Murata Manufacturing Co., Ltd. patent applications on January 23rd, 2025
Patent Applications by Murata Manufacturing Co., Ltd. on January 23rd, 2025
Murata Manufacturing Co., Ltd.: 18 patent applications
Murata Manufacturing Co., Ltd. has applied for patents in the areas of H01G4/30 (4), H01G4/012 (4), H01G4/232 (3), H03H9/02 (3), H03H9/56 (2) H01G4/30 (2), B81B7/0022 (1), H02M3/157 (1), H03H9/14561 (1), H03H9/08 (1)
With keywords such as: electrode, portion, layer, internal, including, piezoelectric, surface, bias, circuit, and direction in patent application abstracts.
Patent Applications by Murata Manufacturing Co., Ltd.
Inventor(s): Hiroshi MATSUBARA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Shinsuke IKEUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Ryosuke NIWA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Gou SAITOU of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): B81B7/00, B81C1/00, H10N30/045
CPC Code(s): B81B7/0022
Abstract: a mems device is provided that includes a piezoelectric element including a piezoelectric membrane including a ferroelectric and configured to vibrate based on an application of a voltage. a device may include a diode portion electrically connected in parallel to the piezoelectric element and including a diode.
Inventor(s): Yohei YAMAGUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Masako TENPAKU of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): G01N33/00, G01N21/3504
CPC Code(s): G01N33/0011
Abstract: a gas concentration measurement device that includes: a waterproof housing including a wall that defines an internal space, the wall including an opening communicating between the internal space and an outside of the housing; a measurement instrument in the internal space, the measurement instrument constructed to measure a concentration of a gas; a gas permeable membrane covering the opening, the gas permeable membrane allowing passage of the gas and substantially blocking passage of moisture; and a driving body constructed to vibrate the gas permeable membrane.
Inventor(s): Yuichi OHBA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01F27/28, H01F27/29
CPC Code(s): H01F27/2804
Abstract: a multilayer inductor includes an element body including magnetic layers laminated in a lamination direction, a first, second, third and fourth external electrodes on a bottom surface of the element body, a first coil including a first winding portion formed by connecting, through vias, end portions of first conductors in different layers of the element body, a first through-conductor that connects one end of the first winding portion that is relatively close to the bottom surface and the first external electrode to each other, and a second through-conductor that connects the other end of the first winding portion that is relatively away from the bottom surface and the second external electrode to each other, and a second coil including a second winding portion.
20250029783. MULTILAYER CERAMIC CAPACITOR_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Kazuhiro NISHIBAYASHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuko KAWASAKI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/012, H01G4/232, H01G4/30
CPC Code(s): H01G4/012
Abstract: a multilayer ceramic capacitor includes end-surface-exposure internal electrodes, lateral-surfaces-exposure internal electrodes, first dielectric layers each having the end-surface-exposure internal electrode thereon, and second dielectric layers each having the lateral-surface-exposure internal electrode thereon. at least one of each first and second dielectric layer includes an auxiliary internal electrode on a portion adjacent to one surface at which the internal electrode is not exposed. the auxiliary internal electrode is spaced apart from the internal electrode, is exposed at the one surface, and is opposed to a lead-out portion of the internal electrode different from and adjacent to the internal electrode. a through hole penetrates through the auxiliary internal electrode and includes a same dielectric as that of the dielectric layers to connect the dielectric layers in contact with the auxiliary internal electrode.
Inventor(s): Shun IWATA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Daichi TANIGUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/12, H01G4/012, H01G4/30
CPC Code(s): H01G4/12
Abstract: in a multilayer ceramic electronic component, the particle size of the ceramic on the first lateral surface of the inner layer portion is smaller than that in the central portion of the inner layer portion in the width direction. the particle size of the ceramic on the second lateral surface of the inner layer portion smaller than that in the central portion of the inner layer portion in the width direction. the particle size of the ceramic at the end of the second internal electrode layer on the first end surface of the inner layer portion is smaller than that in the central portion of the inner layer portion. the particle size of the ceramic at the end of the first internal electrode layer on the second end surface of the inner layer portion is smaller than that in the central portion of the inner layer portion.
