Murata Manufacturing Co., Ltd. patent applications on August 22nd, 2024
Patent Applications by Murata Manufacturing Co., Ltd. on August 22nd, 2024
Murata Manufacturing Co., Ltd.: 27 patent applications
Murata Manufacturing Co., Ltd. has applied for patents in the areas of H01G4/30 (5), H01M4/02 (3), H04B1/00 (3), H01G4/12 (3), H01M10/0525 (3) H03H7/0115 (2), G02B27/0006 (2), H01M10/0566 (2), B22F3/00 (1), H03F3/19 (1)
With keywords such as: electrode, layer, portion, surface, circuit, body, including, connected, than, and material in patent application abstracts.
Patent Applications by Murata Manufacturing Co., Ltd.
Inventor(s): Yuya ISHIDA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): B22F3/00, B22F1/102, B22F1/16, H01F1/153, H01F1/22
CPC Code(s): B22F3/00
Abstract: a soft magnetic powder including a core containing a soft magnetic metal material and an insulating film covering the surface of the core. the insulating film contains an insulating metal oxide and an iron component, and the iron component is embedded in the insulating film.
Inventor(s): Hiroyuki OHATA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): B29C33/40, B29K101/10, B29K101/12, B29K105/00, B29K105/12
CPC Code(s): B29C33/40
Abstract: a molded body containing a liquid crystal polymer powder; and optionally containing a resin, in which the liquid crystal polymer powder contains fibrous particles including a liquid crystal polymer, an average diameter of the fibrous particles is 2 �m or less, the optional resin has heat resistance, and the optional resin is a thermoplastic resin or a thermosetting resin.
Inventor(s): Mikhail SHEKHIREV of Philadelphia PA (US) for murata manufacturing co., ltd., Christopher Eugene SHUCK of Philadelphia PA (US) for murata manufacturing co., ltd., Yury GOGOTSI of Ivyland PA (US) for murata manufacturing co., ltd., Yuusuke OGAWA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Masashi KOYANAGI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): C01B32/907, A61B5/263, B01J20/02, B01J20/28, B01J20/30, C08K9/02, C09D5/24, C09D7/40, C09D7/62, H01B1/22, H05K9/00
CPC Code(s): C01B32/907
Abstract: a two-dimensional particle including: one or plural layers, the one or plural layers having a layer body represented by: mx, wherein m is at least one metal of group 3, 4, 5, 6, or 7, x is a carbon atom, a nitrogen atom, or a combination thereof, n is 1 to 4, m is more than n but not more than 5, and a modifier or terminal t existing on a surface of the layer body, wherein t is at least one selected from a hydroxyl group, an amine group, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom and a hydrogen atom; a metal cation is at least one cation selected from na and k, and a content of li in the two-dimensional particle is less than 0.002% by mass.
20240280803. OPTICAL MODULE AND OPTICAL DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yuuki ISHII of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuka TANAKA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Katsuhiro TABUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Takahide NAKADOI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Noritaka KISHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Hitoshi SAKAGUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): G02B27/00, B06B1/06, B08B7/02
CPC Code(s): G02B27/0006
Abstract: an optical module includes a translucent portion, a tubular vibrator supporting the translucent portion, a piezoelectric element at the vibrator to vibrate the vibrator, and an inner-layer optical component at an inner side portion of the vibrator. a recess recessed in a thickness direction of the translucent portion and includes a curvature at a surface of the translucent portion facing the inner-layer optical component, the inner-layer optical component includes an inner-layer lens that faces the translucent portion and includes a first portion that protrudes toward the translucent portion and includes a curvature and a second portion at an outer periphery of the first portion, a first gap is located between the first portion and the translucent portion in the outer periphery of the first portion, a second gap is located between the second portion and the translucent portion, and the second gap is larger than the first gap.
