Patents by Inventor Takayuki Yogo
Takayuki Yogo 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: 10584987Abstract: To prevent a circuit board and circuit board wiring from being damaged at the time of assembling a physical quantity detection device. A physical quantity detection device of the present invention is characterized by having, on a circuit board, a sensor unit wherein a flow rate detection unit is disposed, a circuit unit wherein a circuit element is disposed, and a partitioning wall that partitions the sensor unit and the circuit unit from each other. The physical quantity detection device is also characterized in that an internal layer conductor for electrically connecting the flow rate detection unit and the circuit unit to each other is provided on a circuit board internal layer where the partitioning wall is positioned.Type: GrantFiled: August 3, 2016Date of Patent: March 10, 2020Assignee: Hitachi Automotive Systems, Ltd.Inventors: Takayuki Yogo, Hiroyuki Abe, Hiroaki Hoshika, Takahiro Miki
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Publication number: 20200049538Abstract: An air flow rate measurement device capable of suppressing disturbance of a flow of measured gas and reducing a characteristic influence due to water droplets flowing with intake air is realized. An edge 800 of the upstream side where air flows in a circuit board 400 on which a flow rate detection portion 602 is mounted is provided with a segmentation portion 801 to be a semicircular notch structure to segment the edge 800. Water droplets flowing with measured gas 30 can be captured by the segmentation portion 801 to inhibit the water droplets from arriving at the flow rate detection portion 602.Type: ApplicationFiled: September 26, 2017Publication date: February 13, 2020Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takayuki YOGO, Naoki SAITO, Hiroaki HOSHIKA, Takahiro MIKI
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Publication number: 20190368439Abstract: An object of the present invention is to provide a flow-volume detecting apparatus capable of detecting a flow volume with high accuracy even in a state in which a measurement range is wide and a fluid is pulsating. A flow-volume detecting apparatus of the present invention includes a flow-volume detecting unit 602 which measures a flow volume of a measured fluid, a flow-volume state determining unit 415 which determines a flow-volume state of the measured fluid based on an output from the flow-volume detecting unit 602, a plurality of filters 811, 812, and 813 which process a flow-volume signal, and filter selecting units 807, 808, and 815 which select filters 811, 812, and 813 that process the flow-volume signal, in which the filter selecting units 807, 808, and 815 select a filter that processes the flow-volume signal according to the flow-volume state determined by the flow-volume state determining unit.Type: ApplicationFiled: September 15, 2017Publication date: December 5, 2019Applicant: Hitachi Automotive Systems, Ltd.Inventors: Yuki ISOYA, Hiroaki HOSHIKA, Takahiro MIKI, Takayuki YOGO, Takeo HOSOKAWA
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Patent number: 10401314Abstract: The present invention obtains a humidity measuring device capable of performing self-diagnosis with high reliability. This humidity measuring device 20 has a diagnosis processing unit 25 for performing self-diagnosis by using gas temperatures and gas humidities before and after a gas in an ambient atmosphere to be measured is heat-controlled. The diagnosis processing unit has a diagnosis start determining unit 26 for determining whether the self-diagnosis can be started on the basis of an exchange state in the ambient atmosphere to be measured and the gas temperature and the gas humidity before the gas in the ambient atmosphere to be measured is heat-controlled, and a diagnosis continuation determining unit 28 for determining whether the self-diagnosis can be continued on the basis of the gas temperature and the gas humidity that are heat-controlled during the self-diagnosis.Type: GrantFiled: January 4, 2016Date of Patent: September 3, 2019Assignee: Hitachi Automotive Systems, Ltd.Inventors: Yuki Isoya, Hiroaki Hoshika, Takayuki Yogo, Takahiro Miki, Takahiro Yamamoto
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Publication number: 20190267736Abstract: A semiconductor module includes: a circuit board on which a first semiconductor chip and a second semiconductor chip are mounted and includes a first through hole formed with a conductor foil therein; a press-fit terminal that is electrically connected to the conductor foil in the first through hole of the circuit board; and a second resin that is disposed on a surface side and a back surface side of the circuit board. Further, the press-fit terminal is provided with a pressure contact portion which is press-fitted into the first through hole and is electrically connected to the conductor foil in the first through hole, and the second resin on the surface side of the circuit board and the second resin on the back surface side of the circuit board are integrally formed via a second resin that is filled in the first through hole.Type: ApplicationFiled: October 17, 2017Publication date: August 29, 2019Inventors: Tsubasa WATANABE, Hiroaki HOSHIKA, Takayuki YOGO
