electric power generated between the electrically charged film and the counter electrode, at least one of the electrically charged film and the counter electrode being arranged at a first facing surface of the first board and the other being arranged at a second facing surface of the second board facing the first facing surface, and the first facing surface of the first board being, fastened to a reference mounting surface provided at the housing.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 9, 2019
    Assignee: CITIZEN WATCH CO., LTD.
    Inventors: Akira Izumi, Takashi Ihara, Makoto Watanabe
  • Patent number: 10340371
    Abstract: The invention relates to a modulation device created on a substrate (1), comprising at least one nanodiode in the form of a T fitted into a U, the channel (31) of said nanodiode being the leg of the T that is inserted into the U. The device is characterized in that it comprises at least one electrically conductive line (37) that passes over at least part of said channel (31).
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: July 2, 2019
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE LILLE 1—SCIENCES ET TECHNOLOGIES
    Inventors: Christophe Pierre Paul Gaquiere, Guillaume Ducournau, Marc Faucher
  • Patent number: 10312830
    Abstract: Electrostatic generator electrodes mounted on the outer surface of a fiber-composite rotor. The conducting strips are mounted with a slight tilt in angle such that the electrodes will experience no tension or compression effects as the rotor spins up or slows down. The compression would come about from effects associated with the Poisson Ratio. This change can eliminate any metal fatigue or loss of bonding that might have arisen if the electrodes were to be aligned with the axis.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: June 4, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Richard F Post, Lisle B. Hagler
  • Patent number: 10308505
    Abstract: A device preferably for use in an inertial navigation system the device having a single IC wafer; a plurality of sensors bonded to bond regions on said single IC wafer, at least one of said bond regions including an opening therein in gaseous communication with a pressure chamber associated with at least one of the plurality of said sensors; and a plurality of caps encapsulating said plurality of sensors, at least one of said plurality of caps forming at least a portion of said pressure chamber. A method of making the device is also disclosed.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: June 4, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Deborah J. Kirby, Raviv Perahia, Hung Nguyen, Frederic P. Stratton, David T. Chang
  • Patent number: 10298090
    Abstract: A geometric design of E-S generator/motor electrodes mounted on the inner surface of a fiber-composite rotor is provided. The electrode configuration is able to sustain very high g levels. The rotor may be formed of carbon-fiber wound on top of an inner E or S-glass fiber composite core. The electrode design provides the needed area to satisfy the power requirements of the storage system and utilizes a stacked wedge-like electrode array that both solves the high-g problem and results in a doubling or tripling of the electrode area, relative to that of electrodes that conform to the inner cylindrical surface of the rotor.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 21, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Patent number: 10287160
    Abstract: [Object] To provide an electrostatic device capable of improving device characteristics. [Solving Means] An electrostatic device according to an embodiment of the present technology includes an electrically conductive base material, a first conductor layer, a second conductor layer, and a bonding layer. The first conductor layer includes a first electrode portion and a first base portion and is connected to a signal line. The first base portion supports the first electrode portion and is disposed on the base material. The second conductor layer includes a second electrode portion and a second base portion and is connected to a reference potential. The second electrode portion is opposed to the first electrode portion in a first axis direction and configured to be movable relative to the first electrode portion in the first axis direction. The second base portion supports the second electrode portion and is disposed on the base material.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: May 14, 2019
    Assignee: Sony Corporation
    Inventors: Akira Akiba, Mitsuo Hashimoto, Shinya Morita, Munekatsu Fukuyama
  • Patent number: 10291152
    Abstract: Embodiments of the present invention disclose a triboelectrification device and a display device. The triboelectrification device includes at least one layered electricity generating assembly that is stacked, the at least one layered electricity generating assembly each comprising an electrode layer, an insulating layer, a metal layer and an elastomer; the electrode layer, the insulating layer, and the metal layer are arranged in sequence from above downwards, the elastomer is disposed between the electrode layer and the metal layer and is located at at least one side of the insulating layer.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: May 14, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tian Yang, Jifeng Tan, Yanbing Wu, Chunyan Ji
  • Patent number: 10259702
    Abstract: Caging structures are disclosed for caging or otherwise reducing the mechanical shock pulse experienced by MEMS device beam structures during events that may cause mechanical shock to the MEMS device. The caging structures at least partially surround the beam such that they limit the motion of the beam in a direction perpendicular to the beam's longitudinal axis, thereby reducing stress on the beam during a mechanical shock event. The caging structures may be used in combination with mechanical shock-resistant beams.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: April 16, 2019
    Assignee: MEMS Drive, Inc.
