MURATA MANUFACTURING CO., LTD. patent applications on January 2nd, 2025
Patent Applications by MURATA MANUFACTURING CO., LTD. on January 2nd, 2025
MURATA MANUFACTURING CO., LTD.: 23 patent applications
MURATA MANUFACTURING CO., LTD. has applied for patents in the areas of H01M10/0525 (4), H01M4/02 (3), H02M3/335 (3), H02M3/00 (3), H01M4/62 (3) H03F1/0288 (2), H01M4/62 (2), H02M3/07 (2), C01G53/50 (1), H05K1/0298 (1)
With keywords such as: electrode, surface, signal, material, positive, terminal, layer, connected, direction, and secondary in patent application abstracts.
Patent Applications by MURATA MANUFACTURING CO., LTD.
Inventor(s): Yong YANG of Fujian (CN) for murata manufacturing co., ltd., Xiaozhen ZHANG of Fujian (CN) for murata manufacturing co., ltd., Yixiao LI of Fujian (CN) for murata manufacturing co., ltd., Yuli LI of Shanghai (CN) for murata manufacturing co., ltd., Li WANG of Shanghai (CN) for murata manufacturing co., ltd., Kazumasa TAKESHI of Shanghai (CN) for murata manufacturing co., ltd.
IPC Code(s): C01G53/00, H01M4/525
CPC Code(s): C01G53/50
Abstract: the present application provides a positive electrode material for a lithium ion secondary battery and a preparation method therefor. the positive electrode material for a lithium ion secondary battery comprises polycrystalline particles of a ternary positive electrode material and a modifying material. the polycrystalline particles comprise a plurality of primary particles. the modifying materials are located on the surface of the polycrystalline particles and/or at the grain boundary interfaces between the primary particles, wherein the modifying material comprises an oxide of a positive pentavalent or positive hexavalent transition metal. by using the positive electrode material for a lithium ion secondary battery and the preparation method therefor of the present application, the problem of cracking of secondary particles of the material during the circulation process is avoided. thus, the mechanical strength and structural stability of the ternary positive electrode material are effectively improved, and at the same time, the high-temperature cycle stability of the ternary positive electrode material is significantly improved, and the impedance increase during the cycle of the lithium ion secondary battery prepared thereby is effectively reduced.
20250004071. Low-Voltage Fuse Read Circuit_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Robert Mark Englekirk of Littleton CO (US) for murata manufacturing co., ltd.
IPC Code(s): G01R31/74, H01H85/30
CPC Code(s): G01R31/74
Abstract: circuits and methods for reading fusible links that allows use of low-voltage logic circuitry utilizing devices that may have a high-voltage stand-off capability. embodiments provide predictable operation that is less susceptible to pvt variations, allow the use of arrays of fuses that may be scaled to relatively large memory sizes, uses little integrated circuit area, and do not require extra pins for operation. embodiments utilize a latch circuit and voltage dividers to generate a reference voltage vand a fuse voltage v, and then compares and latches the greater of those voltages. the circuitry does not require any more supply voltage than is needed to turn on input pass transistors to the latch at a slightly higher voltage (v) than v. since vmay be about 0.1v, that turn-on voltage may be as low as about 0.1v+v, and thus would be less than a vof about 1v.
Inventor(s): Satoshi MIYAUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/232, H01G4/008, H01G4/012, H01G4/12, H01G4/224, H01G4/236, H01G4/248, H01G4/30
CPC Code(s): H01G4/2325
Abstract: a multilayer ceramic capacitor includes a multilayer ceramic capacitor main body, metal terminals connected to external electrodes via a bonding material, and an exterior material that covers the multilayer ceramic capacitor main body. the metal terminals include bonding surfaces that bond the bonding material and contact surfaces in contact with the exterior material. the contact surfaces include a surface of an outermost surface plating film and a surface of an intermetallic compound having a wettability lower than that of the surface of the outermost surface plating film.
