Patents Assigned to Murata Manufacturing Co., Ltd.
  • Publication number: 20190180903
    Abstract: A multilayer coil component includes an element body; and a coil that is provided inside the element body and includes a plurality of coil conductors that are stacked in a stacking direction and are electrically connected to each other. Each coil conductor has a contact portion and a non-contact portion. A pair of the contact portions that are adjacent to each other in the stacking direction and contact each other form a contact region. In the coil, all the contact regions are located at different positions from each other when viewed in the stacking direction. The number of turns of the coil is represented by n (positive number). The number of stacked coil conductor layers is given by 2n+1.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Yasushi TAKEDA
  • Publication number: 20190181828
    Abstract: An electronic component module includes a piezoelectric film on a support substrate defined by a crystal substrate. An insulation layer is provided on the support substrate. A wiring electrode is electrically connected to an IDT electrode, and at least a portion of the wiring electrode is provided on the insulation layer. An external connection electrode is electrically connected to the wiring electrode. The external connection electrode and the piezoelectric film do not overlap each other in a plan view in a thickness direction of the support substrate. An elastic wave device is mounted on a mounting substrate via the external connection electrode. The mounting substrate has a coefficient of linear expansion different from that of the support substrate. A surface on the piezoelectric film side of the support substrate is a {100} plane.
    Type: Application
    Filed: November 26, 2018
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Hideki IWAMOTO
  • Publication number: 20190180909
    Abstract: A coil component including an element assembly and a coil conductor embedded in the element assembly. The element assembly includes a first magnetic layer and a second magnetic layer that constitute a first principal surface and a second principal surface, respectively, where the first principal surface and the second principal surface are opposite to each other in the element assembly. The first magnetic layer has a higher relative magnetic permeability than the second magnetic layer. At least part of a winding portion of the coil conductor is located in the first magnetic layer. The first magnetic layer contains metal magnetic particles and a resin, and the second magnetic layer contains metal magnetic particles, a resin, and zinc oxide particles. The metal magnetic particles and the zinc oxide particles are dispersed in the resin.
    Type: Application
    Filed: November 5, 2018
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Gota SHINOHARA, Noriko SHIMIZU, Keiichi ISHIDA, Hironobu KUBOTA, Mari YONEMURA, Takao KAWACHI
  • Publication number: 20190180926
    Abstract: A wire-wound coil component is an electronic component including a core main body, such as a molded body, containing a magnetic powder resin in which a resin serves as a binder, and an oxide film covering at least a portion of the surface, such as the lower surface, of the core main body. The electronic component further includes an external electrode including a base layer formed on the surface of the oxide film. The base layer is a metal layer having high affinity for oxygen.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Keijiro KOJIMA, Yuya ISHIDA, Hiroyuki SUGIE, Katsuyuki TAKAHASHI
  • Publication number: 20190180917
    Abstract: A coil component includes a main body portion containing resin and having a hole portion, a coil provided in the main body portion, and a substantially cylindrical pipe arranged inside the hole portion. The coil includes an inner wiring embedded in the pipe and an outer wiring exposed from the main body portion. The inner wiring and the outer wiring are integrally continuous.
    Type: Application
    Filed: November 27, 2018
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Junji KUROBE
  • Publication number: 20190180925
    Abstract: A coil component includes a main body portion containing resin, a coil provided in the main body portion, and an outer electrode electrically connected to the coil. A recess extending from a top surface of the main body portion toward a bottom surface thereof is provided in the side surface of the main body portion. The outer electrode is disposed in the recess, and a wall layer is interposed between the outer electrode and the inner surface of the recess.
    Type: Application
    Filed: November 19, 2018
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Junji KUROBE
  • Publication number: 20190180895
    Abstract: A coil component includes a magnetic portion that includes metal particles and a resin material, a coil conductor embedded in the magnetic portion, and outer electrodes electrically connected to the coil conductor. The average particle diameter of the metal particles in the magnetic portion is 1 ?m or more and 5 ?m or less, and the CV value of the metal particles is 50% or more and 90% or less.
