Patents by Inventor Takuya Ishihara
Takuya Ishihara 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: 11313746Abstract: A pressure sensor includes a movable electrode formed in a movable region of a diaphragm, and a fixed electrode formed opposite to the movable electrode. A pressure receiving surface of the diaphragm is held in an inactive state. The inactive pressure receiving surface of the diaphragm is in a state in which molecules of gas to be measured are hard to absorb onto the pressure receiving surface. The pressure receiving surface of the diaphragm can be made inactive by predetermined surface treatment. A layer for making the pressure receiving surface of the diaphragm inactive is formed by the surface treatment, and the pressure receiving surface of the diaphragm is held inactive with the presence of the layer.Type: GrantFiled: July 1, 2020Date of Patent: April 26, 2022Assignee: AZBIL CORPORATIONInventors: Masaru Soeda, Takuya Ishihara, Masashi Sekine
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Publication number: 20220118391Abstract: A pillar shaped honeycomb structure including pillar shaped honeycomb segments joined together via joining material layers, wherein each of the pillar shaped honeycomb segment includes: an outer peripheral wall; and a porous partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the cells extending from one end face to other end face to form a flow path, and wherein a metal member is embedded in each of the joining material layer.Type: ApplicationFiled: January 3, 2022Publication date: April 21, 2022Applicant: NGK INSULATORS, LTD.Inventors: Shuichi ICHIKAWA, Takuya ISHIHARA, Yukio MIYAIRI, Masaaki MASUDA
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Publication number: 20220120204Abstract: A pillar shaped honeycomb structure including pillar shaped honeycomb segments joined together via joining material layers, wherein each of the pillar shaped honeycomb segment includes: an outer peripheral wall; and a porous partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the plurality of cells extending from one end face to other end face to form a flow path, wherein a joining material forming the joining material layers includes magnetic particles, and wherein the joining material contains aggregates, and at least a part of the aggregates comprises the magnetic particles.Type: ApplicationFiled: December 28, 2021Publication date: April 21, 2022Applicant: NGK INSULATORS, LTD.Inventors: Shuichi ICHIKAWA, Takuya ISHIHARA, Yukio MIYAIRI, Masaaki MASUDA
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Publication number: 20220120203Abstract: A pillar shaped honeycomb structure includes: an outer peripheral wall; and a porous partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the plurality of cells extending from one end face to the other end face to form a flow path. The partition wall is a porous body containing aggregates and binding materials binding the aggregates. At least a part of the aggregates includes magnetic particles.Type: ApplicationFiled: December 27, 2021Publication date: April 21, 2022Applicant: NGK INSULATORS, LTD.Inventors: Shuichi ICHIKAWA, Takuya ISHIHARA, Yukio MIYAIRI, Masaaki MASUDA
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Publication number: 20210387667Abstract: A steering apparatus includes first and second electric motors that rotate a steering shaft via speed reduction mechanisms, and the motors being disposed to face each other. The first electric motor, a first motor pulley, a second motor pulley and the second electric motor are arranged in order in a rotation axis direction. When a first system electric actuator (including a first nut and the first electric motor) and a second system electric actuator (including a second nut and the second electric motor) are provided to the common steering shaft, in a first axis direction, the first and second nuts can be arranged close to each other, reducing sizes of the peripheries of the nuts.Type: ApplicationFiled: October 24, 2019Publication date: December 16, 2021Applicant: KNORR-BREMSE STEERING SYSTEM JAPAN LTD.Inventors: Takuya ISHIHARA, Toshiro YODA, Shogo ISHIKAWA
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Publication number: 20210255048Abstract: A pressure sensor includes a diaphragm of a thin plate shape, the diaphragm forming part of a wall surface of a pressure chamber into and out from which a measurement target fluid flows. Multiple recesses are formed in the diaphragm on a side in contact with the measurement target fluid, and an interval between adjacent two of the multiple recesses is 10 ?m or less.Type: ApplicationFiled: February 18, 2021Publication date: August 19, 2021Applicant: AZBIL CORPORATIONInventors: Yusuke NIIMURA, Takuya ISHIHARA, Masaru SOEDA, Masashi SEKINE
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Patent number: 11054331Abstract: An electrode pair that forms a pressure-sensitive capacitance Cx in the central portion of a diaphragm is called a first electrode pair (pressure-sensing electrode pair), and another electrode pair that forms a reference capacitance Cr in the circumferential portion of the diaphragm is called a second electrode pair (reference electrode pair). The ratio ?Cx/?Cr of a change ?Cx in the pressure-sensitive capacitance Cx, which is obtained from the pressure-sensing electrode pair at the time of evacuation, to a change ?Cr in the reference capacitance Cr, which is obtained from the reference electrode pair at the time of evacuation, is calculated as an index for malfunction detection ?. Then, the index for malfunction detection ? thus calculated is compared with the reference value ?ref, which represents the index observed during normal operation, and whether deformation due to a cause other than pressure has been generated in the diaphragm is determined.Type: GrantFiled: January 18, 2019Date of Patent: July 6, 2021Assignee: AZBIL CORPORATIONInventors: Takuya Ishihara, Masaru Soeda, Masashi Sekine
