Patents by Inventor Sachiko Yamaguchi
Sachiko Yamaguchi 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: 10189724Abstract: A water treatment vessel (10) causes electric discharge in water stored therein to produce a sterilizing factor. The water treatment vessel (10) moves in accordance with the level of water in a reservoir (30) to be switched between a discharging state where the water treatment vessel (10) and the reservoir (30) have no communication, and a pair of electrodes (16, 17) are immersed in water in the water treatment vessel (10) to cause the electric discharge, and a draining state where the pair of electrodes (16, 17) come out of water in the water treatment vessel (10) to stop the electric discharge, and water flows out of the water treatment vessel (10) into the reservoir (30). The water supplier (20) supplies water to the water treatment vessel (10) in the draining state, and stop the supply of water to the water treatment vessel (10) in the discharging state.Type: GrantFiled: December 24, 2015Date of Patent: January 29, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tsunahiro Ohdou, Masaya Nishimura, Tomoki Saitou, Sachiko Yamaguchi
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Patent number: 10087091Abstract: In a submerged discharge device, a pair of electrodes is arranged in a liquid in a reservoir to receive an alternating voltage from an alternating power source, thereby generating a submerged discharge using a discharger arranged in the liquid between the pair of electrodes. A surface of this pair of electrodes has a coating that ensures the submerged discharge generated by the discharger. This may reduce the area of contact between the surface of the pair of electrodes and the liquid in the treatment vessel to reduce the consumption of the pair of electrodes.Type: GrantFiled: March 12, 2015Date of Patent: October 2, 2018Assignee: Daikin Industries, Ltd.Inventors: Tsunahiro Ohdou, Masaya Nishimura, Tomoki Saitou, Sachiko Yamaguchi
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Patent number: 9950935Abstract: A water treatment device includes: an insulating divider which divides a space inside a water tank into two treatment vessels adjacent to each other in a horizontal direction, and includes a current carrier which is able to energize water in the two treatment vessels; a treatment unit including a pair of electrodes, a power supply, and a power supply controller; a water supplier which supplies water to each of the treatment vessels; and a draining member which drains water from each of the treatment vessels. The treatment unit includes a detector which detects a level of water in each of the treatment vessels based on an index corresponding to a current value between the pair of electrodes.Type: GrantFiled: May 19, 2015Date of Patent: April 24, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tomoki Saitou, Masaya Nishimura, Tsunahiro Ohdou, Sachiko Yamaguchi
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Patent number: 9914650Abstract: A water treatment unit performs a normal operation during which discharge parts generate an electric discharge in a state where water flows into a treatment vessel and treated water flows out of the treatment vessel. When the water treatment unit starts operating, the water treatment unit performs a preparatory operation for a predetermined period of time before starting the normal operation. During the preparatory operation, the discharge parts generate an electric discharge in a state where an outflow of the water from the treatment vessel is stopped. As a result, the water which has been stagnating in the treatment vessel while the water treatment unit is not operating and in which bacteria have grown is sufficiently sterilized.Type: GrantFiled: March 19, 2015Date of Patent: March 13, 2018Assignee: Daikin Industries, Ltd.Inventors: Tomoki Saitou, Masaya Nishimura, Tsunahiro Ohdou, Sachiko Yamaguchi
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Publication number: 20170354988Abstract: The humidifier includes a humidification section which vaporizes water to produce humidified air, and a fan which produces in an air passage an air flow delivering the humidified air to the outside. The humidifier further includes a sterilized water producing section which produces sterilized water, an ultrasonic irradiator which produces sterilizing mist through ultrasonic irradiation of the sterilized water, an auxiliary passage through which the sterilizing mist is delivered to the outside, and an operation switching mechanism. The operation switching mechanism is switched between a first operation mode in which the air passage and the auxiliary passage communicate with each other to introduce the sterilizing mist into the air passage, and a second operation mode in which communication between the air passage and the auxiliary passage is blocked.Type: ApplicationFiled: December 24, 2015Publication date: December 14, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tsunahiro OHDOU, Masaya NISHIMURA, Tomoki SAITOU, Sachiko YAMAGUCHI
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Publication number: 20170349456Abstract: A water treatment vessel (10) causes electric discharge in water stored therein to produce a sterilizing factor. The water treatment vessel (10) moves in accordance with the level of water in a reservoir (30) to be switched between a discharging state where the water treatment vessel (10) and the reservoir (30) have no communication, and a pair of electrodes (16, 17) are immersed in water in the water treatment vessel (10) to cause the electric discharge, and a draining state where the pair of electrodes (16, 17) come out of water in the water treatment vessel (10) to stop the electric discharge, and water flows out of the water treatment vessel (10) into the reservoir (30). The water supplier (20) supplies water to the water treatment vessel (10) in the draining state, and stop the supply of water to the water treatment vessel (10) in the discharging state.Type: ApplicationFiled: December 24, 2015Publication date: December 7, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tsunahiro OHDOU, Masaya NISHIMURA, Tomoki SAITOU, Sachiko YAMAGUCHI
