Patents by Inventor Makoto Ikemiya
Makoto Ikemiya 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: 11951437Abstract: In an inside air control system, a first pump supplies treatment target air to an adsorption vessel, and a second pump sucks gas from the adsorption vessel. In an adjustment operation of adjusting the composition of air in a storage, the inside air control system alternately performs a first action and a second action. When a stop condition for stopping the adjustment operation is satisfied, a controller performs stop control. In the stop control, the controller controls the second pump to suck the gas from the adsorption vessel to which the first pump supplies the treatment target air when the stop condition is satisfied, and controls the second pump to stop after the second pump has operated for a first time T1.Type: GrantFiled: October 19, 2023Date of Patent: April 9, 2024Assignee: Daikin Industries, Ltd.Inventors: Makoto Ikemiya, Kouji Yamamoto, Noritaka Kamei
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Publication number: 20240042372Abstract: In an inside air control system, a first pump supplies treatment target air to an adsorption vessel, and a second pump sucks gas from the adsorption vessel. In an adjustment operation of adjusting the composition of air in a storage, the inside air control system alternately performs a first action and a second action. When a stop condition for stopping the adjustment operation is satisfied, a controller performs stop control. In the stop control, the controller controls the second pump to suck the gas from the adsorption vessel to which the first pump supplies the treatment target air when the stop condition is satisfied, and controls the second pump to stop after the second pump has operated for a first time T1.Type: ApplicationFiled: October 19, 2023Publication date: February 8, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Makoto IKEMIYA, Kouji YAMAMOTO, Noritaka KAMEI
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Publication number: 20230192395Abstract: An air composition adjustment device is provided with a cover unit including a cover that covers around a gas sensor, an inflow path that takes air into the cover, and an outflow path that causes air to flow out from the cover.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Applicant: DAIKIN INDUSTRIES,LTD.Inventor: Makoto IKEMIYA
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Patent number: 11668509Abstract: Left and right edge portions of an external casing of a container refrigeration apparatus each include a column member that is continuous from the upper end to the lower end of a casing. Left and right edge portions of an internal casing each include a side plate that is continuous from the upper end to the lower end of the casing. The column members of the external casing and the associated side plates of the internal casing are fixed together, thereby increasing the strength of the casing including the external casing and the internal casing.Type: GrantFiled: March 4, 2022Date of Patent: June 6, 2023Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yuuya Hirama, Makoto Ikemiya, Kazuyasu Matsui
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Patent number: 11647761Abstract: A space which is present between an air intake surface (90a) provided with an air intake port and an air filter (76) is regarded as a primary space (P) through which air flows into the air filter (76), and a plurality of spaces, each of which is present between one of other surfaces of the air filter (76) and a filter box (90), are regarded as secondary spaces (Q) into each of which the air flows out from the air filter (76), so that the air is taken out from side surfaces and an upper surface of a filter unit (75). This configuration reduces the increase in size of the filter unit (75) of a gas supply device (30) even if a dust holding capacity of the filter is made larger than before.Type: GrantFiled: July 20, 2018Date of Patent: May 16, 2023Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Hirotaka Tagawa, Kazuyasu Matsui, Makoto Ikemiya
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Publication number: 20230118612Abstract: In an air composition adjustment device configured to adjust composition of air in a target space, an air circuit configured to supply air having adjusted composition to the target space is provided with a first passage through which outside air is introduced into an adjuster, and a second passage which is branched from the first passage and through which outside air is introduced into the sensor, and the second passage is provided with a moisture removal portion configured to remove moisture in air introduced into the sensor. This reduces a risk of a failure of the sensor due to contact of the sensor with moisture passed through the passage introducing outside air into the sensor.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventor: Makoto IKEMIYA
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Publication number: 20220412646Abstract: A guide member extends from an opening of a casing toward an internal space. The guide member guides the temperature sensor to the internal space. The detector and the lead wire of the temperature sensor are held by the guide member.Type: ApplicationFiled: August 30, 2022Publication date: December 29, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Makoto IKEMIYA, Kouji YAMAMOTO
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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: 20220187003Abstract: Left and right edge portions of an external casing of a container refrigeration apparatus each include a column member that is continuous from the upper end to the lower end of a casing. Left and right edge portions of an internal casing each include a side plate that is continuous from the upper end to the lower end of the casing. The column members of the external casing and the associated side plates of the internal casing are fixed together, thereby increasing the strength of the casing including the external casing and the internal casing.Type: ApplicationFiled: March 4, 2022Publication date: June 16, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yuuya HIRAMA, Makoto IKEMIYA, Kazuyasu MATSUI