20250006905. SECONDARY BATTERY_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yukihiro KATOU of Kyoto (JP) for murata manufacturing co., ltd., Akiko NAGAHARA of Kyoto (JP) for murata manufacturing co., ltd., Hideki NAKAI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/36, H01M4/02, H01M4/525, H01M4/58, H01M10/0525, H01M10/0563
CPC Code(s): H01M4/366
Abstract: a secondary battery is provided and includes a positive electrode including a positive electrode active material layer, a negative electrode, and an electrolytic solution including an electrolyte salt. the positive electrode active material layer includes a plurality of positive electrode active material particles, and the positive electrode active material particles each include a central portion including a lithium composite oxide and a covering portion provided on a surface of the central portion. the lithium composite oxide has a crystal structure of a layered rock salt type and includes lithium, nickel, and other elements as constituent elements. the covering portion includes lithium, fluorine, boron, and oxygen as constituent elements. the electrolyte salt includes a fluorine-containing lithium salt. when a sum of a content of the nickel in the lithium composite oxide and a content of the other elements in the lithium composite oxide is taken as 100 parts by mol, the content of the nickel in the lithium composite oxide is 80 parts by mol or more and 100 parts by mol or less. a first negative secondary ion derived from lif and a second negative secondary ion derived from bo are detected in analysis in a depth direction of the positive electrode active material layer using time-of-flight secondary ion mass spectrometry. a change in ionic strength of the first negative secondary ion in the depth direction has a first peak, and a change in ionic strength of the second negative secondary ion in the depth direction has a second peak. the second peak is located on a deeper side than the first peak in the depth direction.
20250006932. SECONDARY BATTERY_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yasushi MORI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/62, H01M4/02, H01M10/0525, H01M10/0568, H01M10/0569
CPC Code(s): H01M4/62
Abstract: a secondary battery is provided and including a positive electrode; a negative electrode; and an electrolyte, wherein the secondary battery is operable to be subject to a low-temperature cycle, followed by high-temperature storage or a room-temperature cycle, and on a surface of the negative electrode, a fluorine atom concentration is higher than an oxygen atom concentration based on x-ray photoelectron spectroscopy after the high-temperature storage or the room-temperature cycle, compared to after the low-temperature cycle.
Inventor(s): Shogo KANBE of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/62, H01M4/38, H01M10/052
CPC Code(s): H01M4/62
Abstract: a secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. the positive electrode includes a positive electrode active material and a carbon-nitrogen-containing metal compound. the positive electrode active material includes sulfur. the carbon-nitrogen-containing metal compound includes carbon, nitrogen, and a metal element as constituent elements.
20250006938. SECONDARY BATTERY_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Gerile NAREN of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/62, H01M4/02, H01M10/0525
CPC Code(s): H01M4/622
Abstract: a secondary battery is provided and includes a positive electrode, a negative electrode, and an electrolytic solution. the negative electrode includes a negative electrode active material layer containing a negative electrode binder and a coating film provided on a surface of the negative electrode active material layer, and the negative electrode binder contains a copolymer of acrylamide, lithium acrylate, and acrylonitrile. a c1s spectrum, an n1s spectrum, and an li1s spectrum are detected by surface analysis of the negative electrode using x-ray photoelectron spectroscopy, a first concentration ratio as calculated by equation (1) is 0.4 or more and 2.7 or less, and a second concentration ratio as calculated by equation (2) is 3.4 or more and 5.9 or less.
Inventor(s): Hiroki MITA of Kyoto (JP) for murata manufacturing co., ltd., Kazunari MOTOHASHI of Kyoto (JP) for murata manufacturing co., ltd., Masayuki NAGAMINE of Kyoto (JP) for murata manufacturing co., ltd., Jusuke SHIMURA of Kyoto (JP) for murata manufacturing co., ltd., Kaoru DOKKO of Kyoto (JP) for murata manufacturing co., ltd., Masayoshi WATANABE of Kyoto (JP) for murata manufacturing co., ltd., Kazuhide UENO of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M10/0569, H01M10/0525, H01M10/0567, H01M10/0587
CPC Code(s): H01M10/0569
Abstract: an electrolytic solution for a secondary battery includes a lithium salt, a sulfonyl compound, and a fluorinated ether compound. the sulfonyl compound includes two or more selected from cyclic compounds and chain compounds. the sulfonyl compound includes at least one of the cyclic compounds. each of the cyclic compounds is represented by formula (1). each of the chain compounds is represented by formula (2). the fluorinated ether compound is represented by formula (3). a concentration of the lithium salt is higher than or equal to 1.159 mol/l and lower than or equal to 3.592 moles per liter. a ratio of a number of moles of the sulfonyl compound to a number of moles of the lithium salt is greater than or equal to 2 and less than or equal to 4.
