Patents Assigned to Taiyo Yuden Co., Ltd.
  • Patent number: 10418542
    Abstract: A piezoelectric ceramic speaker includes a piezoelectric element using a vibration sheet formed with piezoelectric ceramic having a primary phase constituted by ceramic grains of perovskite crystal structure containing Pb, Nb, Zn, Ti, and Zr, and a secondary phase constituted by ZnO grains, wherein the primary phase is constituted by ceramic grains expressed by a composition formula Pb {(Zr(1-a)Tia)x·(Ni1/3Nb2/3)y·(Zn1/3Nb2/3)z}O3 (where 0<x?0.85, 0?y<1, 0<z<1, x+y+z=1, and 0.45?a?0.60); and an enclosure which encloses the piezoelectric element.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: September 17, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Gouki Watanabe, Takayuki Goto, Keiichi Hatano, Sumiaki Kishimoto, Yutaka Doshida
  • Patent number: 10418162
    Abstract: One object is to provide an electronic component in which a standoff for filling solder is maintained. An electronic component according to an embodiment of the present invention is configured to be surface-mountable on a circuit board. The electronic component includes: an insulating base member; an internal conductor provided in the base member; a first external electrode provided on the mounting surface of the base member so as to be electrically connected to the internal conductor; and a second external electrode provided on the mounting surface of the base member so as to be electrically connected to the internal conductor. The first external electrode has a first protrusion, and the second external electrode has a second protrusion. The first protrusion and the second protrusion enables a standoff for filling solder to be maintained within a region defined by the mounting surface of the base member and the circuit board.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: September 17, 2019
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Takayuki Sekiguchi, Tsuyoshi Ogino, Takao Shibuya
  • Publication number: 20190280628
    Abstract: An embodiment of this invention relates to a motor driving control apparatus for a moto-assisted vehicle, which includes a driving unit configured to drive a motor, and a controller configured to determine a regeneration amount based on a first speed of a vehicle that moves by the motor driven by the driving unit, and control the driving unit according to the regeneration amount, wherein the first speed is a speed at a first timing when it is detected that a brake of the vehicle is changed to OFF, or is determined based on temporal change in an acceleration of the vehicle.
    Type: Application
    Filed: March 1, 2019
    Publication date: September 12, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yasuo HOSAKA, Yuuji EBINUMA, Taichi YANAOKA, Hirokazu SHIRAKAWA
  • Publication number: 20190280670
    Abstract: An acoustic wave device includes: first and second terminals located on a first surface of a first substrate; a third terminal that is located on the first surface and is a ground terminal; series resonators located on a second surface of the first substrate and electrically connected in series with a path between the first and second terminals; a parallel resonator that is located on the second surface and has a first end electrically connected to the path and a second end electrically connected to the third terminal; and a fourth terminal located on the first surface, at least a part of the fourth terminal overlapping with, in a thickness direction of the first substrate, at least one of one or more first series resonators of the series resonators, the one or more first series resonators having both ends to which other series resonators are electrically connected.
    Type: Application
    Filed: February 6, 2019
    Publication date: September 12, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Takuma KUROYANAGI, Mitsuhiro HABUTA
  • Patent number: 10410799
    Abstract: An electrochemical device includes a positive electrode, a negative electrode, and separators which are stacked and wound together, and electrolytic solution. A negative-electrode terminal is provided which is made of metal, and has a joining part which is a part joined to the principal face of the negative-electrode collector. The negative electrode has a first width, the positive electrode has a second width, which is smaller than the first width, and the separators have a third width, which is greater than the first width, along the direction parallel with the center axis of winding. The length of the joining part along the direction parallel with the center axis of winding is equal to or greater than the second width, but equal to or smaller than the third width.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: September 10, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takatoshi Nagase, Shinji Ishii, Koji Kano, Katsunori Yokoshima
  • Patent number: 10412502
    Abstract: An electroacoustic transducer that can improve acoustic characteristics has a housing and a piezoelectric speaker. The piezoelectric speaker has a first vibration plate with a periphery part supported directly or indirectly on the housing, as well as a piezoelectric element placed at least on one side of the first vibration plate, and is constituted in such a way that its rigidity is asymmetric with respect to the center axis of the first vibration plate.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: September 10, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Shigeo Ishii, Takashi Tomita, Hiroshi Hamada, Yutaka Doshida
  • Patent number: 10403871
    Abstract: An electric storage cell has an electric storage element and a covering film package. The covering film package houses the electric storage element and includes: a metal layer having a first principle face on the electric storage element side and a second principle face on the opposite side of the first principle face, an internal resin layer made of synthetic resin and laminated to the first principle face, and an external resin layer made of synthetic resin and laminated to the second principle face, with a slit formed at least in the external resin layer; wherein a stress mitigation part to mitigate any stress that tries to separate the internal resin layers that are contacting each other, and a stress concentration part where this stress concentrates, are provided between the slit and the electric storage element.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: September 3, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takayuki Tsuchiya, Hiromi Sato, Shinji Ishii
