Patents by Inventor Masahiro Matsumoto
Masahiro Matsumoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11467016Abstract: Provided are a semiconductor device and a sensor system capable of achieving improvement of noise resistance. Thus, an output circuit 106a in the semiconductor device includes: input terminals 207n, 207p; and an output terminal 208; an output amplifier 201 connecting the input terminals 207n, 207p to the output terminal 208; a feedback element 203 returning the output terminal 208 to the input terminal 207n; a switching transistor 204; and a resistance element 206. A drain of the switching transistor 204 is connected to the input terminal 207n. The resistance element 206 is provided between a back gate of the switching transistor 204 and a power source Vdd and has impedance of a predetermined value or more for suppressing noise of a predetermined frequency generated at the input terminal 207n.Type: GrantFiled: May 9, 2019Date of Patent: October 11, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Tatsuo Nakagawa, Akeo Satoh, Akira Kotabe, Masahiro Matsumoto
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Patent number: 11440004Abstract: A microparticle sorting microchip for a flow cytometer is provided to enable sorting of microparticles at higher speed, higher purity, and higher acquisition rate. The microparticle sorting microchip includes a main channel through which a microparticle-containing fluid flows, a trap channel coaxially communicating with the main channel, a trap chamber communicating with the trap channel, and a gate channel intersecting the trap channel. The trap channel has an opening intersecting the gate channel. The trap channel has a smaller cross-sectional area upstream of the opening than downstream of the opening along a direction in which the microparticle-containing fluid flows.Type: GrantFiled: November 9, 2018Date of Patent: September 13, 2022Assignee: Sony CorporationInventors: Tatsumi Ito, Kazuya Takahashi, Masahiro Matsumoto
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Patent number: 11422016Abstract: Provided is a thermal flow rate meter capable of individually correcting different pulsation errors generated in an upstream side temperature sensor and a downstream side temperature sensor. A thermal flow rate meter 1 which measures a flow rate of a gas based on a temperature difference between an upstream side temperature sensor 12 and a downstream side temperature sensor 13, which are arranged on the upstream side and the downstream side of a heating element 11. The thermal flow rate meter includes: a detection element 10 that individually outputs an output signal of the upstream side temperature sensor 12 and an output signal of the downstream side temperature sensor 13; and compensator 20 that individually performs response compensation of the output signal of the upstream side temperature sensor 12 and the output signal of the downstream side temperature sensor 13.Type: GrantFiled: February 15, 2019Date of Patent: August 23, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Masahiro Matsumoto, Hiroshi Nakano, Akira Uenodan, Akira Kotabe
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Patent number: 11385165Abstract: According to some aspects, a sample isolation kit is provided. The sample isolation kit includes a housing configured to detachably couple to a sample fluid channel of a microchip and provide a sample to the microchip. The housing and the microchip are coupled using a hermetic seal. The sample isolation kit further includes a storage housing configured to detachably couple to an isolation channel of the microchip and receive a target biological sample isolated from the sample by the microchip. The storage housing and the microchip are coupled using a hermetic seal.Type: GrantFiled: March 10, 2017Date of Patent: July 12, 2022Assignee: Sony CorporationInventors: Yoichi Katsumoto, Masahiro Matsumoto, Kazuya Takahashi
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Publication number: 20220214197Abstract: A thermal sensor device capable of maintaining measurement accuracy for a long period by suppressing plastic deformation due to thermal expansion of the heat generating resistor and reducing resistance change of the heat generating resistor, includes: a substrate having an opening; and a diaphragm having a structure in which a lower film, a heat generating resistor, and an upper film are stacked so as to bridge the opening, in which a film thickness of the lower film is larger than a film thickness of the upper film, an average thermal expansion coefficient of the lower film is larger than an average thermal expansion coefficient of the upper film, the lower film includes a plurality of films having different thermal expansion coefficients, and a film having a largest thermal expansion coefficient among the plurality of films is formed below a thickness center of the lower film.Type: ApplicationFiled: June 9, 2020Publication date: July 7, 2022Applicant: Hitachi Astemo, Ltd.Inventors: Hiroshi NAKANO, Masahiro MATSUMOTO, Yasuo ONOSE, Kazuhiro OHTA
