Murata Manufacturing Co., Ltd. patent applications on March 27th, 2025
Patent Applications by Murata Manufacturing Co., Ltd. on March 27th, 2025
Murata Manufacturing Co., Ltd.: 31 patent applications
Murata Manufacturing Co., Ltd. has applied for patents in the areas of H01M10/0587 (6), H01M4/02 (6), H01M50/107 (5), H01M10/0525 (4), H03H9/02 (3) H01M10/0587 (4), H03F1/0288 (2), A61B5/4088 (1), H01M10/0567 (1), H05K1/0277 (1)
With keywords such as: electrode, direction, part, layer, positive, surface, material, body, portion, and amplifier in patent application abstracts.
Patent Applications by Murata Manufacturing Co., Ltd.
Inventor(s): Hiroshi KUNIMATSU of Kyoto JP for murata manufacturing co., ltd., Yuji NIHEI of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): A61B5/00, A61B5/11, A61B5/12, A61B5/372, A61B5/378, A61B5/38, G16H50/30
CPC Code(s): A61B5/4088
Abstract: a cognitive function assessment device includes a brain signal detection part, a response motion detection part, and a computation part. the brain signal detection part detects a brain signal of a subject occurring in response to a stimulus. the response motion detection part detects a response motion of the subject occurring in response to the stimulus and outputs a response signal. the computation part detects an event-related potential and a motor readiness potential from the brain signal, calculates a response speed from the response signal, and assesses cognitive function on the basis of the event-related potential, the motor readiness potential, and the response speed.
Inventor(s): Takanori NAKAMURA of Nagaokakyo-shi JP for murata manufacturing co., ltd., Takahiro NAGAI of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): A61K9/00, A61B5/00, A61M31/00, H02J50/10
CPC Code(s): A61K9/0009
Abstract: a capsule medication device is provided that includes a housing having a capsule shape, a substrate disposed inside the housing, a power receiving coil on the substrate, and a secondary battery that can be charged with power received by the power receiving coil. a gravity center of the capsule medication device not located at a center of a cut face when the capsule medication device is cut along a plane that passes through the gravity center and is orthogonal to the longitudinal direction of the capsule medication device, and is located to overlap the substrate in a view along a direction orthogonal to the substrate.
20250099706. CPAP APPARATUS_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Atsushi HATTORI of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): A61M16/10
CPC Code(s): A61M16/1075
Abstract: a receiving unit of a cpap apparatus includes a base member, a receiving case, a heating unit, and an elastic member. the receiving case is disposed on an upper side of the base member and includes an opening formed in a lower wall. the heating unit is disposed between the base member and the lower wall of the receiving case. the elastic member is disposed on the base member and holds the heating unit. the heating unit includes a heating element and a thermal conductor. the thermal conductor is disposed on an upper side of the heating element, has a shape wider than a shape of the heating element when the heating element is viewed from the receiving unit in plan view, and includes a peripheral portion that does not overlap the heating element.
Inventor(s): Sami NURMI of Tuusula FI for murata manufacturing co., ltd.
IPC Code(s): B08B7/00, H01L23/00
CPC Code(s): B08B7/00
Abstract: an electronic component is provided that includes a package, at least one electronic chip housed within an enclosure inside the package, and at least one first bonding pad, at least one second bonding pad, and at least one bond connected to at least one bonding pad and at least one second bonding pad for establishing an electric connection between the electronic chip and surrounding circuitry. a cleaning pad is provided in the package. the cleaning pad is spaced from first bonding pad and second bonding pad, designed to be electrically disconnected from other structures or components, and designed to enable cleaning of a bonding tool.
Inventor(s): Mitsunori NAKAMOTO of Kyoto JP for murata manufacturing co., ltd., Kouta ENDOU of Kyoto JP for murata manufacturing co., ltd., Kikou YAMAGUCHI of Kyoto JP for murata manufacturing co., ltd., Shinichi KATAYAMA of Kyoto JP for murata manufacturing co., ltd., Izaya OKAE of Kyoto JP for murata manufacturing co., ltd., Yasuhiro UMEBAYASHI of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): G01N27/02, G01N27/06
CPC Code(s): G01N27/026
Abstract: an analysis method includes: calculating dynamical behavior of a series of atoms included in a constituent component of an electrolytic solution by performing a molecular dynamics calculation regarding the electrolytic solution; calculating a first dielectric relaxation spectrum signal of the constituent component, based on the dynamical behavior of the series of atoms; calculating a second dielectric relaxation spectrum signal of the electrolytic solution, based on the first dielectric relaxation spectrum signal; and calculating a physical property value unique to the constituent component, based on the first dielectric relaxation spectrum signal and the second dielectric relaxation spectrum signal.