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Patent number: 10371552Abstract: To improve measurement stability of a flow rate detection unit in a physical quantity detection device, a periphery of a synthetic resin material is provided with a protruding section protruding to a cover side. A physical quantity detection device includes a housing, a front cover fixed to the housing, a circuit board housed in the housing, a flow rate detection unit that detects, in a sub-path, the flow rate of a gas to be measured by being attached to the circuit board, a connecting wire that electrically connects the flow rate detection unit to the circuit board, and a synthetic resin material that seals a connecting wire-included connection portion between the circuit board and the flow rate detection unit, the front cover having a protruding section covering at least a part of the synthetic resin material by protruding into the sub-path.Type: GrantFiled: November 2, 2015Date of Patent: August 6, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takahiro Miki, Hiroaki Hoshika, Takayuki Yogo, Takahiro Yamamoto
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Publication number: 20190170589Abstract: An object of the present invention is to provide a physical quantity detecting device capable of inhibiting a cantilever-shaped portion of a circuit board from resonating.Type: ApplicationFiled: June 30, 2017Publication date: June 6, 2019Applicant: Hitachi Automotive Systems, Ltd.Inventors: Nozomi YATSUMONJI, Hiroaki HOSHIKA, Takayuki YOGO, Takahiro MIKI, Hiroyuki ABE
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Publication number: 20190120675Abstract: A physical quantity detection device includes: a housing; a circuit board; a resin material which covers the circuit board; a cover which forms a circuit chamber in which the circuit board is disposed and a flow path through which a gas to be measured passes together with the housing; and a conductor which is disposed to be exposed to the flow path, in which the conductor and the circuit board are electrically connected to each other.Type: ApplicationFiled: March 24, 2017Publication date: April 25, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsubasa WATANABE, Hiroaki HOSHIKA, Takayuki YOGO
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Patent number: 10217684Abstract: A resin molding includes a semiconductor element, a circuit board, and a resin. A conductor connected to the semiconductor element is formed on the circuit board. The resin is adhered and integrated with the circuit board. A resin leakage suppression layer including a material having a higher thermal conductivity than that of a material forming a surface layer of the circuit board is provided in an edge region extending along a portion adhered to the resin in the circuit board and extending along at least one-side side surface of the resin.Type: GrantFiled: June 14, 2016Date of Patent: February 26, 2019Assignee: Hitachi Automotive Systems, Ltd.Inventors: Tsubasa Watanabe, Tsutomu Kono, Takayuki Yogo, Hiroaki Hoshika
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Publication number: 20190056253Abstract: Provided is a physical-quantity detecting device having high reliability by preventing water droplets from attaching to a diaphragm area. A physical-quantity detecting device according to the present invention includes: a circuit board having provided thereon at least one detecting unit that detects a physical quantity of gas to be measured that passes through a main passage and also having provided thereon a circuit unit that executes computational processing on the physical quantity detected by the detecting unit; and a housing accommodating the circuit board, wherein the physical-quantity detecting unit on the circuit board is constructed to be exposed to the main passage. Furthermore, convex projections are provided around a through hole directly communicating with the physical-quantity detecting unit implemented on the circuit board.Type: ApplicationFiled: October 5, 2016Publication date: February 21, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Hiroyuki ABE, Takayuki YOGO
