Patents Assigned to Murata Manufacturing
  • INDUCTOR COMPONENT
    Publication number: 20240194396
    Abstract: An inductor component includes an element body, a coil in the element body and spirally wound along an axis, and first and second outer electrodes in the element body and electrically connected to the coil. The axis is parallel to a bottom surface of the element body and intersects the first and second side surfaces of the element body. The coil includes coil wiring layers laminated along the axis and including a first coil wiring layer connected to the first outer electrode. When viewed in a direction of the axis, the first coil wiring layer includes a top surface portion opposed to the top surface of the element body and a connecting portion connected between the first outer electrode and the top surface portion, and the connecting portion includes at least one curved portion.
    Type: Application
    Filed: December 11, 2023
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Shoto KAWAMURA, Yuuichirou YOSHIDA, Kenichi TANI
  • RADIO-FREQUENCY CIRCUIT AND COMMUNICATION DEVICE
    Publication number: 20240195441
    Abstract: A radio-frequency circuit includes a common terminal and a common terminal, a filter connected to the common terminal and the common terminal and having a first pass band, a filter connected to the common terminal and the common terminal and having a second pass band, and a cancellation circuit connected to the common terminal and the common terminal, connected in parallel with the filter and the filter, and configured to vary at least one of an amplitude and a phase in the bandpass characteristics.
    Type: Application
    Filed: November 1, 2023
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Keisuke ARIMA
  • SCALABLE POWER SUPPLY SYSTEM
    Publication number: 20240195282
    Abstract: A power supply system includes an MPU, multiple power conversion circuits, and multiple extended-control circuits. The MPU supplies a digital switching driving signal to the power conversion circuit, and supplies a digital switching driving signal to the power conversion circuit. The extended-control circuit, which includes a CR circuit, generates a switching driving signal which is delayed with respect to the digital switching driving signal, and supplies the switching driving signal to the power conversion circuit. The extended-control circuit, which includes a CR circuit, generates a switching driving signal which is delayed with respect to the digital switching driving signal, and supplies the switching driving signal to the power conversion circuit.
    Type: Application
    Filed: February 21, 2024
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Tatsuya HOSOTANI, Yoshihiro FUJIWARA
  • AMPLIFIER CIRCUIT AND RADIO-FREQUENCY CIRCUIT
    Publication number: 20240195366
    Abstract: An amplifier circuit includes an inductor coupled to an amplifier, an inductor coupled to an amplifier, an inductor provided in series in a first output path connecting the amplifier and the inductor, a capacitor coupled to the first output path and the ground, a capacitor provided in series in a second output path connecting the amplifier and the inductor, an inductor coupled to the second output path and the ground, and a first circuit coupled between a first path connecting the inductors and a second path connecting the capacitor and the inductor.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Isao TAKENAKA, Hisanori NAMIE
  • METAL MAGNETIC PARTICLE, INDUCTOR, METHOD FOR MANUFACTURING METAL MAGNETIC PARTICLE, AND METHOD FOR MANUFACTURING METAL MAGNETIC CORE
    Publication number: 20240191328
    Abstract: A metal magnetic particle provided with an oxide layer on a surface of an alloy particle containing Fe and Si. The oxide layer has a first oxide layer, a second oxide layer, a third oxide layer, and a fourth oxide layer. Also, in line analysis of element content by using a scanning transmission electron microscope-energy dispersive X-ray spectroscopy, the first oxide layer is a layer where Fe content takes a local maximum value, the second oxide layer is a layer where Fe content takes a local maximum value, the third oxide layer is a layer where Si content takes a local maximum value, and the fourth oxide layer is a layer where Fe content takes a local maximum value.
    Type: Application
    Filed: February 21, 2024
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takuya ISHIDA, Makoto YAMAMOTO, Katsutoshi UJI, Yuya ISHIDA, Mitsuru ODAHARA
  • INDUCTOR COMPONENT
    Publication number: 20240194397
    Abstract: An inductor component includes a body, a coil, and first and second outer electrodes. The coil is in the body and is helically wound around an axis. The first outer electrode and the second outer electrode are at the body and are electrically connected to the coil. The first outer electrode includes a first end face portion extending along a first end face of the body and a first bottom face portion connected to the first end face portion and extending along a bottom face of the body. The second outer electrode includes a second end face portion extending along a second end face of the body and a second bottom face portion connected to the second end face portion and extending along the bottom face. The axis is parallel to the bottom face and forms an angle with respect to first and second side faces of the body.