20240280804. OPTICAL MODULE AND OPTICAL DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yuuki ISHII of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuka TANAKA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Katsuhiro TABUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Noritaka KISHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Hitoshi SAKAGUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Takahide NAKADOI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Nobumasa KITAMORI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): G02B27/00, H10N30/20
CPC Code(s): G02B27/0006
Abstract: an optical module includes a translucent body, a tubular vibrator supporting the translucent body, a piezoelectric element located at the vibrator to vibrate the vibrator, and an inner-layer optical component at an inner side portion of the vibrator, in which a first gap is located between the translucent body and the inner-layer optical component, a second gap is located between the piezoelectric element and the inner-layer optical component, at least one of a first dimension of the first gap in a vibration direction of the translucent body and a second dimension of the second gap in the vibration direction of the vibrator is in a range of about [(n��/2)+0.1 mm] or more and about [{(n+1)��/2}−0.1 mm] or less, and n indicates an integer of 0 or more, and � indicates a wavelength of an acoustic wave generated by vibration.
20240282489. CHIP ELECTRONIC COMPONENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Masakiyo NAGATOMO of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Keisuke ISOGAI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yoshinobu SAKI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01C7/02, H01C1/142
CPC Code(s): H01C7/025
Abstract: a chip electronic component includes a ceramic body that includes a semiconductor ceramic including an oxide including ti and ba, and a solid metal electrode at an end of the ceramic body and in ohmic contact with the ceramic body. the chip electronic component satisfies: a/v≥3.3 (mm/mm), where a (mm) is a surface area of the solid metal electrode, and v (mm) is a volume of the ceramic body, and a film stress of the solid metal electrode is about 140 mpa or more.
Inventor(s): Hironobu KUBOTA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuya ISHIDA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01F27/255, B22F1/10, B22F1/102, H01F1/147, H01F1/24, H01F27/28, H01F41/02
CPC Code(s): H01F27/255
Abstract: magnetic particles, each including a core made of a magnetic material, and an insulating coating film which covers a surface of the core made of a magnetic material. the insulating coating film is formed of a sol-gel reaction product of a mixture containing a metal alkoxide and an organic phosphoric acid or a salt thereof.
20240282519. CERAMIC ELECTRONIC COMPONENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Takuya GOITSUKA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G2/24, H01G4/12
CPC Code(s): H01G2/24
Abstract: a ceramic electronic component that includes: an element body containing ceramic as main material thereof; and an identification mark on a surface of element body, wherein the element body includes: a first layer containing a specific compound containing barium and silicon; and a second layer that contains the specific compound, is interposed between the identification mark and the first layer, and has a proportion of the specific compound lower than a proportion of the specific compound in the first layer.
20240282522. MULTILAYER CERAMIC CAPACITOR_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yasuyuki SHIMADA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/012, H01G4/12, H01G4/232, H01G4/30
CPC Code(s): H01G4/012
Abstract: a multilayer ceramic capacitor includes a multilayer body including dielectric layers and internal electrode layers that are laminated, first and second main surfaces opposed to each other in a lamination direction, first and second lateral surfaces opposed to each other in a width direction orthogonal or substantially orthogonal to the lamination direction, and first and second end surfaces opposed to each other in a length direction orthogonal or substantially orthogonal to the lamination direction and the width direction. the multilayer body further includes external electrodes that are respectively provided on the first end surface and the second end surface and connected to the internal electrode layers. the internal electrode layers each include first and second regions respectively including different coverages. the first region includes a larger coverage than the second region. the first region is connected to a corresponding one of the external electrodes.
20240282528. ELECTRONIC COMPONENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yosuke MATSUSHITA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/228, H01G4/005, H01G4/30
CPC Code(s): H01G4/228
Abstract: an electronic component includes a body having a first surface, a base electrode disposed on the first surface, and a plating film covering the base electrode. the first surface has a reference plane and a recess more recessed than the reference plane. the base electrode is disposed inside the recess so as not to more protrude than the reference plane. a surface of the plating film that is farthest from the body is flush with the reference plane or is located at a position more protruding than the reference plane. when viewed from a direction perpendicular to the first surface, the base electrode is disposed inside the recess and spaced apart from an outer periphery of the recess.