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Patent number: 10203257Abstract: In order to improve sensor characteristics and minimize variation in said characteristics, a pressure sensor is positioned upstream of a humidity sensor so as to help prevent water from contacting the humidity sensor and dust from adhering to the humidity sensor. This physical-quantity detection device 300 is characterized by having a detection unit 422 that detects humidity, a detection unit 421 that detects pressure, a circuit board 400 that has an electronic circuit that processes detection signals, and a housing 302 that accommodates the circuit board 400. The physical-quantity detection device 300 is also characterized in that the detection units 422, 421 are laid out on the surface of the circuit board 400 in a straight line in the direction in which a gas being measured flows, with the detection unit 421 that detects pressure positioned upstream of the detection unit 422 that detects humidity.Type: GrantFiled: June 15, 2015Date of Patent: February 12, 2019Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takayuki Yogo, Hiroaki Hoshika, Takahiro Miki
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Patent number: 10190898Abstract: The purpose of this invention is to obtain a physical-quantity detection device, the external shape of the housing of which can be reduced in size. Said physical-quantity detection device, which detects a plurality of physical quantities of a gas being measured that flows through a main channel, is characterized by having a housing positioned inside said main channel, a circuit board insert-molded into said housing, and a plurality of detection sensors mounted on both sides of the circuit board.Type: GrantFiled: June 15, 2015Date of Patent: January 29, 2019Assignee: Hitachi Automotive Systems, Ltd.Inventors: Takahiro Miki, Takayuki Yogo, Hiroaki Hoshika
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Publication number: 20180372520Abstract: The present invention reduces, by optimizing disposition of components on an electronic circuit board, heat transfer from other components mounted on the same board, and improves measurement accuracy of an intake air temperature detection element. A physical quantity detection device of the present invention has an electronic circuit board, which is provided with one or more intake air temperature detection elements (elements having intake air temperature detection function), and which processes electric signals. Furthermore, the physical quantity detection device has a configuration wherein the intake air temperature detection elements, and a power supply regulator having the maximum heat generation quantity are mounted on the same electronic circuit board. The physical quantity detection device is characterized in that the intake air temperature detection elements are disposed on the air flow upstream side of the power supply regulator.Type: ApplicationFiled: August 3, 2016Publication date: December 27, 2018Inventors: Takahiro YAMAMOTO, Hiroaki HOSHIKA, Takayuki YOGO, Takahiro MIKI, Takeo HOSOKAWA, Yuki ISOYA
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Publication number: 20180313681Abstract: The objective of the present invention is to provide an air flow rate detecting device with which the inflow of air to the reverse surface of a diaphragm is reduced, while stresses acting on a flow rate detecting unit are alleviated and variability in the mounting of the flow rate detecting unit is reduced. This air flow rate measuring device comprises: a flow rate detecting unit including a diaphragm which detects the air flow rate of a gas being measured; a circuit board on which the flow rate detecting unit is mounted; and a housing which accommodates the circuit board. The flow rate detecting unit and the circuit board are secured to one another using a sheet-like adhesive, and are secured in such a way that a surface of the flow rate detecting unit that is perpendicular to the direction of flow is sealed by means of a resilient body, and a surface of the flow rate detecting unit that is parallel to the direction of flow is open.Type: ApplicationFiled: February 26, 2016Publication date: November 1, 2018Inventors: Takayuki YOGO, Takahiro MIKI, Hiroaki HOSHIKA, Hiroyuki ABE
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Publication number: 20180283918Abstract: The purpose is to enhance the measurement stability of a flow rate detection unit in a physical quantity detection device by branching an auxiliary passage in which the flow rate detection unit is disposed into first to third passages and providing the third flow passage at an upstream part of the second flow passage. A physical quantity detection device has a circuit board provided with at least one detection unit for detecting the physical quantity of a gas flowing through a main passage and a circuit unit for computational processing of the physical quantity detected by the detection unit, a housing for accommodating the circuit board, a cover fixed to the housing, and an auxiliary passage formed by both the housing and cover that is configured to branch passages from a first passage to a third passage.Type: ApplicationFiled: August 3, 2016Publication date: October 4, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takahiro MIKI, Hiroaki HOSHIKA, Naoki SAITO, Takayuki YOGO, Takeo HOSOKAWA
