Patents Assigned to Murata Manufacturing
  • Circuit module including metal plate in contact with electrode portions
    Patent number: 11973421
    Abstract: A circuit module includes a substrate, a DC/DC converter mounted on the substrate, and a capacitor including a pair of electrodes each including an upper electrode portion facing the second main surface, a lower electrode portion opposing the upper electrode portion, and a side-surface electrode portion connecting the upper electrode portion and the lower electrode portion. The circuit module includes metal plates connected to the substrate and exposed to the outside. The metal plates are in contact with the lower electrode portion and the side-surface electrode portion. The metal plates are in contact with the lower electrode portion and the side-surface electrode portion.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yasuhiro Yoto
  • Multilayer ceramic capacitor
    Patent number: 11972905
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric ceramic layers and internal electrode layers laminated alternately in a lamination direction, and a pair of external electrodes on both end portions in the length direction of the multilayer body and respectively connected to the internal electrode layers. The pair of external electrodes each include a base region covering at least each of the first and second end surfaces and connected to the internal electrode layers, and a cover region on the base region to cover the base region. The cover region includes maximum thickness portions each including a maximum thickness in the cover region, in a region corresponding to the ranges of about ±10 ?m in the lamination direction centered around internal electrode layers at both outermost ends in the lamination direction among the internal electrode layers.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yukie Watanabe
  • Lithium polymer battery
    Patent number: 11973187
    Abstract: A lithium polymer battery is provided. The lithium polymer battery includes a laminate film as an exterior material including a metal foil. The lithium polymer battery further includes a first electrode including the metal foil and a first electrode active material layer provided on the metal foil; a second electrode including a second electrode current collector and a second electrode active material layer provided on the second electrode current collector, and a polymer electrolyte provided at an interface between the metal foil 11 and the first electrode active material layer.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 30, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Koji Hattori, Shuichi Nagaoka, Kenji Oshima
  • Wireless communication device
    Patent number: 11973281
    Abstract: An RFID tag is provided that transmits and receives a communication signal. The RFID tag includes a base material, an antenna pattern provided on the base material, and an expansion member. The expansion member is disposed adjacent to the antenna pattern and has a coefficient of linear expansion that is higher than coefficients of linear expansion of the antenna pattern. When the RFID tag is subjected to an electromagnetic wave heating microwave, and thus the temperature of each portion rises, the antenna pattern breaks at a position of the expansion member. With this configuration, ignition and combustion are able to be prevented even in a situation in which the RFID tag is subjected to high-frequency power for heating a food item while being attached to the food item.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Hirokazu Yazaki
  • Method for producing multilayer ceramic electronic component and disappearing ink
    Patent number: 11972901
    Abstract: A method to produce a multilayer ceramic electronic component includes forming supports by an ink jet printing method to produce a green multilayer ceramic capacitor. A green ceramic layer and outer electrodes of the multilayer ceramic electronic component are formed by the ink jet printing method while the supports define peripheries of the green ceramic layer and the outer electrodes. When fired, the green multilayer ceramic electronic component is converted to a sintered multilayer ceramic electronic component, and the supports disappear by heating.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Takashi Ohara
  • Acoustic wave device and ladder filter
    Patent number: 11973487
    Abstract: An acoustic wave device includes an IDT electrode on a piezoelectric body and the IDT electrode includes first and second busbars, and first and second electrode fingers. A first dielectric film extends from a region between tip end portions of the first electrode fingers and the piezoelectric body to a region between the second busbar and the piezoelectric body with a first gap in between. The second electrode fingers are in direct contact with the piezoelectric body at a center of an overlap width, and a permittivity of the first dielectric film is lower than a permittivity of the piezoelectric body.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Katsuya Daimon
  • Power divider
    Patent number: 11972894
    Abstract: A power divider includes a first inductor connected between a first terminal and a second terminal, a second inductor connected between the first terminal and a third terminal, a resistor connected between a second terminal side of the first inductor and a third terminal side of the second inductor, a third inductor connected between a connection portion between the first inductor and the resistor, and the second terminal, a fourth inductor connected between a connection portion between the second inductor and the resistor, and the third terminal, a fourth capacitor connected in parallel with the resistor, and a fifth capacitor connected between the second terminal and the third terminal.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Makoto Ogata, Takuya Sato
  • Optical unit and vehicle including optical unit
    Patent number: 11970118
    Abstract: An optical unit includes an optical sensor, a protective cover disposed in a direction of view from the optical sensor, an actuator to drive the protective cover, and a casing including a space between the casing and the protective cover and to which the optical sensor and the protective cover are attached. A first region on the casing adjacent to an outer edge of the protective cover with the space interposed between the casing and the outer edge of the protective cover is a hydrophobic region where a contact angle of a droplet is equal to or larger than a predetermined angle.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kenji Nishiyama, Yasuhiro Shimizu, Masaki Nagata