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Publication number: 20220214196Abstract: It is difficult for a conventional air flow rate meter to cope with a distorted waveform including harmonics like the pulsation waveform of an actual engine. An air flow rate meter 100A according to the present invention includes an air flow rate detection element 1 that generates an output signal corresponding to an air flow rate to be measured, a signal detector 2 that detects that the output signal from the air flow rate detection element 1 has passed a predetermined threshold, a pulse generator 3 that generates a pulse signal using the output signal from the signal detector 2 as a trigger, and an adder 4 that adds the output signal from the pulse generator 3 to the output signal from the air flow rate detection element 1.Type: ApplicationFiled: April 17, 2020Publication date: July 7, 2022Inventors: Masahiro MATSUMOTO, Hiroshi NAKANO, Akira KOTABE
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Patent number: 11381228Abstract: A sensor output circuit is limited with high accuracy, and reduces radio wave radiation by signal transmission using a single-line signal. The sensor output includes a pulse signal Vin that changes according to a physical quantity to be measured, MOS transistors that perform on/off operations according to the pulse signal Vin, a constant current source that generates a constant current, a MOS transistor which generates a gate voltage of a MOS transistor, MOS transistors which form a current mirror circuit, and the MOS transistor which works to maintain a drain voltage of the MOS transistor at a constant voltage, and the output terminal which is driven by the MOS transistors connected in series. In addition, an output signal from the sensor output circuit is transmitted to a control circuit via an output signal line. The control circuit includes a pull-up resistor, a capacitor, and an input gate circuit.Type: GrantFiled: November 8, 2018Date of Patent: July 5, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Masahiro Matsumoto, Hiroshi Nakano, Akira Kotabe
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Patent number: 11312942Abstract: Provided is a material-fixing substrate that does not have to use copper as a catalyst because the substrate-bonding site includes a cyclic alkyne to form a covalent bond with a surface of the substrate, and therefore that can reduce damage to a cell, for example, in a case where a to-be-fixed material is the cell. The material-fixing substrate has a to-be-fixed material fixed thereon via a material-fixing agent. The material-fixing agent includes: a substrate-bonding site that forms a covalent bond with a surface of the substrate and includes at least a cyclic alkyne; a hydrophilic site that is bonded to the substrate-bonding site; a light-responsive site that is bonded to the hydrophilic site and changes the skeleton thereof by irradiation with light; and an attachment site to which the to-be-fixed material is attached.Type: GrantFiled: May 2, 2017Date of Patent: April 26, 2022Assignee: SONY CORPORATIONInventors: Shunichi Suwa, Kunihiko Nagamine, Masahiro Matsumoto, Daisuke Yamaguchi, Yoshio Goto, Kyohei Yoshimitsu
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Publication number: 20220119336Abstract: The present invention has an object to provide a composition or the like capable of forming a film having high resolution and high sensitivity. The above object can be achieved by the following compound. An iodine-containing (meth)acrylate compound represented by the general formula (1): wherein R1 represents a hydrogen atom, a methyl group, or halogen; each R2 independently represents a hydrogen atom, a linear organic group having 1 to 20 carbon atoms, a branched organic group having 3 to 20 carbon atoms, or a cyclic organic group having 3 to 20 carbon atoms; A represents an organic group having 1 to 30 carbon atoms; n1 represents 0 or 1; and n2 represents an integer of 1 to 20.Type: ApplicationFiled: December 23, 2019Publication date: April 21, 2022Inventors: Tadashi OMATSU, Masahiro MATSUMOTO, Michihiro YURI, Kentaro KATAOKA, Takashi SATO, Masatoshi ECHIGO
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Patent number: 11302854Abstract: The purpose of the present invention is to provide a highly accurate and highly reliable physical quantity sensor wherein an error due to stress applied to a sensor element of the physical quantity sensor is reduced. This physical quantity sensor device is provided with: a hollow section formed in a Si substrate; an insulating film covering the hollow section; and a heating section formed in the insulating film. The sensor device is also provided with a detection element that detects the temperature of the insulating film above the hollow section, the detection element is provided with a first silicon element and a second silicon element, and the first silicon element and the second silicon element are doped with different impurities, respectively.Type: GrantFiled: July 1, 2015Date of Patent: April 12, 2022Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yoshimitsu Yanagawa, Yasuo Onose
