Patents Assigned to Murata Manufacturing Co., Ltd.
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Patent number: 10625377Abstract: A bonding member having a container between a first foil and a second foil. The container includes metal particles having a melting point higher than a melting point of the first foil and a melting point of the second foil, a film material in which the metal particles are dispersed, and intermetallic compounds formed by a reaction between the first foil or the second foil and the metal particles. The first foil and the metal particles are bonded with the intermetallic compound interposed therebetween, and the second foil and the metal particles are bonded with the intermetallic compound interposed therebetween.Type: GrantFiled: January 8, 2018Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Seitaro Washizuka
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Patent number: 10630257Abstract: A filter includes a parallel arm resonator and an interdigital capacitor. The parallel arm resonator has an IDT electrode defined by first electrode fingers. The interdigital capacitor is defined by second electrode fingers and is connected to the parallel arm resonator. The electrode finger pitch of the second electrode fingers is smaller than the electrode finger pitch of the first electrode fingers. The film thickness of the second electrode fingers is smaller than the film thickness of the first electrode fingers. A self-resonant frequency of the interdigital capacitor is higher than a pass band of the filter.Type: GrantFiled: March 6, 2019Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Koji Nosaka
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Patent number: 10624549Abstract: A handheld electrocardiographic measurement device includes a substantially spheroidal body, a stopper projecting along an axial direction of the body to restrict a position of a thumb of one hand by abutting on a side surface of the thumb when a user grips the body with the one hand, a plate-shaped flange projecting from a side surface of the body in a direction orthogonal or substantially orthogonal to a projecting direction of the stopper, a first electrocardiographic electrode disposed on a back side of the body to touch a finger of the one hand when the body is gripped with the one hand, and a second electrocardiographic electrode disposed on a surface of the flange to touch a finger of the other hand when the flange is pinched by the other hand.Type: GrantFiled: October 31, 2017Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Toru Shimuta
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Patent number: 10626054Abstract: A multilayer ceramic substrate that includes a laminate having stacked ceramic layers formed of a ceramic material containing a main component, containing 48 to 75% by weight of Si, 20 to 40% by weight of Ba, and 10 to 40% by weight of Al, and an auxiliary component containing at least 2.5 to 20 parts by weight of Mn with respect to 100 parts by weight of the main component, and in the laminate, glass ceramic layers in which the entire or a portion of the thickness thereof exists within 100 ?m inside of the laminate as measured from opposed principal surfaces are further stacked.Type: GrantFiled: November 16, 2017Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Tomoki Kato, Sadaaki Sakamoto
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Patent number: 10629383Abstract: A solid electrolytic capacitor that includes a capacitor element having a linear through conductor made of a valve function metal, a dielectric layer disposed on the through conductor, and a cathode-side functional layer disposed on the dielectric layer. The through conductor includes a core portion and a porous portion covering a peripheral surface of the core portion. Both end faces of the core portion of the through conductor are in contact with a pair of anode terminals on the pair of end faces of the body, respectively. A cathode terminal is electrically connected to the cathode-side functional layer.Type: GrantFiled: March 29, 2017Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Tomoki Nobuta, Kazumasa Fujimoto, Osamu Yokokura
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Patent number: 10625888Abstract: A method and an apparatus for feeding electronic components are capable of increasing a rate of filling accommodation holes with electronic components. An accommodation plate including accommodation holes, respective openings of which are distributed over a main surface of the accommodation plate, is prepared, and electronic components are loaded onto the main surface of the accommodation plate. A horizontal vibration in an X-axis direction and/or a Y-axis direction and a vertical vibration in a Z-axis direction are applied to the accommodation plate with the main surface of the accommodation plate level. The horizontal and vertical vibrations have an equal number of vibrations and a prescribed phase difference therebetween. The accommodation plate is vibrated so that each of the electronic components is fed into one of the accommodation holes while moving over the main surface of the accommodation plate.Type: GrantFiled: May 23, 2019Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Satoru Takeuchi
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Patent number: 10629869Abstract: An electronic apparatus case including a ventilation portion on at least one side of the electronic apparatus case is provided. The ventilation portion further includes: an outer wall portion including a first ventilation port; an inner wall portion including a second ventilation port provided in a staggered manner with respect to the first ventilation port of the outer wall portion; and a discharge port provided between the outer wall portion and the inner wall portion.Type: GrantFiled: April 18, 2018Date of Patent: April 21, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Tsuyoshi Nakamura, Masaaki Sugiyama
