Patents by Inventor Takashi Okazoe
Takashi Okazoe 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: 20240287131Abstract: The present invention provides a peptide having a fluoroalkyl group in the side chain. The present invention provides a peptide in which 2 or more amino acids are peptide-bonded in which at least one side chain of an amino acid residue constituting the peptide is represented by the following General Formula (1) [in the formula, Z1 is a divalent, trivalent, or tetravalent linking group other than an alkylene group; Rf is a C1-30 alkyl group substituted with at least two fluorine atoms, —SF5, or —SF4—CR101R102—CR103R104Cl (R101, R102, R103, and R104 are each independently a hydrogen atom, a fluorine atom, or a chlorine atom, and two or more of R101, R102, R103, and R104 are fluorine atoms); n3 is 1, 2, or 3, and the black circle indicates a bonding site].Type: ApplicationFiled: March 15, 2024Publication date: August 29, 2024Applicants: AGC Inc., The University of TokyoInventors: Kimiaki KASHIWAGI, Takashi OKAZOE, Kohsuke AIKAWA, Shinsuke SANDO, Jumpei MORIMOTO, Koji KADOTA, Ai KOHATA
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Patent number: 12060312Abstract: The objective of the present invention is to provide a method for producing an isocyanate compound safely and efficiently. The method for producing an isocyanate compound according to the present invention is characterized in comprising the steps of irradiating a high energy light to a halogenated methane at a temperature of 15° C. or lower in the presence of oxygen, and further adding a primary amine compound to be reacted without irradiating a high energy light.Type: GrantFiled: November 14, 2019Date of Patent: August 13, 2024Assignees: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, AGC INC.Inventors: Akihiko Tsuda, Takashi Okazoe
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Publication number: 20240228435Abstract: The present invention is a method for producing a tetrafluorosulfanyl group-containing aryl compound, in which a thioaryl compound represented by General Formula (2) is subjected to a reaction by adding to an olefin compound represented by General Formula (3) in the presence of a radical initiator to synthesize a tetrafluorosulfanyl group-containing aryl compound represented by General Formula (1) [in the formula, A1 is an aryl group which may have a substituent, or a heteroaryl group which may have a substituent; and R1, R2, R3, and R4 are each independently a hydrogen atom, a fluorine atom, or a chlorine atom, and two or more of R1, R2, R3, and R4 are a fluorine atom].Type: ApplicationFiled: March 15, 2024Publication date: July 11, 2024Applicants: AGC Inc., The University of TokyoInventors: Takashi OKAZOE, Kohsuke AIKAWA, Kyoko NOZAKI, Eisuke YASUO
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Publication number: 20240117113Abstract: A method for producing a polycarbonate, including reacting a dihydroxy component with a fluorine-containing carbonate component in a presence of a condensation catalyst to obtain a prepolymer, and heating the prepolymer at a temperature lower than a melting temperature of the prepolymer and subjecting the prepolymer to a solid state polymerization while discharging a by-produced fluorine-containing alcohol outside a system,Type: ApplicationFiled: November 16, 2023Publication date: April 11, 2024Applicants: AGC Inc., Nagoya Institute of TechnologyInventors: Takashi OKAZOE, Masahito SUZUKI
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Publication number: 20240009224Abstract: The present invention provides a nucleic acid having excellent cell membrane permeability.Type: ApplicationFiled: September 1, 2023Publication date: January 11, 2024Applicants: The University of Tokyo, AGC Inc.Inventors: Takashi OKAZOE, Kohsuke AIKAWA, Honoka WATANABE, Akimitsu OKAMOTO, Kunihiko MORIHIRO, Taiichi KAGEYAMA
