Patents by Inventor Takashi Hirayama
Takashi Hirayama 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: 20240003842Abstract: A sensor control apparatus of a gas concentration detecting apparatus is provided with a sensor detecting unit, a temperature detecting unit, a heater control unit, a change rate calculation unit and a calibration outputting unit. The change rate calculation unit calculates a change rate of a heater current flowing through a heater when a heater control unit maintains the temperature of a sensor cell detected by a temperature detecting unit to be at a target temperature. The calibration outputting unit utilizes a change rate of a heater current to calibrate the sensor output as a sensor current detected by the sensor detecting unit and calculates a sensor calibration output of a gas sensor.Type: ApplicationFiled: September 15, 2023Publication date: January 4, 2024Inventor: Takashi HIRAYAMA
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Publication number: 20230348199Abstract: According to an embodiment, an information processing device includes a first communication unit, second communication unit, and processor. The first communication unit transmits/receives data to/from a measurement device measuring, in a first transport mechanism transporting articles to an external device, a distance to each part in a predetermined region including the articles transported by the first transport mechanism. The second communication unit transmits/receives data to/from a speed control mechanism controlling a transport speed of a second transport mechanism transporting the articles to the first transport mechanism. The processor acquires distance information indicating the distance to each part in the predetermined region from the measurement device, sets a transport speed of the second transport mechanism based on the acquired distance information, and transmits speed information indicating the set transport speed of the second transport mechanism to the speed control mechanism.Type: ApplicationFiled: June 30, 2023Publication date: November 2, 2023Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATIONInventors: Moriaki TORII, Yasuhiro OHKAWA, Takuma AKAGI, Takashi HIRAYAMA, Yuhi MINAMINO, Reiya ASANUMA, Hiroaki FUJIHARA
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Publication number: 20230034036Abstract: A pulse tube cryocooler includes a pulse tube; a bidirectional flow path that is connected to the pulse tube, and through which a pulse tube inflow and a pulse tube outflow alternately flow; a DC flow generator that is disposed in the bidirectional flow path, causes a first pressure drop in the pulse tube inflow, and causes a second pressure drop different from the first pressure drop in the pulse tube outflow; and a flow rate regulator that is disposed in the bidirectional flow path in series with the DC flow generator, and adjusts flow rates of the pulse tube inflow and the pulse tube outflow.Type: ApplicationFiled: September 21, 2022Publication date: February 2, 2023Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Takashi HIRAYAMA
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Patent number: 11326811Abstract: A cryogenic refrigerator includes a pulse tube cryocooler including a pulse tube, and a pulse tube cryocooler rotating mechanism that rotatably supports the pulse tube cryocooler allowing it to be changed from a cooling posture to a heating posture. When the pulse tube cryocooler is in the cooling posture, an inclination angle formed between a vertical line and a center axis of the pulse tube is a first angle, and when the pulse tube cryocooler is in the heating posture, the inclination angle is a second angle. In a case where the inclination angle formed when a cold end of the pulse tube faces vertically downward is defined as zero degrees and the inclination angle formed when the cold end of the pulse tube faces vertically upward is defined as 180 degrees, the second angle is larger than the first angle.Type: GrantFiled: January 29, 2020Date of Patent: May 10, 2022Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Takashi Hirayama
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Patent number: 11156387Abstract: A cryocooler includes a cold head, a valve unit which includes a rotary valve configured to periodically switch a pressure of a working gas in the cold head between a first high pressure and a second high pressure lower than the first high pressure and a valve motor configured to rotate the rotary valve, the valve unit having a rotation angle range in which the rotary valve seals the working gas having the second high pressure in the cold head, a cryocooler control unit configured to control the valve motor, a cryocooler stop instruction unit configured to output a cryocooler stop instruction signal to the cryocooler control unit, and a valve stop timing control unit configured to control the valve motor to stop the rotary valve in the rotation angle range, according to the cryocooler stop instruction signal.Type: GrantFiled: May 30, 2019Date of Patent: October 26, 2021Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Takashi Hirayama
