Patents by Inventor Hideki Hanami
Hideki Hanami 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: 9939339Abstract: Provided is a pressure transmitter device including: a pressure receiving diaphragm in contact with a measuring fluid; a fill fluid, in contact with an opposite side of the pressure receiving diaphragm to the other side in contact with the measuring fluid, for transferring a pressure received by the pressure receiving diaphragm from the measuring fluid to a sensor disposed at a position apart from the pressure receiving diaphragm; a hydraulic path filled with the fill fluid and connecting the pressure receiving diaphragm and the sensor; and an output circuit for measuring and outputting an absolute pressure of the measuring fluid or a differential pressure between measuring fluids based on the pressure received by the sensor, where a hydrocarbon absorbing material for absorbing hydrocarbon and a hydrogen occlusion material for occluding hydrogen are provided inside the hydraulic path.Type: GrantFiled: March 21, 2016Date of Patent: April 10, 2018Assignee: Hitachi, Ltd.Inventors: Ryo Kuwana, Daisuke Shinma, Atsushi Fushimi, Hideki Hanami, Isao Hara
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Patent number: 9612173Abstract: In a pressure and pressure difference transmitter that seals a sealing liquid for transmitting the pressure inside a pressure leading passage, the pressure and pressure difference transmitter forming a space between a diaphragm and a main body side wall surface, including the pressure leading passage connected to the main body side wall surface, and transmitting the pressure received by the diaphragm to a sensor through the sealing liquid sealed in the space and the pressure leading passage, a hydrogen occluding material for occluding hydrogen atoms of the sealing liquid is disposed at least in the sealing liquid, the main body side wall surface, or a part of a portion from the main body side wall surface to the sensor, with the hydrogen occluding material being formed with an uneven shape on the surface or being attached with a granular hydrogen occluding material.Type: GrantFiled: November 4, 2014Date of Patent: April 4, 2017Assignee: Hitachi, Ltd.Inventors: Ryo Kuwana, Atsushi Fushimi, Daisuke Shinma, Hideki Hanami, Isao Hara
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Publication number: 20160299023Abstract: Provided is a pressure transmitter device including: a pressure receiving diaphragm in contact with a measuring fluid; a fill fluid, in contact with an opposite side of the pressure receiving diaphragm to the other side in contact with the measuring fluid, for transferring a pressure received by the pressure receiving diaphragm from the measuring fluid to a sensor disposed at a position apart from the pressure receiving diaphragm; a hydraulic path filled with the fill fluid and connecting the pressure receiving diaphragm and the sensor; and an output circuit for measuring and outputting an absolute pressure of the measuring fluid or a differential pressure between measuring fluids based on the pressure received by the sensor, where a hydrocarbon absorbing material for absorbing hydrocarbon and a hydrogen occlusion material for occluding hydrogen are provided inside the hydraulic path.Type: ApplicationFiled: March 21, 2016Publication date: October 13, 2016Inventors: Ryo KUWANA, Daisuke SHINMA, Atsushi FUSHIMI, Hideki HANAMI, Isao HARA
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Patent number: 9140620Abstract: Hydrogen which has entered into a pressure/differential pressure transmitter from external or internally generated hydrogen and hydrocarbons are converted to air bubbles within pressure guide paths. As a result, the indicated value drifts and an accurate numerical value is not output. A pressure/differential pressure transmitter includes a space formed between a diaphragm and a main body side wall face, pressure guide paths connected to the main body side wall face, a sealed liquid sealed in the space and the pressure guide paths to transmit a pressure received by the diaphragm to a sensor, and a hydrogen absorption material provided at least in the sealed liquid, on the main body side wall face, or in a part of a path between the main body side wall face and the sensor to absorb hydrogen atoms in the sealed liquid.Type: GrantFiled: September 12, 2013Date of Patent: September 22, 2015Assignee: HITACHI, LTD.Inventors: Ryo Kuwana, Atsushi Baba, Atsushi Fushimi, Daisuke Shinma, Hideki Hanami, Isao Hara, Takashi Ito
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Publication number: 20150228365Abstract: The present invention provides instrumentation equipment for a nuclear power plant in which the formation of bubbles in an impulse line can be surely inhibited and thereby reliability and maintainability are improved for a long period of time. Instrumentation equipment for a nuclear power plant including: a tubular impulse line provided on a site to measure a fluid to be measured in a primary system of a nuclear power plant; a sealed liquid filled within the impulse line; a pressure-sensing diaphragm provided in a state of closing one opening of the impulse line to receive a pressure of the fluid to be measured; a pressure sensor provided on another opening of the impulse line in a state of being exposed to the sealed liquid; and a hydrogen storage material provided within the impulse line.Type: ApplicationFiled: February 11, 2015Publication date: August 13, 2015Inventors: Setsuo Arita, Ryo Kuwana, Atsushi Baba, Atsushi Fushimi, Daisuke Shinma, Hideki Hanami, Isao Hara, Takashi Ito
