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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Publication number: 20230079532Abstract: To provide an airflow amount measuring device capable of accurately measuring a flow amount of air without occurrence of warpage in a thin film portion when an airflow measuring element is mounted on a lead frame to form a resin-sealed package in which the airflow amount measuring element and the lead frame are sealed. A chip package includes a lead frame, an element mounted on the lead frame and having a detection portion, and a structure for sealing the lead frame and the element such that at least the detection portion is exposed. Then, the curvature radius ? of the exposed portion of the element exposed from the sealing resin member is 2.13 or less.Type: ApplicationFiled: December 25, 2020Publication date: March 16, 2023Applicant: Hitachi Astemo, Ltd.Inventors: Binti Haridan FATIN FARHANAH, Hiroyuki ABE, Takayuki YOGO, Nozomi YATSUMONJI, Mizuki IJUIN
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Publication number: 20220390264Abstract: The objective of the present invention is to obtain a flow rate measurement device capable of reducing variations in the flow rate detection accuracy by suppressing the inclination of a chip package relative to a circuit board. A flow rate measurement device 20 of the present invention includes a chip package 310 having a flow rate sensor 311 and a passage wall 314 formed therein, and a circuit board 300 on which the chip package 310 is mounted, in which the chip package 310 is mounted such that the flow rate sensor 311 faces a portion of the circuit board 300 and a portion of the passage wall 314 as a resin portion of the chip package 310 contacts the circuit board 300.Type: ApplicationFiled: October 20, 2020Publication date: December 8, 2022Inventors: Takayuki YOGO, Binti Haridan FATIN FARHANAH, Akira UENODAN, Hiroyuki ABE, Mizuki IJUIN
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Patent number: 11480126Abstract: A flow-volume detecting apparatus including a flow-volume detecting unit which measures a flow volume of a measured fluid, a flow-volume state determining unit which determines a flow-volume state of the measured fluid based on an output from the flow-volume detecting unit. The flow-volume detecting apparatus further including a plurality of filters which process a flow-volume signal, and a filter selecting unit which selects a filter that processes the flow-volume signal, wherein the filter selecting unit selects the filter that processes the flow-volume signal according to the flow-volume state determined by the flow-volume state determining unit.Type: GrantFiled: September 15, 2017Date of Patent: October 25, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Yuki Isoya, Hiroaki Hoshika, Takahiro Miki, Takayuki Yogo, Takeo Hosokawa
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Patent number: 11353350Abstract: To obtain a low-pressure-loss physical quantity detection device that can detect a plurality of physical quantities of intake air. A physical quantity detection device of the present invention that detects a plurality of physical quantities of a measured gas flowing in a main passage, the physical quantity detection device includes: a circuit board on which a sensor that detects the plurality of physical quantities and an electronic component that controls the physical quantities are mountable; a circuit board accommodating unit that accommodates the circuit board; and a sub-passage in which a flow sensor is disposed. The circuit board is accommodated in the circuit board accommodating unit on an upstream side of the sub-passage, and disposed in parallel with the measured gas flowing through the main passage.Type: GrantFiled: August 6, 2018Date of Patent: June 7, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Akira Uenodan, Takahiro Miki, Takayuki Yogo, Binti Haridan Fatin Farhanah, Tsutomu Kono, Shinobu Tashiro
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Patent number: 11353349Abstract: A flow-rate sensor is provided with a lead frame, a semiconductor chip that is disposed on one surface of the lead frame, and in which a diaphragm including a void portion on the lead frame side is formed, a flow rate detecting unit that is formed on the one surface including the diaphragm of the semiconductor chip, and resin that includes a flow passage opening portion exposing at least a portion of the flow rate detecting unit formed on the diaphragm, and covers the lead frame and the semiconductor chip. A lower side resin portion of the resin covering another surface side of the lead frame, on an opposite side to the one surface side thereof, has a thinned portion that is thinner than a periphery thereof in a region facing a peripheral edge portion of the diaphragm.Type: GrantFiled: June 20, 2019Date of Patent: June 7, 2022Assignee: Hitachi Astemo, Ltd.Inventors: Hiroki Nakatsuchi, Yasuo Onose, Takayuki Yogo, Ryotaro Shimada