20250104899. COIL COMPONENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yasuhiro ITANI of Nagaokakyo-shi JP for murata manufacturing co., ltd., Takashi SUKEGAWA of Nagaokakyo-shi JP for murata manufacturing co., ltd., Takanori SUZUKI of Nagaokakyo-shi JP for murata manufacturing co., ltd., Yuuki KITADAI of Nagaokakyo-shi JP for murata manufacturing co., ltd., Yoshifumi MAKI of Nagaokakyo-shi JP for murata manufacturing co., ltd., Reiichi MATSUBA of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H01F17/04, H01F27/02, H01F27/28, H01F27/29, H01F27/30, H01F41/02, H01F41/06
CPC Code(s): H01F17/045
Abstract: a coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. the winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.
Inventor(s): Akinori HAMADA of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H01F27/29, H01F27/02, H01F27/245, H01F27/28, H01F41/00
CPC Code(s): H01F27/292
Abstract: a multilayer inductor includes a body. the body includes, within a magnetic member having a stack of magnetic layers containing iron powder, a coil including a coil conductor wound around and a through conductor that is electrically connected to the coil conductor and exposed in a bottom surface of the magnetic member. the multilayer inductor also includes an outer electrode that is on the through conductor and is electrically connected to the through conductor; and an exterior resin layer on the bottom surface of the magnetic member. the outer electrode includes protrusions that protrude perpendicular to a stacking direction of the magnetic layers in an upper end portion on a far side from the through conductor and a lower end portion on a near side from the through conductor in the stacking direction. the exterior resin layer extends across between the protrusions in the upper and lower end portions.
Inventor(s): Shoji OKA of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H01G2/02, H01G4/224, H01G4/236, H01G4/38
CPC Code(s): H01G2/02
Abstract: a capacitor including: a capacitor element including a body and an external electrode on an end surface of the body; a lead-out terminal electrically connected to the external electrode; an outer case housing the capacitor element such that the lead-out terminal protrudes outward therefrom, wherein an outer surface of the outer case includes a mounting surface that faces a mounting object in a first direction when the lead-out terminal is welded to the mounting object; a filling resin filling the outer case such that the capacitor element is embedded in the filling resin; and a mounting foot on the outer surface of the outer case for welding the outer case to the mounting object at the mounting surface, the mounting foot being electrically isolated from the lead-out terminal and including a metal material of a same type as that of the lead-out terminal.
20250104917. MULTILAYER CERAMIC CAPACITOR_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Keisuke ARAKI of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H01G4/12, H01G4/30
CPC Code(s): H01G4/1227
Abstract: a multilayer ceramic capacitor includes dielectric layers including at least ti, a region in a center portion in a width direction and a lamination direction of the dielectric layers with a dimension in the width direction of about 800 nm and a dimension in the lamination direction of about 1 nm is divided into 800 cells with a size of a dimension in the width direction of about 1 nm and a dimension in the lamination direction of about 1 nm. when a cell in which a mole ratio of rare earths is about 5 mol % or more with respect to 100 mol of ti is a high concentration cell, about 75% or more and less than about 100% of the 800 cells in the region are high concentration cells.
Inventor(s): Ken TOMINAGA of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H01G4/232, H01G4/30
CPC Code(s): H01G4/2325
Abstract: a multilayer ceramic electronic component includes a multilayer body, first and second outer electrodes respectively extending from first and second end surfaces of the multilayer body to each of first and second main surfaces. the first outer electrode includes a first main surface inclined portion extending from the first main surface side of the multilayer body to the first end surface side. the second outer electrode includes a second main surface inclined portion extending from the first main surface side of the multilayer body to the second end surface side. the first main surface inclined portion covers a ridge portion defined by the first main surface and the first end surface of the multilayer body. the second main surface inclined portion covers a ridge portion defined by the first main surface and the second end surface of the multilayer body.