    Type: Application
    Filed: January 24, 2019
    Publication date: June 13, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takuya ISHIDA, Gota SHINOHARA
  • Patent number: 10315928
    Abstract: A method for producing a barium titanate-based powder that includes mixing a titanium compound and a barium compound together with water and chlorine to prepare a slurry, and temporarily firing the mixture of the titanium compound and the barium compound which is contained in the slurry to provide a barium titanate-based powder. The chlorine in the slurry is in the form of chlorine ions in a ratio of 230 to 1100 wt ppm based on the amount of the barium titanate-based powder to be synthesized.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroko Ajichi, Toshiharu Nakagawa, Wenjun Wang, Sanae Nakae, Norikazu Tachibana
  • Patent number: 10320178
    Abstract: A power-source protection circuit includes a power source including a first voltage rail and a second voltage rail, a pass switch connected across the first voltage rail and a third voltage rail, a control switch connected to the second voltage rail and a control terminal of the pass switch, such that the pass switch turns on in response to the control switch turning on and the pass switch turns off in response to the control switch turning off, and output terminals connected to the third voltage rail and the second voltage rail. The control switch is arranged to switch on when the power source is started and the control switch is arranged to switch off when the output terminals are short-circuited and to switch on when the short-circuit is removed.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Rohit Sidapara
  • Patent number: 10317669
    Abstract: According to an embodiment, a micro-optical electromechanical device includes a body, a mirror element, and a spring structure configured to flexibly support the mirror element to the body. The spring structure includes at least one piezoelectric transducer adapted to induce in the spring structure a displacement that moves the mirror element.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Heikki Kuisma
  • Patent number: 10320154
    Abstract: An ESD protection device includes a multilayer substrate, first and second discharge electrodes, and a discharge auxiliary electrode. Discharge portions of the first and second discharge electrodes are opposed to each other in a lamination direction of insulating layers with the discharge auxiliary electrode interposed between both the discharge portions. A cavity is provided within the multilayer substrate in at least one of a region positioned adjacent to or in a vicinity of the discharge portion of the first discharge electrode on an opposite side to the discharge auxiliary electrode and a region positioned adjacent to or in a vicinity of the discharge portion of the second discharge electrode on an opposite side to the discharge auxiliary electrode.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Takeshi Miki
  • Patent number: 10319503
    Abstract: An electronic component according to an embodiment of the present disclosure includes a formed article containing a cyclic siloxane resin or a branched siloxane resin serving as a first binder, and an outer electrode on at least part of a surface of the formed article, the outer electrode containing an early transition metal and/or an alloy thereof.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: June 11, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yuya Ishida, Koji Sawai
  • Patent number: 10320363
    Abstract: A high-frequency module includes a longitudinally coupled surface acoustic wave filter and a low-noise amplifier that is connected to the surface acoustic wave filter. The input impedance of the surface acoustic wave filter connected to the low-noise amplifier differs from the output impedance thereof. On a Smith chart, the output impedance in the pass band of the surface acoustic wave filter is present in a region between a first output impedance and a second output impedance, the first output impedance being the output impedance of the surface acoustic wave filter where a gain of the low-noise amplifier is maximum, the second output impedance being the output impedance of the surface acoustic wave filter where a noise figure of the low-noise amplifier is minimum.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Chihiro Shoda, Takayuki Okude, Kentaro Kawasaki, Kentaro Funahashi, Takayuki Yamada
  • Patent number: 10317472
    Abstract: A power storage system includes: a power storage unit including a storage battery, a charging section that charges the storage battery, and a detection section that detects at least one status of the storage battery and the charging section from a plurality of perspectives; and an abnormality detection unit including an input section that acquires transmission information from the power storage unit via a transmission path, the transmission information including a plurality of detected status values, and an abnormality detection section that detects abnormality of the power storage unit by a multivariate analysis performed on the plurality of acquired status values.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hiroshi Shimabukuro
  • Patent number: 10319531
    Abstract: A composite electronic component includes a capacitor device and a resistor device stacked together in a height direction. The capacitor device includes a capacitor body and first and second external electrodes. The resistor device includes a base, a resistive element, first and second upper surface conductors, first and second lower surface conductors, a first connection conductor, and a second connection conductor. The upper surface of the base of the resistor device faces the lower surface of the capacitor body of the capacitor device, the first upper surface conductor is electrically connected to the first external electrode, and the second upper surface conductor is electrically connected to the second external electrode.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kazuo Hattori, Isamu Fujimoto, Shinichiro Kuroiwa