    Inventors: Xiaolei Liu, Matthew Ng, Robert Calvet, Gerardo Morabito
  • Patent number: 10256748
    Abstract: An electrostatic actuator having a stationary electrode and a fixedly cantilevered bender is described, wherein the bender includes a cantilever electrode disposed opposite to the stationary electrode in an overlapping area and being deflectable in the direction of the stationary electrode.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: April 9, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Nicolas Lange, Frank Wippermann
  • Patent number: 10243485
    Abstract: An electrostatic rotating electrical machine employs axially extending electrically conductive pegs (for example, on a stator) interacting with the least one of a comparable set of overlapping axially extending pegs on a rotor or a dielectric sleeve which experiences an induced electrostatic charge electrostatically attracted to the stator pegs. A dielectric sleeve may also encase either one or both of the rotor pegs and stator pegs to provide improved electrostatic field shaping and reduced dielectric fluid usage and mechanical susceptibility.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: March 26, 2019
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Baoyun Ge, Daniel Colin Ludois
  • Patent number: 10244171
    Abstract: A MEMS actuator including buckled flexures and a method of assembling the actuator are described. The assembled MEMS actuator includes an inner frame; an outer frame including latched electrical bars, where a first of the latched bars includes a latch protrusion secured to a corresponding latch groove of a second of the latched bars; and buckled flexures coupling the inner frame to the outer frame. The flexures are buckled during assembly of the MEMS actuator by incorporating the electrical bar latching mechanism into the design of the outer frame of the MEMS actuator. In one implementation, the MEMS actuator is assembled by providing a MEMS actuator with unbuckled flexures coupling the outer frame of the MEMS actuator to an inner frame of the MEMS actuator, where the outer frame includes unlatched electrical bars, and latching the electrical bars of the outer frame, resulting in buckled flexures.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: March 26, 2019
    Assignee: MEMS Drive, Inc.
    Inventors: Matthew Ng, Roman Gutierrez, Guiqin Wang
  • Patent number: 10232635
    Abstract: In an optical scanning device including a vibration mirror part, elastically deformable resin portions are respectively provided at both end portions in a main scanning direction on a surface of the vibration mirror part, which is an opposite surface of a reflective surface, a collision member, which has a collision surface and can collide with each of the resin portion, is provided at a side opposite to a side of the reflective surface of the vibration mirror part, and a control unit allows the vibration mirror part to swing such that each of the resin portion collides with the collision surface at least once before light beam for image data writing is deflected and scanned by the vibration mirror part, and then allows the vibration mirror part to swing in a range in which each of the resin portion does not collide with the collision surface.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: March 19, 2019
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Yuji Toyota
  • Patent number: 10234949
    Abstract: A user interface device having a user input component, a mechanical metamaterial region, one or more actuators, and a control unit is presented. The mechanical metamaterial region is located over the user input component. The one or more actuators are coupled to the mechanical metamaterial region, which has an internal structure that is mechanically alterable with the one or more actuators, and has a mechanical property that changes in response to the alteration of the internal structure by the one or more actuators. The control unit is in communication with the one or more actuators, and is configured to determine whether the user input component is to be hidden from tactile perception, and to activate the one or more actuators to mechanically alter the internal structure of the mechanical metamaterial region.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: March 19, 2019
    Assignee: IMMERSION CORPORATION
    Inventors: Jamal Saboune, Juan Manuel Cruz-Hernandez, Vahid Khoshkava
  • Patent number: 10189050
    Abstract: An electromechanical transducer includes a first electrode; a silicon oxide film disposed on the first electrode; and a vibration film including a silicon nitride film disposed on the silicon oxide film with a space therebetween and a second electrode disposed on the silicon nitride film so as to oppose the first electrode.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 29, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazutoshi Torashima, Takahiro Akiyama, Toshio Tomiyoshi
  • Patent number: 10148142
    Abstract: A buckling loop rotary motor is disclosed that has a stator, an activatable buckling loop and a rotor. The buckling loop is made of a springy, base band and an activatable active band. An applied force actuates a portion of loop, causing a localized change of curvature. When propagated along the buckling loop, the changed curvature causes rotation of the rotor. In a bi-metallic embodiment, the thermally actuated active band expands by at least 1% more than the base band, effect a localized change of curvature that drives the rotor. Thermal activation is by heating or cooling, or a combination thereof. In an electroactive polymer (EAP), the active acrylic or silicone EAP is actuated by an electrostatic charge. The change in thickness, and therefore, length, of the active EAP relative to the inactive, base material causes a local change of curvature of the loop that drives rotation of the rotor.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: December 4, 2018