20250104932. CAPACITOR ELEMENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Sachiko YOSHINO of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H01G9/10, H01G9/012, H01G9/028, H01G9/07, H01G9/15
CPC Code(s): H01G9/10
Abstract: a capacitor element that includes: a capacitor part including: an anode plate having a core and a porous part on at least one major face of the core, a dielectric layer on a surface of the porous part, and a cathode layer on a surface of the dielectric layer; a sealing layer that seals the capacitor part; and an insulating layer inside the sealing layer at a position where the insulating layer does not contact the cathode layer, wherein the insulating layer has a young's modulus lower than a young's modulus of the sealing layer.
20250104933. CAPACITOR ELEMENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Sachiko YOSHINO of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H01G9/15, H01G9/012, H01G9/10
CPC Code(s): H01G9/15
Abstract: a capacitor element that includes: a capacitor part including: an anode plate having a core and a porous part on at least one major face of the core, a dielectric layer on a surface of the porous part, and a cathode layer on a surface of the dielectric layer; and a sealing layer that seals the capacitor part, wherein a surface of the sealing layer has a slit.
20250105250. SECONDARY BATTERY AND BATTERY PACK_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Toshikazu NAKAMURA of Kyoto JP for murata manufacturing co., ltd., Kei WAKABAYASHI of Kyoto JP for murata manufacturing co., ltd., Yosuke KAIHARA of Kyoto JP for murata manufacturing co., ltd., Yukihiro OKAMOTO of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M4/13, H01M10/0525, H01M10/0587, H01M10/42, H01M50/107
CPC Code(s): H01M4/13
Abstract: a secondary battery includes a stacked body including a positive electrode, a negative electrode, and a separator. the positive electrode includes a positive electrode active material layer, a positive electrode current collector, and an insulating layer. the positive electrode current collector includes a positive electrode covered region and a positive electrode exposed region. the positive electrode exposed region is not covered with the positive electrode active material layer and extends in a width direction from the positive electrode active material layer. the insulating layer extends along a first edge of the positive electrode active material layer. the first edge is located at a border between the positive electrode covered region and the positive electrode exposed region. the positive electrode active material layer includes a first thin part and a first thick part that is adjacent to the first thin part in the width direction.
Inventor(s): Yasuhiro IKEDA of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M4/36, H01M4/02, H01M4/38, H01M4/587, H01M10/0525
CPC Code(s): H01M4/364
Abstract: a negative electrode active material includes a first negative electrode active material particle, and the first negative electrode active material includes a silicon-based material. a si2p spectrum obtained by measuring the first negative electrode active material particle in a state of 0.6 v (vs. li/li) by x-ray photoelectron spectroscopy has a peak in a range from 99.0 ev to 105.0 ev, and a half width of the peak is 1.5 ev or more and 8.0 ev or less.
Inventor(s): Tomomi SAKUMA of Kyoto JP for murata manufacturing co., ltd., Kentaro YOSHIMURA of Kyoto JP for murata manufacturing co., ltd., Mashio SHIBUYA of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M10/0567, H01M10/0525, H01M10/0568, H01M10/0569
CPC Code(s): H01M10/0567
Abstract: a secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution, and the electrolytic solution contains a phenyl isothiocyanate compound represented by formula (1).
20250105362. SECONDARY BATTERY AND BATTERY PACK_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Toshikazu NAKAMURA of Kyoto JP for murata manufacturing co., ltd., Kei WAKABAYASHI of Kyoto JP for murata manufacturing co., ltd., Yosuke KAIHARA of Kyoto JP for murata manufacturing co., ltd., Yukihiro OKAMOTO of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M10/0587, H01M4/02, H01M50/107
CPC Code(s): H01M10/0587
Abstract: a secondary battery includes an electrode wound body and an outer package can containing the electrode wound body. the electrode wound body includes a stacked body including a positive electrode, a negative electrode, and a separator and being wound along a longitudinal direction thereof, and has a through hole in a width direction. the positive electrode includes a positive electrode current collector, and a positive electrode active material layer provided thereon. the positive electrode active material layer includes a first thin part, a thick part, and a second thin part. the thick part has a thickness greater than a thickness of the first thin part and is adjacent to the first thin part in the longitudinal direction. the second thin part has a thickness smaller than the thickness of the thick part and is positioned on an opposite side of the thick part to the first thin part.
