Patents by Inventor Ryohei Koguchi
Ryohei Koguchi 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: 20240400737Abstract: A copolymer having a unit (A) having a reactive silyl group, a unit (B) having a group represented by formula (1) shown below, and a unit (C) represented by formula (2) shown below. In the formulas, n1 represents 2 or 3, and n2 represents an integer of 0 to 300, n3 represents 2 or 3, n4 represents an integer of 0 to 300, R6 represents an alkyl group, and the ratio represented by (n4+1)/(number of carbon atoms in R6) is at least 0.5 but less than 9.Type: ApplicationFiled: August 15, 2024Publication date: December 5, 2024Applicant: AGC Inc.Inventors: Taihei TANIGUCHI, Hajime EGUCHI, Ryohei KOGUCHI
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Patent number: 12133935Abstract: To provide a medical device, whereby the non-specific absorption amount is reduced, its durability is excellent and eluents from the surface layer are reduced. The medical device comprises a device substrate and a surface layer provided on at least part of the surface of the device substrate in contact with water, wherein at least part of the surface of the device substrate is made of an inorganic material, the surface layer is made of a cured product of a compound having a biocompatible group and an alkoxysilyl group, the content of the biocompatible group in the compound is from 25 to 83% by mass, and the content of the alkoxysilyl group is from 2 to 70% by mass.Type: GrantFiled: July 1, 2020Date of Patent: November 5, 2024Assignee: AGC Inc.Inventors: Ryohei Koguchi, Hajime Eguchi, Kyoko Yamamoto
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Publication number: 20240260573Abstract: This heat tolerance-inducing agent for plants comprises a carrier composed of an active ingredient including at least one compound having a boiling point or sublimation point of 200° C. or lower supported on a porous material. The method for inducing heat tolerance of plants includes applying this heat tolerance-inducing agent to a plant.Type: ApplicationFiled: April 8, 2024Publication date: August 8, 2024Applicant: AGC Inc.Inventors: Hajime EGUCHI, Ryohei KOGUCHI, Tatsuya MIYAJIMA
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Publication number: 20240246024Abstract: Provided are, an acidic gas removing agent with smaller variation in amounts of carbon dioxide absorption even in the coexistence of water in removing carbon dioxide in a gas; an acidic gas removing method; an absorption device provided with the acidic gas removing agent; and an acidic gas cleaning device. Used is an acidic gas removing agent comprising one or more selected from the group consisting of a hydroxy group-containing compound having a number-average molecular weight of 500 or more and a derivative of the hydroxy group-containing compound.Type: ApplicationFiled: April 8, 2024Publication date: July 25, 2024Applicant: AGC Inc.Inventors: Ryohei KOGUCHI, Toyokazu SUZUKI, Shogo FUJISAKI, Takeaki ARAI, Chitoshi SUZUKI
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Publication number: 20230407107Abstract: The present invention relates to a liquid-repellent composition which is hydrocarbon-based and can impart excellent liquid repellency; a method for treating a substrate using the liquid-repellent composition; and an article equipped with a coating film which is hydrocarbon-based and has excellent liquid repellency. The liquid-repellent composition of the present invention comprises a polymer (A) having a unit based on the following monomer (a); in the method for treating a substrate of the present invention, a substrate is treated with the liquid-repellent composition of the present invention; and the article of the present invention has a substrate treated with the liquid-repellent composition of the present invention. Formula (a) is (R1—Q1—)HC?CH(—Q2—R2). Q1 and Q2 each independently a divalent linking group. R1 and R2 each independently a monovalent hydrocarbon group having 8 to 24 carbon atoms.Type: ApplicationFiled: September 5, 2023Publication date: December 21, 2023Applicant: AGC Inc.Inventors: Taihei TANIGUCHI, Ryohei KOGUCHI, Hajime EGUCHI, Masakatsu IRIE, Yusuke YASU, Hiroaki IWAMOTO, Kazunori SUGIYAMA
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Publication number: 20230302431Abstract: The present invention relates to an adsorbent including: an inorganic porous body; and an amine compound, in the inorganic porous body has an oil absorption value of 230 ml/100 g or more, and a peak diameter of a pore size, which is obtained based on a nitrogen adsorption method, of 20 nm or more and 100 nm or less. The present invention relates to an adsorbent including: an inorganic porous body; and an amine compound, in which the inorganic porous body has a pore volume of 1.2 cm3/g or more and 3.5 cm3/g or less, and a peak diameter of a pore size, which is obtained based on a nitrogen adsorption method, of 20 nm or more and 100 nm or less.Type: ApplicationFiled: May 12, 2023Publication date: September 28, 2023Applicants: AGC Inc., AGC SI-TECH CO., LTD.Inventors: Eisuke MUROTANI, Ryohei KOGUCHI, Taku YAMADA, Katsumasa NAKAHARA, Hajime KATAYAMA, Masaki INOUE