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Patent number: 10629904Abstract: A positive electrode active material includes: a composite particle that includes a particle containing a lithium transition metal composite oxide of Li and Co and a layer that is provided on a surface of the particle and includes an oxide of Li, Ni and Mn. Ni and Mn have a concentration distribution centered on the center from a surface of the composite particle, in a depth range in which a ratio d (%) satisfies 0.04%?d?0.20%, a mole fraction rn of Ni and a mole fraction rm of Mn are within ranges of 0.05?rn and 0.05?rm, respectively, and a ratio rn2/rn1 and a ratio rm2/rm1 are within ranges of 0.85?rn2/rn1?1.0 and 0.85?rm2/rm1?1.0, respectively.Type: GrantFiled: July 6, 2015Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Yuki Niwata, Shingo Nakasato, Asuki Yanagihara, Yosuke Hosoya
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Patent number: 10629591Abstract: A semiconductor device includes a plurality of unit transistors that are arranged on a surface of a substrate in a first direction. Input capacitive elements are arranged so as to correspond to the unit transistors. An emitter common wiring line is connected to emitter layers of the unit transistors. A via-hole extending from the emitter common wiring line to a back surface of the substrate is disposed at a position overlapping the emitter common wiring line. A collector common wiring line is connected to collector layers of the unit transistors. The input capacitive elements, the emitter common wiring line, the unit transistors, and the collector common wiring line are arranged in this order in a second direction. Base wiring lines that connect the input capacitive elements to base layers of the corresponding unit transistors intersect the emitter common wiring line without physical contact.Type: GrantFiled: January 9, 2019Date of Patent: April 21, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Shigeki Koya, Takayuki Tsutsui, Kazuhito Nakai, Yusuke Tanaka
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Patent number: 10630260Abstract: An elastic wave apparatus includes a piezoelectric substrate, a first dielectric film provided on the piezoelectric substrate, an IDT electrode provided on the first dielectric film, and a capacitor that includes a pair of comb-shaped electrodes provided directly on the piezoelectric substrate and is electrically connected to the IDT electrode. An elastic wave resonator including the IDT electrode is provided.Type: GrantFiled: August 24, 2018Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Yohei Konaka
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Patent number: 10626861Abstract: A piezoelectric blower includes a housing, top plate, side plate, vibrating plate, piezoelectric element, and cap. The top plate, side plate, and vibrating plate define a blower chamber. The top plate includes a vent hole. The vibrating plate and piezoelectric element constitutes a piezoelectric actuator. The cap includes a wall portion facing the piezoelectric actuator and has a disc-shaped suction port. Here, a central axis of the suction port extending along a thickness direction of the wall portion and a central axis of the piezoelectric element extending along the thickness direction of the wall portion do not coincide with each other. An air channel is provided among the housing, the cap, and a joined structure of the top plate, side plate, and piezoelectric actuator.Type: GrantFiled: November 20, 2014Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Susumu Takeuchi
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Patent number: 10630261Abstract: A filter includes a series-arm resonator connected on a path connecting an input/output terminal and an input/output terminal, and first and second parallel-arm resonators connected between the same node on the path and ground. A resonant frequency of the first parallel-arm resonator is lower than a resonant frequency of the second parallel-arm resonator, and an anti-resonant frequency of the first parallel-arm resonator is lower than an anti-resonant frequency of the second parallel-arm resonator. The first parallel-arm resonator is defined by an acoustic wave resonator, and includes an IDT electrode that excites an acoustic wave, and a reflector that reflects the acoustic wave excited by the IDT electrode. A pitch between the IDT electrode and the reflector is about 0.42? or more and less than about 0.50?.Type: GrantFiled: February 25, 2019Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Koji Nosaka
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Patent number: 10625376Abstract: A bonding member that includes a base material that has a spiral shape when viewing a cross section thereof orthogonal to a longitudinal direction thereof, and contains a low melting point metal; and a coating film in a gap between opposed surfaces of the base material when the base material is in the spiral shape. The coating film contains metal particles of a high melting point metal that forms an intermetallic compound having a melting point higher than that of the low melting point metal by reaction of the high melting point metal with a melt of the low melting point metal. The low melting point metal is, for example, Sn or a Sn alloy. The high melting point metal is, for example, a Cu—Ni alloy, a Cu—Mn alloy, a Cu—Cr alloy, or a Cu—Al alloy.Type: GrantFiled: January 8, 2018Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Seitaro Washizuka