  • Multilayer ceramic capacitor
    Patent number: 11972903
    Abstract: A multilayer ceramic capacitor includes a multilayer body including a plurality of dielectric layers and a plurality of internal electrodes, wherein the dielectric layers and the internal electrodes are stacked alternately; and external electrodes provided on end surfaces of the multilayer body and electrically connected to the internal electrodes, wherein the dielectric layers each include main crystal grains including calcium and/or strontium, and zirconium; and an additive component including lithium, the internal electrodes include copper, and the dielectric layers have lithium concentrations with a standard deviation of about 1.03 atomic percent or less in the thickness direction.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tatsuya Izumi, Yuu Mikami
  • Multilayer ceramic capacitor
    Patent number: 11972900
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers alternately laminated therein, first and second main surfaces opposing each other in a lamination direction, first and second end surfaces opposing each other in a length direction which intersects the lamination direction, and first and second side surfaces opposing each other in a width direction which intersects the lamination direction and the length direction, and external electrodes on the first and second end surfaces, and each electrically connected to the internal electrode layers, wherein the multilayer body includes a slit in at least one of the first side surface, the second side surface, and the second main surface defining and functioning as a board-mounting surface.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yoshiyuki Abe
  • Inductor component
    Patent number: 11972887
    Abstract: An inductor component that includes a core that includes a substantially column-shaped shaft part and a pair of support parts at both ends of the shaft part; terminal electrodes that are respectively provided on the pair of support parts; and a wire that is wound around the shaft part and has end portions that are respectively connected to the terminal electrodes on the pair of support parts. The inductor component exhibits an impedance value of 2100? or higher for an input signal having a frequency of 500 MHz.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: April 30, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Sunao Noya, Akira Tanaka, Koji Okuda, Tomotaka Gotohda
  • Transversely-excited film bulk acoustic resonator matrix filters with split die sub-filters
    Patent number: 11973489
    Abstract: A radio frequency filter includes at least a first sub-filter and a second sub-filter connected in parallel between a first port and a second port. Each of the sub-filters has a piezoelectric plate having front and back surfaces, the back surface attached to a substrate, and portions of the piezoelectric plate forming diaphragms spanning respective cavities in the substrate. A conductor pattern is formed on the front surface of the plate, the conductor pattern includes interdigital transducers (IDTs) of a respective plurality of resonators, with interleaved fingers of each IDT disposed on a respective diaphragm of the plurality of diaphragms. A thickness of the portions of the piezoelectric plate of the first sub-filter is different from a thickness of the portions of the piezoelectric plate of the second sub-filter.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Andrew Guyette, Neal Fenzi, Greg Dyer, Sean McHugh
  • Antenna device and communication apparatus
    Patent number: 11973279
    Abstract: A patch antenna is constituted by a radiation element disposed on a substrate and a ground conductor disposed in the substrate. A dielectric member is disposed to cover the radiation element and a body of a resin material is disposed to cover the dielectric material as viewed from above. The dielectric member is disposed on a side opposite a side on which the ground conductor is disposed as viewed from the radiation element. When a direction of a normal line to the radiation element is assumed as a height direction, a line which links centroids of horizontal sectional surfaces of the dielectric member in the height direction leans with respect to the direction of the normal line to the radiation element.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: April 30, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Dai Futagami, Takaya Nemoto
  • COIL COMPONENT
    Publication number: 20240136106
    Abstract: A coil component in which stress is relieved and a coil is stably positioned is to be provided. A coil component of the present disclosure includes a base body; and a coil provided in the base body. The base body includes a plurality of laminated magnetic layers. The coil includes a plurality of laminated coil wirings. The magnetic layers and the coil wirings are alternately laminated. A gap portion is provided between each of the magnetic layers and each of the coil wirings. Part of the coil wirings contacts the magnetic layers, and a region containing a metal oxide is present on part of a surface of each of the coil wirings on a side of the gap portion.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hiromitsu YAMANAKA, Masayuki OISHI
  • INDUCTOR COMPONENT
    Publication number: 20240136118
    Abstract: An inductor component includes an element body and an inductor wiring. The element body has a planar first main surface. The inductor wiring extends inside the element body. The inductor wiring includes a plurality of wiring portions arrayed in a direction perpendicular to the first main surface. The element body includes a plurality of interlayer insulating layers filling spaces between the wiring portions that are adjacent to each other in a direction perpendicular to the first main surface. The interlayer insulating layers each contain an insulating base material and a plurality of filler particles dispersed within the base material. In a first interlayer insulating layer, which is one of the plurality of interlayer insulating layers, the average particle size of the filler particles is less than or equal to the standard deviation of the thickness of the first interlayer insulating layer.
