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).

  • Publication number: 20220167944
    Abstract: An ultrasonic element includes at least one cMUT provided to a substrate, wherein the cMUT includes a first electrode provided to the substrate, a frame member having a cavity, a second electrode disposed to face the first electrode with the cavity interposed between the second electrode and the first electrode, and a protective layer covering the second electrode, a length of the cavity in an X axis direction being longer than a width of the cavity in a Y axis direction, the protective layer having a convex region extending in the X axis direction, a width of the convex region in the Y axis direction varying.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 2, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Kazuya MATSUMOTO, Masahiro KATASHIRO
  • Publication number: 20220163597
    Abstract: Provided is a battery residual value determination system capable of easily and accurately determining the residual value of a battery. The battery residual value determination system includes: a battery information reception unit that receives information on the voltage, the current, the temperature, and the period of time elapsed from the time of manufacture of a battery; a first residual value determination unit that determines a first residual value indicating the SOH of the battery; an attenuation function determination unit that determines an attenuation function which indicates a time-dependent change of the SOH specific to the battery and is used for correcting the first residual value of the battery; and a second residual value output unit that determines and outputs a second residual value obtained by correcting the first residual value by using the attenuation function according to the period of time elapsed from the time of manufacture of the battery.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 26, 2022
    Inventors: Ichiro Munakata, Toshiaki Kanari, Masahiro Shoji, Katsunari Matsumoto, Ryo Ishigami, Takanori Anrui, Misaki Shimoyamada, Hideki Shoji
  • Patent number: 11312942
    Abstract: 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: Grant
    Filed: May 2, 2017
    Date of Patent: April 26, 2022
    Assignee: SONY CORPORATION
    Inventors: Shunichi Suwa, Kunihiko Nagamine, Masahiro Matsumoto, Daisuke Yamaguchi, Yoshio Goto, Kyohei Yoshimitsu
  • Publication number: 20220119336
    Abstract: 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: Application
    Filed: December 23, 2019
    Publication date: April 21, 2022
    Inventors: Tadashi OMATSU, Masahiro MATSUMOTO, Michihiro YURI, Kentaro KATAOKA, Takashi SATO, Masatoshi ECHIGO
  • Patent number: 11302854
    Abstract: 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: Grant
    Filed: July 1, 2015
    Date of Patent: April 12, 2022
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yoshimitsu Yanagawa, Yasuo Onose
  • Publication number: 20210409012
    Abstract: 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: Application
    Filed: November 8, 2018
    Publication date: December 30, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masahiro MATSUMOTO, Hiroshi NAKANO, Akira KOTABE
  • Publication number: 20210389787
    Abstract: 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: Application
    Filed: October 23, 2019
    Publication date: December 16, 2021
    Inventors: Masahiro MATSUMOTO, Hiroshi NAKANO, Akira KOTABE
  • Patent number: 11199541
    Abstract: 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: Grant
    Filed: August 4, 2016
    Date of Patent: December 14, 2021
    Assignee: Sony Corporation
    Inventors: Masahiro Matsumoto, Masataka Shinoda, Yuuki Watanabe
  • Patent number: 11105757
    Abstract: 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: Grant
    Filed: November 6, 2017
    Date of Patent: August 31, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yasuo Onose, Hiroaki Hoshika
  • Publication number: 20210215523
    Abstract: 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: Application
    Filed: May 9, 2019
    Publication date: July 15, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tatsuo NAKAGAWA, Akeo SATOH, Akira KOTABE, Masahiro MATSUMOTO
  • Patent number: 11047822
    Abstract: 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: Grant
    Filed: July 4, 2017
    Date of Patent: June 29, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yasuo Onose, Hiroaki Hoshika
  • Patent number: 11043485
    Abstract: 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: Grant
    Filed: December 20, 2017
    Date of Patent: June 22, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masahiro Matsumoto, Hiroshi Nakano, Yoshimitsu Yanagawa, Akira Kotabe
  • Publication number: 20210170402
    Abstract: 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: Application
    Filed: November 9, 2018
    Publication date: June 10, 2021
    Applicant: Sony Corporation
    Inventors: Tatsumi Ito, Kazuya Takahashi, Masahiro Matsumoto
  • Publication number: 20210131847
    Abstract: 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: Application
    Filed: February 15, 2019
    Publication date: May 6, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Masahiro MATSUMOTO, Hiroshi NAKANO, Akira UENODAN, Akira KOTABE
  • Publication number: 20210116274
    Abstract: 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: Application
    Filed: May 20, 2019
    Publication date: April 22, 2021
    Inventors: Kazuo ONO, Masahiro MATSUMOTO
  • Patent number: 10980114
    Abstract: A printed circuit board according to one embodiment of the present invention is a printed circuit board including a plate-shaped or a sheet-shaped insulating material having a penetrating hole, and a metal plating layer layered on both surfaces of the insulating material and an inner peripheral surface of the insulating material, wherein an inner diameter of the penetrating hole monotonically decreases from a top surface of the insulating material toward a back surface, and wherein the inner diameter of the penetrating hole at a center in a thickness direction of the insulating material is smaller than an average of an opening diameter on the top side and an opening diameter on the back side.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 13, 2021
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC PRINTED CIRCUITS, INC.
