公开(公告)号：US20230204608A1

公开(公告)日：2023-06-29

申请号：US17915762

申请日：2021-01-26

Applicant: ORGANO CORPORATION

Inventor： Fumitaka ICHIHARA ,  Tsukasa KONDO ,  Hiroshi SUGAWARA

IPC: G01N35/00 ,  G01N1/10 ,  G01N15/06

CPC classification number: G01N35/00613 ,  G01N35/00732 ,  G01N1/10 ,  G01N35/0092 ,  G01N15/0618 ,  G01N2035/00475 ,  G01N2001/1025

Abstract: A water quality management method for performing at least one of a quantitative analysis and a qualitative analysis of fine particles contained in water to be analyzed that includes connecting a filtration device provided with a fine particle capturing membrane for capturing fine particles to a flow pipe through which the water to be analyzed flows, allowing the water to be analyzed to flow from the flow pipe and through the fine particle capturing membrane attached to the filtration device for a predetermined period of time to capture fine particles contained in the water to be analyzed to form a fine particle capturing membrane sample, and performing at least one of a quantitative analysis and a qualitative analysis of the fine particle capturing membrane sample of a target water flow period at an arbitrary timing.

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

IPC: B01J31/28 ,  B01J41/12 ,  C02F1/42

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.

公开(公告)号：US20240239695A1

公开(公告)日：2024-07-18

申请号：US18280737

申请日：2022-02-03

Applicant: ORGANO CORPORATION

Inventor： Keisuke SASAKI ,  Mayu ABE ,  Fumio SUDO ,  Hiroshi YAMADA ,  Tsukasa KONDO

IPC: C02F1/469 ,  B01D61/46 ,  B01D61/48 ,  C02F1/72 ,  C02F101/10

CPC classification number: C02F1/4695 ,  B01D61/463 ,  B01D61/485 ,  C02F1/725 ,  C02F2101/10

Abstract: A water treatment apparatus for removing dissolved oxygen contained in water to be treated includes: an anode; a cathode; and a dissolved oxygen removal chamber which is located between the anode and the cathode and filled with an ion exchanger. At least a portion of the ion exchanger filled in the dissolved oxygen removal chamber is an ion exchanger on which a metal catalyst is supported. The ion exchanger on which the metal catalyst is supported is filled in a single bed configuration in at least a portion of the dissolved oxygen removal chamber. A DC current is applied between the anode and the cathode.

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

IPC: B01D61/22 ,  C02F1/00 ,  C02F1/44 ,  B01D61/14 ,  B01D61/18

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.

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

IPC: C02F1/42 ,  C02F1/44

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.

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

IPC: C02F9/00 ,  C02F1/42 ,  C02F1/44

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：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.

公开(公告)号：US20230249992A1

公开(公告)日：2023-08-10

申请号：US18011305

申请日：2021-05-24

Applicant: ORGANO CORPORATION

Inventor： Keisuke SASAKI ,  Fumio SUDO ,  Kazushige TAKAHASHI ,  Tsukasa KONDO ,  Kenji SHIBASAKI ,  Mayu ABE

IPC: C02F1/42 ,  C02F1/469 ,  C02F1/32 ,  C02F1/58 ,  B01J31/30

CPC classification number: C02F1/42 ,  C02F1/4695 ,  C02F1/32 ,  C02F1/58 ,  B01J31/30 ,  C02F2103/04

Abstract: A hydrogen peroxide removing apparatus for removing hydrogen peroxide contained in water to be processed includes: anode and cathode; and hydrogen peroxide removal chamber provided between anode and cathode and at least partially filled with a metal catalyst with hydrogen peroxide decomposition ability, wherein a DC voltage is applied between anode and cathode.