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Patent number: 11307072Abstract: A compact physical quantity detecting device is provided since it is possible to lower the mounting height of a chip package by accommodating the chip package in a notched board. In the physical quantity detecting device of the present invention, a part in a thickness direction of a support body on which a flow rate detection unit and a processing unit are mounted is accommodated in a notch provided in a printed board.Type: GrantFiled: February 14, 2019Date of Patent: April 19, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Binti Haridan Fatin Farhanah, Takayuki Yogo, Noboru Tokuyasu, Akira Uenodan, Takahiro Miki, Hiroaki Hoshika
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Publication number: 20220082421Abstract: An object is to improve measurement accuracy of a thermal air flow meter. A flow-rate measuring device comprising: a sensor assembly having a flow-rate detecting element; a circuit board on which the sensor assembly is mounted; and a housing on which the circuit board is mounted, wherein the sensor assembly is mounted on the circuit board such that a detection portion side of the flow-rate detecting element is closer to the housing, and the sensor assembly includes a contact portion in contact with the housing on the detection portion side.Type: ApplicationFiled: January 21, 2020Publication date: March 17, 2022Inventors: Masatoshi OGATA, Norio ISHITSUKA, Takahiro MIKI, Akira UENODAN, Takayuki YOGO
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Patent number: 11268920Abstract: To obtain a physical quantity detection device that can prevent a thermal influence on a sensor due to downsizing. A physical quantity detection device 20 of the present invention includes a measuring unit 213 protruding from an inner wall of a main passage 22 toward a passage center of the main passage. The physical quantity detection device 20 includes at least one of a flow sensor 205 that detects a flow rate of a measured gas 2, an intake air temperature sensor 203 that detects temperature, a pressure sensor 204 that detects pressure, and a humidity sensor 206 that detects humidity, and the sensors are disposed along a protruding direction of the measuring unit 213.Type: GrantFiled: July 30, 2018Date of Patent: March 8, 2022Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Takahiro Miki, Akira Uenodan, Takayuki Yogo, Binti Haridan Fatin Farhanah, Shinobu Tashiro, Tsutomu Kono
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Patent number: 11237035Abstract: A decrease in the accuracy after switching of the heating state can be reduced. The physical quantity detecting device includes: a flow rate detecting unit configured to include a heating element to measure a flow rate of a fluid to be measured; a heating element control unit configured to switch a control state of the heating element to any one of a heating state and a heating suppression state; and a signal processing unit configured to process a measured value of the flow rate detecting unit. When the heating element control unit switches the control state, the signal processing unit processes an estimated value determined based on a measured value of the flow rate detecting unit before the switching for a predetermined period immediately after the switching.Type: GrantFiled: December 7, 2018Date of Patent: February 1, 2022Assignee: HITACHI ASTEMO, LTD.Inventors: Yuki Isoya, Hiroaki Hoshika, Takayuki Yogo
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Publication number: 20210398886Abstract: To obtain a chip package positioning structure capable of adjusting a tilt and a position of a chip package with respect to the circuit board and reducing mounting variations. The chip package positioning and fixing structure that positions and fixes, to a circuit board 4, a chip package 5 in which a flow rate detection element 53 is sealed with a resin so that a detection portion is at least exposed, in which the chip package includes a solder fixation portion 52 that fixes the chip package to the circuit board by soldering, and a positioning portion 514 that performs positioning to the circuit board, and the positioning portion is provided closer to the flow rate detection element from the solder fixation portion.Type: ApplicationFiled: September 20, 2019Publication date: December 23, 2021Inventors: Binti Haridan FATIN FARHANAH, Takayuki YOGO, Hiroyuki ABE