  • Patent number: 10403438
    Abstract: In an embodiment, a multilayer ceramic capacitor 10 has supplementary dielectric layers 11d covering the spaces between two first base conductor films 11c on both height-direction faces of a capacitive element 11?, respectively, in such a way that clearances CL are left between the first base conductor films 11c and the supplementary dielectric layers 11d in the length direction. External electrodes 12, 13 each have a second base conductor film 12a, 13a and a surface conductor film 12b, 13b, and the wraparound locations 12b1, 13b1 of each surface conductor film 12b, 13b have insertion parts 12b2, 13b2 that fill in the clearances CL. The multilayer ceramic capacitor can mitigate deterioration in moisture resistance.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: September 3, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: So Sato, Yoshiaki Iijima, Takashi Sasaki
  • Patent number: 10404230
    Abstract: A piezoelectric thin film resonator includes: lower and upper electrodes located on a substrate and facing each other; a piezoelectric film sandwiched between the lower and upper electrodes and including lower and upper piezoelectric films, an outer outline of the upper piezoelectric film coinciding with or being located further out than an outer outline of a resonance region in a region surrounding the resonance region, the outer outline of the upper piezoelectric film being located further in than an outer outline of the lower piezoelectric film in the region; an insertion film interposed between the lower and upper piezoelectric films, located in an outer peripheral region within the resonance region, not located in a central region of the resonance region, and located on an upper surface of the lower piezoelectric film in the region; and a protective film located on the upper electrode in the resonance region, and located so as to cover an end face of the upper piezoelectric film and an upper surface of t
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: September 3, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Hiroomi Kaneko, Hiroshi Kawakami, Shinji Taniguchi, Tokihiro Nishihara, Tsuyoshi Yokoyama
  • Patent number: 10403437
    Abstract: In an exemplary embodiment, a multilayer ceramic capacitor 10 is formed in such a way that a first face f1 of a capacitor body 11 has a concave shape and a first part 12a of a first external electrode 12 contacts the concave-shaped first face f1, and that a second face f2 of the capacitor body 11 has a concave shape and a first part 13a of a second external electrode 13 contacts the concave-shaped second face f2.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: September 3, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Yusuke Kowase
  • Patent number: 10395830
    Abstract: A multi-layer ceramic electronic component includes: a ceramic body including first and second main surfaces oriented in a first axial direction, first and second end surfaces oriented in a second axial direction orthogonal to the first axial direction, a first internal electrode drawn to the first end surface, and a second internal electrode facing the first internal electrode and being drawn to the second end surface, the ceramic body being formed to be long in a third axial direction orthogonal to the first and second axial directions, a dimension of the ceramic body in the first axial direction being 80 ?m or less; a first external electrode covering the first end surface and extending from the first end surface to the first and second main surfaces; and a second external electrode covering the second end surface and extending from the second end surface to the first and second main surfaces.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: August 27, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masataka Watabe, Yasutomo Suga
  • Patent number: 10396759
    Abstract: A filter includes: a first substrate; first and second piezoelectric thin film resonators located on the first substrate, each of the resonators including first and second electrodes facing each other across a piezoelectric film, a crystal orientation from the first electrode to the second electrode of the piezoelectric film being the same between the resonators, the first electrodes of the resonators connecting to each other in a connection region between resonance regions where the first and second electrodes face each other across the piezoelectric film, the second electrodes of the resonators failing to connect to each other, and an area of the resonance region being approximately the same between the resonators, a second substrate mounting the first substrate across an air gap; and a ground pattern located on the second substrate and not overlapping with the first electrode located in the resonance regions and the connection region.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 27, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Taisei Irieda, Tokihiro Nishihara
  • Patent number: 10395831
    Abstract: In an exemplary embodiment, an electronic component with metal terminals includes a multilayer ceramic capacitor 10 having a pair of external electrodes 12, and a pair of metal terminals 20 each having, integrally, a plate-like supporting part 21 and a plate-like connecting part 22, and is constituted so that the supporting part 21 of each of the metal terminals 20 is joined to each of the external electrodes 12 in a manner allowing the connecting parts 22 to face each other, wherein two projecting parts 23 are provided on the connecting face of the connecting part 22 of each of the metal terminals 20.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 27, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Naoki Saito
  • Patent number: 10396757
    Abstract: An acoustic wave device includes: a first piezoelectric substrate; a first IDT that includes a plurality of first electrode fingers and is located on a first surface of the first piezoelectric substrate; a second piezoelectric substrate that is located above the first surface; and a second IDT that is located on a second surface of the second piezoelectric substrate, and includes a plurality of second electrode fingers that are non-parallel to the plurality of first electrode fingers, the second surface of the second piezoelectric substrate facing the first surface across an air gap.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: August 27, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Naoki Kakita, Takuma Kuroyanagi