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Publication number: 20170267551Abstract: A water treatment device includes: an insulating divider which divides a space inside a water tank into two treatment vessels adjacent to each other in a horizontal direction, and includes a current carrier which is able to energize water in the two treatment vessels; a treatment unit including a pair of electrodes, a power supply, and a power supply controller; a water supplier which supplies water to each of the treatment vessels; and a draining member which drains water from each of the treatment vessels. The treatment unit includes a detector which detects a level of water in each of the treatment vessels based on an index corresponding to a current value between the pair of electrodes.Type: ApplicationFiled: May 19, 2015Publication date: September 21, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomoki SAITOU, Masaya NISHIMURA, Tsunahiro OHDOU, Sachiko YAMAGUCHI
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Publication number: 20170107123Abstract: In a submerged discharge device, a pair of electrodes is arranged in a liquid in a reservoir to receive an alternating voltage from an alternating power source, thereby generating a submerged discharge using a discharger arranged in the liquid between the pair of electrodes. A surface of this pair of electrodes has a coating that ensures the submerged discharge generated by the discharger. This may reduce the area of contact between the surface of the pair of electrodes and the liquid in the treatment vessel to reduce the consumption of the pair of electrodes.Type: ApplicationFiled: March 12, 2015Publication date: April 20, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tsunahiro OHDOU, Masaya NISHIMURA, Tomoki SAITOU, Sachiko YAMAGUCHI
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Publication number: 20170088444Abstract: A water treatment unit performs a normal operation during which discharge parts generate an electric discharge in a state where water flows into a treatment vessel and treated water flows out of the treatment vessel. When the water treatment unit starts operating, the water treatment unit performs a preparatory operation for a predetermined period of time before starting the normal operation. During the preparatory operation, the discharge parts generate an electric discharge in a state where an outflow of the water from the treatment vessel is stopped. As a result, the water which has been stagnating in the treatment vessel while the water treatment unit is not operating and in which bacteria have grown is sufficiently sterilized.Type: ApplicationFiled: March 19, 2015Publication date: March 30, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tomoki SAITOU, Masaya NISHIMURA, Tsunahiro OHDOU, Sachiko YAMAGUCHI
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Patent number: 9334179Abstract: A water treatment system includes a water treatment unit and insulators. The water treatment unit is provided in an intermediate portion of a water passage allowing target water to flow, and produces bactericidal factors in the target water utilizing a discharge. The insulators are provided at an inflow side and an outflow side of the water treatment unit, respectively, and electrically insulate the water flowing to and out of the water treatment unit from the water treatment unit. The insulator at the inflow side sprays the target water to insulate the water. The insulator at the outflow side allows the target water to fall down from the water treatment unit to insulate the water.Type: GrantFiled: September 24, 2013Date of Patent: May 10, 2016Assignee: Daikin Industries, Ltd.Inventors: Masaya Nishimura, Kenkichi Kagawa, Sachiko Yamaguchi, Tsunahiro Ohdou, Tomoki Saitou
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Patent number: 9328002Abstract: A discharge unit includes an alternating high-voltage generator, a pair of electrodes in water, the pair being configured to receive a voltage from the high-voltage generator, and an insulating divider configured to separate the pair of electrodes from each other in the water, and having a small discharge hole defining a path of current to flow between the pair of electrodes. The voltage is applied to the pair of electrodes to generate an electric discharge in the discharge hole.Type: GrantFiled: September 24, 2013Date of Patent: May 3, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Masaya Nishimura, Kenkichi Kagawa, Tsunahiro Ohdou, Tomoki Saitou, Sachiko Yamaguchi
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Publication number: 20150251935Abstract: A water treatment system includes a water treatment unit and insulators. The water treatment unit is provided in an intermediate portion of a water passage allowing target water to flow, and produces bactericidal factors in the target water utilizing a discharge. The insulators are provided at an inflow side and an outflow side of the water treatment unit, respectively, and electrically insulate the water flowing to and out of the water treatment unit from the water treatment unit. The insulator at the inflow side sprays the target water to insulate the water. The insulator at the outflow side allows the target water to fall down from the water treatment unit to insulate the water.Type: ApplicationFiled: September 24, 2013Publication date: September 10, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masaya Nishimura, Kenkichi Kagawa, Sachiko Yamaguchi, Tsunahiro Ohdou, Tomoki Saitou
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Publication number: 20150239755Abstract: A discharge unit includes an alternating high-voltage generator, a pair of electrodes in water, the pair being configured to receive a voltage from the high-voltage generator, and an insulating divider configured to separate the pair of electrodes from each other in the water, and having a small discharge hole defining a path of current to flow between the pair of electrodes. The voltage is applied to the pair of electrodes to generate an electric discharge in the discharge hole.Type: ApplicationFiled: September 24, 2013Publication date: August 27, 2015Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masaya Nishimura, Kenkichi Kagawa, Tsunahiro Ohdou, Tomoki Saitou, Sachiko Yamaguchi