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Patent number: 10031006Abstract: In a module in which a circuit board is integrally insert molded with a housing while semiconductor parts mounted on the circuit board are exposed, deformation of the circuit board caused by pressure on the circuit board by a mold for blocking the molding resin is reduced. In the module in which the circuit board is integrally insert molded with the housing while the semiconductor parts mounted on the circuit board are exposed, the deformation of the circuit board is reduced by placing a material, which has an elastic modulus smaller than the elastic modulus of the printed circuit board, in the projection area of the mold holding portion on the circuit board.Type: GrantFiled: June 15, 2015Date of Patent: July 24, 2018Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsubasa Watanabe, Tsutomu Kono, Hiroaki Hoshika, Takayuki Yogo, Takahiro Miki
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Publication number: 20180195984Abstract: The purpose of the present invention is to enhance the detection accuracy of an absolute humidity determined from at least temperature and relative humidity when carrying out temperature control using a heating element according to detection characteristics for temperature and relative humidity. A physical quantity detection device according to the present invention is provided with a humidity sensor for detecting relative humidity and temperature, a heater for heating the humidity sensor, and a microcomputer and controls the heat generation amount of the heater by using the heater for heating and stopping heating such that an environment under measurement is at least a room temperature and is a temperature at which a relative humidity detection characteristic and temperature detection characteristic for the humidity sensor improve, thereby enhancing the accuracy of absolute humidity detection.Type: ApplicationFiled: July 29, 2016Publication date: July 12, 2018Inventors: Yuki ISOYA, Hiroaki HOSHIKA, Takayuki YOGO, Takahiro MIKI, Takeo HOSOKAWA
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Publication number: 20180188084Abstract: To prevent a circuit board and circuit board wiring from being damaged at the time of assembling a physical quantity detection device. A physical quantity detection device of the present invention is characterized by having, on a circuit board, a sensor unit wherein a flow rate detection unit is disposed, a circuit unit wherein a circuit element is disposed, and a partitioning wall that partitions the sensor unit and the circuit unit from each other. The physical quantity detection device is also characterized in that an internal layer conductor for electrically connecting the flow rate detection unit and the circuit unit to each other is provided on a circuit board internal layer where the partitioning wall is positioned.Type: ApplicationFiled: August 3, 2016Publication date: July 5, 2018Inventors: Takayuki YOGO, Hiroyuki ABE, Hiroaki HOSHIKA, Takahiro MIKI
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Patent number: 10006392Abstract: To achieve a physical quantity detection device capable of obtaining a desired overall device accuracy without unnecessarily raising the tolerances of detection elements, the present invention is characterized by having a plurality of physical quantity detection units for respectively detecting plurality of physical quantities, a storage unit for storing the error characteristics of individual physical quantity detection units, a physical quantity calculation unit for using at least two physical quantities detected by at least two of the plurality of physical quantity detection units to calculate a separate physical quantity, and an error calculation unit for reading the error characteristics of the plurality of physical quantity detection units from the storage unit and calculating the error of the separate physical quantity.Type: GrantFiled: January 7, 2015Date of Patent: June 26, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Hiroaki Hoshika, Takayuki Yogo, Takahiro Miki, Takeo Hosokawa, Yuki Isoya
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Publication number: 20180158743Abstract: A resin molding includes a semiconductor element, a circuit board, and a resin. A conductor connected to the semiconductor element is formed on the circuit board. The resin is adhered and integrated with the circuit board. A resin leakage suppression layer including a material having a higher thermal conductivity than that of a material forming a surface layer of the circuit board is provided in an edge region extending along a portion adhered to the resin in the circuit board and extending along at least one-side side surface of the resin.Type: ApplicationFiled: June 14, 2016Publication date: June 7, 2018Inventors: Tsubasa WATANABE, Tsutomu KONO, Takayuki YOGO, Hiroaki HOSHIKA