  • Patent number: 10319509
    Abstract: An embedded magnetic component device includes a magnetic core located in a cavity in an insulating substrate. An electrical winding includes inner and outer conductive connectors. An inner solid bonded joint boundary is located between first and second portions of the insulating substrate and extends between the cavity and the inner conductive connectors. An outer solid bonded joint boundary is located between the first and the second portions of the insulating substrate extends between the cavity and the outer conductive connectors. The minimum distance of the inner solid bonded joint boundary between any of the inner conductive connectors and the inner interior wall of the cavity is defined as D1, and the minimum distance of the outer solid bonded joint boundary between any of the outer conductive connectors and the outer interior wall of the cavity is defined as D2. D1 and D2 are about 0.4 mm or more.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Quinn Robert Kneller, Scott Andrew Parish, Justin Morgan
  • Patent number: 10319513
    Abstract: A common mode choke coil includes a core having a winding core part and a first and second wire wound around the winding core part. The winding core part has a first winding region, a switching region and second winding regions in this order along the axis of the winding core part. In the first winding region, each turn of the first wire is located closer to a first end portion of the winding core part than the corresponding same-numbered turn of the second wire. In the second winding region, each turn of the first wire is located closer to a second end portion of the winding core part than the corresponding same-numbered turn of the second wire. The number of turns of the first and second wires in the first winding region differs from the number of turns of the first and second wires in the second winding region.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: June 11, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masashi Miyamoto, Shigeto Yamamoto, Kentaro Yamaguchi
  • Patent number: 10319508
    Abstract: An electronic component includes a plurality of groups arrayed in a stacking direction, each including a first inductor conductor layer, a second inductor conductor layer, a connection conductor layer and a first insulator layer. In each group, the first insulator layer is provided between a first superposed portion of the first inductor conductor layer and a second superposed portion of the second inductor conductor layer. The connection conductor layer is provided at the same position as the first insulator layer in the stacking direction, and electrically connects the first non-superposed portion and the second non-superposed portion included in the same group to each other. Among two adjacent groups in the stacking direction, a second superposed portion included in a group on another side in the stacking direction and a first superposed portion included in a group on one side in the stacking direction are physically connected to each other.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: June 11, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yasushi Takeda
  • Patent number: 10314526
    Abstract: A biosensor including light emitting elements and a light receiving element disposed on a principal surface of a wiring board; a light shielding portion disposed between a light-emitting-element sealing portion and a light-receiving-element sealing portion; a base medium having light transmitting properties, disposed in parallel with the wiring board with the light shielding portion therebetween; an adhesion layer having light transmitting properties that bonds the base medium with the light-emitting-element sealing portion, the light-receiving-element sealing portion, and the light shielding portion; and a first electrocardiograph electrode attached to a principal surface of the base medium. Both end portions of the adhesion layer and both end portions of the base medium are disposed such that they overlap neither of the light-receiving-element sealing portion nor the light-emitting-element sealing portion when viewed from a direction normal to the principal surface of the wiring board.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Toru Shimuta, Yasutaka Fujii
  • Patent number: 10319710
    Abstract: Provided is a semiconductor device with a reduced variation in temperature among a plurality of unit transistors. A semiconductor device includes: a semiconductor substrate; and a transistor group including at least one column in which a plurality of unit transistors are aligned and arranged along a first axis on the semiconductor substrate. A first column of the at least one column includes: a first group of transistors including two of the unit transistors that are adjacent to each other with a first distance therebetween, and a second group of transistors including two of the unit transistors that are adjacent to each other with a second distance therebetween, the first group of transistors is disposed at a position closer to a center of the first column along the first axis than the second group of transistors, and the first distance is larger than the second distance.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: June 11, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yuri Honda, Fumio Harima, Kazuhito Nakai