    Type: Application
    Filed: October 16, 2023
    Publication date: April 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Rikiya SANO, Isamu MIYAKE, Kenta KONDO
  • COMPOSITE COMPONENT
    Publication number: 20240136268
    Abstract: A composite component includes an Si base layer that has first and second main surfaces that are opposite to each other, a rerouting layer on the first main surface, a through-silicon via that is electrically connected to the rerouting layer, and that extends through the Si base layer, and an electronic component layer on the second main surface of the Si base layer, and that includes electronic components each including an electronic component body and a component electrode on the electronic component body. The component electrode is connected to the through-silicon via. One or more of the electronic components have a curved shape that is curved to protrude in a mount direction in a cross-sectional view. A mount surface of the composite component corresponds to the curved shape in a cross-sectional view, and includes one or more first curved surfaces that are curved to protrude in the mount direction.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshiaki SATAKE, Tatsuya FUNAKI, Kei ARAI
  • INDUCTOR COMPONENT
    Publication number: 20240136107
    Abstract: An inductor component includes an element body and inductor wiring. Among outer surfaces of the element body, one specific surface is defined as a first main surface, one surface perpendicular to the first main surface is defined as a first end surface, and one surface perpendicular to the first main surface and the first end surface is defined as a bottom surface. The inductor wiring includes a winding portion. The winding portion includes an upper side portion, a lower side portion, and a first lateral side portion. The first lateral side portion linearly extends from an end of the lower side portion facing the first end surface to the same position as that of an end of the upper side portion facing the first end surface in a direction perpendicular to the first end surface.
    Type: Application
    Filed: October 18, 2023
    Publication date: April 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Shingo SAKAGUCHI
  • INDUCTOR COMPONENT
    Publication number: 20240136115
    Abstract: An inductor component includes an element body and inductor wiring. The element body has first and second electrodes connected to first and second ends of the inductor wiring, respectively. One outer surface of the element body is a first main surface, one surface perpendicular to the first main surface is a first end surface, and one surface perpendicular to the first main and end surfaces is a bottom surface. The first electrode includes a first bottom surface electrode portion and a first end surface electrode portion. A size of the first bottom surface electrode portion in a direction perpendicular to the bottom surface is a thickness, and a portion of the first bottom surface electrode portion farthest from the first end surface is a leading end. The thickness of at least part of the first bottom surface electrode portion including the leading end decreases toward the leading end.
    Type: Application
    Filed: August 8, 2023
    Publication date: April 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Shingo SAKAGUCHI
  • Pulse-Shaping Networks with Coupled Magnetics
    Publication number: 20240136991
    Abstract: A pulse-shaping network configured for use in a radio frequency (rf) power amplifier system, the pulse-shaping network comprising: a coupled magnetic element comprising a first inductive element magnetically coupled to a second inductive element, the first inductive element comprising a first winding disposed about a first portion of a core, and the second inductive element comprising a second winding disposed about a second portion of a core, wherein the first and second inductive elements are electrically coupled to provide three output terminals of the coupled magnetic element.
    Type: Application
    Filed: March 17, 2023
    Publication date: April 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: John R. HOVERSTEN, David J. PERREAULT, Yevgeniy A. TKACHENKO
  • Power Transmission Gate Using Charge Pump
    Publication number: 20240137018
    Abstract: Described is a power transmission gate which includes a charge pump, an NMOS transistor, and a gate driver circuit configured to power (or bias or “drive”) a gate of the NMOS transistor. With this arrangement, a power transmission gate capable of achieving substantially the same resistance provided by prior art power transmission gates while having a footprint of just over one NMOS size unit is provided.
    Type: Application
    Filed: September 11, 2023
    Publication date: April 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Aaron COOK, David J. PERREAULT, John R. HOVERSTEN