20250029789. MULTILAYER CERAMIC CAPACITOR_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Kazuhiro NISHIBAYASHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuko KAWASAKI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/30, H01G4/008, H01G4/012, H01G4/12, H01G4/232
CPC Code(s): H01G4/30
Abstract: a multilayer ceramic capacitor includes an inner layer portion including a first-main-surface-side region, a second-main-surface-side region, and a central region between the first-main-surface-side region and the second-main-surface-side region. in the central region, dielectric layers each between internal electrodes adjacent to each other in a lamination direction and exposed at a same surfaces are in contact with the external electrode at contact portions, and an average of thicknesses of the dielectric layers at the contact portions is referred to as an average thickness lc. in at least one of the first-main-surface-side region or the second-main-surface-side region, dielectric layers each between internal electrodes adjacent to each other in the lamination direction and exposed at the same surface are in contact with the external electrodes at contact portions, and a thickness of the dielectric layer at each contact portion is referred to as a thickness ls and ls<0.75lc is satisfied.
20250029790. ELECTRONIC COMPONENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Haruki KOBAYASHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/30, C04B35/48, H01G4/008, H01G4/012, H01G4/232
CPC Code(s): H01G4/30
Abstract: a multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers laminated alternately on each other, and external electrode layers provided on opposing end surfaces of the multilayer body in a length direction orthogonal or substantially orthogonal to a lamination direction, and each connected with the internal electrode layers, in which the dielectric layers each include at least one of ca, zr, or ti, the internal electrode layers each include cu, and when a dimension in the lamination direction of the multilayer body is defined as t0, a dimension in the length direction of the multilayer body is defined as l0, and a dimension in a width direction orthogonal or substantially orthogonal to the lamination direction and the length direction is defined as w0, a relationship of l0<w0<t0 is satisfied.
Inventor(s): Kazunori Tsuda of Cambridge MA (US) for murata manufacturing co., ltd.
IPC Code(s): H01L25/065, H01L23/00
CPC Code(s): H01L25/0657
Abstract: integrated circuit (ic) packaging concepts that include the attachment of an auxiliary die to a primary die between the terminals of the primary die. the auxiliary die may include one or more capacitors and/or inductors as well as active circuitry (including, for example, vertical fets). in some embodiments, more than one auxiliary ic may be attached (directly or indirectly) to a primary ic. such a multiple ic stack configuration reduces parasitic capacitance and/or inductance compared to conventional side-by-side arrangements, and thus enables higher frequency operation. in power converters, higher operation frequency generally allows a beneficial tradeoff between reducing the capacitance requirement and/or the inductance requirement (if present) for the circuit, and generally improves the energy transfer capability of the power converter.
Inventor(s): Yukihiro KATOU of Kyoto (JP) for murata manufacturing co., ltd., Akiko NAGAHARA of Kyoto (JP) for murata manufacturing co., ltd., Gerile NAREN of Kyoto (JP) for murata manufacturing co., ltd., Hideki NAKAI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/36, H01M4/38, H01M4/525, H01M10/0525, H01M4/02
CPC Code(s): H01M4/366
Abstract: a secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode, and an electrolytic solution. the positive electrode active material contains a layered rock salt-type compound, and the layered rock salt-type compound contains nickel, cobalt, and aluminum as constituent elements. when a sum of contents of nickel, cobalt, and aluminum in the layered rock salt-type compound is regarded as 100 parts by mol, a content of the nickel is 87 parts by mol or more and 100 parts by mol or less, a content of the cobalt is 0 parts by mol or more and 11 parts by mol or less, and a content of the aluminum is 0 parts by mol or more and 8 parts by mol or less. in surface analysis of the positive electrode active material using x-ray photoelectron spectroscopy, a concentration ratio represented by formula (1) is 1.60 or less and an intensity ratio represented by formula (2) is 0.39 or less:
Inventor(s): Yukihiro KATOU of Kyoto (JP) for murata manufacturing co., ltd., Akiko NAGAHARA of Kyoto (JP) for murata manufacturing co., ltd., Gerile NAREN of Kyoto (JP) for murata manufacturing co., ltd., Hideki NAKAI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/36, H01M4/38, H01M4/525, H01M10/0525, H01M4/02
CPC Code(s): H01M4/366
Abstract:
Inventor(s): Yukihiro KATOU of Kyoto (JP) for murata manufacturing co., ltd., Akiko NAGAHARA of Kyoto (JP) for murata manufacturing co., ltd., Gerile NAREN of Kyoto (JP) for murata manufacturing co., ltd., Hideki NAKAI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/36, H01M4/38, H01M4/525, H01M10/0525, H01M4/02
CPC Code(s): H01M4/366
Abstract:
Inventor(s): Kentaro YOSHIMURA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M10/0568, C07C69/606, H01M4/58, H01M4/583, H01M10/0525
CPC Code(s): H01M10/0568
Abstract: a secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. the electrolytic solution includes a triple bond compound and a fluorophosphoric acid salt. the triple bond compound includes a compound represented by formula (1), a compound represented by formula (2), or both. the fluorophosphoric acid salt includes a compound represented by formula (3), a compound represented by formula (4), or both.
