Patents by Inventor Kazuki Ishii
Kazuki Ishii 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: 20240161298Abstract: The present invention improves estimation accuracy. An information processing system includes: an acquisition unit (102) configured to acquire adjustment information based on a feature value of learning data used for generation of a learned model that estimates a health condition of a patient or a subject; a processing unit (103) configured to perform processing on a biological sample to be judged on the basis of the adjustment information; and an estimation unit (104) configured to estimate a diagnosis result by inputting measurement data acquired by the processing to the learned model.Type: ApplicationFiled: February 7, 2022Publication date: May 16, 2024Inventors: SHIORI SASADA, KAZUKI AISAKA, KENJI YAMANE, JUNICHIRO ENOKI, YOSHIYUKI KOBAYASHI, MASATO ISHII, KENJI SUZUKI
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Patent number: 11958019Abstract: A water treatment chemical for membranes, which contains a polymer compound having a carboxyl group and a sulfo group, preferably a polymer compound represented by formula (1). A membrane treatment method wherein this water treatment chemical for membranes is added to membrane feed water when water to be treated, which contains an organic compound having a phenolic hydroxy group, is subjected to a membrane separation treatment. In the formula, m and n represent molar percentages of respective structural units; (m+n) is 90-100%; and R represents an anionic group containing a sulfo group.Type: GrantFiled: September 30, 2019Date of Patent: April 16, 2024Assignee: KURITA WATER INDUSTRIES LTD.Inventor: Kazuki Ishii
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Publication number: 20240067539Abstract: The present invention is a method for operating a demineralization apparatus provided with a plurality of demineralizing lines arranged in parallel and having demineralizers, the method comprising passing through some of the demineralizing lines water to be treated to produce demineralized water while passing through another demineralizing line(s) dilute water from a dilute water tank to perform washing of the line(s), and returning water used for said washing back to the dilute water tank, and being characterized by, when the water quality of the dilute water is on the high salts concentration side past a predefined value, discharging part of the dilute water so as to let said part join the water to be treated and providing a new supply of dilute water for replenishment.Type: ApplicationFiled: September 2, 2021Publication date: February 29, 2024Applicant: KURITA WATER INDUSTRIES LTD.Inventors: Kazuki ISHII, Kunihiro HAYAKAWA, Junichi TAKAHASHI
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Publication number: 20230285903Abstract: A method for operating a desalting device that has a first desalting device and a second desalting device, said method comprising: a normal operation step for supplying to-be-treated water to the first desalting device so as to separate the to-be-treated water into first concentrated water and first desalted water, and supplying the first concentrated water to the second desalting device so as to separate the first concentrated water into second concentrated water and second desalted water; and a recovery operation step for supplying the to-be-treated water to the first desalting device so as to separate the to-be-treated water into the first concentrated water and first permeate water, and passing dilute water having a lower concentration than the first concentrated water through the second desalting device so as to recover desalting performance of the second desalting device.Type: ApplicationFiled: September 2, 2021Publication date: September 14, 2023Applicant: KURITA WATER INDUSTRIES LTD.Inventors: Kazuki ISHII, Mamoru IWASAKI, Itaru ITO
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Patent number: 11400420Abstract: A solution-type water treatment chemical, includes, as one, gluconic acid (salt) and a surfactant having an HLB determined by the following equation (1) satisfying the following equation (2), wherein in a relationship between concentrations of the gluconic acid (salt) and the surfactant and a molecular weight and HLB of the surfactant, the gluconic acid (salt) and the surfactant are contained such that the water treatment chemical does not form a gel or precipitate. HLB=(?inorganic value/?organic value)×10??(1) Molecular weight>?34.Type: GrantFiled: February 28, 2018Date of Patent: August 2, 2022Assignee: KURITA WATER INDUSTRIES LTD.Inventor: Kazuki Ishii
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Publication number: 20210339205Abstract: A water treatment chemical for membranes, which contains a polymer compound having a carboxyl group and a sulfo group, preferably a polymer compound represented by formula (1). A membrane treatment method wherein this water treatment chemical for membranes is added to membrane feed water when water to be treated, which contains an organic compound having a phenolic hydroxy group, is subjected to a membrane separation treatment. In the formula, m and n represent molar percentages of respective structural units; (m+n) is 90-100%; and R represents an anionic group containing a sulfo group.Type: ApplicationFiled: September 30, 2019Publication date: November 4, 2021Applicant: KURITA WATER INDUSTRIES LTD.Inventor: Kazuki ISHII
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Patent number: 11077403Abstract: A method for treating water, the method including adding, as coagulants, a polymer compound having a phenolic hydroxyl group and an iron-based coagulant to water to be treated, filtering the coagulated water with a clarification filter, and subjecting the filtered water to a reverse osmosis membrane treatment, wherein the addition of the coagulants is controlled such that a ratio between an addition concentration of the polymer compound having a phenolic hydroxyl group and an addition concentration of the iron-based coagulant is constant.Type: GrantFiled: September 15, 2017Date of Patent: August 3, 2021Assignee: KURITA WATER INDUSTRIES LTD.Inventors: Hidekuni Kameda, Kazuki Ishii, Yaozhen Chen