    Inventor: Baoxiang Shan
  • Patent number: 10122301
    Abstract: A new rotor start-up system is provided for application to rotating systems such as stationary or vehicular electromechanical battery systems. An embodiment of the system consists of a “locator” that includes a stationary permanent-magnet pole above which is a circular ferromagnetic (e.g., iron) strip embedded in the lower, inner edge of the flywheel rotor. The lower edge of this strip is wave-like so that the magnet can pull the rotor around to a position where the position relative to the minimum capacity between the rotor and stator electrodes is such as to launch the rotor in a chosen direction, i.e., either clock-wise or counter-clockwise. Startup from rest is then accomplished by applying a short high-voltage ac or dc pulse to the EMB capacitor.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: November 6, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard F Post
  • Patent number: 10118266
    Abstract: A transfer robot includes a supporting part, a moving part, a magnet unit, and a coil. The moving part is supported by the supporting part and movable along a predetermined travel path. The moving part is provided with a hand for carrying a workpiece. The magnet unit is disposed at the supporting part and extends longitudinally along the travel path. The magnetic unit generates magnetic flux that is at least partially perpendicular to the travel path. The coil is disposed at the moving part and intersects the magnetic flux. The magnetic flux varies or is different at positions along the travel path.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: November 6, 2018
    Assignee: DAIHEN Corporation
    Inventor: Takaya Yamada
  • Patent number: 10122302
    Abstract: A flexible and soft smart driving device comprises a flexible frame, a driving mechanism and a creeping structure. The driving mechanism uses an intrinsic strain of an intelligent soft material to generate a driving force. A creeping structure is used to implement autonomous activities of the flexible and soft smart driving device. The driving mechanism and the creeping structure are attached to the flexible frame. The driving mechanism generates the driving force by contraction and relaxation of a driving membrane. The flexible and soft smart driving device is made from flexible materials and has advantages of good creeping speed, flexible control, small noise and high human body compatibility.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: November 6, 2018
    Assignee: Zhejiang University
    Inventors: Tiefeng Li, Zhanan Zou, Chi Li, Guoyong Mao, Xuxu Yang, Zhipeng Zhai, Shaoxing Qu
  • Patent number: 10119856
    Abstract: A method is provided for detecting a perturbation with respect to an initial state, of a device including at least one resonant mechanical element exhibiting a physical parameter sensitive to a perturbation such that the said perturbation modifies the resonance frequency of the said resonant mechanical element. A device is provided for detecting a perturbation by hysteretic cycle having at least one electromechanical resonator with nonlinear behavior and means for actuation and detection of the reception signal via a transducer so as to analyze the response signal implementing the method. A mass sensor and a mass spectrometer using the device are also provided.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: November 6, 2018
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, ECOLE NATIONALE TRAVAUX PUBLICS DE L'ETAT, INSTITUT NATIONAL SCIENCES APPLIQUEES DE LYON, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Sebastien Hentz, Sebastien Baguet, Regis Dufour, Claude-Henri Lamarque, Van Nghi Nguyen
  • Patent number: 10093534
    Abstract: A capacitive micromachined ultrasonic transducer and a method of fabricating the same are provided. The capacitive micromachined ultrasonic transducer includes a device substrate including a first trench defining a plurality of first portions corresponding to an element and a second trench spaced apart from the first trench; a supporting unit provided on the device substrate, the supporting unit defining a plurality of cavities; a membrane provided on the supporting unit to cover the plurality of cavities; a top electrode electrically connected to a second portion in the second trench through a via hole penetrating through the membrane and the supporting unit; and a through silicon via (TSV) substrate provided on a bottom surface of the device substrate, the TSV substrate including a first via metal connected to the plurality of first portions corresponding to the element and a second via metal connected to the second portion.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 9, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-sik Shim, Seog-woo Hong, Seok-whan Chung, Chang-jung Kim
  • Patent number: 10093536
    Abstract: An MEMS double-layer suspension microstructure manufacturing method, comprising: providing a substrate; forming a first dielectric layer on the substrate; patterning the first dielectric layer to prepare a first film body and a cantilever beam connected to the first film body; forming a sacrificial layer on the first dielectric layer; patterning the sacrificial layer located on the first film body to make a recess portioned portion for forming a support structure, with the first film body being exposed at the bottom of the recess portioned portion; forming a second dielectric layer on the sacrificial layer; patterning the second dielectric layer to make the second film body and the support structure, with the support structure being connected to the first film body and the second film body; and removing part of the substrate under the first film body and removing the sacrificial layer to obtain the MEMS double-layer suspension microstructure.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: October 9, 2018
    Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.