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Patent number: 11118818Abstract: A pulse tube cryocooler which includes a pulse tube having a pulse tube high-temperature end and a pulse tube low-temperature end, and extending in an axial direction from the pulse tube high-temperature end to the pulse tube low-temperature end. The pulse tube cryocooler further includes a regenerator having a regenerator high-temperature end and a regenerator low-temperature end, and being disposed rowed alongside the pulse tube, with the regenerator high-temperature end being positioned displaced, in terms of the axial direction, from the pulse tube high-temperature end toward the cryocooler low-temperature side, and the regenerator low-temperature end being fluid-passage linked with the pulse tube low-temperature end and a pressure-switching valve for connecting the regenerator high-temperature end to a high-pressure source and to a low-pressure source in alternation, and being disposed between the pulse tube high-temperature end and the regenerator high-temperature end in terms of the axial direction.Type: GrantFiled: January 24, 2019Date of Patent: September 14, 2021Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Takashi Hirayama, Mingyao Xu
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Patent number: 10976080Abstract: A pulse tube cryocooler is furnished with a second-stage cooling stage and an insert. The second-stage cooling stage has a lateral-surface opening, and a first heat-exchange surface extending in a sideways direction from the lateral-surface opening into the second-stage cooling stage. The insert includes a base-end portion fixedly fitted into the second-stage cooling stage to plug the lateral-surface opening, and a second heat-exchange surface that extends in the sideways direction from the base-end portion and is disposed inside the second-stage cooling stage, opposing the first heat-exchange surface. Between the first heat-exchange surface and the second heat-exchange surface the insert forms a clearance that flows a working gas, bringing both the first heat-exchange surface and the second heat-exchange surface into contact with the working gas.Type: GrantFiled: December 26, 2018Date of Patent: April 13, 2021Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Mingyao Xu, Takashi Hirayama
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Patent number: 10710812Abstract: A physical distribution system includes first and second conveyance paths, first and second sensors, and a processor. The first sensor detects a package passing along the first conveyance path. The second conveyance path merges with the first conveyance path at a junction. The second sensor detects a package passing along the second conveyance path. The processor counts a first number of packages present in a first convergence monitoring section determined in the first conveyance path upstream the junction, and counts a second number of packages present in a second convergence monitoring section determined in the second conveyance path upstream the junction, determines an order in which packages in the first and second convergence monitoring sections pass the junction, based on the first number and the second number, and control the first and second conveyance paths, such that the packages pass the junction in the determined order.Type: GrantFiled: December 7, 2018Date of Patent: July 14, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORP.Inventors: Yuhi Minamino, Takashi Hirayama, Tetsuo Watanabe, Hiroyoshi Sekine
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Publication number: 20200166247Abstract: A cryogenic refrigerator includes a pulse tube cryocooler including a pulse tube, and a pulse tube cryocooler rotating mechanism that rotatably supports the pulse tube cryocooler allowing it to be changed from a cooling posture to a heating posture. When the pulse tube cryocooler is in the cooling posture, an inclination angle formed between a vertical line and a center axis of the pulse tube is a first angle, and when the pulse tube cryocooler is in the heating posture, the inclination angle is a second angle. In a case where the inclination angle formed when a cold end of the pulse tube faces vertically downward is defined as zero degrees and the inclination angle formed when the cold end of the pulse tube faces vertically upward is defined as 180 degrees, the second angle is larger than the first angle.Type: ApplicationFiled: January 29, 2020Publication date: May 28, 2020Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Takashi HIRAYAMA
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Publication number: 20190391109Abstract: A gas sensor is equipped with a sensor device made of a stack of a solid electrolyte body, a sensor electrode, a reference electrode, a first insulator, a second insulator, a gas chamber, a reference gas duct, a heater, and a heat transfer member. The heater has a heating element at least partially overlapping the sensor electrode and the reference electrode. The heat transfer member is made of a dense metallic oxide material which blocks passage of measurement gas therethrough. The heat transfer member is held between the sensor electrode and the first insulator in which the heater is embedded within the gas chamber and works to facilitate transfer of thermal energy, as generated by the heater, to the solid electrolyte body, the sensor electrode, and the reference electrode. This results in enhanced thermal conductivity of the sensor device and achieves quick activation of the sensor device.Type: ApplicationFiled: June 25, 2019Publication date: December 26, 2019Inventors: Shota HAGINO, Masatoshi IKEDA, Makoto ITO, Zhenzhou SU, Hao WU, Takashi HIRAYAMA, Daisuke KAWAI, Satoshi NAKAMURA