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Patent number: 10780400Abstract: Provided is an agent and a liquid for cleaning an RO membrane to remove effectively foulants that can not be sufficiently removed with conventional cleaning agents when an RO membrane particularly an aromatic polyamide RO membrane has been used for water treatment and has become fouled resulting in degradation of performance such as permeation flux, pressure difference, and salt rejection rate. The agent for cleaning an RO membrane includes an aliphatic amide and/or an aromatic amide. Also provided is a method for cleaning an RO membrane with the cleaning agent or the cleaning liquid. The aliphatic amide and/or the aromatic amide particularly an aliphatic amide and/or an aromatic amide being soluble in water and having a relatively low molecular weight remove effectively foulants adhered on an aromatic polyamide RO membrane.Type: GrantFiled: March 23, 2016Date of Patent: September 22, 2020Assignee: KURITA WATER INDUSTRIES LTD.Inventors: Kazuki Ishii, Takahiro Kawakatsu
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Patent number: 10737221Abstract: Provided is a scale inhibitor for RO membranes which effectively inhibits the precipitation of calcium carbonate in an RO membrane treatment without increasing the phosphorus concentration in effluent and which can be used even in the RO membrane treatment of feed in which high-M-alkalinity concentrate having a calcium hardness level of 100 to 600 mg/L-CaCO3 and an M alkalinity of 1000 to 16000 mg-CaCO3/L is produced. A scale inhibitor for reverse osmosis membranes which inhibits the formation of calcium carbonate scale in an RO membrane treatment, the scale inhibitor including components (A) and (B) below. An RO membrane treatment method including adding the scale inhibitor for RO membranes to RO feed.Type: GrantFiled: September 12, 2016Date of Patent: August 11, 2020Assignee: KURITA WATER INDUSTRIES LTD.Inventor: Kazuki Ishii
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Publication number: 20200129928Abstract: A water treatment chemical for a membrane, being is a water treatment chemical for preventing membrane contamination caused by an organic compound having a phenolic hydroxy group and including an organic amine having two or more nitrogen atoms and having five or more carboxyl groups or four or more phosphate groups. A membrane treatment method including adding the water treatment chemical for a membrane to water to be treated which contains an organic compound having a phenolic hydroxy group and then subjecting the water to be treated to membrane separation treatment.Type: ApplicationFiled: March 2, 2018Publication date: April 30, 2020Inventors: Kazuki ISHII, Nozomu IKUNO
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Publication number: 20200047130Abstract: A solution-type water treatment chemical, includes, as one, gluconic acid (salt) and a surfactant having an HLB determined by the following equation (1) satisfying the following equation (2), wherein in a relationship between concentrations of the gluconic acid (salt) and the surfactant and a molecular weight and HLB of the surfactant, the gluconic acid (salt) and the surfactant are contained such that the water treatment chemical does not form a gel or precipitate. HLB=(? inorganic value/? organic value)×10??(1) Molecular weight>?34.Type: ApplicationFiled: February 28, 2018Publication date: February 13, 2020Inventor: Kazuki ISHII
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Publication number: 20190388840Abstract: A method for treating water, the method including adding, as coagulants, a polymer compound having a phenolic hydroxyl group and an iron-based coagulant to water to be treated, filtering the coagulated water with a clarification filter, and subjecting the filtered water to a reverse osmosis membrane treatment, wherein the addition of the coagulants is controlled such that a ratio between an addition concentration of the polymer compound having a phenolic hydroxyl group and an addition concentration of the iron-based coagulant is constant.Type: ApplicationFiled: September 15, 2017Publication date: December 26, 2019Inventors: Hidekuni KAMEDA, Kazuki ISHII, Yaozhen CHEN
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Patent number: 10443023Abstract: Provided are a cleaning agent and a cleaning liquid that prevent a reduction in the rejection rate of an RO membrane which may occur when the RO membrane is cleaned and a method for cleaning an RO membrane with the cleaning liquid. The agent for cleaning an RO membrane includes a urea derivative. The urea derivative preferably includes urea (H2N—CO—NH2) and/or biuret (H2N—CO—NH—CO—NH2). The cleaning liquid is an aqueous solution produced by diluting the cleaning agent. The method for cleaning an RO membrane uses the cleaning liquid. Urea and biuret have a structure analogous to amide bonds included in aromatic polyamide RO membranes, and have a strong affinity for amide bond portions. Urea and biuret adsorb onto the amide bond portions, and prevent the amide bonds from being broken by the cleaning liquid.Type: GrantFiled: October 1, 2015Date of Patent: October 15, 2019Assignee: KURITA WATER INDUSTRIES LTD.Inventors: Takahiro Kawakatsu, Kazuki Ishii
