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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Publication number: 20180252461Abstract: 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: ApplicationFiled: August 24, 2016Publication date: September 6, 2018Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Noritaka KAMEI, Yuusuke FUJIMOTO, Makoto IKEMIYA
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Patent number: 10034484Abstract: An oxygen concentration in the interior of a container is detected by an oxygen concentration detection sensor. If the oxygen concentration detected by the oxygen concentration detection sensor is higher than that of a gas mixture, the container is supplied with the gas mixture having an oxygen concentration lower than that of the outside air and higher than a target concentration. The oxygen concentration in the interior of the container is reduced to the vicinity of the oxygen concentration of the gas mixture by supplying the interior of the container with the gas mixture, and then is further reduced to the target concentration by respiration of plants. This appropriately controls the oxygen concentration in the interior of the container, and reduces a decrease in the degree of freshness of the plants.Type: GrantFiled: October 3, 2014Date of Patent: July 31, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Naohiro Tanaka, Atsushi Ozato, Makoto Ikemiya, Tetsuya Ukon
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Publication number: 20170219270Abstract: A refrigeration facility such as a refrigeration container includes a refrigeration device cooling an interior of the refrigeration facility and including an evaporator allowing air inside the refrigeration facility to pass through. A condensate port serving as a corrosive gas detector is installed in a drain hose. The drain hose disposes condensate water from a drain pan, which collects condensate water generated by the evaporator. Detecting corrosive gas in the air inside the container by using a pH sensor to examine a pH value of condensate water in the drain port allows for reducing the risk of corrosion of components installed inside the container.Type: ApplicationFiled: June 23, 2015Publication date: August 3, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kazuma YOKOHARA, Kazuhide MIZUTANI, Makoto IKEMIYA, Noritaka KAMEI, Naohiro TANAKA
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Patent number: 9683772Abstract: A refrigeration apparatus controller calculates a refrigeration load of a refrigeration apparatus, and a load signal (S) containing load information indicating a magnitude of the refrigeration load is output from a communication device to an engine controller. The engine controller controls a speed of rotation of a generator engine based on the load signal (S).Type: GrantFiled: September 16, 2010Date of Patent: June 20, 2017Assignee: Daikin Industries, Ltd.Inventors: Makoto Ikemiya, Kazuma Yokohara, Hisaaki Takaoka, Masaaki Takegami
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Publication number: 20160245555Abstract: 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: ApplicationFiled: September 16, 2014Publication date: August 25, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Naohiro TANAKA, Atsushi OZATO, Makoto IKEMIYA, Tetsuya UKON, Noritaka KAMEI, Kazuma YOKOHARA
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Publication number: 20160227802Abstract: An oxygen concentration in the interior of a container is detected by an oxygen concentration detection sensor. If the oxygen concentration detected by the oxygen concentration detection sensor is higher than that of a gas mixture, the container is supplied with the gas mixture having an oxygen concentration lower than that of the outside air and higher than a target concentration. The oxygen concentration in the interior of the container is reduced to the vicinity of the oxygen concentration of the gas mixture by supplying the interior of the container with the gas mixture, and then is further reduced to the target concentration by respiration of plants. This appropriately controls the oxygen concentration in the interior of the container, and reduces a decrease in the degree of freshness of the plants.Type: ApplicationFiled: October 3, 2014Publication date: August 11, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Naohiro TANAKA, Atsushi OZATO, Makoto IKEMIYA, Tetsuya UKON
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Patent number: 9358917Abstract: A refrigeration system for trailer includes an engine, a generator driven by the engine to generate electric power, an inverter substrate, a temperature sensor that senses a temperature of the inverter circuit, and a heat carrying mechanism that heats the inverter substrate with waste heat of the engine when a sensed temperature by the temperature sensor is an operational temperature or lower.Type: GrantFiled: June 7, 2010Date of Patent: June 7, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Makoto Ikemiya, Hisaaki Takaoka
