Patents by Inventor Noritaka KAMEI

Noritaka KAMEI 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).

  • Publication number: 20210127693
    Abstract: In a configuration in which a CA system adjusts the composition of air in an internal space of a storeroom, a concentration sensor, such as an oxygen sensor or a carbon dioxide sensor, is disposed outside the storeroom, and a concentration detection air passage is provided between the internal space and the concentration sensor.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 6, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Chiharu TOMITA, Noritaka KAMEI, Shougo MABUCHI
  • Patent number: 10945380
    Abstract: A CA system includes a gas supply device which performs a gas supply operation of supplying nitrogen-enriched air into a container, and a controller which performs the gas supply operation so that the inside air has a desired composition. The controller performs carbon dioxide priority control in which the controller performs the gas supply operation if an oxygen concentration of the inside air is equal to or higher than a ceiling concentration higher than a target oxygen concentration, stops the gas supply operation if a carbon dioxide concentration of the inside air is lowered to a critical concentration lower than a target carbon dioxide concentration, and restarts the gas supply operation if the carbon dioxide concentration of the inside air has reached a restart concentration higher than the target carbon dioxide concentration through breathing of the plants.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: March 16, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Maho Takayama, Noritaka Kamei, Yuusuke Fujimoto, Masataka Nakano
  • Publication number: 20210033295
    Abstract: A humidifier cools air in an air path that supplies the air to an internal space of a storage chamber such as a container or a warehouse, extracts water in a water extracting unit, stores the extracted water in a humidifying unit, and humidifies the internal space. The air path includes a main path that communicates with the internal space and a discharge path that discharges a part or all of water-extraction air to the outside of the target space, so that the humidifier can sufficiently humidify the internal space without receiving supply of water.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Naohiro TANAKA, Hidenori MATSUI
  • Publication number: 20200390116
    Abstract: While an inside air control system is performing an air composition maintenance action, a controller instructs a gas supply device to operate while switching among a first supply operation, a second supply operation, an outside air supply operation, and a standby operation. In the first supply operation, first low oxygen concentration air is supplied into a container. In the second supply operation, second low oxygen concentration air having a lower oxygen concentration than the first low oxygen concentration air is supplied into the container. In the outside air supply operation, outside air is supplied into the container. In the standby operation, supply of the low oxygen concentration air and the outside air into the container is stopped.
    Type: Application
    Filed: August 26, 2020
    Publication date: December 17, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuusuke FUJIMOTO, Noritaka KAMEI
  • Publication number: 20200383342
    Abstract: An inside air control apparatus includes: a gas supply device that performs a gas supply operation for supplying low oxygen concentration air into a container; and a controller that controls an operation of the gas supply device so that the inside air has desired composition. The controller is configured to be able to execute, if an oxygen concentration of the inside air is higher than a target oxygen concentration, a carbon dioxide concentration controlling operation for controlling composition of the inside air to be desired composition by causing the gas supply device to perform the gas supply operation, while allowing the gas supply device to change the amount of gas supply such that the carbon dioxide concentration of the inside air falls within a predetermined reference concentration range.