    Inventor: Errong Jing
  • Patent number: 10084310
    Abstract: A DC power bus having reduced parasitic inductance and higher tolerable operating temperature is disclosed. In example embodiments, a bus structure overlies a printed circuit board, and an array of capacitors is arranged on a surface of the printed circuit board distal the bus structure. The bus structure comprises an upper metal plate, a lower metal plate, and a dielectric film interposed between the upper and lower metal plates. The capacitors are connected in parallel between conductive planes of the printed circuit board. The upper and lower metal plates of the bus structure are connected to respective conductive planes of the printed circuit board.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: September 25, 2018
    Assignee: National Technology & Engineering Solutions of Sandia, LLC
    Inventors: Jason C. Neely, Joshua Stewart, Jarod James Delhotal, Jack David Flicker, Geoff L. Brennecka
  • Patent number: 10077184
    Abstract: A MEMS self-aligned high-and-low comb tooth and manufacturing method thereof, the comb tooth having a lifting structure, the lifting structure generating a displacement in the vertical direction to drive the movement of a movable comb tooth or a fixed comb tooth attached thereto. The manufacturing method thereof adopts a silicon wafer, the lifting structure and the comb tooth are sequentially formed on a mechanical structure layer, the fixed comb tooth and the movable comb tooth are formed with the same etching process, and the stress in the lifting structure displaces the fixed comb tooth and the movable comb tooth in the vertical direction, thus forming the self-aligned high-and-low comb tooth.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 18, 2018
    Assignee: Wuxi Wio Technolgy Co.
    Inventors: Qiao Chen, Huikai Xie
  • Patent number: 10060805
    Abstract: A highly sensitive MEMS capacitive force sensor offering a wide force measurement range is disclosed. The force sensor utilizes a piston-tube electrode configuration that enables the use of a wide area of the electrodes. Therefore, a high sensitivity for force detection is achieved. The force sensor consists of a lower structure, an upper structure, and a force contact platform. The lower structure contains a plurality of fixed electrodes that are attached to the base and have a plurality of teeth (pistons). Those teeth form the fixed sensing electrodes of the force sensor. The upper structure comprises of a moving section that has a plurality of apertures. The moving section is attached to the substrate via restoring mechanical springs. A force contact platform is attached to the moving electrode and provides the foundation for the force to be applied. The force sensor is able to measure concentrated and distributed force (mechanical pressure).
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: August 28, 2018
    Inventors: Faez Ba-Tis, Ridha Ben-Mrad
  • Patent number: 10051095
    Abstract: A low Z linear vibrator is described well suited for use in small form factor portable devices such as a smartphone. The low Z vibrator can be configured to include a beam structure that can be attached to a vibratory mass and a low profile actuator. The low profile actuator can cause the vibratory mass to oscillate in a well-defined and predictable manner.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 14, 2018
    Assignee: APPLE INC.