    Inventors: Eiko Imazaki, Koji Nitta, Kousuke Miura, Shoichiro Sakai, Kenji Takahashi, Masahiro Matsumoto, Hirohisa Saito
  • Publication number: 20210040426
    Abstract: To provide a cell evaluation device capable of evaluating cells and a secretory substance emitted from the cells accurately and precisely. Provided is a cell evaluation device including a first capturing unit that captures a secretory substance secreted by cells, and an image acquisition unit that acquires an image obtained by imaging observation light of the cells and light emitted from a luminescent substance bonded to the secretory substance, in which the image acquisition unit and the first capturing unit are disposed in this order, and the image acquisition unit acquires position information for the cells and the secretory substance.
    Type: Application
    Filed: January 17, 2019
    Publication date: February 11, 2021
    Inventors: SHIORI SASADA, KOJI FUTAMURA, KENJI TANAKA, TOMOYUKI UMETSU, MASAHIRO MATSUMOTO
  • Patent number: 10917967
    Abstract: A printed wiring board includes an insulator having a first surface, and a second surface opposite to the first surface, a through-hole penetrating from the first surface to the second surface, and a metal plated layer formed on the first and second surfaces of the insulator, and on an inner peripheral surface of the through-hole, wherein an inside diameter of the through-hole gradually decreases from the first surface toward the second surface of the insulator. An average diameter of the through-hole is 20 ?m or greater and 35 ?m or less at the first surface, and is 3 ?m or greater and 15 ?m or less at the second surface, and an average thickness of the metal plated layer formed on the first and second surfaces is 8 ?m or greater and 12 ?m or less.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 9, 2021
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kenji Takahashi, Eiko Imazaki, Koji Nitta, Shoichiro Sakai, Kousuke Miura, Masahiro Matsumoto, Hirohisa Saito
  • Patent number: 10907999
    Abstract: To provide a gas sensor device having improved measurement accuracy. This gas sensor device is provided with: a sensor element that detects the concentration of a gas by means of heat dissipation from a heat generating body; and a cover with which the sensor element is covered. The cover has a plurality of ventilation sections, which are disposed by being separated with each other in the direction perpendicular to the flowing direction of the gas, and the sensor element is disposed between the ventilation sections.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: February 2, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi Nakano, Masahiro Matsumoto, Yasuo Onose, Yoshimitsu Yanagawa
  • Patent number: 10882471
    Abstract: Even when a positive/negative surge is applied to a power-supply line, occurrence of malfunction in a semiconductor device is lessened. In an in-vehicle semiconductor device, regulators convert an externally-supplied voltage to generate voltages. A voltage monitoring unit includes a voltage monitoring circuit and a switch, and monitors first to third voltages. An internal circuit has a processor operated by the voltage, and an oscillator operated by the voltage and generating a clock signal to be provided the processor. The voltage monitoring unit stops providing the clock signal to the processor when the voltage level of at least any one of the first to third voltages is below a set value. The voltage monitoring unit provides the clock signal to the processor when the voltage levels of all the first to third voltages exceed the set value.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: January 5, 2021
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshimitsu Yanagawa, Masahiro Matsumoto, Hiroshi Nakano, Akira Kotabe