Patents Examined by Jaydi A San Martin
  • Patent number: 10790434
    Abstract: A piezoelectric thin film-stacked body is provided. A piezoelectric thin film-stacked body has a first electrode layer, a first oxide layer stacked on the first electrode layer, a second oxide layer stacked on the first oxide layer, and a piezoelectric thin film stacked on the second oxide layer, the electrical resistivity of the first oxide layer is higher than the electrical resistivity of the second oxide layer, the first oxide layer includes K, Na, and Nb, and the piezoelectric thin film includes (K,Na)NbO3.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: September 29, 2020
    Assignee: TDK CORPORATION
    Inventors: Hitoshi Sakuma, Tomohisa Azuma, Kenta Ishii
  • Patent number: 10420599
    Abstract: An ultrasonic vibrator and an ultrasonic treatment device which can adjust a resonant frequency while maintaining driving force are provided. An ultrasonic vibrator 1 includes two metal blocks 2, a driving unit 3 that is arranged between the metal blocks 2 and produces a piezoelectric effect to vibrate by application of an alternating voltage, and at least one adjustment unit 4 that is arranged between the metal blocks 2 and the driving unit 3 in an insulated state and changes Young's modulus.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: September 24, 2019
    Assignee: Olympus Corporation
    Inventor: Nagahide Sakai
  • Patent number: 9945458
    Abstract: A motion producing device comprising an output member with a contact surface and a reference member. An actuator member is attached to the reference member, the actuator member having a traction surface and comprising actuator zones, each actuator zone being energizable to move a corresponding portion of the traction surface to change a contact state of the traction surface with the contact surface depending on an energized state of the actuator zone. An energy source is operatively coupled to the actuator zones for sequentially changing the energized state of the actuator zones. The actuator member provides a torque transmission path between the reference member and the output member.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: April 17, 2018
    Assignee: Genesis Robotics LLP
    Inventor: James Brent Klassen
  • Patent number: 9728707
    Abstract: The present invention relates to an energy harvester device comprising an elongate resonator beam comprising a piezoelectric material, the resonator beam extending between first and second ends; a base connected to the resonator beam at the first end with the second end being freely extending from the base as a cantilever; a mass attached to the second end of the resonator beam; a package surrounding at least a portion of the second end of the resonator beam; and a compliant stopper connected to the package, where the stopper is configured to stabilize motion of the cantilever to prevent breakage. Also disclosed is a system, a method of powering an electrically powered apparatus, and methods of producing an energy harvester device.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: August 8, 2017
    Assignee: MicroGen Systems, Inc.
    Inventors: Kathleen M. Vaeth, David Trauernicht, Robert G. Andosca
  • Patent number: 9634229
    Abstract: In a piezoelectric device, an ultrasound probe, and a droplet discharge unit of the present invention, each of a pair of first and second electrodes is placed on a piezoelectric member having a single orientation in a direction perpendicular to a thickness direction thereof to extend in a direction perpendicular to the thickness direction or along the thickness direction and in a direction perpendicular to the direction of the orientation. Therefore, the piezoelectric device of the present invention has excellent piezoelectric properties. Further, the ultrasound probe and the droplet discharge unit of the present invention have good efficiency.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: April 25, 2017
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kouichi Sameshima, Takashi Matsuo
  • Patent number: 9537081
    Abstract: To provide a lead-free piezoelectric material having a high and stable piezoelectric constant in a wide operating temperature range. The piezoelectric material contains a perovskite type metal oxide having the general formula (1), Mn, Mg, (Ba1-xCax)a(Ti1-y-zSnyZrz)O3??(1) (wherein x is in the range of 0.050?x?0.200, y is in the range of 0.010?y?0.040, and z is in the range of 0?z?0.040, provided that x?0.375(y+z)+0.050, and a is in the range of 0.9925+b?a?1.0025+b) wherein the amount b (mol) of Mn on a metal basis per mole of the metal oxide is in the range of 0.0048?b?0.0400, and the Mg content on a metal basis per 100 parts by weight of the metal oxide is 0.100 parts by weight or less.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: January 3, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kanako Oshima, Hiroshi Saito, Tatsuo Furuta, Takanori Matsuda, Shunsuke Murakami
  • Patent number: 9466779