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Publication number: 20210188347Abstract: In a steering device of the present invention, an electric motor rotates a steering shaft through a reduction mechanism, and the reduction mechanism and a torque sensor are accommodated in an integrally-structured housing. With this, the present invention can provide a steering device that is capable of suppressing increase in size of the electric motor.Type: ApplicationFiled: August 22, 2019Publication date: June 24, 2021Applicant: KNORR-BREMSE STEERING SYSTEM JAPAN LTD.Inventor: Takuya ISHIHARA
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Patent number: 11027774Abstract: Provided is an actuator for a steering system, which can be increased in degree of freedom for design change, regardless of a configuration change of a hydraulic power steering side. The actuator for a steering system comprises a transmission mechanism configured to transmit the rotation of a steering shaft to a steered wheel, a piston disposed in the transmission mechanism, and a pair of pressure chambers configured to generate a force acting to move the piston. The actuator for a steering system is disposed between a hydraulic power steering system, which imparts a steering force to the steered wheel along with the movement of the piston, and a steering wheel.Type: GrantFiled: March 16, 2017Date of Patent: June 8, 2021Assignee: KNORR-BREMSE STEERING SYSTEM JAPAN LTD.Inventors: Toshiro Yoda, Takuya Ishihara
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Publication number: 20210003467Abstract: A pressure sensor includes a movable electrode formed in a movable region of a diaphragm, and a fixed electrode formed opposite to the movable electrode. A pressure receiving surface of the diaphragm is held in an inactive state. The inactive pressure receiving surface of the diaphragm is in a state in which molecules of gas to be measured are hard to absorb onto the pressure receiving surface. The pressure receiving surface of the diaphragm can be made inactive by predetermined surface treatment. A layer for making the pressure receiving surface of the diaphragm inactive is formed by the surface treatment, and the pressure receiving surface of the diaphragm is held inactive with the presence of the layer.Type: ApplicationFiled: July 1, 2020Publication date: January 7, 2021Applicant: AZBIL CORPORATIONInventors: Masaru Soeda, Takuya Ishihara, Masashi Sekine
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Publication number: 20200377147Abstract: A steering device includes: a first steering mechanism including a first ball nut steering, and a first motor actuator, the first ball nut steering including a first output shaft, a first ball screw, and a first transmitting mechanism, the first motor actuator arranged to provide a rotation force to the first output shaft, a second steering mechanism including a second ball nut steering, and a second motor actuator, the second ball nut steering including a second output shaft, a second ball screw, and a second transmitting mechanism, the second motor actuator arranged to provide a rotation force to the second output shaft, a connection member arranged to connect the first transmitting mechanism and the second transmitting mechanism so as to interlock a movement of the first transmitting mechanism and a movement of the second transmitting mechanism.Type: ApplicationFiled: July 26, 2018Publication date: December 3, 2020Applicant: KNORR-BREMSE STEERING SYSTEM JAPAN LTD.Inventors: Takuya ISHIHARA, Toshiro YODA
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Publication number: 20200347214Abstract: Provided is a sealing resin composition including an ethylene/unsaturated ester copolymer (A) and an acid-modified styrene copolymer (B), in which when a total content of the ethylene/unsaturated ester copolymer (A) and the acid-modified styrene copolymer (B) is 100% by mass, a content of the ethylene/unsaturated ester copolymer (A) is equal to or more than 60% by mass and equal to or less than 99% by mass, a content of the acid-modified styrene copolymer (B) is equal to or more than 1% by mass and equal to or less than 40% by mass, and an extraction amount into n-hexane is 100 mg/L or less.Type: ApplicationFiled: January 16, 2019Publication date: November 5, 2020Inventors: Takuya ISHIHARA, Koichiro YAMAMOTO
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Patent number: 10712220Abstract: Aiming to more easily perform calibration of a sensor output from a pressure sensor, the calibration being necessitated due to the occurrence of sedimentation, a resonance point measurement unit (122) measures a resonance point of a diaphragm (112) on the basis of the result obtained by performing measurement of a constant pressure using the pressure sensor while a power supply frequency is changed, a characteristic calculation unit (123) calculates, on the basis of the measured resonance point, an elastic modulus of the diaphragm (112) at the time of the measurement of the resonance point, and a correction unit (124) calculates a corrected sensor sensitivity resulting from correcting a sensor sensitivity of a sensor chip (101) on the basis of the elastic modulus calculated by the characteristic calculation unit (123).Type: GrantFiled: November 7, 2016Date of Patent: July 14, 2020Assignee: Azbil CorporationInventors: Hidenobu Tochigi, Takuya Ishihara