    Inventors: Sawyer Cohen, Ashutosh Yugesh Shukla, Andriy Pletenetskyy, Nicholas Merz, Timothy Michael Johnson, Yehonatan Perez
  • Patent number: 10050567
    Abstract: The present invention relates to a flexible energy conversion device using a liquid, and more specifically, to a method and a device for converting mechanical energy into electric energy by applying an opposite phenomenon of electrowetting, which can change a surface contacting the liquid between one pair of electrodes, and use the change of the surface contacting the liquid to generate electric energy, so as to prevent channel blocking or so that a lubricating layer or electrodes patterned onto a channel in a complicated manner are not required, thereby enabling simplification of the device, reduction of manufacturing cost, and the energy conversion device that is less faulty.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: August 14, 2018
    Assignees: Korea Electronics Technology Institute, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Soon Hyung Kwon, Won Keun Kim, Chul Jong Han, Jeong No Lee, Youn Sang Kim, Jun Woo Park
  • Patent number: 10041847
    Abstract: Sensor packages and manners of formation are described. In an embodiment, a sensor package includes a supporting die characterized by a recess area and a support anchor protruding above the recess area. A sensor die is bonded to the support anchor such that an air gap exists between the sensor die and the recess area. The sensor die includes a sensor positioned directly above the air gap.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: August 7, 2018
    Assignee: APPLE INC.
    Inventors: Caleb C. Han, Tongbi Jiang, Jun Zhai
  • Patent number: 10027254
    Abstract: This invention is related with electrical energy conversion device, which uses built-in potential of metal-to-metal junctions from repeating movements with random frequencies, speeds and amplitudes at the medium of the device. The device using the method does not rely on a resonant frequency, besides, it can convert the kinetic energy to electrical energy even at low frequencies. Furthermore, its application to the real life situations is economic and beneficial because of the efficient working principle and simple structure. Unique design of the device enables direct wiring of the outputs of identical or similar devices together for the purpose of power scaling without the need of using another device, which may cause energy losses and increase the total cost. This device also does not require a dummy voltage source or a precharge at the beginning of energy harvesting.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: July 17, 2018
    Inventors: Mehmet Serhan Ardanuc, Ozge Zorlu, Haluk Kulah, Tayfun Akin
  • Patent number: 10003281
    Abstract: A two-dimensionally structured material is transferred onto a ferroelectric or piezoelectric material layer, a property of the two-dimensionally structured material is controlled by poling performed on the ferroelectric or piezoelectric material to generate electric power generated by friction between the two-dimensionally structured material and a frictional charged material, and the electrostatic energy harvester has improved transparency and mechanical properties using the two-dimensionally structured material.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: June 19, 2018
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Sang Woo Kim, Seong Su Kim, Keun Young Lee, Han Joon Ryu, Tae Yun Kim
  • Patent number: 9987755
    Abstract: A system utilizes electroadhesive surfaces for braking and metering objects in an automated environment. An electroadhesive surface can include electrodes that are configured to induce an electrostatic attraction with nearby objects upon application of voltage to the electrodes. The systems described utilize various configurations of electroadhesive surfaces, sensors, controllers and programmable processors to create smart braking, capturing and metering systems for improved automated material handling.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: June 5, 2018
    Assignee: GRABIT, INC.
    Inventors: Harsha Prahlad, Charlie Duncheon, Steve Annen, Matthew Leettola, Jonathan Andrew Smith, Bobby Neil Roy
  • Patent number: 9983678
    Abstract: A user interface device having a user input component, a mechanical metamaterial region, one or more actuators, and a control unit is presented. The mechanical metamaterial region is located over the user input component. The one or more actuators are coupled to the mechanical metamaterial region, which has an internal structure that is mechanically alterable with the one or more actuators, and has a mechanical property that changes in response to the alteration of the internal structure by the one or more actuators. The control unit is in communication with the one or more actuators, and is configured to determine whether the user input component is to be hidden from tactile perception, and to activate the one or more actuators to mechanically alter the internal structure of the mechanical metamaterial region.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: May 29, 2018
    Assignee: Immersion Corporation
    Inventors: Jamal Saboune, Juan Manuel Cruz-Hernandez, Vahid Khoshkava
  • Patent number: 9968438
    Abstract: High resolution active matrix nanowire circuits enable a flexible platform for artificial electronic skin having pressure sensing capability. Comb-like interdigitated nanostructures extending vertically from a pair of opposing, flexible assemblies facilitate pressure sensing via changes in resistance caused by varying the extent of contact among the interdigitated nanostructures. Electrically isolated arrays of vertically extending, electrically conductive nanowires or nanofins are formed from a doped, electrically conductive layer, each of the arrays being electrically connected to a transistor in an array of transistors. The nanowires or nanofins are interdigitated with further electrically conductive nanowires or nanofins mounted to a flexible handle.