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Patent number: 10630335Abstract: A signal transmission and reception element transmits and receives a differential signal. Two transmission lines transmit the differential signal between the signal transmission and reception element and a connector. The signal transmission and reception element is connected to an external apparatus with the connector interposed therebetween. A noise generation source generates noise in a wireless band, which is coupled to the transmission lines. An antenna has a gain in a frequency band of the noise which is generated in the noise generation source. A wireless signal processing circuit processes a signal received by the antenna. An absorption-type filter that is mounted on the transmission lines absorbs noise mixed in the transmission lines.Type: GrantFiled: October 20, 2017Date of Patent: April 21, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Kota Saito, Yoshihiro Imanishi, Hiroshi Kitada, Hiroyuki Takatsuji, Masashi Omuro
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Patent number: 10630180Abstract: An abnormality determiner turns OFF a third switch and controls a converter controller to stop operating in a case where a voltage value detected by a voltage detector during a normal mode exceeds a first threshold value. The abnormality determiner determines that a first switch has an abnormality in a case where the voltage value exceeds a second threshold value in a state where the converter controller is stopped. The abnormality determiner controls the converter controller to operate in a case where the voltage value is equal to or smaller than the second threshold value in a state where the converter controller is stopped. The abnormality determiner determines that the converter controller has an abnormality in a case where the voltage value exceeds a third threshold value in a state where the converter controller is operated.Type: GrantFiled: September 12, 2019Date of Patent: April 21, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Hajime Shiji, Yoshiyuki Uno, Yoshiaki Mizushima, Shouhei Hirose
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Patent number: 10629350Abstract: A flexible inductor includes a coil substrate having a first spiral conductor formed in or on a bottom surface, a first magnetic sheet laminated on a top surface of the coil substrate, and a second magnetic sheet laminated on the bottom surface of the coil substrate. The flexible inductor includes a plurality of outer electrodes including a first outer electrode and a second outer electrode that are disposed in a peripheral portion of the bottom surface of the coil substrate, and cutout portions each formed in an area between the first spiral conductor and each of the outer electrodes so as to penetrate through the coil substrate. The first outer electrode is electrically connected to an outermost end portion of the first spiral conductor. The second outer electrode is electrically connected to an innermost end portion of the first spiral conductor.Type: GrantFiled: January 9, 2018Date of Patent: April 21, 2020Assignee: Murata Manufacturing Co., Ltd.Inventors: Masashi Hattori, Koichi Yamaguchi, Hideji Kihara
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Publication number: 20200118737Abstract: A multilayer coil component includes an inner conductor, a component element assembly including the inner conductor, and outer conductors disposed at respective end portions of the component element assembly. The component element assembly has a first region in which the primary component is composed of a magnetic material and which may contain a nonmagnetic material and second regions which are disposed at respective end portions of the first region and which contain at least a nonmagnetic material. Each second region is disposed having a greater volume content of the nonmagnetic material than the first region such that, for example, the difference in the volume content results about 25% by volume or more. The coil portion of the inner conductor is embedded in the first region, and the length of the second region is greater than or equal to the length of the side-surface folded portion of the outer conductor.Type: ApplicationFiled: October 9, 2019Publication date: April 16, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Yuudai SUZUKI, Kazuya KOIZUMI
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Publication number: 20200118734Abstract: A coil component includes a body and a coil conductor embedded in the body. The body includes a magnetic layer and a non-magnetic layer. The magnetic layer is formed of a composite material including a metal particle and a resin material, and the non-magnetic layer is arranged not to extend through a winding portion of the coil conductor or not to entirely extend through the body.Type: ApplicationFiled: December 16, 2019Publication date: April 16, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Noriko SHIMIZU, Gota SHINOHARA, Mikito SUGIYAMA, Mari YONEMURA
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Publication number: 20200119171Abstract: A bipolar transistor has a subcollector layer and a stack of collector, base, and emitter layers on the subcollector layer. On the subcollector layer are collector electrodes. On the base layer are base electrodes. The collector layer includes multiple doped layers with graded impurity concentrations, higher on the subcollector layer side and lower on the base layer side. Of these doped layers, the one having the highest impurity concentration is in contact with the subcollector layer and has a sheet resistance less than or equal to about nine times that of the subcollector layer.Type: ApplicationFiled: December 11, 2019Publication date: April 16, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Yasunari UMEMOTO, Shigeki KOYA, Atsushi KUROKAWA
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Publication number: 20200118733Abstract: A coil component includes a body and a coil conductor embedded in the body. The body includes a magnetic layer and a non-magnetic layer. The magnetic layer is formed of a composite material including a metal particle and a resin material, and the non-magnetic layer is arranged to block between at least one of top and bottom surfaces of the body and the coil conductor.Type: ApplicationFiled: December 16, 2019Publication date: April 16, 2020Applicant: Murata Manufacturing Co., Ltd.Inventors: Noriko SHIMIZU, Gota SHINOHARA, Mikito SUGIYAMA, Mari YONEMURA