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Publication number: 20190283975Abstract: A physical distribution system includes first and second conveyance paths, first and second sensors, and a processor. The first sensor detects a package passing along the first conveyance path. The second conveyance path merges with the first conveyance path at a junction. The second sensor detects a package passing along the second conveyance path. The processor counts a first number of packages present in a first convergence monitoring section determined in the first conveyance path upstream the junction, and counts a second number of packages present in a second convergence monitoring section determined in the second conveyance path upstream the junction, determines an order in which packages in the first and second convergence monitoring sections pass the junction, based on the first number and the second number, and control the first and second conveyance paths, such that the packages pass the junction in the determined order.Type: ApplicationFiled: December 7, 2018Publication date: September 19, 2019Inventors: Yuhi MINAMINO, Takashi HIRAYAMA, Tetsuo WATANABE, Hiroyoshi SEKINE
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Publication number: 20190277541Abstract: A cryocooler includes a cold head, a valve unit which includes a rotary valve configured to periodically switch a pressure of a working gas in the cold head between a first high pressure and a second high pressure lower than the first high pressure and a valve motor configured to rotate the rotary valve, the valve unit having a rotation angle range in which the rotary valve seals the working gas having the second high pressure in the cold head, a cryocooler control unit configured to control the valve motor, a cryocooler stop instruction unit configured to output a cryocooler stop instruction signal to the cryocooler control unit, and a valve stop timing control unit configured to control the valve motor to stop the rotary valve in the rotation angle range, according to the cryocooler stop instruction signal.Type: ApplicationFiled: May 30, 2019Publication date: September 12, 2019Inventor: Takashi Hirayama
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Patent number: 10393416Abstract: An evaporator includes a leeward upper header portion, a leeward lower header portion, a refrigerant inlet, leeward heat exchange tubes, a windward upper header portion, a windward lower header portion, a refrigerant outlet, windward heat exchange tubes, and a resistance divider. The resistance divider has at least one refrigerant passage hole and at least one communication path and is provided in the leeward upper header portion or the leeward lower header portion at a position corresponding to a first row of the leeward heat exchange tubes. The refrigerant inlet is in communication with the first row via the at least one refrigerant passage hole. The refrigerant inlet is in communication with the second row via the at least one communication path.Type: GrantFiled: April 26, 2018Date of Patent: August 27, 2019Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Osamu Kamoshida, Naohisa Higashiyama, Motoyuki Takagi, Takashi Hirayama
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Publication number: 20190226725Abstract: A pulse tube cryocooler includes: a pulse tube having a pulse tube high-temperature end and a pulse tube low-temperature end, and extending in an axial direction from the pulse tube high-temperature end to the pulse tube low-temperature end; a regenerator having a regenerator high-temperature end and a regenerator low-temperature end, and being disposed rowed alongside the pulse tube, with the regenerator high-temperature end being positioned displaced, in terms of the axial direction, from the pulse tube high-temperature end toward the cryocooler low-temperature side, and the regenerator low-temperature end being fluid-passage linked with the pulse tube low-temperature end; and a pressure-switching valve for connecting the regenerator high-temperature end to a high-pressure source and to a low-pressure source in alternation, and being disposed between the pulse tube high-temperature end and the regenerator high-temperature end in terms of the axial direction.Type: ApplicationFiled: January 24, 2019Publication date: July 25, 2019Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Takashi HIRAYAMA, Mingyao XU
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Publication number: 20190195538Abstract: A pulse tube cryocooler is furnished with a second-stage cooling stage and an insert. The second-stage cooling stage has a lateral-surface opening, and a first heat-exchange surface extending in a sideways direction from the lateral-surface opening into the second-stage cooling stage. The insert includes a base-end portion fixedly fitted into the second-stage cooling stage to plug the lateral-surface opening, and a second heat-exchange surface that extends in the sideways direction from the base-end portion and is disposed inside the second-stage cooling stage, opposing the first heat-exchange surface. Between the first heat-exchange surface and the second heat-exchange surface the insert forms a clearance that flows a working gas, bringing both the first heat-exchange surface and the second heat-exchange surface into contact with the working gas.Type: ApplicationFiled: December 26, 2018Publication date: June 27, 2019Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Mingyao XU, Takashi HIRAYAMA