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Publication number: 20200346972Abstract: The present invention relates to a base material that comes into contact with water and contains a base material main body and a surface layer provided on at least a part of a surface that comes into contact with water of the base material main body, (1) in which the surface layer is composed of a cured product of a composition containing a compound having a biocompatible moiety and a reactive silyl group, the biocompatible moiety has a specific structure, the composition has a content of the biocompatible moiety being 25 to 83% by mass and a content of the reactive silyl group being 2 to 70% by mass, in a solid component, or (2) in which the surface layer has an elastic modulus showing a measured value in water being 0.1% to 63% with respect to a measured value after drying in the air.Type: ApplicationFiled: July 17, 2020Publication date: November 5, 2020Applicant: AGO IncInventors: Hajime EGUCHI, Kyoko YAMAMOTO, Ryohei KOGUCHI, Yosuke AMINO, Noriko TANABE
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Publication number: 20200330653Abstract: To provide a medical device, whereby the non-specific absorption amount is reduced, its durability is excellent and eluents from the surface layer are reduced. The medical device comprises a device substrate and a surface layer provided on at least part of the surface of the device substrate in contact with water, wherein at least part of the surface of the device substrate is made of an inorganic material, the surface layer is made of a cured product of a compound having a biocompatible group and an alkoxysilyl group, the content of the biocompatible group in the compound is from 25 to 83% by mass, and the content of the alkoxysilyl group is from 2 to 70% by mass.Type: ApplicationFiled: July 1, 2020Publication date: October 22, 2020Applicant: AGC Inc.Inventors: Ryohei Koguchi, Hajime Eguchi, Kyoko Yamamoto
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Publication number: 20200299626Abstract: To provide a cell culture container capable of preparing spheroids having a uniform size highly efficiently, and capable of microscopic observation simply, particularly fluorescence microscopic observation. A cell culture container comprising: side walls forming an opening, a bottom comprising a light-transmitting glass material, closing the lower end of the opening and having a plurality of recesses in a region which the opening faces on its upper surface, and a surface layer inhibiting cell adhesion formed on the inner surface of the recesses.Type: ApplicationFiled: June 8, 2020Publication date: September 24, 2020Applicant: AGC Inc.Inventors: Ryohei KOGUCHI, Hajime EGUCHI, Lijun ZHU, Kyoko YAMAMOTO
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Publication number: 20190077966Abstract: To provide a protein adhesion inhibitor from which a cured product having excellent protein non-adhesion and having excellent form stability so that a film formed therefrom will not warp, can be formed, a cured product using it, and an article. A protein adhesion inhibitor comprising a non-polymerizable fluorinated polymer having a specific group such as —(CnH2nO)— and a fluorine atom content QF of from 5 to 60 mass %, and at least one curable monomer selected from the group consisting of a vinyl monomer and a cyclic ether monomer, wherein the coefficient ? is at most 10. A cured product of the protein adhesion inhibitor. A medical device 1 comprising a substrate 2 and a coating layer 3 formed of the cured product of the protein adhesion inhibitor on the substrate 2.Type: ApplicationFiled: November 13, 2018Publication date: March 14, 2019Applicant: AGC Inc.Inventors: Ryohei KOGUCHI, Kyoko Yamamoto
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Patent number: 10138312Abstract: To provide an inhibitor for inhibiting protein adhesion capable of easily forming a coating layer which is excellent in water resistance, from which coating components are less likely to be eluted, on which protein is less likely to be adsorbed and which is excellent in biocompatibility; a coating solution; a medical device having a coating layer employing this inhibitor for inhibiting protein adhesion; a method for producing the same; and a fluoropolymer to be used in this inhibitor for inhibiting protein adhesion. A compound for inhibiting protein adhesion comprising a fluoropolymer that has units having a biocompatible group, a fluorine atom content of from 5 to 60 mass % and a proportion P represented by the following formula of from 0.1 to 4.5%. (Proportion P)=((proportion (mass %) of units having a biocompatible group to all units of the fluoropolymer))/(fluorine atom content (mass %) of the fluoropolymer))×100.Type: GrantFiled: December 21, 2016Date of Patent: November 27, 2018Assignee: AGC Inc.Inventors: Ryohei Koguchi, Kyoko Yamamoto, Yuriko Kaida, Tohru Itoh, Aya Wada, Hajime Eguchi