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Patent number: 9322585Abstract: A refrigerating apparatus includes a casing body attached to an opening formed at one end of a box-shaped cooling compartment so as to close the opening, a refrigeration cycle unit including a compressor and a radiator provided on an outer side of the cooling compartment relative to the casing body and an evaporator provided on an inner side of the cooling compartment relative to the casing body, a diagnosis process executer configured to control the refrigeration cycle unit to execute a diagnosis process for diagnosing a performance of the cooling compartment, and a performance determinator configured to determine the performance of the cooling compartment in the diagnosis process.Type: GrantFiled: June 27, 2011Date of Patent: April 26, 2016Assignee: Daikin Industries, Ltd.Inventors: Makoto Ikemiya, Masaaki Takegami
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Patent number: 9285158Abstract: In an attachment portion where a side edge portion of an opening of a trailer and a casing are connected together, a vertically-extending groove is formed in one of the trailer or the casing and a vertically-extending raised portion is formed in the other one of the trailer or the casing so as to be fitted into the groove.Type: GrantFiled: June 4, 2010Date of Patent: March 15, 2016Assignee: Daikin Industries, Ltd.Inventors: Makoto Ikemiya, Kazuyasu Matsui
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Patent number: 9132765Abstract: A casing includes an engine support which is fixed to a main body of the casing and on which an engine generator is mounted. The engine support is drawable from the main body of the casing in a forward direction relative to the front side of the trailer.Type: GrantFiled: June 4, 2010Date of Patent: September 15, 2015Assignee: Daikin Industries, Ltd.Inventor: Makoto Ikemiya
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Patent number: 9134058Abstract: A refrigerant circuit is configured, which includes an electric compressor, a condenser, an expansion mechanism, an evaporator, a hot gas introduction path connecting the electric compressor and the evaporator together, and a switching valve for controlling a flow of refrigerant in the hot gas introduction path. In addition, a fan is provided. In a defrosting cycle for introducing refrigerant into the evaporator through the hot gas introduction path to defrost the evaporator, if the pressure of the condenser is equal to or lower than a predetermined threshold, the fan forms an air flow from a radiator to the condenser.Type: GrantFiled: June 3, 2010Date of Patent: September 15, 2015Assignee: DAIKEN INDUSTRIES, LTD.Inventors: Makoto Ikemiya, Hisaaki Takaoka, Shigeto Tanaka
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Publication number: 20140373559Abstract: A method for detecting whether a different refrigerant has been charged into a refrigeration apparatus including a refrigerant circuit includes: a charging step of charging a refrigerant into the refrigerant circuit; a characteristics determination step of determining whether saturation temperature characteristics of the refrigerant charged in the charging step are identical to saturation temperature characteristics of a previously determined normal refrigerant, the saturation temperature characteristics of the refrigerant being derived from a pressure and a temperature of the refrigerant; and an alerting step of, when, in the characteristics determination step, a determination is made that the saturation temperature characteristics of the charged refrigerant are different from those of the normal refrigerant, issuing an alarm indicating that the charged refrigerant is different from the normal refrigerant.Type: ApplicationFiled: December 25, 2012Publication date: December 25, 2014Inventors: Makoto Ikemiya, Hisaaki Takaoka, Kazuhide Mizutani, Akitoshi Ueno
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Publication number: 20130118195Abstract: A refrigerating apparatus includes a casing body attached to an opening formed at one end of a box-shaped cooling compartment so as to close the opening, a refrigeration cycle unit including a compressor and a radiator provided on an outer side of the cooling compartment relative to the casing body and an evaporator provided on an inner side of the cooling compartment relative to the casing body, a diagnosis process executer configured to control the refrigeration cycle unit to execute a diagnosis process for diagnosing a performance of the cooling compartment, and a performance determinator configured to determine the performance of the cooling compartment in the diagnosis process.Type: ApplicationFiled: June 27, 2011Publication date: May 16, 2013Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Makoto Ikemiya, Masaaki Takegami