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Publication number: 20150135842Abstract: In a pressure and pressure difference transmitter that seals a sealing liquid for transmitting the pressure inside a pressure leading passage, the pressure and pressure difference transmitter forming a space between a diaphragm and a main body side wall surface, including the pressure leading passage connected to the main body side wall surface, and transmitting the pressure received by the diaphragm to a sensor through the sealing liquid sealed in the space and the pressure leading passage, a hydrogen occluding material for occluding hydrogen atoms of the sealing liquid is disposed at least in the sealing liquid, the main body side wall surface, or a part of a portion from the main body side wall surface to the sensor, with the hydrogen occluding material being formed with an uneven shape on the surface or being attached with a granular hydrogen occluding material.Type: ApplicationFiled: November 4, 2014Publication date: May 21, 2015Inventors: Ryo KUWANA, Atsushi FUSHIMI, Daisuke SHINMA, Hideki HANAMI, Isao HARA
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Publication number: 20150107365Abstract: A pressure transmitter including tube-like pressure introducing pipes, a sealed-in liquid, the inside of the pressure introducing pipes being filled with the sealed-in liquid, pressure receiving diaphragms for receiving the pressures of measurement fluids, the pressure receiving diaphragms being set up in a state where one-side apertures in the pressure introducing pipes are blocked by the pressure receiving diaphragms, and a pressure sensor that is set up in common to the other-side apertures in the pressure introducing pipes in a state where the pressure sensor is exposed to the sealed-in liquid, wherein the sealed-in liquid is silicon oil containing phenyl groups, the pressure transmitter further including a hydrogen-storage material that is set up inside the pressure introducing pipes.Type: ApplicationFiled: October 16, 2014Publication date: April 23, 2015Inventors: Setsuo ARITA, Ryo KUWANA, Atsushi BABA, Atsushi FUSHIMI, Daisuke SHINMA, Hideki HANAMI, Isao HARA, Takashi ITOU
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Publication number: 20150107364Abstract: A pressure transmitter including tube-like pressure introducing pipes, a sealed-in liquid, the inside of the pressure introducing pipes being filled with the sealed-in liquid, pressure receiving diaphragms for receiving the pressures of measurement fluids, the pressure receiving diaphragms being set up in a state where one-side apertures in the pressure introducing pipes are blocked by the pressure receiving diaphragms, a pressure sensor that is set up in common to the other-side apertures in the pressure introducing pipes in a state where the pressure sensor is exposed to the sealed-in liquid, and hydrogen-permeation prevention layers that are set up on the pressure receiving diaphragms, wherein the pressure transmitter further includes a hydrogen-storage material that is set up inside the pressure introducing pipes.Type: ApplicationFiled: October 16, 2014Publication date: April 23, 2015Inventors: Ryo KUWANA, Setsuo ARITA, Atsushi BABA, Atsushi FUSHIMI, Daisuke SHINMA, Hideki HANAMI, Isao HARA, Takashi ITOU
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Publication number: 20140096613Abstract: Hydrogen which has entered into a pressure/differential pressure transmitter from external or internally generated hydrogen and hydrocarbons are converted to air bubbles within pressure guide paths. As a result, the indicated value drifts and an accurate numerical value is not output. A pressure/differential pressure transmitter includes a space formed between a diaphragm and a main body side wall face, pressure guide paths connected to the main body side wall face, a sealed liquid sealed in the space and the pressure guide paths to transmit a pressure received by the diaphragm to a sensor, and a hydrogen absorption material provided at least in the sealed liquid, on the main body side wall face, or in a part of a path between the main body side wall face and the sensor to absorb hydrogen atoms in the sealed liquid.Type: ApplicationFiled: September 12, 2013Publication date: April 10, 2014Applicant: HITACHI, LTD.Inventors: Ryo KUWANA, Atsushi BABA, Atsushi FUSHIMI, Daisuke SHINMA, Hideki HANAMI, Isao HARA, TAKASHI ITO
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Patent number: 8170696Abstract: This invention provides a process control simulator configured to efficiently debug a plant control system. A computer stores simulated data generated by a model executing part to a time-series memory area. A programmable controller stops input from the input-device interface when there is a virtual input/output request received. A virtual input/output processor sets simulated data from a time-series memory area of the computer to a time-series memory area of the programmable controller. A program executing part sets simulated data from the time-series memory area to a memory area at the same resolution as an arithmetic operation period of program execution and executes the program. Control output as a result of the execution is fed back to the model executing part of the computer, and the computer calculates simulated data as process value at this timing, and stores the data to its time-series memory area.Type: GrantFiled: March 24, 2008Date of Patent: May 1, 2012Assignee: Hitachi, Ltd.Inventors: Yasuhiro Nakashima, Yoshio Maruyama, Hideki Hanami, Sunao Masunaga
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Publication number: 20080243283Abstract: This invention provides a process control simulator configured to efficiently debug a plant control system. A computer stores simulated data generated by a model executing part to a time-series memory area. A programmable controller stops input from the input-device interface when there is a virtual input/output request received. A virtual input/output processor sets simulated data from a time-series memory area of the computer to a time-series memory area of the programmable controller. A program executing part sets simulated data from the time-series memory area to a memory area at the same resolution as an arithmetic operation period of program execution and executes the program. Control output as a result of the execution is fed back to the model executing part of the computer, and the computer calculates simulated data as process value at this timing, and stores the data to its time-series memory area.Type: ApplicationFiled: March 24, 2008Publication date: October 2, 2008Inventors: Yasuhiro Nakashima, Yoshio Maruyama, Hideki Hanami, Sunao Masunaga