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Publication number: 20210409012Abstract: A sensor output circuit is limited with high accuracy, and reduces radio wave radiation by signal transmission using a single-line signal. The sensor output includes a pulse signal Vin that changes according to a physical quantity to be measured, MOS transistors that perform on/off operations according to the pulse signal Vin, a constant current source that generates a constant current, a MOS transistor which generates a gate voltage of a MOS transistor, MOS transistors which form a current mirror circuit, and the MOS transistor which works to maintain a drain voltage of the MOS transistor at a constant voltage, and the output terminal which is driven by the MOS transistors connected in series. In addition, an output signal from the sensor output circuit is transmitted to a control circuit via an output signal line. The control circuit includes a pull-up resistor, a capacitor, and an input gate circuit.Type: ApplicationFiled: November 8, 2018Publication date: December 30, 2021Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Masahiro MATSUMOTO, Hiroshi NAKANO, Akira KOTABE
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Publication number: 20210389787Abstract: In a conventional electronic device, it is difficult to passively diagnose disconnection of an external capacitor added to an output terminal of a regulator circuit. An electronic device in this embodiment includes a regulator circuit 2 that outputs a constant voltage while external power supplied from the outside is input thereto, an external capacitor 3 connected to an output terminal of the regulator circuit 2 as an external component, an oscillation detector 4 that detects an oscillating state of the output voltage of the regulator circuit 2, and a failure determination unit 5 that outputs a failure signal when the oscillation detector 4 detects the oscillating state of the regulator circuit.Type: ApplicationFiled: October 23, 2019Publication date: December 16, 2021Inventors: Masahiro MATSUMOTO, Hiroshi NAKANO, Akira KOTABE
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Patent number: 11199541Abstract: According to some aspects, a method for analyzing a cell is provided. The method includes trapping the cell by binding a first molecule to the cell. The method further includes binding a second molecule to the cell. The second molecule includes a binding portion capable of specific binding to a cell-surface molecule of the cell. The second molecule further includes an identifying portion, a labeling portion coupled to the identifying portion, and a stimulus-degradable linker between the binding portion and the identification portion. The method further includes detaching the identifying portion from the binding portion by stimulating the stimulus-degradable linker where the detached identifying portion is coupled to the labeling portion. The method further includes binding the detached identifying portion through specific binding to an identifying portion recognizing molecule and detecting the labeling portion.Type: GrantFiled: August 4, 2016Date of Patent: December 14, 2021Assignee: Sony CorporationInventors: Masahiro Matsumoto, Masataka Shinoda, Yuuki Watanabe
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Patent number: 11105757Abstract: An object of the present invention is to provide a gas sensor device capable of detecting a temporal change with high accuracy and maintaining measurement accuracy over a long period under a temperature environment susceptible to a complicated and wide range of change. The gas sensor device includes: heat insulating films 8a and 8b formed on a substrate 2; a first heater 3 provided on the heat insulating films 8a and 8b and configured to measure physical quantity of gas; and a reference resistor 4 formed in a resistive layer same as the first heater and formed on the heat insulating films 8a and 8b. The gas sensor device further includes a second heater 5 that simultaneously heats the first heater 3 and the reference resistor 4.Type: GrantFiled: November 6, 2017Date of Patent: August 31, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yasuo Onose, Hiroaki Hoshika
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Publication number: 20210215523Abstract: Provided are a semiconductor device and a sensor system capable of achieving improvement of noise resistance. Thus, an output circuit 106a in the semiconductor device includes: input terminals 207n, 207p; and an output terminal 208; an output amplifier 201 connecting the input terminals 207n, 207p to the output terminal 208; a feedback element 203 returning the output terminal 208 to the input terminal 207n; a switching transistor 204; and a resistance element 206. A drain of the switching transistor 204 is connected to the input terminal 207n. The resistance element 206 is provided between a back gate of the switching transistor 204 and a power source Vdd and has impedance of a predetermined value or more for suppressing noise of a predetermined frequency generated at the input terminal 207n.Type: ApplicationFiled: May 9, 2019Publication date: July 15, 2021Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tatsuo NAKAGAWA, Akeo SATOH, Akira KOTABE, Masahiro MATSUMOTO