    Abstract: A piezoelectric actuator includes one piezoelectric layer, a common electrode disposed on the lower surface of the piezoelectric layer and individual electrodes disposed on the upper surface of the piezoelectric layer. In the piezoelectric layer, a plurality of metal patterns arranged at regular intervals in the conveyance direction and in a direction orthogonal to the conveyance direction and overlapping with pressure chambers are provided substantially at the central part in the direction of the thickness. The metal patterns are not electrically continuous with each other and not electrically continuous with other parts. The metal patterns situated outermost in the conveyance direction are disposed so as to cross the edge of the pressure chamber. Some metal patterns overlap with the individual electrode and the other metal patterns do not overlap with the individual electrode.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: October 11, 2016
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takamasa Usui, Yasuhiro Sekiguchi, Tomohiro Nodsu
  • Patent number: 9425768
    Abstract: A resonator element has a base part, vibrating arms having first principal surfaces and second principal surfaces in front-rear relationships with each other and extending from the base part, and side surfaces connected to the first principal surfaces and the second principal surfaces on ends of the vibrating arms, and the side surfaces are slopes having tilts with respect to perpendicular lines of the first principal surfaces or the second principal surfaces and provided from the first principal surfaces to the second principal surfaces, and crystal faces.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 23, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akinori Yamada, Shuhei Yoshida
  • Patent number: 9246467
    Abstract: An integrated resonator apparatus includes a piezoelectric resonator and an acoustic Bragg reflector formed adjacent the piezoelectric resonator. The integrated resonator apparatus also includes a mass bias formed over the Bragg reflector on a side of the piezoelectric resonator opposite the piezoelectric resonator.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 26, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Byron Neville Burgess, William Robert Krenik, Stuart M. Jacobsen
  • Patent number: 9167351
    Abstract: A heated resonator includes a base substrate, a piezoelectric piece having a thickness and a top side and a bottom side, a first electrode on the top side, a second electrode opposite the first electrode on the bottom side, an anchor connected between the piezoelectric piece and the base substrate, and a heater on the piezoelectric material. A thermal resistor region in the piezoelectric piece is between the heater and the anchor.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: October 20, 2015
    Assignee: HRL Laboratories, LLC
    Inventor: Christopher S. Roper
  • Patent number: 9148120
    Abstract: A piezoelectric vibrating piece including: a pair of vibrating arm sections which has a groove section, respectively; a base section which is disposed between the pair of vibrating arm sections; and a connecting section which connects each base end of the pair of vibrating arm sections and the base section. If a length from a base end to a leading end of the vibrating arm section in a longitudinal direction of the vibrating arm section is Lv, and a length from the base end of the vibrating arm section to an end of the connecting section on the opposite side to the vibrating arm section is Lc, a relationship of Lc/Lv?0.1 is satisfied.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 29, 2015
    Assignee: SII CRYSTAL TECHNOLOGY INC.
    Inventor: Masanori Tamura
  • Patent number: 9105844
    Abstract: The present invention relates to a piezoelectric device of a multi-layered structure on which first electrodes and second electrodes are sequentially stacked on a piezoelectric polymer and single surfaces or both surfaces of piezoelectric polymer. In accordance with the present invention, the vibration response characteristics of the piezoelectric polymer can be improved by using the graphene or the composite thereof as a surface electrode material to the piezoelectric polymer; and, there are effects that the response characteristics of the piezoelectric device are excellent and the reliability thereof is excellent by forming a second electrode having an excellent conductivity and a protection electrode thereof.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: August 11, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Woon Chun Kim, Kwang Joe Jeon, Jr., Seung Hyun Sohn, Kang Heon Hur, Hyun Ho Lim
  • Patent number: 9105845
    Abstract: A piezoelectric ceramic with environmental friendliness including a composition as the main component composed of a composite oxide free from lead (Pb) as a constituent element, and with excellent piezoelectric characteristics such as the relative dielectric constant, the electromechanical coupling factor, and the piezoelectric constant, and a piezoelectric device using the piezoelectric ceramic, are provided. A piezoelectric ceramic including a composition represented by the following general formula as the main component: (K1-x-y-w-vNaxLiyBawSrv)m(Nb1-z-uTaz-Zru)O3 (wherein, x, y, z, w, v, u and m in the formula satisfy the following conditions respectively: 0.4<x?0.7; 0.02?y?0.1; 0<z?0.3; 0<w?0.01; 0.04?v?0.07; 0.04?u?0.07; and 0.95?m<1).
