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公开(公告)号：US20230416120A1
公开(公告)日：2023-12-28
申请号：US18038050
申请日：2021-08-04
Applicant: ORGANO CORPORATION
Inventor： Fumitaka ICHIHARA , Fumio SUDO , Tsukasa KONDO , Hiroshi SUGAWARA
CPC classification number: C02F1/42 , C02F1/444 , C02F2103/04
Abstract: An ultrapure water production system that has a simplified configuration and that can efficiently remove fine particles that are contained in ultrapure water is provided. Ultrapure water production system has ultrapure water supply line that is connected to point of use and that supplies ultrapure water to point of use; return line that returns the ultrapure water that has not been used at point of use to ultrapure water supply line; and at least one ion exchange apparatus that is provided on ultrapure water supply line. Space velocity of water to be treated that flows in final-stage ion exchange apparatus is 170 (1/hr) or more, and wherein final-stage ion exchange apparatus is an ion exchange apparatus that is closest to point of use from among at least one ion exchange apparatus.
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公开(公告)号：US20220234931A1
公开(公告)日：2022-07-28
申请号：US17613731
申请日：2020-05-22
Applicant: ORGANO CORPORATION
Inventor： Fumitaka ICHIHARA , Tsukasa KONDO , Hiroshi SUGAWARA , Koichiro HASHIMOTO
Abstract: Fine particles that are contained in ultrapure water supplied to a point of use is further reduced.
Ultrapure water production system has ultrapure water supply line that is connected to point of uses, wherein ultrapure water flows through ultrapure water supply line; and first ion exchange apparatus, membrane filtration apparatus and second ion exchange apparatus that are arranged in series on ultrapure water supply line. Membrane filtration apparatus is arranged between first ion exchange apparatus and second ion exchange apparatus. At least a part of the ultrapure water that flows out from membrane filtration apparatus is treated by second ion exchange apparatus before the at least a part of the ultrapure water is supplied to point of uses.-
公开(公告)号：US20200070098A1
公开(公告)日：2020-03-05
申请号：US16491989
申请日：2018-02-08
Applicant: ORGANO CORPORATION
Inventor： Fumitaka ICHIHARA , Hiroshi SUGAWARA
Abstract: The level of cleanliness of a hollow fiber membrane device is evaluated before it is installed in an ultrapure water production system. A method of evaluating the level of cleanliness of the hollow fiber membrane device includes capturing fine particles in permeating water by means of a first filter membrane, wherein the permeating water is ultrapure water that permeates through the hollow fiber membrane device before the hollow fiber membrane device is installed in an ultrapure water production system; and analyzing the fine particles that are captured by the filter membrane.
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4.发明申请公开(公告)号：US20240382940A1
公开(公告)日：2024-11-21
申请号：US18688824
申请日：2022-08-08
Applicant: ORGANO CORPORATION
Inventor： Tsukasa KONDO , Fumitaka ICHIHARA , Hiroshi SUGAWARA
Abstract: A new catalytic metal supporting resin production method that can streamline the purification process, and an ultrapure water production method that uses the catalytic metal supporting resin production method are provided. The method for producing a resin includes first filling a single vessel with first anion exchange resin that supports a catalytic metal and second anion exchange resin that does not support a catalytic metal and then purifying together first anion exchange resin and second anion exchange resin that fill the vessel. The ultrapure water production method includes reducing the amount of hydrogen peroxide or dissolved oxygen by causing water being treated that contains hydrogen peroxide or dissolved oxygen to come into contact with an ion exchange resin that contains at least the resin and that is produced by the resin production method.
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公开(公告)号：US20230365436A1
公开(公告)日：2023-11-16
申请号：US18025978
申请日：2021-08-23
Applicant: ORGANO CORPORATION
Inventor： Kyohei TSUTANO , Satoshi NAKAI , Hiroshi SUGAWARA
CPC classification number: C02F1/42 , C02F1/004 , C02F2209/003 , C02F2201/005 , C02F2209/40 , C02F2209/006 , C02F2103/04
Abstract: Distribution pipe for conducting ultrapure water from ultrapure water production facility to cleaning apparatus treatment unit provided on distribution pipe, distribution pipe for conducting ultrapure water to cleaning apparatus branches from distribution pipe between ultrapure water production facility and treatment unit, water amount controller provided in a first branch portion where distribution pipe branches from distribution pipe, water amount controller for controlling the ultrapure water supplied from distribution pipe to cleaning apparatus comparator for comparing a first amount of impurities contained in the ultrapure water treated by treatment unit with a second amount of impurities contained in the non-treated ultrapure water by treatment unit and flow path controller for controlling water amount controllers based on the results of the comparison.