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Patent number: 11047822Abstract: A sensor device includes a detection resistor having a resistance value changing according to a physical quantity and a reference resistor compared with the detection resistor, the reference resistor is configured by electrically connecting a first resistance circuit and a second resistance circuit. The first resistance circuit includes a first and a second resistive element having positive and negative resistance temperature coefficients, respectively, which are electrically connected. The second resistance circuit includes a third and a fourth resistive elements having a positive and a negative resistance temperature coefficient, respectively, which are electrically connected. The first resistance circuit is configured to generate a first deviation to either the positive or negative side with respect to a temperature change, and the second resistance circuit is configured to generate a second deviation to the side opposite to the positive or negative side where the first deviation is generated.Type: GrantFiled: July 4, 2017Date of Patent: June 29, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yasuo Onose, Hiroaki Hoshika
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Patent number: 11043485Abstract: In a protective circuit of a conventional electronic device, surge resistance is low and it is difficult to connect an external connection terminal of an integrated circuit directly to an external connection terminal of the electronic device or the like. A protective circuit of an electronic device according to the present embodiment includes an external connection terminal 1 which is connected to an external signal; a wiring layer 2 which connects the external connection terminal 1 and a protective resistor 3; a protective resistor 3 which protects an internal circuit from surges or noises input from the external connection terminal 1; slits which divide the protective resistor 3; current distribution resistors which are constituted by dividing the protective resistor 3 by the slits; and MOS transistors which are connected to the current distribution resistors.Type: GrantFiled: December 20, 2017Date of Patent: June 22, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Masahiro Matsumoto, Hiroshi Nakano, Yoshimitsu Yanagawa, Akira Kotabe
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Publication number: 20210170402Abstract: A microparticle sorting microchip for a flow cytometer is provided to enable sorting of microparticles at higher speed, higher purity, and higher acquisition rate. The microparticle sorting microchip includes a main channel through which a microparticle-containing fluid flows, a trap channel coaxially communicating with the main channel, a trap chamber communicating with the trap channel, and a gate channel intersecting the trap channel. The trap channel has an opening intersecting the gate channel. The trap channel has a smaller cross-sectional area upstream of the opening than downstream of the opening along a direction in which the microparticle-containing fluid flows.Type: ApplicationFiled: November 9, 2018Publication date: June 10, 2021Applicant: Sony CorporationInventors: Tatsumi Ito, Kazuya Takahashi, Masahiro Matsumoto
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Publication number: 20210131847Abstract: Provided is a thermal flow rate meter capable of individually correcting different pulsation errors generated in an upstream side temperature sensor and a downstream side temperature sensor. A thermal flow rate meter 1 which measures a flow rate of a gas based on a temperature difference between an upstream side temperature sensor 12 and a downstream side temperature sensor 13, which are arranged on the upstream side and the downstream side of a heating element 11. The thermal flow rate meter includes: a detection element 10 that individually outputs an output signal of the upstream side temperature sensor 12 and an output signal of the downstream side temperature sensor 13; and compensator 20 that individually performs response compensation of the output signal of the upstream side temperature sensor 12 and the output signal of the downstream side temperature sensor 13.Type: ApplicationFiled: February 15, 2019Publication date: May 6, 2021Applicant: Hitachi Automotive Systems, Ltd.Inventors: Masahiro MATSUMOTO, Hiroshi NAKANO, Akira UENODAN, Akira KOTABE
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Publication number: 20210116274Abstract: In a flow rate sensor 10, a resistance bridge 100 detects a change in a gas flow rate. A differential A/D converter 122 converts an analog signal output from the resistance bridge 100 into a digital signal. A disconnection detection circuit 130 detects disconnection of bonding wires 164, 165 that connect the differential A/D converter 122 and the resistance bridge 100. The disconnection detection unit 130 includes a detection capacitance 141 and a comparator 145. One connection portion of the detection capacitance 141 is connected to an input node of the A/D converter 122. The comparator 145 detects the disconnection of the bonding wires 164, 165 based on a potential based on a ratio of an electrostatic capacitance of a P-side input capacitance 116 or a N-side input capacitance 117 to an electrostatic capacitance of the detection capacitance 141. The P-side input capacitance 116 and the N-side input capacitance 117 respectively are connected to operation input units of the differential A/D converter 122.Type: ApplicationFiled: May 20, 2019Publication date: April 22, 2021Inventors: Kazuo ONO, Masahiro MATSUMOTO