    Type: Application
    Filed: December 11, 2023
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Kenichi TANI, Yuuichirou YOSHIDA
  • COMMON-MODE CHOKE COIL AND METHOD OF MANUFACTURING COMMON-MODE CHOKE COIL
    Publication number: 20240194393
    Abstract: A common-mode choke coil includes a core having a winding core portion, a first winding and a second winding. A winding start side region ranges from one end portion to a position where a first winding is brought into contact with the winding core portion, and a winding finish side region ranges from the other end portion to a position where a second winding is brought into contact with the winding core portion. The first winding is wound on the winding core portion such that the first winding is positioned on a negative direction side in an x axis direction with respect to the second winding at the same turn in the winding start side region and the second winding is interposed between the first winding and the winding core portion in the winding finish side region.
    Type: Application
    Filed: February 26, 2024
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki YAMAKITA
  • INDUCTOR COMPONENT
    Publication number: 20240194391
    Abstract: An inductor component includes an element body; a coil provided in the element body and having a spiral shape along an axis; and first and second outer electrodes on or in the element body and electrically connected to the coil. The element body includes first and second end surfaces opposed to each other, first and second side surfaces opposed to each other, a bottom surface connected between the first and second end surfaces and between the first and second side surfaces, and a top surface opposed to the bottom surface. The element body is composed of an insulator. The axis is parallel to the bottom surface and intersects the first side surface and the second side surface. The thickness of each of first through fourth outer coil wiring layers is smaller than the thickness of each of the inner coil wiring layers.
    Type: Application
    Filed: November 30, 2023
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Masaki INUI, Hideki KAMO
  • ANTENNA DEVICE, ANTENNA MODULE, AND COMMUNICATION DEVICE
    Publication number: 20240195079
    Abstract: An antenna device includes a ground substrate including a ground electrode, and a plurality of separate substrates that are mounted on the ground substrate. Each of the plurality of separate substrates includes a dielectric substrate, and a plurality of antenna elements each of which radiates a radio wave whose polarization direction is an X-axis direction and a radio wave whose polarization direction is a Y-axis direction. The plurality of antenna elements are arranged along the X-axis direction and the Y-axis direction on the dielectric substrate on each of the plurality of separate substrates.
    Type: Application
    Filed: February 27, 2024
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Ryo KOMURA
  • MULTILAYER COIL ARRAY
    Publication number: 20240194395
    Abstract: A multilayer coil array includes an element body including a magnetic layer; a first coil inside the element body and including first coil conductor layers in a stacking direction; a second coil inside the element body at a position further from a bottom surface of the element body than the first coil in the stacking direction and including second coil conductor layers in the stacking direction; first and second outer electrodes on the bottom surface of the element body and electrically connected to the first coil; third and fourth outer electrodes on the bottom surface of the element body and electrically connected to the second coil; and a first lead-out conductor inside the element body and connecting, out of end portions of the first coil, an end portion of the first coil conductor layer closest to the second coil to the first outer electrode.
    Type: Application
    Filed: October 2, 2023
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshiko BANNO, Takashi TOMOHIRO, Yuichi OHBA
  • HETEROJUNCTION BIPOLAR TRANSISTOR, SEMICONDUCTOR DEVICE, AND COMMUNICATION MODULE
    Publication number: 20240194770
    Abstract: A heterojunction bipolar transistor includes a collector layer, a base layer, an emitter layer, and a ballast resistance layer. The collector layer is made of an n-type compound semiconductor material. The base layer is disposed on the collector layer and is made of a p-type compound semiconductor material. The emitter layer is disposed on the base layer and is made of an n-type compound semiconductor material having a band gap larger than a band gap of the base layer. The ballast resistance layer is disposed on the emitter layer and is made of an intrinsic or p-type compound semiconductor material.
    Type: Application
    Filed: February 21, 2024
    Publication date: June 13, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takayuki TSUTSUI, Masao KONDO, Shaojun MA
  • Antenna module, communication device equipped with the same, and manufacturing method of antenna module
    Patent number: 12009608
    Abstract: An antenna module includes a dielectric substrate and a radiation element disposed on the dielectric substrate. The dielectric substrate includes a flat portion (131) and a flat portion (130) having mutually different normal directions, and a bent portion connecting the flat portion (131) and the flat portion (130) to each other. The flat portion (131) has a protruding portion partially protruding in a direction toward the flat portion (130) along the flat portion (131) from a boundary portion between the bent portion and the flat portion (131). The flat portion (131) and the bent portion are connected to each other at a position where the protruding portion is not provided in the flat portion (131). At least a part of the radiation element is disposed on the protruding portion.