Inventor(s): Natsumi MINAMITANI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01Q21/28, H01Q5/307
CPC Code(s): H01Q21/28
Abstract: an antenna module includes first and second radiating elements, and a substrate including a first main surface facing away from a second main surface. the first radiating element is closer to the first main surface than to the second main surface. the second radiating element is in a first antenna disposition member. a feed circuit supplies high-frequency signals to the first and second radiating elements. the first antenna disposition member has a first disposition surface on which the substrate is disposed and a first intersecting surface intersecting the first disposition surface. the second main surface is joined to the first disposition surface, and a feed wiring line electrically connecting the first radiating element or the second radiating element to the feed circuit includes a wiring line spanning the substrate and the first antenna disposition member in a first joint portion between the second main surface and the first disposition surface.
20250007394. ISOLATED GATE DRIVER SYSTEM_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Takayuki TANGE of Milton Keynes (GB) for murata manufacturing co., ltd.
IPC Code(s): H02M3/00, H02M1/08, H02M3/335
CPC Code(s): H02M3/01
Abstract: in an isolated gate driver system, isolation for both power transmission and signal transmission is integrated into a single module. the isolated gate driver system includes a resonant isolated dc-dc converter, and uses a modulation scheme to transfer a control signal in combination with power supply through a transformer of the resonant isolated dc-dc converter. a resonance tank control switch modifies a capacitance in a resonance tank circuit based on a signal indicative of the control signal.
Inventor(s): David M. Giuliano of Bedford NH (US) for murata manufacturing co., ltd.
IPC Code(s): H02M3/07, H02M3/00, H02M3/155, H02M3/158, H02M3/335, H02M7/483
CPC Code(s): H02M3/07
Abstract: methods for modifying converter cells for switched-mode power converters, and corresponding power converter cells. the modified converter cells exhibit reduced inductance requirements, enable use of lower voltage and smaller switches, provide improved power density and efficiency, and provide for improved input/output voltage dynamic range. embodiments of the methods generate converter cell topologies having 3 or more node voltage levels by successively applying a “split switches and connect through a capacitor” operation. the inventive processes, or variants of those processes, may be applied to converter cell topologies that are 2-level converter cells including at least one inductance and two switches, and particularly 2-level converter cells including either (1) an order of at least 3 (i.e., 3 or more energy storage elements in some combination of inductances and capacitances, but with at least one inductance) and at least 2 switches, or (2) at least 1 designed-in inductance and at least 4 switches.
Inventor(s): Shohei MASUDA of San Jose CA (US) for murata manufacturing co., ltd., Hajime SHIJI of San Jose CA (US) for murata manufacturing co., ltd.
IPC Code(s): H02M3/335, H01F27/29, H02M3/00
CPC Code(s): H02M3/33584
Abstract: an hsc voltage conversion module includes an input voltage, a transformer without a primary winding and including secondary windings magnetically coupled by a magnetic core, first and second switch bridges connected to the transformer and to the input voltage, and an output capacitor that is connected to a single node of the transformer and that provides an output voltage that is one quarter of the input voltage.
Inventor(s): John Birkbeck of New Milton (GB) for murata manufacturing co., ltd.
IPC Code(s): H03D7/14, H04B1/40
CPC Code(s): H03D7/1441
Abstract: radio frequency (rf) mixer circuits having a complementary frequency multiplier module that requires no balun to multiply a lower frequency base oscillator signal to a higher frequency local oscillator (lo) signal, and which has a significantly reduced ic area compared to balun-based frequency multipliers. in one embodiment, the complementary frequency multiplier module includes a complementary pair of fets controlled by an applied base oscillator signal. the complementary fets are coupled to a common-gate fet amplifier and alternate becoming conductive in response to the base oscillator signal. the alternating switching of the complementary fets in response to the opposing phases of the base oscillator signal cause the common-gate fet amplifier to output a higher frequency local oscillator (lo) signal. the lo signal is coupled to the lo input of a mixer or mixer core of a type suitable for use in conjunction with a frequency multiplier.