    Type: Grant
    Filed: November 7, 2015
    Date of Patent: May 15, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Bahman Hekmatshoartabari, Ghavam G. Shahidi, Davood Shahrjerdi
  • Patent number: 9955144
    Abstract: An apparatus for displaying auto-multiscopic 3D images includes a parallax barrier; an image source layer with a first side facing the rear surface of the parallax barrier; and an electromechanical system facing the second side of the image source layer. The parallax barrier comprises an array of transparent spots. The image source layer comprises at least one clear spot and is configured to emit light away from the parallax barrier. The electromechanical system comprises one or more mirrors pivotably mounted and controllable to reflect light towards the at least one clear spot in the image source layer.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 24, 2018
    Assignee: Lightscope Media, LLC
    Inventor: Kedrick F. Brown
  • Patent number: 9954463
    Abstract: The present invention relates to an energy conversion device using a change of a contact surface with liquid and, more specifically, to a method and a device for converting mechanical energy into electrical energy by applying an opposite phenomenon to an electrowetting phenomenon. The energy conversion device having a simplified structure and reduced manufacturing costs with minimal malfunctions by changing a contact surface with liquid between a pair of electrodes and using the change of the contact surface with the liquid to generate electrical energy such that channel blocking can be prevented or a lubricating layer or electrodes complicatedly patterned on a channel are not required.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: April 24, 2018
    Assignee: Korea Electronics Technology Institute
    Inventors: Soon Hyung Kwon, Young Hoon Kim, Min Suk Oh, Ji Wan Kim, Byung Wook Yoo, Youn Sang Kim, Jun Woo Park
  • Patent number: 9921678
    Abstract: A tactile sensor for sensing touch from a human finger includes a triboelectric layer and includes a material that becomes electrically charged after being in contact with the finger. The first side of a first conductive layer is in contact with the second side of triboelectric layer. The first side of a dielectric layer is in contact with the first conductive layer and the second side of the dielectric layer is in contact with a second conductive layer. When the triboelectric layer becomes electrically charged after being in contact with the finger, the first conductive layer and the second conductive layer are subjected to an electric field, which has a first field strength at the first conductive layer and a second field strength, different from the first field strength, at the second conductive layer. A plurality of tactile sensors can be arranged as a keyboard.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: March 20, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Zhong Lin Wang, Guang Zhu
  • Patent number: 9906170
    Abstract: A manufacturing method of a triboelectric energy harvester, including the steps of generating an electrification material with a surface of a micro-nano pattern on an electrode and forming a coating electrification layer to support the micro-nano pattern on a surface of the electrification material, is provided.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: February 27, 2018
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yang Kyu Choi, Myeong Lok Seol, Dong Il Lee
  • Patent number: 9903788
    Abstract: An apparatus includes an electroactive polymer member and a first electric terminal and a second electric terminal. The electroactive polymer member has a free portion configured to change position relative to a fixed portion in response to an external stimulus corresponding to at least one of a flow parameter or a fluid parameter. The first electric terminal and the second electric terminal are coupled to the electroactive polymer member. The first electric terminal and the second electric terminal provide an electrical signal in response to the change.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 27, 2018
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: Guoming G Zhu, Xiaobo Tan, David Ling-Shun Hung
  • Patent number: 9899939
    Abstract: There is provided a system and method for harvesting electrical energy from interaction with papers. The system comprising an electret disposed between a first electrode and a second electrode, and an interactive device connected to one end of the first electrode and one end of the second electrode to provide an electrical potential, the interactive device configured to receive the electrical potential by moving the second electrode relative to the electret for generating electrical energy. Interactive devices that can be activated by the generator can include a light-emitting diode, an electronic paper display, an infrared communication, and a buzzer.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: February 20, 2018
    Assignee: Disney Enterprises, Inc.