20250030105. BATTERY PACK_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yoshiyuki BANNAI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M50/256, H01M10/613, H01M10/643, H01M10/6555, H01M50/213
CPC Code(s): H01M50/256
Abstract: a battery pack is provided including a plurality of cylindrical batteries; a heat absorbing member disposed between one cylindrical battery and another cylindrical battery of the plurality of cylindrical batteries; and a battery holder that houses the plurality of cylindrical batteries and the heat absorbing member, in which the battery holder includes an enclosure along an outer periphery of the plurality of cylindrical batteries, a first groove extending along an axial direction of the cylindrical battery housed in the battery holder and a second groove extending along a circumferential direction of the cylindrical battery housed in the battery holder are provided on an inner surface of the enclosure of the battery holder, and the first groove and the second groove are connected to each other.
Inventor(s): Gary Chunshien Wu of San Diego CA (US) for murata manufacturing co., ltd., Gregory Szczeszynski of Nashua NH (US) for murata manufacturing co., ltd.
IPC Code(s): H02M3/157, H02M3/158, H03M1/34
CPC Code(s): H02M3/157
Abstract: a controller for a multi-level power converter that utilizes a look-up-table (lut) in combination with a fast flash analog-to-digital converter (adc) circuit to implement a complex set of control states for the multi-level power converter. since the set of control states can be pre-processed, a lut is very well suited for such selecting such control states. this technique can be fast because the delay is only the lut access time, rather than the propagation delay through a complex network of combinational logic. the fast flash adc has been designed to achieve all the following: high conversion speed, high resolution, small layout area, low power, and the ability to meet the requirements for properly balancing fly capacitor voltages in a multi-level converter cell.
20250030383. POWER AMPLIFICATION MODULE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Satoshi TANAKA of Kyoto (JP) for murata manufacturing co., ltd., Hideyuki SATO of Kyoto (JP) for murata manufacturing co., ltd., Yoshiaki SUKEMORI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H03F1/02, H03F3/21
CPC Code(s): H03F1/0288
Abstract: a power amplification module includes a carrier amplifier circuit; a carrier bias circuit that supplies a bias to the carrier amplifier circuit; a peak amplifier circuit; and a peak bias circuit that includes a first transistor having a collector or a drain connected to a reference potential and that supplies a bias to the peak amplifier circuit from an emitter or a source of the first transistor. the peak bias circuit is electrically connected to a current output circuit that outputs a predetermined current from the emitter or the source of the first transistor.
20250030389. POWER AMPLIFYING DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Kazuhiko ISHIMOTO of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H03F3/24, H03F1/30
CPC Code(s): H03F3/245
Abstract: a bias power supply circuit operates in one of a plurality of current generation modes generating bias power source currents of different levels. the bias power source current is reduced where a first detection signal indicates that a power source voltage is less than a first threshold value. under control of a bias control circuit, a bias circuit operates in one of an on mode and an off mode wherein the on mode is a mode in which the bias power source current generated by the bias power supply circuit is supplied to a power amplifying transistor as a bias current, and the off mode is a mode in which the bias current whose level is reduced compared with a case where the bias circuit operates in the on mode is supplied or supply of the bias current is stopped.
Inventor(s): Kazuki YAMAMORI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H9/05, H03H3/08, H03H9/02, H03H9/10, H03H9/25
CPC Code(s): H03H9/059
Abstract: an acoustic wave device includes a piezoelectric substrate including first and second main surfaces, a mounting substrate including third and fourth main surfaces, a functional electrode on the first main surface to perform electromechanical conversion with the piezoelectric substrate, first and second plane electrodes on the first main surface and connected to the functional electrode, and a third plane electrode on the first main surface and in contact with an end side of the piezoelectric substrate, and not connected to the functional electrode and the plane electrode, and bump electrodes bonded to the first and third main surfaces. a maximum distance dbetween two end portions of the third plane electrode is smaller than a minimum distance dof distances between two of the first and second plane electrodes having different potentials from each other.