20250007466. AMPLIFIER CIRCUIT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Ikumi TOKUDA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03F1/02, H03F1/32, H03F3/24
CPC Code(s): H03F1/0288
Abstract: an amplifier circuit includes a carrier amplifier, a peak amplifier, a phase shift line, a power combiner that combines radio frequency signals input to a first terminal and a second terminal to obtain a combined radio frequency signal and outputs the combined radio frequency signal from a third terminal, and an impedance element that is a resistor element or a capacitor. the carrier amplifier is connected between a signal input terminal and the first terminal, the peak amplifier is connected between the signal input terminal and a first end of the phase shift line, a second end of the phase shift line is connected to the second terminal, a signal output terminal is connected to the third terminal, a first end of the impedance element is connected to the second terminal, and a second end of the impedance element is connected to the signal output terminal.
20250007467. AMPLIFIER CIRCUIT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Ikumi TOKUDA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03F1/02
CPC Code(s): H03F1/0288
Abstract: an amplifier circuit includes a carrier amplifier connected between a signal input terminal and a signal output terminal, a peak amplifier connected between the signal input terminal and the signal output terminal, a first phase shift circuit connected between the carrier amplifier or the peak amplifier and the signal output terminal, an auxiliary amplifier connected between the signal input terminal and the carrier amplifier, and a second phase shift circuit connected between the signal input terminal and the carrier amplifier.
20250007473. SEMICONDUCTOR DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Takayuki TSUTSUI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Shinnosuke TAKAHASHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03F3/24, H03F1/56
CPC Code(s): H03F3/245
Abstract: a substrate ground conductor made of a semiconductor is provided. a transistor is configured with a collector layer, a base layer, and an emitter layer laminated on a substrate. a clamp circuit is configured with a plurality of elements disposed on the substrate. the clamp circuit is connected between the collector layer and the ground conductor or between the base layer and the ground conductor. the plurality of elements of the clamp circuit include a diode circuit made of a plurality of diodes, and a resistance element connected in series to the diode circuit. the resistance element is configured with a part of an epitaxial layer formed on the substrate.
Inventor(s): Patrick TURNER of Portola Valley CA (US) for murata manufacturing co., ltd., Mike EDDY of Santa Barbara CA (US) for murata manufacturing co., ltd., Andrew KAY of Provo UT (US) for murata manufacturing co., ltd., Ventsislav YANTCHEV of Sofia (BG) for murata manufacturing co., ltd.
IPC Code(s): H03H3/02, H03H3/04, H03H9/02, H03H9/10, H03H9/25, H03H9/58, H03H9/64
CPC Code(s): H03H3/02
Abstract: a bulk acoustic resonator device is provided that includes a bulk acoustic resonator chip having a substrate; a piezoelectric layer attached to the substrate either directly or via one or more intermediate layers; and a first conductor pattern on the piezoelectric layer, the first conductor pattern comprising an interdigitated transducer (idt). moreover, an interposer is provided having a surface facing the piezoelectric layer and having a second conductor pattern on the surface of the interposer. a conductive metal bump is between the piezoelectric layer and the interposer that electrically connects the first conductor pattern to the second conductor pattern; and a cover is bonded both to the substrate and to a portion of the surface of the interposer. the cover seals an interior of the bulk acoustic resonator chip.
20250007493. ACOUSTIC WAVE DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Sho NAGATOMO of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H9/13, H03H9/02, H03H9/56
CPC Code(s): H03H9/132
Abstract: an acoustic wave device includes a piezoelectric layer including first and second main surfaces, first and second electrode fingers on the first main surface and respectively connected to an input potential and an output potential, and a third electrode finger on at least one of the first and second main surfaces and connected to a reference potential. the first and second electrode fingers when seen from an electrode finger orthogonal direction orthogonal or substantially orthogonal to a direction in which the first and second electrode fingers extend. a region where the first and second electrode fingers overlap in the electrode finger orthogonal direction is a facing region. the third electrode finger overlaps with at least a portion of at least one facing region when seen from a main surface facing direction in which the first and second main surfaces face each other.
20250007495. COMPOUND FILTER DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Hiroyuki YOSHIOKA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H9/54, H03H9/05, H03H9/13, H03H9/58
CPC Code(s): H03H9/542
Abstract: a compound filter device includes a piezoelectric substrate, a first filter that is a band pass filter and includes a longitudinally coupled resonator acoustic wave filter on the piezoelectric substrate, and a second filter including at least one resonator, and an inductor connected to a ground potential. in a plan view, the longitudinally coupled resonator acoustic wave filter and the inductor overlap to define an overlapping portion, and a direction in which current flows through the longitudinally coupled resonator acoustic wave filter and a direction in which current flows through the inductor are the same in the overlapping portion.