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Publication number: 20230406820Abstract: The present invention provides a production method capable of efficiently synthesizing an SF5 group-containing compound, or the like. The present invention is a method for synthesizing an SF5 group-containing compound represented by the general formula (1) from a thioaryl compound represented by the general formula (2) [A1 is an aryl group or a heteroaryl group; G1 is —SH, —SCN, SF3, —S—S—R1, —S—CO—R2, —SR3, —SF2—R4, —S—Si—(R5)3, —S—PO—(R6)2, (N-phthalimidyl)thio group, or a thianthrenium group (R1 is an aryl group or a heteroaryl group; R2 and R5 are an aryl group, a heteroaryl group, an alkyl group, or an alkenyl group; R3 and R4 are an alkyl group or an alkenyl group, R6 is an aryloxy group, a heteroaryloxy group, an alkyloxy group, or an alkenyloxy group)].Type: ApplicationFiled: August 30, 2023Publication date: December 21, 2023Applicants: AGC Inc., The University of TokyoInventors: Takashi OKAZOE, Tim GATZENMEIER, Kyoko NOZAKI
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Publication number: 20230406819Abstract: The present invention provides a production method capable of synthesizing an aryl thiol ester compound under mild conditions rapidly at a high yield. The present invention provides a method for producing an aryl thiol ester compound including producing an aryl thiol ester compound represented by the following general formula (1) from a diazonium compound represented by the following general formula (2) and a thioate compound represented by the following general formula (3) by a Sandmeyer-type coupling reaction using a catalyst, [wherein A1 and A2 are each independently an optionally substituted aryl group or an optionally substituted heteroaryl group; X1 is a monovalent anion; and M1 is a monovalent cation].Type: ApplicationFiled: August 31, 2023Publication date: December 21, 2023Applicants: AGC Inc., The University of TokyoInventors: Takashi OKAZOE, Tim GATZENMEIER, Kyoko NOZAKI
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Publication number: 20230373898Abstract: The objective of the present invention is to provide a method for producing a carbonyl halide efficiently to the used halogenated hydrocarbon. The method for producing a carbonyl halide according to the present invention is characterized in comprising the steps of preparing a mixed gas comprising oxygen and a C2-4 halogenated hydrocarbon having one or more halogeno groups selected from the group consisting of chloro, bromo and iodo, and flowing the mixed gas and irradiating a high energy light to the flowed mixed gas.Type: ApplicationFiled: August 4, 2023Publication date: November 23, 2023Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, AGC Inc.Inventors: Akihiko TSUDA, Takashi OKAZOE
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Publication number: 20230348279Abstract: The objective of the present invention is to provide a method for producing a carbonyl halide efficiently to the used halogenated methane. The method for producing a carbonyl halide according to the present invention is characterized in comprising the steps of preparing a mixed gas comprising oxygen and a halogenated methane having one or more halogeno groups selected from the group consisting of chloro, bromo and iodo, and flowing the mixed gas and irradiating a high energy light to the flowed mixed gas.Type: ApplicationFiled: July 11, 2023Publication date: November 2, 2023Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, AGC Inc., MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Akihiko TSUDA, Takashi OKAZOE, Hidefumi HARADA
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Publication number: 20230016405Abstract: A production method of producing a fluorine-containing olefin by allowing a first olefin represented by the following Formula (1) and a second olefin to react with each other in the presence of a ruthenium compound represented by the following Formula (X) is provided.Type: ApplicationFiled: August 19, 2022Publication date: January 19, 2023Applicants: THE UNIVERSITY OF TOKYO, AGC INC.Inventors: Kyoko NOZAKI, Midori AKIYAMA, Kenta MORI, Takashi OKAZOE, Yuichiro ISHIBASHI, Ko INADA
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Publication number: 20220235091Abstract: To provide a nucleic acid excellent in cell membrane permeability and a method for its production. A nucleic acid containing a C2-10 perfluoroalkyl group having from 1 to 5 ether-bonding oxygen atoms between carbon atoms; said nucleic acid wherein said perfluoroalkyl group is directly or indirectly bonded to the 5?- or 3?-end of the nucleic acid, or said perfluoroalkyl group is indirectly introduced between two nucleotides; or a nucleic acid medicine comprising, as an active ingredient, a nucleic acid containing a C2-10 perfluoroalkyl group, which may have from 1 to 5 ether-bonding oxygen atoms between carbon atoms.Type: ApplicationFiled: March 18, 2022Publication date: July 28, 2022Applicants: AGC Inc., THE UNIVERSITY OF TOKYOInventors: Takashi OKAZOE, Yuichiro ISHIBASHI, Akimitsu OKAMOTO, Kunihiko MORIHIRO, Kohsuke AIKAWA, Honoka WATANABE