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Publication number: 20210396561Abstract: Provided is a physical quantity measurement device capable of preventing a sealing of a cavity portion on a back surface side of a diaphragm of a thermal air flow rate sensor while improving measurement accuracy of the thermal air flow rate sensor as compared with the related art. A physical quantity measurement device 20 includes a lead frame 208f having a mounting surface f1 on which a flow rate sensor 205 which is the thermal air flow rate sensor is mounted, and a flow passage forming member 209 disposed on a back surface f2 opposite to the mounting surface f1 of the lead frame 208f.Type: ApplicationFiled: November 14, 2019Publication date: December 23, 2021Applicant: Hitachi Astemo, Ltd.Inventors: Takayuki YOGO, Binti Haridan FATIN FARHANAH, Hiroyuki ABE, Satoshi IKEO, Yuta CHIBA
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Patent number: 11143535Abstract: Provided is a thermal-type flowmeter which can prevent a reduction of flow rate accuracy and reliability, and an increase of cost of the thermal-type flowmeter compared to the related art, and can add a function of an electrostatic scattering mechanism. The thermal-type flowmeter of the present invention includes a sub-passage into which part of a measurement target gas flowing in a main passage is taken, a flow rate detection element of a flow measurement unit which is disposed in the sub-passage, a circuit package which supports the flow rate detection element, and a substrate to which the circuit package is fixed. The flow rate detection element includes a detection surface to detect a flow rate of the measurement target gas. The detection surface is disposed to face the circuit substrate.Type: GrantFiled: July 17, 2018Date of Patent: October 12, 2021Assignee: Hitachi Automotive Systems, Ltd.Inventors: Akira Uenodan, Takayuki Yogo, Tsubasa Watanabe, Takahiro Miki, Shinobu Tashiro, Hiroaki Hoshika
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Patent number: 11137292Abstract: A physical quantity detecting device includes a circuit board having a first support portion with a physical quantity detecting element, a second support portion with a temperature detecting element, and a housing molded by injection molding, the housing supporting the circuit board. The physical quantity detecting element is configured to detect a physical quantity of fluid and the temperature detecting element is configured to detect a temperature of the fluid. The second support portion protrudes from an edge of the circuit and has a third support portion supporting the second support portion in connection with the housing. The third support portion is located on a same side as the leading end portion, with respect to a base end portion, and located on a same side as the base end portion, with respect to an implementation portion on which the temperature detecting element is implemented.Type: GrantFiled: June 30, 2017Date of Patent: October 5, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Nozomi Yatsumonji, Hiroaki Hoshika, Takayuki Yogo, Takahiro Miki, Hiroyuki Abe
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Publication number: 20210278263Abstract: A flow-rate sensor is provided with a lead frame, a semiconductor chip that is disposed on one surface of the lead frame, and in which a diaphragm including a void portion on the lead frame side is formed, a flow rate detecting unit that is formed on the one surface including the diaphragm of the semiconductor chip, and resin that includes a flow passage opening portion exposing at least a portion of the flow rate detecting unit formed on the diaphragm, and covers the lead frame and the semiconductor chip. A lower side resin portion of the resin covering another surface side of the lead frame, on an opposite side to the one surface side thereof, has a thinned portion that is thinner than a periphery thereof in a region facing a peripheral edge portion of the diaphragm.Type: ApplicationFiled: June 20, 2019Publication date: September 9, 2021Inventors: Hiroki NAKATSUCHI, Yasuo ONOSE, Takayuki YOGO, Ryotaro SHIMADA
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Patent number: 11112287Abstract: A device which measures a physical quantity of a gas flowing through a main passage is described. The device includes a flange for fixing to the main passage; a housing that protrudes toward an inside of the main passage from the flange; and a printed circuit board fixed to the housing on which a measuring element that measures the physical quantity is mounted. Wiring of the printed circuit board has a plurality of irregularities formed along one direction of a surface, and the wiring is arranged such that a formation direction of the irregularities is oriented along a protruding direction of the housing toward an inside of the main passage. The irregularities may be polishing marks formed using a cylindrical polishing wheel or rolling marks of the wiring of the printed circuit board.Type: GrantFiled: January 31, 2019Date of Patent: September 7, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Norio Ishitsuka, Takayuki Yogo