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Publication number: 20180296988Abstract: To provide a cell-trapping filter which has a high cell trapping efficiency and which is excellent in water resistance. A cell-trapping filter comprising a substrate and a cell-separating mechanism by size, wherein the substrate has, at least on its surface, a layer formed of a fluorinated polymer having units having a biocompatible group, having a fluorine atom content of from 5 to 60 mass % and having a proportion P represented by the following formula of from 0.Type: ApplicationFiled: June 21, 2018Publication date: October 18, 2018Applicants: Asahi Glass Company, Limited, National University Corporation Nagoya UniversityInventors: Naoto KIHARA, Ryohei KOGUCHI, Hajime EGUCHI, Masaru HORI, Hiromasa TANAKA, Kenji ISHIKAWA, Yoshinobu BABA, Hiroshi YUKAWA, Daisuke ONOSHIMA, Tetsunari HASE, Daiki KUBOYAMA
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Publication number: 20180298178Abstract: To provide a resin composition which is used to coat the substrate surface, thereby to selectively trap a variety of target substances via a ligand which specifically binds to the target substances on the substrate surface.Type: ApplicationFiled: June 19, 2018Publication date: October 18, 2018Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Hiroki SATO, Tatsuaki MIWA, Alimjan IDIRIS, Ryohei KOGUCHI, Kyoko YAMAMOTO, Hajime EGUCHI
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Publication number: 20170101497Abstract: To provide an inhibitor for inhibiting protein adhesion capable of easily forming a coating layer which is excellent in water resistance, from which coating components are less likely to be eluted, on which protein is less likely to be adsorbed and which is excellent in biocompatibility; a coating solution; a medical device having a coating layer employing this inhibitor for inhibiting protein adhesion; a method for producing the same; and a fluoropolymer to be used in this inhibitor for inhibiting protein adhesion. A compound for inhibiting protein adhesion comprising a fluoropolymer that has units having a biocompatible group, a fluorine atom content of from 5 to 60 mass % and a proportion P represented by the following formula of from 0.1 to 4.5%. (Proportion P)=((proportion (mass %) of units having a biocompatible group to all units of the fluoropolymer))/(fluorine atom content (mass %) of the fluoropolymer))×100.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Ryohei KOGUCHI, Kyoko Yamamoto, Yuriko Kaida, Tohru Itoh, Aya Wada, Hajime Eguchi
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Patent number: 8711300Abstract: In a process for producing a liquid crystal element comprising an alignment-treated substrate and a layer of polymer liquid crystal having a pattern, mesogenic groups in cross-linkable polymer liquid crystal are aligned, and the cross-linkable polymer liquid crystal is cross-linked while the mold is pressed against the layer of cross-linkable polymer liquid crystal, at a temperature higher than the glass transition temperature of the cross-linkable polymer liquid crystal and lower than the clearing point temperature of the cross-linkable polymer liquid crystal.Type: GrantFiled: September 10, 2012Date of Patent: April 29, 2014Assignee: Asahi Glass Company, LimitedInventors: Yuji Yamamoto, Yuriko Kaida, Ryohei Koguchi, Hiroshi Sakamoto
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Publication number: 20130016318Abstract: In a process for producing a liquid crystal element comprising an alignment-treated substrate and a layer of polymer liquid crystal having a pattern, mesogenic groups in cross-linkable polymer liquid crystal are aligned, and the cross-linkable polymer liquid crystal is cross-linked while the mold is pressed against the layer of cross-linkable polymer liquid crystal, at a temperature higher than the glass transition temperature of the cross-linkable polymer liquid crystal and lower than the clearing point temperature of the cross-linkable polymer liquid crystal.Type: ApplicationFiled: September 10, 2012Publication date: January 17, 2013Applicant: Ashai Glass Company, Ltd.Inventors: Yuji Yamamoto, Yuriko Kaida, Ryohei Koguchi, Hiroshi Sakamoto
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Publication number: 20120171442Abstract: A laminate of the present invention includes a first transparent resin layer, a first polymer liquid crystal layer, a second transparent resin layer, and a second polymer liquid crystal layer. A process for producing the laminate involves curing a resin to form the first transparent resin layer with certain liquid crystal alignment properties. The process then involves forming the first liquid crystal layer from a curable liquid crystalline monomer or a crosslinkable polymer liquid crystal on the first transparent resin layer. The first liquid crystal layer has the liquid crystal alignment properties of the first transparent resin layer. Next, the process involves forming a second transparent resin layer with different liquid crystal alignment properties on the first polymer liquid crystal layer, then forming a second polymer liquid crystal layer on the second transparent resin layer in the same manner.Type: ApplicationFiled: January 12, 2012Publication date: July 5, 2012Applicant: Asahi Glass Company, LimitedInventors: Yuji YAMAMOTO, Yuriko Kaida, Ryohei Koguchi, Hiromi Sakurai