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Publication number: 20220120476Abstract: An inside air-conditioning device includes a refrigerant circuit (50) and a refrigerant that is sealed in the refrigerant circuit (50). The refrigerant circuit (50) includes a compressor (10), a condenser (25), an electronic expansion valve (13), and an evaporator (17). The refrigerant contains at least 1,2-difluoroethylene.Type: ApplicationFiled: January 28, 2020Publication date: April 21, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Makoto IKEMIYA, Shinichi FUJINAKA, Masaru TANAKA, Shun OHKUBO, Yuuki YOTSUMOTO, Mitsushi ITANO, Akihito MIZUNO, Tomoyuki GOTOU, Yasufu YAMADA
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Patent number: 11137191Abstract: In a gas supply device that supplies gas to a target space through a filter unit, the filter unit is composed of a filter box and an air filter housed in the filter box, and the air filter is a filter having a filter substrate made of a membrane filter and a fibrous coating layer covering a surface of the filter substrate through which air is sucked.Type: GrantFiled: July 20, 2018Date of Patent: October 5, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Hirotaka Tagawa, Kazuyasu Matsui, Makoto Ikemiya
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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: 11051525Abstract: A gas supply device is provided with a heating unit that heats gas flowing into a filter provided in a filter unit.Type: GrantFiled: September 19, 2018Date of Patent: July 6, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Hirotaka Tagawa, Makoto Ikemiya
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Publication number: 20200260749Abstract: A gas supply device is provided with a heating unit that heats gas flowing into a filter provided in a filter unit.Type: ApplicationFiled: September 19, 2018Publication date: August 20, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hirotaka TAGAWA, Makoto IKEMIYA
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Publication number: 20200229454Abstract: A space which is present between an air intake surface (90a) provided with an air intake port and an air filter (76) is regarded as a primary space (P) through which air flows into the air filter (76), and a plurality of spaces, each of which is present between one of other surfaces of the air filter (76) and a filter box (90), are regarded as secondary spaces (Q) into each of which the air flows out from the air filter (76), so that the air is taken out from side surfaces and an upper surface of a filter unit (75). This configuration reduces the increase in size of the filter unit (75) of a gas supply device (30) even if a dust holding capacity of the filter is made larger than before.Type: ApplicationFiled: July 20, 2018Publication date: July 23, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hirotaka TAGAWA, Kazuyasu MATSUI, Makoto IKEMIYA
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Publication number: 20200132355Abstract: In a gas supply device that supplies gas to a target space through a filter unit, the filter unit is composed of a filter box and an air filter housed in the filter box, and the air filter is a filter having a filter substrate made of a membrane filter and a fibrous coating layer covering a surface of the filter substrate through which air is sucked.Type: ApplicationFiled: July 20, 2018Publication date: April 30, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hirotaka TAGAWA, Kazuyasu MATSUI, Makoto IKEMIYA
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Patent number: 10617127Abstract: A gas supply device supplies an internal space of a container with nitrogen-enriched air to reduce an oxygen concentration of the internal space. If the oxygen concentration of the internal space gradually falls to reach a reference concentration C2, the gas supply device stops. If outside air enters the internal space at a gap between the container and a container refrigeration apparatus, the oxygen concentration of the internal space rises after the stop of the gas supply device. If the oxygen concentration of the internal space rises to reach an upper limit concentration C3, an internal fan controller switches a rotational speed of an internal fan from “HIGH” to “LOW.” The gas supply device is activated. As a result, the amount of the outside air entering the internal space can be reduced to reliably drop the oxygen concentration of the internal space.Type: GrantFiled: August 24, 2016Date of Patent: April 14, 2020Assignee: Daikin Industries, Ltd.Inventors: Noritaka Kamei, Yuusuke Fujimoto, Makoto Ikemiya
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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: 10345014Abstract: Disclosed herein a technique for producing a gas mixture for controlling an oxygen concentration in the interior of a container while reducing the overall weight of the apparatus. For this purpose, a gas mixture supply device is provided for a container refrigeration apparatus. The gas mixture supply device is provided with adsorption columns. If one of the first and second adsorption columns is supplied with air, the adsorption columns are pressurized, and nitrogen in the air is adsorbed onto an adsorbent. If air is sucked from the other of the first and second adsorption columns, the adsorption columns are depressurized, and nitrogen adsorbed onto the adsorbent is desorbed. A gas mixture including the nitrogen desorbed from the adsorbent is supplied to the interior of a container.Type: GrantFiled: September 16, 2014Date of Patent: July 9, 2019Assignee: Daikin Industries, Ltd.Inventors: Naohiro Tanaka, Atsushi Ozato, Makoto Ikemiya, Tetsuya Ukon, Noritaka Kamei, Kazuma Yokohara