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: August 11, 2015
    Assignee: TDK CORPORATION
    Inventors: Hideaki Sone, Tomohisa Azuma, Masahito Furukawa, Satoko Ueda
  • Patent number: 9048807
    Abstract: Surface acoustic wave resonators for use in high temperature applications including a piezoelectric substrate, at least one interdigital transducer supported by the piezoelectric substrate, and a grating reflector supported by the piezoelectric substrate, the grating reflector being fabricated of a heavy metal and comprising a plurality of electrodes, at least one electrode of the plurality of electrodes being electrically isolated from at least one other electrode. Methods of making surface acoustic wave resonators are also included.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: June 2, 2015
    Assignee: University of Maine System Board of Trustees
    Inventors: Mauricio Pereira Da Cunha, Bennet Meulendyk
  • Patent number: 8890391
    Abstract: In an external force detection apparatus, a crystal plate is cantilevered within a container. Excitation electrodes are formed on the top surface and the bottom surface of the crystal plate. A movable electrode is formed on a distal end on the bottom surface of the crystal plate and is connected to the excitation electrode on the bottom surface via an extraction electrode. A fixed electrode is provided on the bottom of the container to oppose the movable electrode. The excitation electrode on the top surface and the fixed electrode are connected to an oscillating circuit. When an external force acts on the crystal plate to bend it, the capacitance between the movable electrode and the fixed electrode changes, and this capacitance change is captured as a change in the oscillating frequency of the crystal plate.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: November 18, 2014
    Assignee: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Mitsuaki Koyama, Takeru Mutoh, Hiroki Iwai, Ryoichi Ichikawa
  • Patent number: 8816573
    Abstract: A piezoelectric vibration piece that can ensure good drive level characteristics and a piezoelectric vibrator, oscillator, electronic device and radio-controlled timepiece in which the piezoelectric vibration piece is used are provided. The width of the base-end side of the grooves 5 is narrower than that of the tip side of the grooves 5. The base 4 includes: a mount section 4a on the outer surface of which mount electrodes 12, 13 are formed to mount the piezoelectric vibration piece 1; and an intermediate section 4b that is connected to the mount section 4a and the pair of vibrating arms 3a, 3b so as to be positioned between the mount section 4a and the pair of vibrating arms 3a, 3b, on the outer surface of which leading electrodes 14a, 14b that connect the pair of excitation electrodes 10, 11 and the mount electrodes 12, 13 are formed. The width of the mount section 4a is wider than that of the intermediate section 4b.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: August 26, 2014
    Assignee: SII Crystal Technology Inc.
    Inventor: Takashi Kobayashi
  • Patent number: 8816569
    Abstract: There is provided an actuator that can deform as an electrolyte moves, wherein at least one of a pair of electrode layers contains polymer fibers, and the polymer fibers contain an electroconductive material and are porous.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: August 26, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sakae Suda, Sotomitsu Ikeda, Tetsuo Hino, Jun Yamamoto
  • Patent number: 8803407
    Abstract: The piezoelectric device comprises a piezoelectric vibrating piece having a base portion, a pair of vibrating arms extending in a specified direction from the base portion, and a pair of connection portions disposed on the pair of the supporting arms; a package having a bottom surface which accommodates the piezoelectric vibrating piece and side faces surrounding the bottom surface, in which a pair of electrode pads corresponding to the connection portions are formed on the bottom surface; and adhesive for bonding the pair of the electrode pads with the pair of connection portions. One electrode pad and the other electrode pad, with adhesive applied to the electrode pads, are shifted with respect to each other in a predetermined direction.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: August 12, 2014
    Assignee: Nihon Dempa Kogyo Co., Ltd.
    Inventors: Yuichi Kawase, Toshiaki Motegi, Shingo Kawanishi
  • Patent number: 8786163
    Abstract: A vibrational wave motor includes a motor main body and pressing member. The motor main body includes an electromechanical conversion element, elastic body and relative motion member. The elastic body joined to the electromechanical conversion element generates an oscillating wave. The relative motion member in pressure contact with the elastic body is rotationally driven relative to the elastic body. The pressing member generates a pressing force between the elastic body and relative motion member. The pressing member includes a pressure applying portion, extension portion and pressing main body. The pressure applying portion presses one of the elastic body and the relative motion member towards the other, along a rotation axis. The extension portion extends outward from the pressure applying portion in a radial direction centered about the rotation axis. The pressing main body is disposed more outward in the radial direction than the motor main body at the extension portion.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: July 22, 2014
    Assignee: Nikon Corporation
    Inventor: Takatoshi Ashizawa
  • Patent number: 8773002
    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: August 2, 2011
    Date of Patent: July 8, 2014
    Assignee: Samsung Medison Co., Ltd.
    Inventors: Gil Ju Jin, Jae Yk Kim, Jin Woo Jung