20250105363. SECONDARY BATTERY AND BATTERY PACK_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Toshikazu NAKAMURA of Kyoto JP for murata manufacturing co., ltd., Kei WAKABAYASHI of Kyoto JP for murata manufacturing co., ltd., Yosuke KAIHARA of Kyoto JP for murata manufacturing co., ltd., Yukihiro OKAMOTO of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M10/0587, H01M4/02, H01M50/107, H01M50/503
CPC Code(s): H01M10/0587
Abstract: a secondary battery includes an electrode wound body and an outer package can containing the electrode wound body. the positive electrode includes a positive electrode current collector and first and second positive electrode active material layers. each of the first and second positive electrode active material layers includes a first thin part and a first thick part having a thickness greater than that of the first thin part and being adjacent to the first thin part in a longitudinal direction. a position of a first border between the first thin part of the first positive electrode active material layer and the first thick part of the first positive electrode active material layer and a position of a second border between the first thin part of the second positive electrode active material layer and the first thick part of the second positive electrode active material layer are different from each other.
20250105364. SECONDARY BATTERY AND BATTERY PACK_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yosuke KAIHARA of Kyoto JP for murata manufacturing co., ltd., Toshikazu NAKAMURA of Kyoto JP for murata manufacturing co., ltd., Yukihiro OKAMOTO of Kyoto JP for murata manufacturing co., ltd., Kei WAKABAYASHI of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M10/0587, H01M4/02, H01M50/107
CPC Code(s): H01M10/0587
Abstract: a secondary battery includes an electrode wound body. the electrode wound body includes a stacked body including a positive electrode, a negative electrode, and a separator and wound along a longitudinal direction thereof, and has a through hole in a width direction. the positive electrode includes a positive electrode active material layer, and a positive electrode current collector including a positive electrode covered region and a positive electrode exposed region. the positive electrode covered region is covered with the positive electrode active material layer. the positive electrode exposed region is covered with no positive electrode active material layer and extends in the width direction from the positive electrode active material layer. the positive electrode active material layer includes a first thin part, and a first thick part having a thickness greater than that of the first thin part and being adjacent to the first thin part in the width direction.
Inventor(s): Akira SHINKAWA of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M10/0587, H01M4/02, H01M4/04, H01M4/131, H01M4/133, H01M4/1391, H01M4/1393, H01M4/66, H01M10/0525, H01M50/533, H01M50/534, H01M50/536
CPC Code(s): H01M10/0587
Abstract: a secondary battery having higher reliability is provided. the secondary battery includes an electrode wound body, a first electrode current collector plate, and a second electrode current collector plate. the electrode wound body includes a stacked body including a first electrode and a second electrode that are stacked with a separator interposed therebetween. the stacked body is wound around a central axis extending in a first direction. the electrode wound body includes a first end face and a second end face that are opposed to each other in the first direction. the first electrode current collector plate faces the first end face of the electrode wound body and is coupled to the first electrode. the second electrode current collector plate faces the second end face of the electrode wound body and is coupled to the second electrode. the first electrode includes a first electrode covered region in which a first electrode current collector is covered with a first electrode active material layer, and a first electrode exposed region in which the first electrode current collector is exposed without being covered with the first electrode active material layer. the first electrode exposed region includes multiple first edge parts that are adjacent to each other in a radial direction of the electrode wound body. the multiple first edge parts are bent toward the central axis and overlap each other to form the first end face. the multiple first edge parts each have an end including a first curved face.