Inventor(s): Bryant GARCIA of Mississauga (CA) for murata manufacturing co., ltd., Bryan KIMBRELL of Goleta CA (US) for murata manufacturing co., ltd., John P. KOULAKIS of Los Angeles CA (US) for murata manufacturing co., ltd., Greg DYER of Santa Barbara CA (US) for murata manufacturing co., ltd., Patrick TURNER of Portola Valley CA (US) for murata manufacturing co., ltd.
IPC Code(s): H03H9/08, H03H3/02, H03H9/02, H03H9/10, H03H9/17, H03H9/56
CPC Code(s): H03H9/08
Abstract: a device may include a substrate that includes a base and an intermediate layer. a device may include a piezoelectric layer supported by the substrate except for a portion of the piezoelectric layer forming a diaphragm that spans a helium filled cavity that extends at least partially in the intermediate layer. a device may include an interdigital transducer (idt) at a surface of the piezoelectric layer and having interleaved fingers on the diaphragm that have a thickness that is less than 0.5 times a thickness of the diaphragm and greater than 0.2 times the thickness of the diaphragm, wherein one of the base and the intermediate layer of the substrate defines a bottom surface of the helium filled cavity that faces the diaphragm such that a cavity depth is between 1.0 �m to 6.0 �m.
20250030400. ACOUSTIC WAVE DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Takuya YABU of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Kentaro NAKAMURA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H9/145, H03H9/02, H03H9/25, H03H9/64
CPC Code(s): H03H9/14561
Abstract: an acoustic wave device includes acoustic wave resonators each including a piezoelectric substrate including a piezoelectric body layer, and an idt electrode on the piezoelectric substrate and including electrode fingers. at least one of the acoustic wave resonators is an excitation angle change resonator, in which, the piezoelectric body layer includes a propagation axis and the electrode fingers are curved. in the excitation angle change resonator, an excitation direction of an acoustic wave in a portion of one of the electrode fingers is one of first, second, or third directions. an excitation angle of the excitation angle change resonator is not uniform in the idt electrode.
20250030403. FILTER DEVICE AND MULTIPLEXER_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Kentaro NAKAMURA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Takuro OKADA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Takuya YABU of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H9/56, H03H9/13, H03H9/205, H03H9/70
CPC Code(s): H03H9/568
Abstract: a filter device includes a first signal terminal, a second signal terminal, and a plurality of resonators including a plurality of series arm resonators and a plurality of parallel arm resonators. at least one of the plurality of series arm resonators and the plurality of parallel arm resonators is an excitation angle change resonator. the excitation angle change resonator includes a piezoelectric substrate including a piezoelectric body layer, and an idt electrode including a plurality of electrode fingers provided on the piezoelectric substrate. the piezoelectric body layer has a propagation axis. the plurality of electrode fingers are curved. an excitation direction of an acoustic wave in a portion of an electrode finger in the plurality of electrode fingers is one of first to third directions.
Murata Manufacturing Co., Ltd. patent applications on January 23rd, 2025
- Murata Manufacturing Co., Ltd.
- B81B7/00
- B81C1/00
- H10N30/045
- CPC B81B7/0022
- Murata manufacturing co., ltd.
- G01N33/00
- G01N21/3504
- CPC G01N33/0011
- H01F27/28
- H01F27/29
- CPC H01F27/2804
- H01G4/012
- H01G4/232
- H01G4/30
- CPC H01G4/012
- H01G4/12
- CPC H01G4/12
- H01G4/008
- CPC H01G4/30
- C04B35/48
- H01L25/065
- H01L23/00
- CPC H01L25/0657
- H01M4/36
- H01M4/38
- H01M4/525
- H01M10/0525
- H01M4/02
- CPC H01M4/366
- H01M10/0568
- C07C69/606
- H01M4/58
- H01M4/583
- CPC H01M10/0568
- H01M50/256
- H01M10/613
- H01M10/643
- H01M10/6555
- H01M50/213
- CPC H01M50/256
- H02M3/157
- H02M3/158
- H03M1/34
- CPC H02M3/157
- H03F1/02
- H03F3/21
- CPC H03F1/0288
- H03F3/24
- H03F1/30
- CPC H03F3/245
- H03H9/05
- H03H3/08
- H03H9/02
- H03H9/10
- H03H9/25
- CPC H03H9/059
- H03H9/08
- H03H3/02
- H03H9/17
- H03H9/56
- CPC H03H9/08
- H03H9/145
- H03H9/64
- CPC H03H9/14561
- H03H9/13
- H03H9/205
- H03H9/70
- CPC H03H9/568