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Publication number: 20190030489Abstract: Provided is a scale inhibitor for RO membranes which effectively inhibits the precipitation of calcium carbonate in an RO membrane treatment without increasing the phosphorus concentration in effluent and which can be used even in the RO membrane treatment of feed in which high-M-alkalinity concentrate having a calcium hardness level of 100 to 600 mg/L-CaCO3 and an M alkalinity of 1000 to 16000 mg-CaCO3/L is produced. A scale inhibitor for reverse osmosis membranes which inhibits the formation of calcium carbonate scale in an RO membrane treatment, the scale inhibitor including components (A) and (B) below. An RO membrane treatment method including adding the scale inhibitor for RO membranes to RO feed.Type: ApplicationFiled: September 12, 2016Publication date: January 31, 2019Applicant: KURITA WATER INDUSTRIES LTD.Inventor: Kazuki ISHII
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Publication number: 20180257038Abstract: Provided is an agent and a liquid for cleaning an RO membrane to remove effectively foulants that can not be sufficiently removed with conventional cleaning agents when an RO membrane particularly an aromatic polyamide RO membrane has been used for water treatment and has become fouled resulting in degradation of performance such as permeation flux, pressure difference, and salt rejection rate. The agent for cleaning an RO membrane includes an aliphatic amide and/or an aromatic amide. Also provided is a method for cleaning an RO membrane with the cleaning agent or the cleaning liquid. The aliphatic amide and/or the aromatic amide particularly an aliphatic amide and/or an aromatic amide being soluble in water and having a relatively low molecular weight remove effectively foulants adhered on an aromatic polyamide RO membrane.Type: ApplicationFiled: March 23, 2016Publication date: September 13, 2018Inventors: Kazuki ISHII, Takahiro KAWAKATSU
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Publication number: 20180200678Abstract: An agent for cleaning an RO membrane, which includes an aldonic acid and/or a salt of an aldonic acid, removes effectively foulants that cannot be sufficiently removed with conventional cleaning agents when an RO membrane used for water treatment. In a method for cleaning an RO membrane with the cleaning agent or the cleaning liquid, while the detachment and hydrolysis effects are achieved by performing cleaning under alkaline conditions, chelation of heavy metals is caused by the aldonic acid and/or the salt of an aldonic acid. When an anionic surfactant is used in combination with the aldonic acid and/or the salt of an aldonic acid, the anionic surfactant causes the detachment of foulants. When a polyol having a molecular weight of 1000 or less is used in combination with the aldonic acid and/or the salt of an aldonic acid, the polyol causes wetting and swelling of foulants.Type: ApplicationFiled: March 23, 2016Publication date: July 19, 2018Inventors: Kazuki ISHII, Takahiro KAWAKATSU
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Publication number: 20170275571Abstract: Provided are a cleaning agent and a cleaning liquid that prevent a reduction in the rejection rate of an RO membrane which may occur when the RO membrane is cleaned and a method for cleaning an RO membrane with the cleaning liquid. The agent for cleaning an RO membrane includes a urea derivative. The urea derivative preferably includes urea (H2N—CO—NH2) and/or biuret (H2N—CO—NH—CO—NH2). The cleaning liquid is an aqueous solution produced by diluting the cleaning agent. The method for cleaning an RO membrane uses the cleaning liquid. Urea and biuret have a structure analogous to amide bonds included in aromatic polyamide RO membranes, and have a strong affinity for amide bond portions. Urea and biuret adsorb onto the amide bond portions, and prevent the amide bonds from being broken by the cleaning liquid.Type: ApplicationFiled: October 1, 2015Publication date: September 28, 2017Inventors: Takahiro KAWAKATSU, Kazuki ISHII
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Patent number: 9568795Abstract: In a liquid crystal display device that uses a TFT, a contact hole is formed to connect an image signal line. An organic film is formed so as to cover the image signal line, and a common electrode, which is a transparent electrode, is formed on the organic film. An interlayer insulating film is formed on the common electrode. A through hole is formed in the interlayer insulating film, and the diameter of the through hole is greater than the diameter of the contact hole.Type: GrantFiled: July 7, 2015Date of Patent: February 14, 2017Assignee: Japan Display Inc.Inventors: Takao Nakamura, Kazuki Ishii, Daisuke Mutou, Hidenori Seki
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Publication number: 20160011478Abstract: In a liquid crystal display device that uses a TFT, a contact hole is formed to connect an image signal line. An organic film is formed so as to cover the image signal line, and a common electrode, which is a transparent electrode, is formed on the organic film. An interlayer insulating film is formed on the common electrode. A through hole is formed in the interlayer insulating film, and the diameter of the through hole is greater than the diameter of the contact hole.Type: ApplicationFiled: July 7, 2015Publication date: January 14, 2016Inventors: Takao NAKAMURA, Kazuki ISHII, Daisuke Mutou, Hidenori SEKI
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Patent number: 9170463Abstract: In a liquid crystal display device that uses a TFT, a contact hole is formed to connect an image signal line. An organic film is formed so as to cover the image signal line, and a common electrode, which is a transparent electrode, is formed on the organic film. An interlayer insulating film is formed on the common electrode. A through hole is formed in the interlayer insulating film, and the diameter of the through hole is greater than the diameter of the contact hole.Type: GrantFiled: October 17, 2013Date of Patent: October 27, 2015Assignee: JAPAN DISPLAY INC.Inventors: Takao Nakamura, Kazuki Ishii, Daisuke Mutou, Hidenori Seki