20250105463. SECONDARY BATTERY AND BATTERY PACK_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Toshikazu NAKAMURA of Kyoto JP for murata manufacturing co., ltd., Kei WAKABAYASHI of Kyoto JP for murata manufacturing co., ltd., Yosuke KAIHARA of Kyoto JP for murata manufacturing co., ltd., Yukihiro OKAMOTO of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H01M50/503, H01M4/02, H01M10/0587, H01M50/107
CPC Code(s): H01M50/503
Abstract: a secondary battery includes an electrode wound body and an outer package can containing the electrode wound body. the electrode wound body includes a stacked body including a positive electrode, a negative electrode, and a separator and being wound along a longitudinal direction thereof, and has a through hole provided through the electrode wound body in a width direction. the positive electrode includes a positive electrode current collector extending in both the longitudinal direction and the width direction, and a positive electrode active material layer provided thereon. the positive electrode active material layer includes a first thin part, a thick part, and a grooved part. the thick part has a thickness greater than a thickness of the first thin part and is adjacent to the first thin part in the longitudinal direction. the grooved part is positioned between the first thin part and the thick part.
20250105695. STATOR AND MOTOR_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Kazuki IWASAKI of Nagaokakyo-shi JP for murata manufacturing co., ltd., Takashi MOCHIDA of Nagaokakyo-shi JP for murata manufacturing co., ltd., Mitsutoshi NATSUMEDA of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H02K3/52
CPC Code(s): H02K3/522
Abstract: a device is provided that includes a stator core having a molded body of magnetic powder that includes an annular yoke extending circumferentially and a tooth protruding radially from the yoke's inner surface. the device further includes a coil that includes a winding wire wound around the tooth. a terminal plate is fixed to the axial end surface of the yoke and includes a plate portion and a terminal portion. the plate portion features a first main surface on the side of the yoke's end surface and a second main surface on the opposite side. the terminal portion extends axially from the second main surface. one end of the winding wire is fixed to the terminal portion by being bound around it. this configuration facilitates electrical connection and structural integration within the stator core.
20250105740. POWER SUPPLY DEVICE AND PROGRAM_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Kenta FUJII of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H02M3/158
CPC Code(s): H02M3/158
Abstract: a power supply device includes an input terminal to which a direct-current power supply can be connected, an output terminal, a power converter circuit, a first switch placed between the input terminal and a power converter circuit, a second switch placed between the power converter circuit and the output terminal, and a controller configured to control the first switch and the second switch to switch between an on-state and an off-state. for cutting off an electrical connection between the input terminal and the output terminal, the controller is configured to switch the first switch into an off-state and thereafter switch the second switch into an off-state.
20250105793. DOHERTY AMPLIFIER CIRCUIT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Shohei IMAI of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H03F1/02, H03F3/24, H03F3/45
CPC Code(s): H03F1/0288
Abstract: a first bias circuit, a second bias circuit, a first differential amplifier, a second differential amplifier, and an inverting amplifier are included. the first bias circuit has: a first bias output terminal from which first bias current or a voltage is output to a carrier amplifier; and a first monitoring terminal from which a first monitoring signal is output. the second bias circuit has: a second bias output terminal from which second bias current or a voltage is output to a peaking amplifier; and a second monitoring terminal from which a second monitoring signal is output. the first differential amplifier outputs the first bias control signal. the second differential amplifier outputs an amplified signal. the inverting amplifier outputs the second bias control signal resulting from inverting amplification of the amplified signal.
20250105794. POWER AMPLIFICATION DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Jun ENOMOTO of Kyoto JP for murata manufacturing co., ltd., Shohei IMAI of Kyoto JP for murata manufacturing co., ltd., Hideyuki SATO of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H03F1/02, H03F3/24, H03F3/45, H03F3/60
CPC Code(s): H03F1/0288
Abstract: a substrate and a chip device mounted on a main surface of the substrate are provided. the chip device is provided with a first differential amplifier including a first carrier amplifier and a second carrier amplifier, and a second differential amplifier including a first peak amplifier and a second peak amplifier. in the chip device, the first carrier amplifier and the second carrier amplifier are disposed side by side in a first direction, the first carrier amplifier and the first peak amplifier are disposed side by side in a second direction different from the first direction, the first peak amplifier and the second peak amplifier are disposed side by side in the first direction, and the second carrier amplifier and the second peak amplifier are disposed side by side in the second direction.
20250105798. CLAMPING CIRCUIT AND AMPLIFIER_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Satoshi GOTO of Kyoto JP for murata manufacturing co., ltd., Masao KONDO of Kyoto JP for murata manufacturing co., ltd., Kenji SASAKI of Kyoto JP for murata manufacturing co., ltd., Shinnosuke TAKAHASHI of Kyoto JP for murata manufacturing co., ltd.