    Type: Application
    Filed: August 25, 2020
    Publication date: December 10, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuusuke FUJIMOTO, Noritaka KAMEI
  • Publication number: 20200282356
    Abstract: An internal air adjustment device that includes a gas composition adjustment unit including a gas separation film and that adjusts a composition of internal air existing inside a storage box, such as a container, includes a pressure regulating valve that regulates a pressure of air that is supplied from an air pump to the gas separation film of the gas composition adjustment unit.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 10, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Naohiro TANAKA, Hidenori MATSUI
  • Publication number: 20200253227
    Abstract: An internal air adjustment device that includes a first composition adjustment unit and a second composition adjustment unit. The first composition adjustment unit separates supply air from external air, the supply air having a composition that differs from a composition of the external air, and supplies the supply air into a transport container. The second composition adjustment unit separates discharge air from internal air, the discharge air having a composition that differs from a composition of the internal air, and discharges the discharge air to outside of the transport container. The internal air adjustment device is capable of properly controlling the composition of the internal air in the transport container.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 13, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Naohiro TANAKA, Hidenori MATSUI
  • Publication number: 20200253226
    Abstract: An air composition adjusting device includes: a carbon dioxide separator that separates carbon dioxide from air-to-be-treated to be supplied to a target space; a gas supply path including a high concentration gas supply path through which the carbon dioxide separator communicates with the target space; and a controller that performs a carbon dioxide concentration raising operation of supplying a high carbon dioxide concentration gas, which has a higher carbon dioxide concentration than air-to-be-treated before being treated, to the target space through the high concentration gas supply path.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 13, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Naohiro TANAKA, Hidenori MATSUI
  • Publication number: 20200254384
    Abstract: An air composition adjusting device includes: an oxygen separator that separates oxygen from external air to be supplied to a target space; a gas supply path including a high concentration gas supply path for oxygen through which the oxygen separator communicates with the target space; and a controller that performs an oxygen concentration raising operation of supplying a high oxygen concentration gas, which has a higher oxygen concentration than external air before being treated by the oxygen separator, to the target space through the high concentration gas supply path for oxygen.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 13, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Naohiro TANAKA, Hidenori MATSUI
  • Patent number: 10617127
    Abstract: 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: Grant
    Filed: August 24, 2016
    Date of Patent: April 14, 2020
    Assignee: Daikin Industries, Ltd.
    Inventors: Noritaka Kamei, Yuusuke Fujimoto, Makoto Ikemiya
  • Patent number: 10499660
    Abstract: A container refrigeration apparatus includes a CA system which controls the composition of the air in the container. The CA system includes a gas supply device which supplies nitrogen-enriched air, an intake duct which guides outside air to a first space on a suction side of an interior fan, and an exhaust duct which guides air in a second space on the blowout side of the interior fan out of a container. The exhaust duct has an inlet at a location where the flow of the air blown from the interior fan is blocked by a fan housing.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: December 10, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka Kamei, Kazuma Yokohara, Naohiro Tanaka, Atsushi Ozato
  • Patent number: 10345014
    Abstract: 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: Grant
    Filed: September 16, 2014
    Date of Patent: July 9, 2019
    Assignee: Daikin Industries, Ltd.
    Inventors: Naohiro Tanaka, Atsushi Ozato, Makoto Ikemiya, Tetsuya Ukon, Noritaka Kamei, Kazuma Yokohara
  • Patent number: 10295243
    Abstract: A gas supply device is configured such that its supply state is switchable between a first supply state supplying, as supply air, nitrogen-enriched air produced from outside air into a containe, and a second supply state in which the gas supply device takes outside air therein and supplies, as supply air, the outside air into the container. A CA system is provided with a branch pipe which guides at least part of the supply air flowing through a supply passage to an oxygen sensor, and an open/close valve which opens/closes the branch pipe. An outside air calibration operation is performed in which the open/close valve is opened in the second supply state to guide the least part of the outside air flowing through the supply passage to the oxygen sensor, thereby calibrating the oxygen sensor using the outside air.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: May 21, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuma Yokohara, Masataka Nakano, Noritaka Kamei, Naohiro Tanaka, Atsushi Ozato, Yuusuke Fujimoto
  • Publication number: 20190141903
    Abstract: A CA system includes a gas supply device which performs a gas supply operation of supplying nitrogen-enriched air into a container, and a controller which performs the gas supply operation so that the inside air has a desired composition. The controller performs carbon dioxide priority control in which the controller performs the gas supply operation if an oxygen concentration of the inside air is equal to or higher than a ceiling concentration higher than a target oxygen concentration, stops the gas supply operation if a carbon dioxide concentration of the inside air is lowered to a critical concentration lower than a target carbon dioxide concentration, and restarts the gas supply operation if the carbon dioxide concentration of the inside air has reached a restart concentration higher than the target carbon dioxide concentration through breathing of the plants.