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Patent number: 8418867Abstract: Disclosed is a casing structure by which stiffness of a casing of a container refrigeration unit for cooling the interior of a container can be increased without affecting the arrangement, shape, and maintainability of devices accommodated in the casing. A container interior side of the external casing (12) which constitutes the casing (11) is provided with flanges (34) which extend vertically and which are located at both end portions of the external casing (12) along a dimension of the container width. Each of the flanges (34) has a rectangular cylindrical portion (34a) extending vertically along the external casing (12).Type: GrantFiled: July 7, 2008Date of Patent: April 16, 2013Assignee: Daikin Industries, Ltd.Inventors: Makoto Ikemiya, Takayuki Uo, Keiji Tomioka, Shouzou Kameyama
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Patent number: 8366222Abstract: A container refrigeration unit mounted on a container body (1a) includes a casing body (11) partitioning the container into the internal side and the external side thereof. A protruding portion (12) protruding toward the internal side is formed in a lower portion of the casing body (11), and the side stays (50) each extending vertically are mounted on both sides of the rear surface of the protruding portion (12). On the contrary, evaporator frames (40) each located above the protruding portion (12) and extending from the casing body (11) to a top end of the side stay (50) are mounted on both sides of an upper portion of a rear surface in the casing body (11). The bottom tip of the side frame (40) and the top end of the side stay (50) are fixed by a bolt.Type: GrantFiled: August 7, 2008Date of Patent: February 5, 2013Assignee: Daikin Industries, Ltd.Inventors: Makoto Ikemiya, Takayuki Uo
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Publication number: 20120167605Abstract: A refrigeration apparatus controller calculates a refrigeration load of a refrigeration apparatus, and a load signal (S) containing load information indicating a magnitude of the refrigeration load is output from a communication device to an engine controller. The engine controller controls a speed of rotation of a generator engine based on the load signal (S).Type: ApplicationFiled: September 16, 2010Publication date: July 5, 2012Inventors: Makoto Ikemiya, Kazuma Yokohara, Hisaaki Takaoka, Masaaki Takegami
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Publication number: 20120090342Abstract: A casing includes an engine support which is fixed to a main body of the casing and on which an engine generator is mounted. The engine support is drawable from the main body of the casing in a forward direction relative to the front side of the trailer.Type: ApplicationFiled: June 4, 2010Publication date: April 19, 2012Inventor: Makoto Ikemiya
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Publication number: 20120085117Abstract: A refrigerant circuit is configured, which includes an electric compressor, a condenser, an expansion mechanism, an evaporator, a hot gas introduction path connecting the electric compressor and the evaporator together, and a switching valve for controlling a flow of refrigerant in the hot gas introduction path. In addition, a fan is provided. In a defrosting cycle for introducing refrigerant into the evaporator through the hot gas introduction path to defrost the evaporator, if the pressure of the condenser is equal to or lower than a predetermined threshold, the fan forms an air flow from a radiator to the condenser.Type: ApplicationFiled: June 3, 2010Publication date: April 12, 2012Inventors: Makoto Ikemiya, Hisaaki Takaoka, Shigeto Tanaka
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Publication number: 20120080162Abstract: In an attachment portion where a side edge portion of an opening of a trailer and a casing are connected together, a vertically-extending groove is formed in one of the trailer or the casing and a vertically-extending raised portion is formed in the other one of the trailer or the casing so as to be fitted into the groove.Type: ApplicationFiled: June 4, 2010Publication date: April 5, 2012Inventors: Makoto Ikemiya, Kazuyasu Matsui
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Publication number: 20120079843Abstract: A refrigeration system for trailer includes an engine, a generator driven by the engine to generate electric power, an inverter substrate, a temperature sensor that senses a temperature of the inverter circuit, and a heat carrying mechanism that heats the inverter substrate with waste heat of the engine when a sensed temperature by the temperature sensor is an operational temperature or lower.Type: ApplicationFiled: June 7, 2010Publication date: April 5, 2012Inventors: Makoto Ikemiya, Hisaaki Takaoka