IPC Code(s): H03F1/52, H03F3/24
CPC Code(s): H03F1/52
Abstract: a clamping circuit is connected between a ground potential and a node through which a radio frequency signal passes. the clamping circuit includes multiple clamping elements that are cascaded. each of the multiple clamping elements becomes conductive when a voltage greater than or equal to a forward voltage is applied thereto. at least one of the multiple clamping elements is implemented by a resistor-connected transistor that includes a bipolar transistor and a base-collector resistance element connected between the base and the collector of the bipolar transistor.
Inventor(s): Ventsislav Yantchev of Sofia BG for murata manufacturing co., ltd., Bryant Garcia of Mississauga CA for murata manufacturing co., ltd., Viktor Plesski of Gorgier CH for murata manufacturing co., ltd., Soumya Yandrapalli of Amsterdam NL for murata manufacturing co., ltd., Robert B. Hammond of Rockville MD US for murata manufacturing co., ltd., Patrick Turner of Portola Valley CA US for murata manufacturing co., ltd., Jesson John of Dublin CA US for murata manufacturing co., ltd.
IPC Code(s): H03H9/02, H03H3/02, H03H9/13, H03H9/17, H03H9/56
CPC Code(s): H03H9/02228
Abstract: resonator and filter devices and methods of fabrication. a resonator chip includes a substrate, a piezoelectric plate, and an acoustic bragg reflector between the substrate and a back surface of the piezoelectric plate. a conductor pattern on a surface of the piezoelectric plate includes a first plurality of contact pads and an interdigital transducer (idt). the acoustic bragg reflector is configured to reflect the shear primary acoustic mode. an interposer has a second plurality of contact pads on a back surface. a seal connects a perimeter of the piezoelectric plate to a perimeter of the interposer. each contact pad of the first plurality of contact pads is directly connected to a respective contact pad of the second plurality of contact pads.
20250105817. ACOUSTIC WAVE DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Hideki IWAMOTO of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H03H9/02
CPC Code(s): H03H9/02574
Abstract: an acoustic wave device includes a support substrate a silicon oxide layer on the support substrate, a lithium niobate layer on the silicon oxide layer, and an idt electrode on the lithium niobate layer. when a wavelength of the idt electrode is denoted as ďż˝, a thickness of the silicon oxide layer is more than or equal to about 0ďż˝. values of t, ďż˝, duty, lncut, t, and tare within ranges that enable bw derived from formula 1 to be about 12% or less and ksaw2 derived from formula 2 to be about 0.1% or less.
Inventor(s): Bryant GARCIA of Mississauga CA for murata manufacturing co., ltd., Tetsuya Kimura of San Mateo CA US for murata manufacturing co., ltd.
IPC Code(s): H03H9/17, H03H9/02, H03H9/13, H03H9/56
CPC Code(s): H03H9/175
Abstract: an acoustic resonator device is provided that includes a substrate; a piezoelectric layer at least partially supported by the substrate; an interdigital transducer (idt) at the piezoelectric layer; an acoustic bragg reflector between the substrate and the piezoelectric layer. the acoustic bragg reflector includes alternating layers of a first material and a second material having a higher acoustic impedance than the first material. thicknesses of the first material and the second material of the acoustic bragg reflector are configured to generate a reflectance frequency band centered around a displaced frequency fâ˛, the displaced frequency fⲠbeing displaced from a resonance frequency fof the acoustic resonator device based on a harmonic spur of the resonance frequency f. in this aspect, the thicknesses of the first material and the second material are measured in a direction normal to the substrate.
Inventor(s): Yuji TAKEMATSU of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H04B1/04, H04B1/00
CPC Code(s): H04B1/04
Abstract: a radio-frequency circuit includes a power amplifier configured to output a first maximum transmit power, a power amplifier configured to output a second maximum transmit power that is higher than the first maximum transmit power, a filter having a pass band that includes a band a, a filter having a pass band that includes a band b different from the band a, a switch coupled between the power amplifier and the filter and between the power amplifier and the filter, and a switch coupled between the switch and the filter and between the power amplifier and the filter.
