Patents by Inventor Norio IGA
Norio IGA 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: 11421925Abstract: A container refrigeration apparatus includes a refrigeration cycle unit having a refrigerant circuit, and a controller configured to control an action of the refrigeration cycle unit to adjust a temperature of inside air in a container to a desired temperature. The controller is configured to include an impact determination section configured to determine whether or not a strong impact acted on the container, and an abnormality diagnosis section configured to perform an abnormality diagnosis to diagnose whether or not at least one of the container or the container refrigeration apparatus has an abnormality when the impact determination section determines that a strong impact acted on the container.Type: GrantFiled: June 7, 2021Date of Patent: August 23, 2022Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yoshikazu Uehara, Kazuhide Mizutani, Makoto Ikemiya, Norio Iga
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Publication number: 20210293460Abstract: A container refrigeration apparatus includes a refrigeration cycle unit having a refrigerant circuit, and a controller configured to control an action of the refrigeration cycle unit to adjust a temperature of inside air in a container to a desired temperature. The controller is configured to include an impact determination section configured to determine whether or not a strong impact acted on the container, and an abnormality diagnosis section configured to perform an abnormality diagnosis to diagnose whether or not at least one of the container or the container refrigeration apparatus has an abnormality when the impact determination section determines that a strong impact acted on the container.Type: ApplicationFiled: June 7, 2021Publication date: September 23, 2021Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshikazu UEHARA, Kazuhide MIZUTANI, Makoto IKEMIYA, Norio IGA
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Patent number: 11098937Abstract: To facilitate replacement or repair of a sensor for refrigerant leakage detection used for a refrigerator for a storage box such as a container in case of breakdown, a sensor for refrigerant leakage detection is disposed outside of an internal space of a storage box, and an internal air guide passage is provided which guides internal air from a discharge side of a fan provided in the internal space of the storage box to the sensor for refrigerant leakage detection.Type: GrantFiled: February 9, 2018Date of Patent: August 24, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yoshikazu Uehara, Kazuhide Mizutani, Norio Iga, Makoto Ikemiya
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Patent number: 10480846Abstract: A failure determiner is provided to perform a failure diagnosis to successively evaluate functions of the refrigerant circuit and components forming the refrigerant circuit for a plurality of evaluation items. If the failure diagnosis is interrupted, the failure determiner has a restarting function to restart the failure diagnosis from an intermediate point of the failure diagnosis.Type: GrantFiled: November 27, 2015Date of Patent: November 19, 2019Assignee: Daikin Industries, Ltd.Inventors: Yuusuke Fujimoto, Naoki Nakatani, Hisaaki Takaoka, Norio Iga
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Publication number: 20190331378Abstract: To facilitate replacement or repair of a sensor for refrigerant leakage detection used for a refrigerator for a storage box such as a container in case of breakdown, a sensor for refrigerant leakage detection is disposed outside of an internal space of a storage box, and an internal air guide passage is provided which guides internal air from a discharge side of a fan provided in the internal space of the storage box to the sensor for refrigerant leakage detection.Type: ApplicationFiled: February 9, 2018Publication date: October 31, 2019Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yoshikazu Uehara, Kazuhide Mizutani, Norio Iga, Makoto Ikemiya
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Patent number: 10215481Abstract: A refrigeration device includes a blow-out temperature detector that detects the blow-out temperature of air blown out into the interior of the device, a cargo temperature detector that detects the temperature of a cargo, an operation controller that performs cooling control of the interior on the basis of the detection temperature from the blow-out temperature detector and the detection temperature from the cargo temperature detector, a storage unit that stores a first set temperature as a control target value for the blow-out temperature and a cargo target temperature as a target value for the temperature of the cargo, and a time measurement unit that measures a treatment time elapsed for low-temperature treatment of the cargo. The operation controller is configured to control the refrigerant circuit so that the blow-out temperature approaches the first set temperature.Type: GrantFiled: June 16, 2015Date of Patent: February 26, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Kiichirou Satou, Yuusuke Fujimoto, Kenji Takata, Norio Iga
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Patent number: 9829242Abstract: A refrigeration device executes a chilling operation for cooling an interior so that the temperature of the interior reaches a set temperature that is set within a predetermined temperature range. The refrigeration device has an operation control unit that, in the chilling operation, switches between pull-down control and capacity control for cooling the interior with a cooling capacity lower than that of the pull-down control. The operation control unit performs the pull-down control until the temperature of air blown toward the interior reaches at least the set temperature.Type: GrantFiled: December 27, 2013Date of Patent: November 28, 2017Assignee: Daikin Industries, Ltd.Inventors: Kiichirou Satou, Hisaaki Takaoka, Yuusuke Fujimoto, Hideaki Kuriyama, Norio Iga
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Publication number: 20170328625Abstract: A failure determiner is provided to perform a failure diagnosis to successively evaluate functions of the refrigerant circuit and components forming the refrigerant circuit for a plurality of evaluation items. If the failure diagnosis is interrupted, the failure determiner has a restarting function to restart the failure diagnosis from an intermediate point of the failure diagnosis.Type: ApplicationFiled: November 27, 2015Publication date: November 16, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yuusuke FUJIMOTO, Naoki NAKATANI, Hisaaki TAKAOKA, Norio IGA
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Publication number: 20170138662Abstract: A refrigeration device includes a blow-out temperature detector that detects the blow-out temperature of air blown out into the interior of the device, a cargo temperature detector that detects the temperature of a cargo, an operation controller that performs cooling control of the interior on the basis of the detection temperature from the blow-out temperature detector and the detection temperature from the cargo temperature detector, a storage unit that stores a first set temperature as a control target value for the blow-out temperature and a cargo target temperature as a target value for the temperature of the cargo, and a time measurement unit that measures a treatment time elapsed for low-temperature treatment of the cargo. The operation controller is configured to control the refrigerant circuit so that the blow-out temperature approaches the first set temperature.Type: ApplicationFiled: June 16, 2015Publication date: May 18, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kiichirou SATOU, Yuusuke FUJIMOTO, Kenji TAKATA, Norio IGA
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Publication number: 20150330703Abstract: A refrigeration device executes a chilling operation for cooling an interior so that the temperature of the interior reaches a set temperature that is set within a predetermined temperature range. The refrigeration device has an operation control unit that, in the chilling operation, switches between pull-down control and capacity control for cooling the interior with a cooling capacity lower than that of the pull-down control. The operation control unit performs the pull-down control until the temperature of air blown toward the interior reaches at least the set temperature.Type: ApplicationFiled: December 27, 2013Publication date: November 19, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kiichirou SATOU, Hisaaki TAKAOKA, Yuusuke FUJIMOTO, Hideaki KURIYAMA, Norio IGA