20240282532. MULTILAYER CERAMIC CAPACITOR_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Taro SAKAI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H01G4/30, H01G4/008, H01G4/012, H01G4/12
CPC Code(s): H01G4/30
Abstract: a multilayer ceramic capacitor includes a laminate and an external electrode. the laminate includes a central layer portion in which first and second internal electrode layers are alternately laminated with a dielectric ceramic layer therebetween, a peripheral layer portion sandwiching the central layer portion in the lamination direction, and a side margin sandwiching the central layer portion and the peripheral layer portion in the width direction. when a point p indicates an end in the width direction of the internal electrode layer closest to a main surface of the laminate, and a point q indicates a point where a boundary between the peripheral layer portion including the point p and the side margin including the point p intersects the main surface, and an imaginary line il is drawn to pass through the point p and the point q, the boundary is curved from the imaginary line il.
Inventor(s): Aki TANABE of Kyoto (JP) for murata manufacturing co., ltd., Masayuki IWAMA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M4/583, H01M4/02, H01M4/38, H01M4/525, H01M10/04, H01M10/0525, H01M10/0563, H01M10/42, H01M50/107, H01M50/213, H01M50/249
CPC Code(s): H01M4/5835
Abstract: a secondary battery includes an electrode wound body including a positive electrode and a negative electrode. the positive electrode includes a positive electrode current collector and a positive electrode active material layer. the negative electrode includes a negative electrode current collector and a negative electrode active material layer. the positive electrode active material layer and the negative electrode active material layer each include a fluorine compound and a nitrogen compound. a weight ratio of a fluorine content to a nitrogen content in the positive electrode active material layer is greater than or equal to 3 and less than or equal to 50. a weight ratio of a fluorine content to a nitrogen content in the negative electrode active material layer is greater than or equal to 1 and less than or equal to 30.
20240283020. SECONDARY BATTERY_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Masayuki IHARA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M10/0566, H01M4/02, H01M4/583, H01M10/0525
CPC Code(s): H01M10/0566
Abstract: a secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. the negative electrode includes a negative electrode active material layer. the electrolytic solution includes an electrolyte salt. the negative electrode active material layer includes a carbon material. the negative electrode active material layer has a thickness of greater than or equal to 30 �m and less than or equal to 100 �m. the negative electrode active material layer has a volume density of greater than or equal to 1.4 g/cmand less than or equal to 2 g/cm. the electrolyte salt includes an imide anion. the imide anion includes at least one of a first imide anion represented by formula (1), a second imide anion represented by formula (2), a third imide anion represented by formula (3), or a fourth imide anion represented by formula (4).
20240283021. SECONDARY BATTERY_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Masayuki IHARA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01M10/0566, H01M4/02, H01M4/505, H01M4/525, H01M10/0525
CPC Code(s): H01M10/0566
Abstract: a secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. the positive electrode includes a positive electrode active material. the electrolytic solution includes an electrolyte salt. the positive electrode active material includes a lithium-containing compound, lithium carbonate, and lithium hydroxide. a content of lithium carbonate in the positive electrode active material is greater than or equal to 0.2 wt % and less than or equal to 0.7 wt %. a content of lithium hydroxide in the positive electrode active material is greater than or equal to 0.2 wt % and less than or equal to 0.7 wt %. the electrolyte salt includes an imide anion, and the imide anion includes at least one of a first imide anion represented by formula (1), a second imide anion represented by formula (2), a third imide anion represented by formula (3), or a fourth imide anion represented by formula (4).
Inventor(s): Ryuken MIZUNUMA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H01Q1/22, H01Q1/52, H01Q5/357, H01Q9/04
CPC Code(s): H01Q1/2283
Abstract: an antenna module includes a substrate that includes a first dielectric layer and a second dielectric layer with a dielectric constant different from a dielectric constant of the first dielectric layer, a first antenna that is disposed on or in the first dielectric layer and transmits and receives a signal in a first frequency band, a second antenna that is disposed on or in the second dielectric layer and transmits and receives a signal in a second frequency band which is a lower frequency band than the first frequency band, and a radio frequency circuit that is disposed on or in the substrate and is electrically connected to the first antenna.