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Patent number: 10670481Abstract: A pressure introducing chamber is provided with a baffle plate which is positioned with one surface thereof facing in a direction orthogonal to a direction of travel of a measured medium introduced through a pressure introducing hole into the pressure introducing chamber. A first distance between a pressure receiving surface of a sensor diaphragm and an inner surface of the pressure introducing chamber facing the pressure receiving surface and a second distance between the pressure receiving surface of the sensor diaphragm and the other surface of the baffle plate facing the pressure receiving surface are both smaller than a mean free path of the measured medium in the entire region of the pressure receiving surface of the sensor diaphragm.Type: GrantFiled: February 14, 2018Date of Patent: June 2, 2020Assignee: AZBILL CORPORATIONInventors: Takuya Ishihara, Masaru Soeda, Masashi Sekine
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Patent number: 10620072Abstract: A base plate has pressure introducing holes at positions facing a diaphragm support portion. A thickness portion (thick portion) of the diaphragm support portion and a sensor base joined to the diaphragm support portion thus serves as a heat dissipating or absorbing portion and hinders the transfer of thermal energy of a measured medium to a sensor diaphragm.Type: GrantFiled: February 14, 2018Date of Patent: April 14, 2020Assignee: AZBIL CORPORATIONInventors: Masaru Soeda, Takuya Ishihara, Masashi Sekine, Hidenobu Tochigi
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Patent number: 10585010Abstract: A temperature difference calculation unit determines a temperature difference between a temperature measured by a first temperature measurement mechanism and a temperature measured by a second temperature measurement mechanism. The first temperature measurement mechanism is disposed on an outer wall surface of an inner container at a position corresponding to an element-arrangement-side space in the inner container. The second temperature measurement mechanism is disposed on an outer peripheral surface of a heater. The heater is disposed outside an outer container that accommodates the inner container and positioned on a wall surface of the outer container.Type: GrantFiled: March 8, 2018Date of Patent: March 10, 2020Assignee: AZBIL CORPORATIONInventors: Masashi Sekine, Takuya Ishihara, Masaru Soeda, Hidenobu Tochigi
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Patent number: 10520385Abstract: A state determination unit compares an output value obtained by a measuring unit with a reference characteristic value that serves as a reference, counts the number of times an excessive pressure application state occurs in which the output value is determined to be equal to or larger than the reference characteristic value, and determines whether the number of times reaches an upper limit that is set. An alarm output unit outputs an alarm when the state determination unit determines that the number of times the output value is equal to or larger than the reference characteristic value reaches the set upper limit.Type: GrantFiled: April 19, 2017Date of Patent: December 31, 2019Assignee: Azbil CorporationInventors: Masaru Soeda, Takuya Ishihara, Masashi Sekine, Hidenobu Tochigi
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Patent number: 10519834Abstract: A reducing agent injection device includes a honeycomb structure and a urea spraying device spraying a urea water solution in mist form. In addition, the reducing agent injection device includes a carrier gas inlet that introduces carrier gas f between the urea spraying device and the honeycomb structure. The exhaust gas treatment method of the present invention supplies the urea water solution from the urea spraying device into the cells from the first end face of the honeycomb structure body to generate the ammonia, while introducing the carrier gas f from the carrier gas inlet, and injecting the ammonia to the outside to treat exhaust gas containing NOX.Type: GrantFiled: March 14, 2017Date of Patent: December 31, 2019Assignee: NGK Insulators, Ltd.Inventors: Katsumi Saiki, Yoshimasa Omiya, Takuya Ishihara
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Publication number: 20190308660Abstract: Provided is an actuator for a steering system, which can be increased in degree of freedom for design change, regardless of a configuration change of a hydraulic power steering side. The actuator for a steering system comprises a transmission mechanism configured to transmit the rotation of a steering shaft to a steered wheel, a piston disposed in the transmission mechanism, and a pair of pressure chambers configured to generate a force acting to move the piston. The actuator for a steering system is disposed between a hydraulic power steering system, which imparts a steering force to the steered wheel along with the movement of the piston, and a steering wheel.Type: ApplicationFiled: March 16, 2017Publication date: October 10, 2019Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Toshiro YODA, Takuya ISHIHARA
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Publication number: 20190226936Abstract: An electrode pair that forms a pressure-sensitive capacitance Cx in the central portion of a diaphragm is called a first electrode pair (pressure-sensing electrode pair), and another electrode pair that forms a reference capacitance Cr in the circumferential portion of the diaphragm is called a second electrode pair (reference electrode pair). The ratio ?Cx/?Cr of a change ?Cx in the pressure-sensitive capacitance Cx, which is obtained from the pressure-sensing electrode pair at the time of evacuation, to a change ?Cr in the reference capacitance Cr, which is obtained from the reference electrode pair at the time of evacuation, is calculated as an index for malfunction detection ?. Then, the index for malfunction detection ? thus calculated is compared with the reference value ?ref, which represents the index observed during normal operation, and whether deformation due to a cause other than pressure has been generated in the diaphragm is determined.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: AZBIL CORPORATIONInventors: Takuya ISHIHARA, Masaru SOEDA, Masashi SEKINE