    Inventors: Mustafa Emre Karagozler, Ivan Poupyrev, Gary K. Fedder
  • Patent number: 9899938
    Abstract: In one embodiment, an electrostatic actuator includes a generally planar fixed frame, a generally planar moving frame coupled to the fixed frame by a flexure for substantially coplanar, perpendicular movement relative to the fixed frame, a plurality of interdigitated teeth, a fixed portion of which is attached to the fixed frame and a moving portion of which is attached to the moving frame, and an elongated output shaft having opposite input and output ends, the input end being coupled to the moving frame.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: February 20, 2018
    Assignee: DigitalOptics Corporation MEMS
    Inventors: Robert J. Calvet, Guiqin Wang, Roman C. Gutierrez, Xiaolei Liu
  • Patent number: 9899937
    Abstract: An electrostatic rotating electrical machine employs interdigitated axial pegs on opposed rotor and stator plates, the pegs immersed in a high dielectric constant fluid. Peg shape, length and positioning may be varied to tailor a changing aspect profile to a desired power source.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: February 20, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Baoyun Ge, Daniel Colin Ludois
  • Patent number: 9889807
    Abstract: A system of a vehicle may include an electrical load, a generator, and first and second conduits. The electrical load of the vehicle may include a high energy device that utilizes above 270 volts during operations of the vehicle. The generator may be coupled to an engine of the vehicle and configured to generate electrical power at a voltage above 270 volts for the electrical load of the high energy device during operations of the vehicle. The first and second conduits may be arranged along each other to house respective first and second conductors that are electrically disposed between the electrical load and the generator.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: February 13, 2018
    Assignee: Rolls-Royce North American Technologies, Inc.
    Inventors: William L. Siegel, Rigoberto J. Rodriguez
  • Patent number: 9886098
    Abstract: A keyboard for converting keystrokes into electrical signals is disclosed. The keyboard includes a plurality of keys. At least one of the keys includes two electrodes and a member that generates triboelectric charges upon skin contact. The member is adjacent to one of the electrodes to affect a flow of electrons between the two electrodes when a distance between the member and the skin varies.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 6, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Zhong Lin Wang, Guang Zhu, Jun Chen
  • Patent number: 9883151
    Abstract: An apparatus and method for capturing a light field image. The light field image capture apparatus includes a mirror array or a micro-lens array. An activated mirror selected from among the multiple mirrors of the mirror array provides light to the multiple elements of an image sensor. An activated lens, selected from among the multiple lenses of the micro-lens array, provides light to the multiple elements of the image sensor. Based on timesharing, the mirror, selected as the activated mirror from among the multiple mirrors, is changed, and the lens, selected as the activated lens from among the multiple lenses, is changed.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: January 30, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Do-Hyung Kim, Seong-Jin Park, Il-Kyu Park, Chang-Joon Park, Jin-Sung Choi
  • Patent number: 9872113
    Abstract: A measurement device (10) for evaluating an electronic device (100) that causes sound to be heard via vibration transmission by pressing a vibrating body against a human ear includes an ear model (50) modeled after a human ear and vibration pickups (57a) and (57b) disposed at a periphery of an artificial external ear canal (53) formed in the ear model (50).
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: January 16, 2018
    Assignee: KYOCERA Corporation
    Inventor: Tomohiro Inagaki
  • Patent number: 9853809
    Abstract: Described herein is a combination of mixed-signal hardware and software that is capable or realizing hybrid chaotic oscillators that can be tuned digitally. This includes the type/class of chaotic oscillator, initial conditions, nonlinear elements, thresholds, nonlinear event surfaces, delays, etc. At the same time, tunable methods of how to use the chaotic oscillator information to encrypt and decrypt both analog and digital information is presented. This will make the secure information not vulnerable by digital information compromises or hardware breach.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: December 26, 2017
    Assignee: Board of Regents of the University of Texas System
    Inventors: Benito R. Fernández, José R. Capriles-Grané, Michael D. Bryant, John W. Hall, Carlos A. García
  • Patent number: 9843275
    Abstract: A generator includes a first member, a second member and a sliding mechanism. The first member includes a first electrode and a first dielectric layer affixed to the first electrode. The first dielectric layer includes a first material that has a first rating on a triboelectric series. The second member includes a second material that has a second rating on the triboelectric series that is different from the first rating. The second member includes a second electrode. The second member is disposed adjacent to the first dielectric layer so that the first dielectric layer is disposed between the first electrode and the second electrode. The sliding mechanism is configured to cause relative movement between the first member and the second member, thereby generating an electric potential imbalance between the first electrode and the second electrode.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 12, 2017
    Assignee: Georgia Tech Research Corporation
    Inventors: Zhong Lin Wang, Guang Zhu, Ya Yang, Hulin Zhang, Youfan Hu, Jin Yang, Qingshen Jing, Peng Bai