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Publication number: 20190080984Abstract: In a liquid-cooled type cooling device, fins are accommodated in the interior of a casing having a supply port and a discharge port, and electronic components that are associated with generation of heat are mounted on a top wall part of a first case unit of the casing. At end portions in a widthwise direction of the fins, cutouts are formed, which are cut out toward the side of a bottom wall part of a second case unit, in facing relation to the top wall part of the first case unit.Type: ApplicationFiled: September 12, 2018Publication date: March 14, 2019Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Naohisa Higashiyama, Takashi Hirayama
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Publication number: 20190080985Abstract: A liquid-cooled type cooling device includes first and second casings which are capable of being divided in a vertical direction. On a bottom wall part of the second casing, which faces toward fins that are accommodated therein, a plurality of slits are formed, which are recessed in a direction away from the fins. The slits extend in a straight line along a widthwise direction of the second casing substantially perpendicular to a direction in which a coolant medium flows, and are disposed in plurality while being separated at equal intervals along the flow direction.Type: ApplicationFiled: September 12, 2018Publication date: March 14, 2019Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Naohisa HIGASHIYAMA, Takashi HIRAYAMA
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Publication number: 20180245827Abstract: An evaporator includes a leeward upper header portion, a leeward lower header portion, a refrigerant inlet, leeward heat exchange tubes, a windward upper header portion, a windward lower header portion, a refrigerant outlet, windward heat exchange tubes, and a resistance divider. The resistance divider has at least one refrigerant passage hole and at least one communication path and is provided in the leeward upper header portion or the leeward lower header portion at a position corresponding to a first row of the leeward heat exchange tubes. The refrigerant inlet is in communication with the first row via the at least one refrigerant passage hole. The refrigerant inlet is in communication with the second row via the at least one communication path.Type: ApplicationFiled: April 26, 2018Publication date: August 30, 2018Applicant: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Osamu Kamoshida, Naohisa Higashiyama, Motoyuki Takagi, Takashi Hirayama
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Patent number: 10047984Abstract: A leeward tube row of an evaporator includes first to third tube groups, and a windward tube row thereof includes fourth and fifth tube groups. Within a third section of a leeward upper header portion with which heat exchange tubes of the third tube group communicate, a resistance member for flow division is provided so as to divide the interior of the third section into a first space which the heat exchange tubes face, and a second space which is separated from the first space and into which refrigerant flows. The resistance member for flow division has a plurality of refrigerant passage holes. The leeward upper header portion has a flow cutoff member for preventing flow of refrigerant into the first space of the third section. The third section of the leeward upper header portion communicates with the fourth section of the windward upper header portion via refrigerant communication passages.Type: GrantFiled: May 31, 2011Date of Patent: August 14, 2018Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Osamu Kamoshida, Naohisa Higashiyama, Motoyuki Takagi, Takashi Hirayama
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Patent number: 10006680Abstract: An evaporator with a cool storage function includes a plurality of refrigerant flow tubes. The flow tubes are spaced apart from one another in a thickness direction to form spaces among the plurality of refrigerant flow tubes. Outer fins are disposed in a first part of the spaces and are joined to the plurality of refrigerant flow tubes. The cool storage material container contains a cool storage material and is disposed in a second part of the spaces other than the first part. An inner fin is disposed within the cool storage material container and has crest portions extending along a longitudinal direction of the flow tubes, trough portions extending along the longitudinal direction, and connection portions connecting the crest portions and the trough portions.Type: GrantFiled: December 20, 2013Date of Patent: June 26, 2018Assignee: KEIHIN THERMAL TECHNOLOGY CORPORATIONInventors: Takashi Hirayama, Osamu Kamoshida