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Patent Agency Ranking
公开(公告)号：US20230271138A1
公开(公告)日：2023-08-31
申请号：US18015436
申请日：2021-06-11
Applicant: ORGANO CORPORATION
Inventor： Fumitaka ICHIHARA , Fumio SUDO , Tsukasa KONDO , Hiroshi SUGAWARA
CPC classification number: B01D61/22 , C02F1/008 , C02F1/444 , B01D61/146 , B01D61/18 , C02F2103/04
Abstract: An apparatus for producing ultrapure water: first ultrafiltration membrane that is connected to point of use and that supplies ultrapure water to point of use; first concentrated water return line that returns concentrated water of first ultrafiltration membrane to an upstream side of first ultrafiltration membrane; pressure gauge that measures pressure at an outlet of first ultrafiltration membrane; and means for adjusting flow rate of the concentrated water (first valve). Means for adjusting the flow rate of the concentrated water can be operated such that when the flow rate of the concentrated water is changed, a change in the pressure at the outlet of first ultrafiltration membrane that is measured by pressure gauge is kept within a predetermined range.
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公开(公告)号：US20210078873A1
公开(公告)日：2021-03-18
申请号：US16979421
申请日：2019-02-14
Applicant: ORGANO CORPORATION
Inventor： Nozomi TAKATORI , Hiroshi SUGAWARA , Kazushige TAKAHASHI , Fumio SUDO
Abstract: A water treatment management apparatus used for monitoring and evaluating water supplied to a water treatment system such as an ultrapure water production system and performing appropriate management of operation of the water treatment system includes: a pure water production unit for evaluation to which water to be supplied to the water treatment system is supplied as target water, the pure water production unit for evaluation including a TOC removal apparatus for performing a unit operation of removing total organic carbon (TOC) components; and measuring means for measuring TOC concentration at a plurality of measurement points in the pure water production unit for evaluation, the plurality of the measurement points including an inlet and an outlet of the pure water production unit for evaluation.
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8.发明公开公开(公告)号：US20240255411A1
公开(公告)日：2024-08-01
申请号：US18565684
申请日：2022-03-18
Applicant: ORGANO CORPORATION
Inventor： Fumitaka ICHIHARA , Hiroshi SUGAWARA , Tsukasa KONDO , Fumio SUDO
IPC: G01N15/1434 , C02F1/00 , C02F1/20 , C02F1/32 , C02F1/42 , C02F1/44 , C02F9/00 , C02F101/10 , C02F101/30 , C02F103/04 , G01N15/14 , G01N33/18
CPC classification number: G01N15/1434 , C02F1/008 , C02F9/00 , G01N33/18 , C02F1/20 , C02F1/32 , C02F1/42 , C02F2001/427 , C02F1/444 , C02F2101/10 , C02F2101/30 , C02F2103/04 , C02F2301/08 , G01N2015/1486
Abstract: A particle measuring apparatus is provided that has improved measurement accuracy regardless of particle diameters and that ensures prompt measurement. A particle measuring apparatus has: first and second particle counters that obtain a number of particles that are contained in water that flows in a predetermined section of an ultrapure water production apparatus; and particle number calculation means that calculates the number of the particles that are contained in the water that flows in the predetermined section for each particle diameter range based on measurement results of the first and second particle counters. The first particle counter and the second particle counter have different counting efficiencies.
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9.发明公开公开(公告)号：US20240101448A1
公开(公告)日：2024-03-28
申请号：US18275149
申请日：2022-01-17
Applicant: ORGANO CORPORATION
Inventor： Kyohei TSUTANO , Akihiko TSUDA , Hiroshi SUGAWARA
IPC: C02F1/42
CPC classification number: C02F1/42
Abstract: An ion exchanger unit that adsorbs impurities in a liquid to be tested, and a controller that switches between causing the flow of the liquid to be tested into the ion exchanger unit and the flow of eluent to elute the impurities adsorbed in the ion exchanger unit into the ion exchanger unit.
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公开(公告)号：US20200070097A1
公开(公告)日：2020-03-05
申请号：US16491975
申请日：2018-02-08
Applicant: ORGANO CORPORATION
Inventor： Fumitaka ICHIHARA , Hiroshi SUGAWARA
Abstract: Provided is a method of washing a hollow fiber membrane device which can efficiently remove fine particles while limiting the impact of an ultrapure water production system on the starting time. The method of washing a hollow fiber membrane device includes washing a hollow fiber membrane device with an alkaline aqueous solution before the hollow fiber membrane device is installed in an ultrapure water production system. The hollow fiber membrane device is washed by means of a washing device that is different from the ultrapure water production system.
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