Inventor(s): Makoto TABEI of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H03F1/30, H03F1/02, H03F3/21
CPC Code(s): H03F1/301
Abstract: an amplification circuit includes an input terminal to which a signal to be amplified is input, a first fet having a gate to which a signal input to the input terminal is applied, second and third fets that are connected between a power supply and a reference potential, an output terminal that is provided between a load and the third fet nearest to the power supply and configured to output an amplified signal, a voltage-dividing resistor circuit configured to generate a bias to be applied to gates of the second and third fets, and a clamping circuit configured to clamp a bias to be applied to the gate of the third fet when a bias to be applied from the voltage-dividing resistor circuit to the gate of the second fet exceeds a predetermined reference voltage. the first to third fets are vertically stacked and connected.
Inventor(s): Naoki MORIKAWA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H03F3/19, H03F1/02, H04B1/00
CPC Code(s): H03F3/19
Abstract: a radio-frequency circuit includes a low-noise amplifier circuit, a switching circuit coupled to the input end of the low-noise amplifier circuit, a switching circuit coupled to the output end of the low-noise amplifier circuit or to the input end of the low-noise amplifier circuit via the switch circuit, a charge pump circuit configured to supply a control voltage to the switching circuit, and a charge pump circuit configured to supply a control voltage to the switching circuit.
20240283420. FILTER APPARATUS_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Hiroto MOTOYAMA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H7/01, H01F17/00, H01F27/29, H01G4/30
CPC Code(s): H03H7/0115
Abstract: a filter apparatus includes input and output terminals, a ground terminal, a ground electrode connected to the ground terminal, a plate electrode, and first to four lines. a multilayer body of the filter includes a first and second main surface. the input and output terminals and the ground terminal are provided on the second main surface. the plate electrode is closer to the first main surface than the ground electrode. the first line is electrically connected to the input terminal and the plate electrode. the second line is electrically connected to the output terminal and the plate electrode. the first line is capacitively coupled to the second line. when the multilayer body is viewed in a plan view from a layering direction, the plate electrode covers a portion of a space providing capacitive coupling between the first line and the second line.
20240283423. ELECTRONIC COMPONENT_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Yosuke MATSUSHITA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Akira TANAKA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuji KAMINISHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H7/01, H01G4/005, H01G4/30, H01G4/40
CPC Code(s): H03H7/0115
Abstract: an electronic component includes: a body having a first surface; and a plurality of electrodes disposed on the first surface. each of the plurality of electrodes includes a base electrode and a plating film covering the base electrode. the plurality of electrodes include: first-class electrodes individually disposed on the first surface and connected to each other by a wiring line passing through an inside of the body; and a second-class electrode individually disposed on the first surface and not connected to other electrodes of the plurality of electrodes. on the first surface, a second region in which the second-class electrode is disposed more protrudes than a first region in which each of the first-class electrodes is disposed.
Inventor(s): Andrew Guyette of San Mateo CA (US) for murata manufacturing co., ltd., Pintu Adhikari of San Mateo CA (US) for murata manufacturing co., ltd., Santhosh Gottuparthy of Sunnyvale CA (US) for murata manufacturing co., ltd., Wei Yang of Goleta CA (US) for murata manufacturing co., ltd.
IPC Code(s): H03H9/54, H03H3/02, H03H9/02, H03H9/17, H03H9/56
CPC Code(s): H03H9/542
Abstract: a filter is provided that includes resonators connected in series between first and second ports. each of the resonators includes a piezoelectric layer; and an interdigital transducer (idt) having a plurality of interleaved fingers at a surface of the piezoelectric layer. the piezoelectric layer and the idt are configured such that a radio frequency signal applied to the idt excites a primary shear acoustic mode in the piezoelectric layer. the filter includes a capacitor connected between ground and a node between the first bulk acoustic resonator and the second bulk acoustic resonator.