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Publication number: 20220177411Abstract: A method for producing a nitrogen-containing fluorine-containing compound includes a step in which a compound represented by formula (5) is fluorinated to obtain a compound represented by formula (6). R3 is a single bond or a C1-20 divalent organic group. R4 and R5 are each independently a monovalent organic group having an electron-withdrawing group, a C1-20 monovalent hydrocarbon group, or a C2-20 monovalent hydrocarbon group which contains an etheric oxygen atom between carbon atoms. At least one of R4 and R5 is a monovalent organic group having an electron-withdrawing group. R3, R4, and R5 may be bonded to each other to form a divalent organic group or a trivalent organic group. R6 is a C1-20 monovalent organic group. E3 is a divalent organic group. R3F, R4F, R5F, R6F, and E3F are groups formed by fluorinating some or all of hydrogen atoms of R3, R4, R5, R6, and E3.Type: ApplicationFiled: February 18, 2022Publication date: June 9, 2022Applicant: AGC INC.Inventors: Takashi OKAZOE, Yuichiro Ishibashi
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Publication number: 20220119440Abstract: A peptide having a fluoroalkyl group as its side chain and a method for producing, which comprises condensing a compound represented by the formula (6-2) or (6-4), where means that an asymmetric carbon atom has an absolute configuration of S or R, Rf is a C1-30 alkyl group which is substituted with at least two fluorine atoms, and which may further be substituted with a halogen atom other than a fluorine atom (when the C1-30 alkyl group is a C2-30 alkyl group, it may have 1 to 5 etheric oxygen atoms between carbon atoms), and R2 is a protecting group for the amino group, with a fluorinated amino acid having its carboxy group protected, an amino acid having its carboxy group protected, a fluorinated peptide having its C-terminal protected, or a peptide having its C-terminal protected.Type: ApplicationFiled: December 30, 2021Publication date: April 21, 2022Applicants: AGC Inc., THE UNIVERSITY OF TOKYOInventors: Takashi OKAZOE, Yuichiro ISHIBASHI, Shinsuke SANDO, Jumpei MORIMOTO, Kohsuke AIKAWA, Toshiki MIKAMI, Takahiro ONO
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Publication number: 20220002234Abstract: The objective of the present invention is to provide a method for producing an isocyanate compound safely and efficiently. The method for producing an isocyanate compound according to the present invention is characterized in comprising the steps of irradiating a high energy light to a halogenated methane at a temperature of 15° C. or lower in the presence of oxygen, and further adding a primary amine compound to be reacted without irradiating a high energy light.Type: ApplicationFiled: November 14, 2019Publication date: January 6, 2022Applicants: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY, AGC Inc.Inventors: Akihiko TSUDA, Takashi OKAZOE
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Patent number: 9796655Abstract: The present invention relates to a production process capable of selectively producing various kinds of carbonate compounds without restraint in high yields without using toxic compounds such as phosgene and crown ethers, without producing corrosive gases such as hydrogen chloride as a by-product, and without necessity of removing the chloroform as a by-product by distillation, and to a method for producing a carbonate compound, containing reacting compound (1) with a compound having an OH group in the presence of a metal salt and 0.2 to 4.0 mol of compound (2) per mol of the metal salt to obtain a carbonate compound, in which m is an integer of 1-10, Q is an alkylene group having 1 to 4 carbon atoms, etc, and R10 and R11 are alkyl groups having 1 to 5 carbon atoms, etc.Type: GrantFiled: June 4, 2015Date of Patent: October 24, 2017Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Hidekazu Okamoto, Atsushi Fujimori, Takashi Okazoe