    Type: Grant
    Filed: February 15, 2023
    Date of Patent: June 11, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshiki Yamada, Michiharu Yokoyama
  • Inductor component
    Patent number: 12009141
    Abstract: An inductor component includes a base having a columnar shape and including a mounting surface parallel with a length direction being a longitudinal direction of the columnar shape and with a width direction orthogonal to the length direction, inductor wiring arranged inside the base, a first outer electrode connected to the inductor wiring and disposed on the mounting surface, and a second outer electrode connected to the inductor wiring and disposed on the mounting surface, the first outer electrode and the second outer electrode arranged in the length direction. When a maximum dimension of the mounting surface in the length direction is L, a maximum dimension of the first outer electrode in the width direction is a, and a maximum dimension of the second outer electrode in the width direction is b, a?L/2<W and b?L/2<W.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: June 11, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshihiro Fujita, Yasuo Matsumoto, Hiromi Miyoshi
  • Transversely-excited film bulk acoustic resonators with electrodes having irregular hexagon cross-sectional shapes
    Patent number: 12009798
    Abstract: Acoustic resonators and filter devices, and method of making acoustic resonators and filter devices. An acoustic resonator includes a substrate having a surface and a piezoelectric plate having front and back surfaces, the back surface attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm that spans a cavity in the substrate. An interdigital transducer (IDT) is formed on the front surface of the piezoelectric plate such that interleaved fingers of the IDT are disposed on the diaphragm. The interleaved fingers have an irregular hexagon cross-sectional shape.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: June 11, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Viktor Plesski, Julius Koskela
  • Magnetic particles, dust core, and coil component
    Patent number: 12009137
    Abstract: Magnetic particles, each including a core made of a magnetic material, and an insulating coating film which covers a surface of the core made of a magnetic material. The insulating coating film is formed of a sol-gel reaction product of a mixture containing a metal alkoxide and an organic phosphoric acid or a salt thereof.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: June 11, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hironobu Kubota, Yuya Ishida
  • Acoustic wave device, high-frequency front-end circuit, and communication device
    Patent number: 12009799
    Abstract: An acoustic wave device includes a support substrate, a piezoelectric layer, and an IDT electrode. The support substrate is made of quartz. The piezoelectric layer is provided on the support substrate and is made of LiTaO3. The IDT electrode is on the piezoelectric layer and includes electrode fingers. The IDT electrode is on a negative surface side of the piezoelectric layer. The cut angle of the piezoelectric layer is equal to or more than about 39° Y and equal to or less than about 48° Y.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: June 11, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hideki Iwamoto
  • Transmission line transformer and amplifying circuit
    Patent number: 12009790
    Abstract: A first transmission line and a third transmission line are disposed at different positions in a thickness direction of a substrate. The third transmission line includes a first end portion connected to one end portion of the first transmission line, and a second end portion that is grounded. The first transmission line is electromagnetically coupled to the third transmission line. The first transmission line has a coil pattern and the third transmission line has a partially open loop pattern.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: June 11, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masatoshi Hase
  • Transversely-excited film bulk acoustic resonator with interdigital transducer with varied mark and pitch
    Patent number: 12009804
    Abstract: Acoustic resonator devices and filters are disclosed. An acoustic resonator includes a piezoelectric plate having front and back surfaces and an interdigital transducer (IDT). The IDT has a first pitch/mark zone with interleaved fingers having a pitch equal to a first pitch value P1 and a mark equal to a first mark value M1, and a second pitch/mark zone with interleaved fingers having a pitch equal to a second pitch value P2 and a mark equal to a second mark value M2. A radio frequency signal applied to the IDT causes excitation of a same shear primary acoustic mode by both the first pitch/mark zone and the second pitch/mark zone. P1, M1, P2, and M2, are selected such that an amplitude of spurious modes is reduced as compared to a device having a same primary acoustic mode and a single pitch/mark zone.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: June 11, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Ventsislav Yantchev
  • RFID tag manufacturing system
    Patent number: 12005670
    Abstract: An RFID tag manufacturing system is provided that includes a conveyance device that conveys a base sheet provided with a plurality of antenna patterns to each of which an RFIC module is fixed. The system includes a laminating device that attaches a cover seal on the base sheet to cover the antenna patterns and a punching device that produces RFID tags by punching the cover seal and the base sheet with a punching blade that includes a frame-shaped cutting edge surrounding the antenna patterns to form a frame-shaped cut. The base sheet includes alignment mark in a non-attachment part of the cover seal. The punching device specifies the position of each of the antenna patterns covered with the cover seal based on the alignment mark, and punches the cover seal and the base sheet based on the specified position of the antenna pattern.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: June 11, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshinori Yamawaki, Noboru Kato, Ryosuke Washida
  • Semiconductor device
    Patent number: 12009359
    Abstract: A semiconductor having transistors arranged side by side in one direction over a surface of a substrate and are connected in parallel. At least one passive element is disposed on at least one of regions between two adjacent ones of the transistors. The transistors each include a collector layer over the substrate, a base layer on the collector layer, and an emitter layer on the base layer. Collector electrodes are arranged in such a manner that each of the collector electrodes is located between the substrate and the collector layer of the corresponding one of the transistors and is electrically connected to the collector layer.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: June 11, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shinnosuke Takahashi, Masayuki Aoike, Takayuki Tsutsui, Shigeki Koya