20240283429. FILTER DEVICE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Hiroya SUZUKI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H03H9/60, H03H9/54, H03H9/58
CPC Code(s): H03H9/605
Abstract: a filter device includes at least one series arm resonator connected in series in a signal line and including first and second end portions, parallel arm resonators connected between the signal line and ground, and a capacitor. the parallel arm resonators include a first parallel arm resonator connected on a first end portion side of the at least one series arm resonator, and a second parallel arm resonator connected on a second end portion side of the at least one series arm resonator. the first parallel arm resonator includes a third parallel arm resonator and a fourth parallel arm resonator each connected to the first end portion. the third parallel arm resonator is connected directly to the ground and the fourth parallel arm resonator is connected to the ground via the capacitor.
Inventor(s): Minoru IWANAGA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H04B1/00, H04B7/0413
CPC Code(s): H04B1/0057
Abstract: a high frequency circuit includes a filter that has a passband including a reception band of a first band that can be used in a first region and a second region, a filter that has a passband including a reception band of a second band that can be used in the first region, a filter that has a passband including the reception band of the first band, a filter that has a passband including a reception band of a third band that can be used in the second region, and a switch including a terminal connected to an antenna connection terminal, a terminal connected to an antenna connection terminal, a terminal connected to a plurality of filters including the filters and, and a terminal connected to a plurality of filters including the filters.
Inventor(s): Atsushi ONO of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Hirotsugu MORI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H04B1/00, H04L5/14
CPC Code(s): H04B1/0067
Abstract: a radio frequency circuit is a radio frequency circuit capable of simultaneously transmitting an lte signal and an nr signal, the circuit including: a first filter, a second filter, and a third filter; a first power amplifier and a second power amplifier; and a first switch connected between the first filter, the second filter, and the third filter and the first power amplifier and the second power amplifier; wherein, when one of the lte signal and the nr signal is amplified with the first power amplifier, the other of the lte signal and the nr signal is amplified with the second power amplifier; and the first switch enables connection between the first filter and the first power amplifier, enables connection between the third filter and the second power amplifier, and enables selective connection between the second filter and one of the first power amplifier and the second power amplifier.
Inventor(s): Nobumasa KITAMORI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Takahide NAKADOI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Yuuki ISHII of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Noritaka KISHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Hitoshi SAKAGUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H04N23/81, H04N23/51
CPC Code(s): H04N23/81
Abstract: a vibrating device includes a light transmitting body, a vibrating body with a tubular structure including a first end portion, a second end portion, and a side wall joining the first and second end portions, and connected to the light transmitting body at the first end portion to vibrate the light transmitting body, an extending portion extending outward from the side wall of the vibrating body, and a piezoelectric element at the second end portion of the vibrating body.
20240284121. ULTRASONIC TRANSDUCER_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Shinsuke IKEUCHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Hiroshi MATSUBARA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Ryosuke NIWA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H04R17/10, B06B1/06, B81B7/00, G01S15/10, H04R1/02
CPC Code(s): H04R17/10
Abstract: an acoustic device includes an acoustic mems device. an acoustic path communicates with the acoustic mems device. ultrasound generated by vibration of the acoustic mems device can resonate in the acoustic path. an ultrasonic transducer has sound pressure frequency characteristics such that sound pressure peaks occur as a result of a combination of resonance of the acoustic mems device and resonance in the acoustic path. a relationship of about 5≤(f−fl)/f�100≤about 33 is satisfied, where f represents a resonance frequency of the acoustic mems device and fl represents a frequency lower than the resonance frequency and closest to the resonance frequency among frequencies at which the sound pressure peaks occur in the sound pressure frequency characteristics.
20240284591. CIRCUIT MODULE_simplified_abstract_(murata manufacturing co., ltd.)
Inventor(s): Tsuyoshi TAKAKURA of Kyoto (JP) for murata manufacturing co., ltd., Masaaki MIZUSHIRO of Kyoto (JP) for murata manufacturing co., ltd., Satoshi IZUMI of Kyoto (JP) for murata manufacturing co., ltd., Ryuichiro WADA of Kyoto (JP) for murata manufacturing co., ltd., Hiroki YOSHIMORI of Kyoto (JP) for murata manufacturing co., ltd., Yoshihito OTSUBO of Kyoto (JP) for murata manufacturing co., ltd., Tadashi NOMURA of Kyoto (JP) for murata manufacturing co., ltd.