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Patent number: 9617379Abstract: The present invention relates to a method for producing a carbonate compound and methacrylic acid or an ester thereof, containing a step (a1) of obtaining hexachloroacetone and hydrogen chloride from acetone and chlorine molecule, a step (a2) of obtaining a dialkyl carbonate and chloroform from hexachloroacetone and an alkyl alcohol, a step (b1) of obtaining 1,1,1-trichloro-2-methyl-2-propanol from chloroform and acetone, a step (b2+b3 or b4) of obtaining methacrylic acid or an ester thereof and hydrogen chloride from 1,1,1-trichloro-2-methyl-2-propanol and water or an alcohol, and a step (c1 or c2) of obtaining chlorine molecule by reacting hydrogen chloride with oxygen molecule.Type: GrantFiled: August 11, 2016Date of Patent: April 11, 2017Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Takashi Okazoe, Masayuki Miyazaki, Kazuya Oharu, Tomoyuki Fujita, Shinji Wada, Koichi Murata, Naoko Shirota
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Publication number: 20160347905Abstract: The present invention relates to a method for producing a carbonate compound and methacrylic acid or an ester thereof, containing a step (a1) of obtaining hexachloroacetone and hydrogen chloride from acetone and chlorine molecule, a step (a2) of obtaining a dialkyl carbonate and chloroform from hexachloroacetone and an alkyl alcohol, a step (b1) of obtaining 1,1,1-trichloro-2-methyl-2-propanol from chloroform and acetone, a step (b2+b3 or b4) of obtaining methacrylic acid or an ester thereof and hydrogen chloride from 1,1,1-trichloro-2-methyl-2-propanol and water or an alcohol, and a step (c1 or c2) of obtaining chlorine molecule by reacting hydrogen chloride with oxygen molecule.Type: ApplicationFiled: August 11, 2016Publication date: December 1, 2016Applicant: Asahi Glass Company, LimitedInventors: Takashi OKAZOE, Masayuki MIYAZAKI, Kazuya OHARU, Tomoyuki FUJITA, Shinji WADA, Koichi MURATA, Naoko SHIROTA
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Patent number: 9447235Abstract: The present invention relates to a method of producing polycarbonate containing following step (a) and step (b), (a) a step of reacting a specific fluorine-containing carbonate (Compound (1), etc.) and an aromatic dihydroxy compound in the presence of a condensation catalyst, to obtain a prepolymer, and (b) a step of heating the prepolymer at a temperature which is lower than a melting temperature of the prepolymer and performing solid phase polymerization on the prepolymer while a fluorine-containing alcohol that is produced as a by-product is discharged out of a system, to obtain a polycarbonate.Type: GrantFiled: October 15, 2015Date of Patent: September 20, 2016Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Naoko Shirota, Takashi Okazoe, Kimiaki Kashiwagi
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Patent number: 9260383Abstract: The present invention relates to a method of producing a carbamate compound, comprising reacting a fluorine-containing carbonic diester compound represented by formula (1) and a non-aromatic diamine compound represented by formula (2) without using a catalyst, to thereby produce a carbamate compound represented by formula (3), and a method of producing an isocyanate compound represented by formula (20) from the carbamate compound without using a catalyst, wherein R represents a fluorine-containing monovalent aliphatic hydrocarbon group, and A represents a divalent aliphatic hydrocarbon group, a divalent alicyclic hydrocarbon group or a divalent aromatic-aliphatic hydrocarbon group.Type: GrantFiled: November 26, 2014Date of Patent: February 16, 2016Assignee: ASAHI GLASS COMPANY, LIMITEDInventors: Takashi Okazoe, Yuko Nagasaki, Hidekazu Okamoto
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Publication number: 20160032046Abstract: The present invention relates to a method of producing polycarbonate containing following step (a) and step (b), (a) a step of reacting a specific fluorine-containing carbonate (Compound (1), etc.) and an aromatic dihydroxy compound in the presence of a condensation catalyst, to obtain a prepolymer, and (b) a step of heating the prepolymer at a temperature which is lower than a melting temperature of the prepolymer and performing solid phase polymerization on the prepolymer while a fluorine-containing alcohol that is produced as a by-product is discharged out of a system, to obtain a polycarbonate.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Naoko SHIROTA, Takashi Okazoe, Kimiaki Kashiwagi