20250106986. STRETCHABLE WIRING BOARD_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Hayato KATSU of Nagaokakyo-shi JP for murata manufacturing co., ltd., Takayoshi OBATA of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H05K1/02
CPC Code(s): H05K1/0277
Abstract: a stretchable wiring board that includes: a stretchable substrate having a first main surface and a second main surface facing each other in a thickness direction; a wiring member on at least the first main surface side of the stretchable substrate and including at least one stretchable wiring extending in a plane direction including a length direction orthogonal to the thickness direction and a width direction orthogonal to the thickness direction and the length direction; a protective member covering at least one of the first main surface and the second main surface of the stretchable substrate; and a film member on at least one of the stretchable substrate side and a side opposite to the stretchable substrate with respect to the protective member, wherein the film member is constructed such that an appearance of the film member is irreversibly changed when the film member is stretched in the length direction.
20250106989. STRETCHABLE WIRING SUBSTRATE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Hayato KATSU of Nagaokakyo-shi JP for murata manufacturing co., ltd.
IPC Code(s): H05K1/02
CPC Code(s): H05K1/0283
Abstract: a stretchable wiring board that includes: a stretchable substrate having a first main surface and a second main surface facing each other in a thickness direction; and a wiring member on at least the first main surface side of the stretchable substrate and including at least one stretchable wiring extending in a plane direction including a length direction orthogonal to the thickness direction and a width direction orthogonal to the thickness direction and the length direction, wherein the at least one stretchable wiring includes a first wiring portion and a second wiring portion both extending in the length direction, at least the first wiring portion is an electric path to an outside of the stretchable wiring board, and a tensile strength in the length direction of the second wiring portion is lower than a tensile strength in the length direction of the first wiring portion.
Murata Manufacturing Co., Ltd. patent applications on March 27th, 2025
- Murata Manufacturing Co., Ltd.
- A61B5/00
- A61B5/11
- A61B5/12
- A61B5/372
- A61B5/378
- A61B5/38
- G16H50/30
- CPC A61B5/4088
- Murata manufacturing co., ltd.
- A61K9/00
- A61M31/00
- H02J50/10
- CPC A61K9/0009
- A61M16/10
- CPC A61M16/1075
- B08B7/00
- H01L23/00
- CPC B08B7/00
- G01N27/02
- G01N27/06
- CPC G01N27/026
- H01F17/04
- H01F27/02
- H01F27/28
- H01F27/29
- H01F27/30
- H01F41/02
- H01F41/06
- CPC H01F17/045
- H01F27/245
- H01F41/00
- CPC H01F27/292
- H01G2/02
- H01G4/224
- H01G4/236
- H01G4/38
- CPC H01G2/02
- H01G4/12
- H01G4/30
- CPC H01G4/1227
- H01G4/232
- CPC H01G4/2325
- H01G9/10
- H01G9/012
- H01G9/028
- H01G9/07
- H01G9/15
- CPC H01G9/10
- CPC H01G9/15
- H01M4/13
- H01M10/0525
- H01M10/0587
- H01M10/42
- H01M50/107
- CPC H01M4/13
- H01M4/36
- H01M4/02
- H01M4/38
- H01M4/587
- CPC H01M4/364
- H01M10/0567
- H01M10/0568
- H01M10/0569
- CPC H01M10/0567
- CPC H01M10/0587
- H01M50/503
- H01M4/04
- H01M4/131
- H01M4/133
- H01M4/1391
- H01M4/1393
- H01M4/66
- H01M50/533
- H01M50/534
- H01M50/536
- CPC H01M50/503
- H02K3/52
- CPC H02K3/522
- H02M3/158
- CPC H02M3/158
- H03F1/02
- H03F3/24
- H03F3/45
- CPC H03F1/0288
- H03F3/60
- H03F1/52
- CPC H03F1/52
- H03H9/02
- H03H3/02
- H03H9/13
- H03H9/17
- H03H9/56
- CPC H03H9/02228
- CPC H03H9/02574
- CPC H03H9/175
- H04B1/04
- H04B1/00
- CPC H04B1/04
- H05K1/02
- CPC H05K1/0277
- CPC H05K1/0283