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Patent number: 11079262Abstract: To obtain a physical quantity detection apparatus that can reduce the outer shape of a housing in size. A physical quantity detection apparatus 300 detects a plurality of physical quantities of gas 30 to be measured flowing in a main passage 124. The physical quantity detection apparatus 300 has a housing 302 disposed in the main passage 124, a circuit substrate 400 insert molded in the housing 302, and a plurality of detection sensors 452, 453, 454, 455, and 456 each mounted on each of one face and the other face of the circuit substrate 400.Type: GrantFiled: October 28, 2015Date of Patent: August 3, 2021Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Tsubasa Watanabe, Tsutomu Kono, Hiroaki Hoshika, Takahiro Miki, Takayuki Yogo
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Publication number: 20210148743Abstract: Provided is a thermal-type flowmeter which can prevent a reduction of flow rate accuracy and reliability, and an increase of cost of the thermal-type flowmeter compared to the related art, and can add a function of an electrostatic scattering mechanism. The thermal-type flowmeter of the present invention includes a sub-passage into which part of a measurement target gas flowing in a main passage is taken, a flow rate detection element of a flow measurement unit which is disposed in the sub-passage, a circuit package which supports the flow rate detection element, and a substrate to which the circuit package is fixed. The flow rate detection element includes a detection surface to detect a flow rate of the measurement target gas. The detection surface is disposed to face the circuit substrate.Type: ApplicationFiled: July 17, 2018Publication date: May 20, 2021Inventors: Akira UENODAN, Takayuki YOGO, Tsubasa WATANABE, Takahiro MIKI, Shinobu TASHIRO, Hiroaki HOSHIKA
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Publication number: 20210116279Abstract: A compact physical quantity detecting device is provided since it is possible to lower the mounting height of a chip package by accommodating the chip package in a notched board. In the physical quantity detecting device of the present invention, a part in a thickness direction of a support body on which a flow rate detection unit and a processing unit are mounted is accommodated in a notch provided in a printed board.Type: ApplicationFiled: February 14, 2019Publication date: April 22, 2021Applicant: Hitachi Automotive Systems, Ltd.Inventors: Binti Haridan FATIN FARHANAH, Takayuki YOGO, Noboru TOKUYASU, Akira UENODAN, Takahiro MIKI, Hiroaki HOSHIKA
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Patent number: 10961958Abstract: The purpose of the present invention is to reduce a load of preventing dew condensation, and to provide a highly reliable humidity detection device. In order to achieve the purpose, this humidity detection device is provided with: a humidity sensor having a humidity detection unit and a temperature detection unit; a heating resistor that heats the humidity sensor; and a heating control unit that controls a heating temperature of the heating resistor. The humidity detection device is characterized in having a target temperature storage unit that stores target temperatures of the heating resistor, said target temperatures having been determined corresponding to temperatures and humidities.Type: GrantFiled: March 25, 2015Date of Patent: March 30, 2021Assignee: Hitachi Automotive Systems, Ltd.Inventors: Takeo Hosokawa, Hiroaki Hoshika, Takayuki Yogo, Takahiro Miki, Yuki Isoya
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Patent number: 10928232Abstract: The purpose is to improve the measurement accuracy of a thermal air flow meter. The device has: an auxiliary passage for entraining a portion of a fluid being measured; a sensor chip arranged in the auxiliary passage, for measuring the flow rate of the fluid being measured; an electronic component having an internal resistor, for converting the fluid flow rate detected by the sensor chip to an electrical signal; and a substrate on which the sensor chip and the electronic component are mounted. The substrate is covered by a filler material, on the surface of which the electronic component is mounted.Type: GrantFiled: September 24, 2015Date of Patent: February 23, 2021Assignee: Hitachi Automotive Systems, Ltd.Inventors: Masatoshi Ogata, Norio Ishitsuka, Takayuki Yogo, Hiroaki Hoshika