    Type: Application
    Filed: April 13, 2017
    Publication date: May 16, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Maho TAKAYAMA, Noritaka KAMEI, Yuusuke FUJIMOTO, Masataka NAKANO
  • Patent number: 10168092
    Abstract: Disclosed herein is a container refrigeration apparatus (10) for cooling air in a container (11). The container refrigeration apparatus (10) includes: a gas supply device (30) which produces nitrogen-enriched air having a higher nitrogen concentration than outside air and supplies the nitrogen-enriched air into the container (11) via a supply passage (44); an oxygen concentration sensor (51) which measures an oxygen concentration of the air in the container (11); and a controller which controls the operation of the gas supply device (30) so that the oxygen concentration measured by the oxygen concentration sensor (51) reaches a target concentration. The container refrigeration apparatus (10) is provided with a measurement passage (88) which guides part of the nitrogen-enriched air passing through the supply passage (44) to the oxygen concentration sensor (51), and an on-off valve (82) is provided for the measurement passage (88).
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: January 1, 2019
    Assignee: Daikin Industries, Ltd.
    Inventors: Naohiro Tanaka, Noritaka Kamei
  • Patent number: 10136657
    Abstract: Disclosed is a container refrigeration apparatus including a unit case of an inside air control system disposed outside a container, the unit case housing an air pump therein. The container refrigeration apparatus is provided with an air inlet unit independent of the unit case. The air inlet unit and the air pump are connected together by a tube. The air inlet unit is provided with a membrane filter, and is disposed above the unit case. Malfunctions of electrical components and corrosion on metallic components due to moisture permeation into the unit case are reduced.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: November 27, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka Kamei, Kazuhide Mizutani
  • Patent number: 10098366
    Abstract: Disclosed herein is a CA system which allows first and second adsorption columns to alternately perform an adsorption operation and a desorption operation so that nitrogen-enriched air having a higher nitrogen concentration and a lower oxygen concentration than the air is produced and supplied into the container. The CA system executes a second operation mode in which the nitrogen-enriched air produced for a predetermined time since the desorption operation was started is discharged to the outside of the container, and the nitrogen-enriched air produced until the end of the desorption operation since the predetermined time passed is supplied into the container.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: October 16, 2018
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka Kamei, Kouji Yamamoto, Kazuhide Mizutani
  • Publication number: 20180252461
    Abstract: 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: Application
    Filed: August 24, 2016
    Publication date: September 6, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Yuusuke FUJIMOTO, Makoto IKEMIYA
  • Publication number: 20180245835
    Abstract: A container refrigeration apparatus includes: a casing which forms an external storage space communicating with the exterior of the container and an internal storage space communicating with the interior of the container; a refrigerant circuit; an external fan; an internal fan; and an inside air control system including an exhaust passage which allows a space on a blowout side of the internal fan in the internal storage space to communicate with the external storage space, and controls composition of the inside air in the container. An external end of the exhaust passage is open on a suction side of the external fan in the external storage space.
    Type: Application
    Filed: February 25, 2016
    Publication date: August 30, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Atsushi OZATO, Wataru HIRATA
  • Publication number: 20180235247
    Abstract: Disclosed herein is a CA system which allows first and second adsorption columns to alternately perform an adsorption operation and a desorption operation so that nitrogen-enriched air having a higher nitrogen concentration and a lower oxygen concentration than the air is produced and supplied into the container. The CA system executes a second operation mode in which the nitrogen-enriched air produced for a predetermined time since the desorption operation was started is discharged to the outside of the container, and the nitrogen-enriched air produced until the end of the desorption operation since the predetermined time passed is supplied into the container.
    Type: Application
    Filed: August 24, 2016
    Publication date: August 23, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Noritaka KAMEI, Kouji YAMAMOTO, Kazuhide MIZUTANI