IPC Code(s): H05K1/02
CPC Code(s): H05K1/0271
Abstract: a circuit module includes: a substrate including a first main surface and a second main surface; a resin layer on the first main surface of the substrate; an electronic component; a penetrating portion penetrating the resin layer in a thickness direction; a first conductor that is a pillar conductor present in the penetrating portion, the first conductor including a first bottom closer to the substrate and a second bottom inward of an outer surface of the resin layer; a second conductor that is a metal film covering at least a portion of a side surface of the first conductor, the second conductor including a portion extending continuously from the side surface of the first conductor to the same plane with the outer surface of the resin layer.
Inventor(s): Noritaka KISHI of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Masaaki TAKATA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd., Satoshi ICHIHARA of Nagaokakyo-shi (JP) for murata manufacturing co., ltd.
IPC Code(s): H10N30/80, H10N30/20, H10N30/88
CPC Code(s): H10N30/802
Abstract: an excitation circuit includes an output circuit including a series circuit including first and second switches connected to a dc power supply, and including a connection point between the first and second switches to which a piezoelectric element is connected, a current detection circuit to detect at least one of currents flowing through the first and second switches, and output a detection signal indicating a value based on the detected current, and a control circuit to execute switching processing in which the first and second switches are complementarily switched on and off at a predetermined frequency, in order to apply a voltage of the predetermined frequency from the output circuit to the piezoelectric element, and including a search mode to determine a resonant frequency of a vibrator vibrated by the piezoelectric element based on a value indicated by the detection signal outputted from the current detection circuit.
Murata Manufacturing Co., Ltd. patent applications on August 22nd, 2024
- Murata Manufacturing Co., Ltd.
- B22F3/00
- B22F1/102
- B22F1/16
- H01F1/153
- H01F1/22
- CPC B22F3/00
- Murata manufacturing co., ltd.
- B29C33/40
- B29K101/10
- B29K101/12
- B29K105/00
- B29K105/12
- CPC B29C33/40
- C01B32/907
- A61B5/263
- B01J20/02
- B01J20/28
- B01J20/30
- C08K9/02
- C09D5/24
- C09D7/40
- C09D7/62
- H01B1/22
- H05K9/00
- CPC C01B32/907
- G02B27/00
- B06B1/06
- B08B7/02
- CPC G02B27/0006
- H10N30/20
- H01C7/02
- H01C1/142
- CPC H01C7/025
- H01F27/255
- B22F1/10
- H01F1/147
- H01F1/24
- H01F27/28
- H01F41/02
- CPC H01F27/255
- H01G2/24
- H01G4/12
- CPC H01G2/24
- H01G4/012
- H01G4/232
- H01G4/30
- CPC H01G4/012
- H01G4/228
- H01G4/005
- CPC H01G4/228
- H01G4/008
- CPC H01G4/30
- H01M4/583
- H01M4/02
- H01M4/38
- H01M4/525
- H01M10/04
- H01M10/0525
- H01M10/0563
- H01M10/42
- H01M50/107
- H01M50/213
- H01M50/249
- CPC H01M4/5835
- H01M10/0566
- CPC H01M10/0566
- H01M4/505
- H01Q1/22
- H01Q1/52
- H01Q5/357
- H01Q9/04
- CPC H01Q1/2283
- H03F1/30
- H03F1/02
- H03F3/21
- CPC H03F1/301
- H03F3/19
- H04B1/00
- CPC H03F3/19
- H03H7/01
- H01F17/00
- H01F27/29
- CPC H03H7/0115
- H01G4/40
- H03H9/54
- H03H3/02
- H03H9/02
- H03H9/17
- H03H9/56
- CPC H03H9/542
- H03H9/60
- H03H9/58
- CPC H03H9/605
- H04B7/0413
- CPC H04B1/0057
- H04L5/14
- CPC H04B1/0067
- H04N23/81
- H04N23/51
- CPC H04N23/81
- H04R17/10
- B81B7/00
- G01S15/10
- H04R1/02
- CPC H04R17/10
- H05K1/02
- CPC H05K1/0271
- H10N30/80
- H10N30/88
- CPC H10N30/802