  • Patent number: 10395820
    Abstract: A common mode choke coil according to one embodiment of the present invention includes a first coil conductor, a second coil conductor, and a third coil conductor. In the embodiment, the second coil conductor has a different shape than the first coil conductor and the third coil conductor. In the embodiment, the first coil conductor, the second coil conductor, and the third coil conductor extend parallel with each other in a first region in plan view as seen from an axial direction along the coil axis. In the embodiment, in the first region, when seen in a cross section cut along a plane including the coil axis, in an n-th turn, an arranging order of the first coil conductor, the second coil conductor, and the third coil conductor from an inner side in a radial direction thereof is inverted from that in an n+1th turn.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: August 27, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Akira Fukushima, Kenichiro Nogi, Masayuki Shimizu, Akihiro Hoshino
  • Publication number: 20190260351
    Abstract: A multiplexer includes: a filter located on a surface of a substrate and including first series and parallel resonators and a first wiring line; and another filter located on another surface of another substrate and including second series and parallel resonators and a second wiring line, each of first resonators among the second series and parallel resonators overlapping with the first series and parallel resonators, and/or the first wiring line, each of second resonators other than the first resonators among the second series and parallel resonators overlapping with none of the first series and parallel resonators and the first wiring line, when capacitances of series and parallel resonators in first basic sections including the first resonators are represented by Cs1 and Cp1, and capacitances of series and parallel resonators in second basic sections not including the first resonators are represented by Cs2 and Cp1, Cp1/Cs1 being less than Cp2/Cs2.
    Type: Application
    Filed: December 28, 2018
    Publication date: August 22, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Daiki ITOU, Yasuhisa OKAMOTO, Takuma KUROYANAGI, Fumiaki ISAKA
  • Publication number: 20190258302
    Abstract: A power supply module includes: a first resin substrate including a first electrode formed on one surface of a first polyimide substrate; a second resin substrate including a second electrode formed on one surface of a second polyimide substrate, the second resin substrate arranged such that the first and second electrodes oppose to each other; a first switching element provided between the first and second electrodes, and coupled to the first electrode; a second switching element provided between the first and second electrodes, and coupled to the second electrode; and a chip component provided between the first and second electrodes, the chip component having one end coupled to the first electrode at a position different from a region where the first switching element is arranged, and another end coupled to the second electrode at a position different from a region where the second switching element is arranged.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 22, 2019
    Applicant: TAIYO YUDEN CO., LTD.
    Inventor: Yutaka AOKI
  • Patent number: 10384860
    Abstract: In an embodiment, a carrier tape 10 for storing electronic components includes a band-shaped tape body 11 and storage recesses 12a, each having length L1, width W1, and depth D1 sufficient to store an electronic component EC, which storage recesses are provided in the tape body 11 at equal intervals in the length direction. On one width-direction side of the storage recesses 12a in the tape body 11, guide recesses 12b are provided in such a way that their depth D2 increases from the top face of the tape body 11 toward the one width-direction side face of the storage recess 12b, and that the guide recesses 12b themselves continue to the storage recesses 12a. The carrier tape is suited for the method of inserting electronic components into the storage recesses in the carrier tape from the side.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: August 20, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takashi Arai, Kageyuki Sekine
  • Patent number: 10388457
    Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrodes are alternately stacked and are alternately exposed to two edge faces of the multilayer structure; a first external electrode that is coupled to one of the two edge faces; and a second external electrode that is coupled to the other of the two edge faces, wherein: a main component of the plurality of ceramic dielectric layers is BaTiO3; the plurality of ceramic dielectric layers include a rare earth element; and an atomic concentration ratio of a total amount of Mn and V with respect to Ti in the plurality of ceramic dielectric layers is 0.035% or more and 0.120% or less.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: August 20, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Kunihiko Nagaoka, Noriyuki Chigira
  • Patent number: 10381160
    Abstract: A multi-layer ceramic electronic component includes a multi-layer unit and an external electrode. The multi-layer unit includes an end surface oriented in a first direction, a side surface oriented in a second direction orthogonal to the first direction, a ridge connecting the end surface and the side surface, ceramic layers, and internal electrodes. The multi-layer ceramic electronic component satisfies the following relationships: A/L?0.0142*ln(L)+0.0256, A/T?0.0274*ln(T)+0.0719, B/L?0.0103*ln(L)+0.0281, and B/T?0.0189*ln(T)+0.0707, where A represents a thickness of the external electrode in the second direction at a position adjacent to the ridge on the side surface, B represents a thickness of the external electrode in the first direction at a position adjacent to the ridge on the end surface, L represents a dimension of the multi-layer ceramic electronic component in the first direction, and T represents a dimension of the multi-layer ceramic electronic component in the second direction.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: August 13, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Katsuo Sakatsume, Masumi Ishii, Takeshi Nosaki, Norihiro Arai, Jyouji Ariga, Yasushi Inoue