Inventor(s): Takuma KUROYANAGI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yoshihiro YOSHIMURA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Kiyoshi AIKAWA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Takahiro YAMASHITA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuusuke SUZUKI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H9/64, H03H9/13, H03H9/145, H03H9/22, H03H9/25, H03H9/56
CPC Code(s): H03H9/6483
Abstract: an acoustic wave device includes a first transmission filter; and a second transmission filter stacked on the first transmission filter so that a first functional surface of the first transmission filter and a second functional surface of the second transmission filter face each other at a predetermined distance. the first transmission filter includes a first input terminal and a first acoustic wave resonator. the second transmission filter includes a second input terminal and a second acoustic wave resonator. the first acoustic wave resonator includes a first functional electrode formed on the first functional surface. the second acoustic wave resonator includes a second functional electrode formed on the second functional surface. in a plan view along a thickness direction of the first and second transmission filters, a first formation region of the first functional electrode and a second formation region of the second functional electrode do not overlap each other.
20250008647. MULTILAYER SUBSTRATE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Kosuke NISHIO of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Ryutatsu MIZUKAMI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H05K1/02
CPC Code(s): H05K1/0298
Abstract: in a multilayer substrate, one of a first reference conductor layer and a second reference conductor layer overlapping an eleventh interlayer connection conductor includes a first opening overlapping a signal conductor layer when viewed in a z-axis direction. when viewed in the z-axis direction, the first opening is positioned in a negative direction of an x axis relative to a vicinity of a first reference straight line connecting a second interlayer connection conductor and a fifth interlayer connection conductor. when viewed in the z-axis direction, the first opening is positioned in a positive direction of the x axis relative to the eleventh interlayer connection conductor.
20250008670. ELECTRONIC DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Hidekazu KANO of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H05K5/02, G08B21/18, H04R1/10, H05K5/00
CPC Code(s): H05K5/02
Abstract: an electronic device includes a battery having a first and second main surface arranged in a z-axis direction, a rigid body facing the first main surface, and a sensor that is attached to the rigid body and detects elastic deformation of the rigid body generated when force is applied to the rigid body. the sensor does not overlap the battery when viewed in the z-axis direction, and a first waveform of a signal output from the sensor when force of a first pattern is applied to the rigid body in a state where the first main surface is in contact with the rigid body is different from a second waveform of a signal output from the sensor when the force of the first pattern is applied to the rigid body in a state where the first main surface is not in contact with the rigid body.
MURATA MANUFACTURING CO., LTD. patent applications on January 2nd, 2025
- MURATA MANUFACTURING CO., LTD.
- C01G53/00
- H01M4/525
- CPC C01G53/50
- Murata manufacturing co., ltd.
- G01R31/74
- H01H85/30
- CPC G01R31/74
- H01G4/232
- H01G4/008
- H01G4/012
- H01G4/12
- H01G4/224
- H01G4/236
- H01G4/248
- H01G4/30
- CPC H01G4/2325
- H01M4/36
- H01M4/02
- H01M4/58
- H01M10/0525
- H01M10/0563
- CPC H01M4/366
- H01M4/62
- H01M10/0568
- H01M10/0569
- CPC H01M4/62
- H01M4/38
- H01M10/052
- CPC H01M4/622
- H01M10/0567
- H01M10/0587
- CPC H01M10/0569
- H01Q21/28
- H01Q5/307
- CPC H01Q21/28
- H02M3/00
- H02M1/08
- H02M3/335
- CPC H02M3/01
- H02M3/07
- H02M3/155
- H02M3/158
- H02M7/483
- CPC H02M3/07
- H01F27/29
- CPC H02M3/33584
- H03D7/14
- H04B1/40
- CPC H03D7/1441
- H03F1/02
- H03F1/32
- H03F3/24
- CPC H03F1/0288
- H03F1/56
- CPC H03F3/245
- H03H3/02
- H03H3/04
- H03H9/02
- H03H9/10
- H03H9/25
- H03H9/58
- H03H9/64
- CPC H03H3/02
- H03H9/13
- H03H9/56
- CPC H03H9/132
- H03H9/54
- H03H9/05
- CPC H03H9/542
- H03H9/145
- H03H9/22
- CPC H03H9/6483
- H05K1/02
- CPC H05K1/0298
- H05K5/02
- G08B21/18
- H04R1/10
- H05K5/00
- CPC H05K5/02