Patents by Inventor Osamu Ogata
Osamu Ogata 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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Patent number: 11325933Abstract: The present invention provides a novel cationic ruthenium complex which is easy to produce and handle and can be procured at a relatively low cost and a production method for the ruthenium complex, a method for producing an alcohol or the like using the ruthenium complex as a catalyst, a method for producing a carbonyl compound using the ruthenium complex as a catalyst, and a method for producing a N-alkylamine compound using the ruthenium complex as a catalyst. The present invention pertains to a ruthenium complex represented by general formula (1): [RuX(CO)2(PNP)]Y (wherein, X represents a monovalent anionic monodentate ligand, Y represents a counter anion, PNP represents a tridentate ligand, and CO represents carbon monoxide), a production method for the ruthenium complex, a catalyst containing the ruthenium complex, and a production method for various organic compounds using the catalyst.Type: GrantFiled: March 30, 2018Date of Patent: May 10, 2022Assignee: Takasago International CorporationInventor: Osamu Ogata
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Publication number: 20200102336Abstract: The present invention provides a novel cationic ruthenium complex which is easy to produce and handle and can be procured at a relatively low cost and a production method for the ruthenium complex, a method for producing an alcohol or the like using the ruthenium complex as a catalyst, a method for producing a carbonyl compound using the ruthenium complex as a catalyst, and a method for producing a N-alkylamine compound using the ruthenium complex as a catalyst. The present invention pertains to a ruthenium complex represented by general formula (1): [RuX(CO)2(PNP)]Y (wherein, X represents a monovalent anionic monodentate ligand, Y represents a counter anion, PNP represents a tridentate ligand, and CO represents carbon monoxide), a production method for the ruthenium complex, a catalyst containing the ruthenium complex, and a production method for various organic compounds using the catalyst.Type: ApplicationFiled: March 30, 2018Publication date: April 2, 2020Applicant: Takasago International CorporationInventor: Osamu Ogata
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Patent number: 10072033Abstract: The purpose of the present invention is to provide: a ligand that is useful in a catalytic organic synthetic reaction; a method for producing said ligand; and a metal complex that is useful as a catalyst in an organic synthetic reaction. The present invention provides a compound represented by general formula (1A), a method for producing said compound, and a metal complex including said compound as a ligand. (In the formula, H, N, P, S, L, R1, R2, R3, Q1, and Q2 have the meaning as defined in the Description.Type: GrantFiled: August 26, 2015Date of Patent: September 11, 2018Assignee: TAKASAGO INTERNATIONAL CORPORATIONInventors: Yuji Nakayama, Osamu Ogata
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Patent number: 10059729Abstract: The present invention provides a novel ruthenium complex that is easy to produce and handle and that can be supplied relatively inexpensively, a method for producing this ruthenium complex, a method for producing alcohols and the like using this ruthenium complex as a catalyst, a method for producing carbonyl compounds using this ruthenium complex as a catalyst, and a method for producing N-alkylamine compounds using this ruthenium complex as a catalyst. The present invention pertains to a ruthenium complex represented by general formula (1) RuX1X2(PNP) (NHC)m(Solv)n(1) (in general formula (1), X1 and X2 each independently represent a monovalent anionic monodentate ligand; PNP represents a tridentate aminodiphosphine ligand, NHC represents an N-heterocyclic carbene derived from a nitrogen-containing heterocyclic ring, and Solv represents a coordinating solvent; and m represents an integer from 1 to 3, n represents an integer from 0 to 2, and 1?m+n?3.Type: GrantFiled: April 24, 2015Date of Patent: August 28, 2018Assignee: Takasago International CorporationInventors: Osamu Ogata, Hideki Nara, Yuji Nakayama
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Patent number: 9751827Abstract: The present invention provides a simple, efficient, and industrially advantageous method for the alkylation of amines. The present invention relates to a production method for N-alkylamines whereby an amine is reacted with an alcohol in the presence of a ruthenium complex represented by general formula (1): RuXY(CO)(L) (wherein X and Y can be the same or different and represent a monovalent anionic ligand, and L represents a tridentate aminodiphosphine ligand).Type: GrantFiled: January 21, 2014Date of Patent: September 5, 2017Assignee: Takasago International CorporationInventors: Osamu Ogata, Hideki Nara
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Publication number: 20170233418Abstract: The purpose of the present invention is to provide: a ligand that is useful in a catalytic organic synthetic reaction; a method for producing said ligand; and a metal complex that is useful as a catalyst in an organic synthetic reaction. The present invention provides a compound represented by general formula (1A), a method for producing said compound, and a metal complex including said compound as a ligand. (In the formula, H, N, P, S, L, R1, R2, R3, Q1, and Q2 have the meaning as defined in the Description.Type: ApplicationFiled: August 26, 2015Publication date: August 17, 2017Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Yuji NAKAYAMA, Osamu OGATA
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Publication number: 20170044196Abstract: The present invention provides a novel ruthenium complex that is easy to produce and handle and that can be supplied relatively inexpensively, a method for producing this ruthenium complex, a method for producing alcohols and the like using this ruthenium complex as a catalyst, a method for producing carbonyl compounds using this ruthenium complex as a catalyst, and a method for producing N-alkylamine compounds using this ruthenium complex as a catalyst. The present invention pertains to a ruthenium complex represented by general formula (1) RuX1X2(PNP) (NHC)m(Solv)n(1) (in general formula (1), X1 and X2 each independently represent a monovalent anionic monodentate ligand; PNP represents a tridentate aminodiphosphine ligand, NHC represents an N-heterocyclic carbene derived from a nitrogen-containing heterocyclic ring, and Solv represents a coordinating solvent; and m represents an integer from 1 to 3, n represents an integer from 0 to 2, and 1?m+n?3.Type: ApplicationFiled: April 24, 2015Publication date: February 16, 2017Inventors: Osamu Ogata, Hideki Nara, Yuji Nakayama
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Patent number: 9347617Abstract: There is provided a residual radioactive sludge liquid suction apparatus capable of safely and surely sucking radioactive sludge liquid remaining in a sludge storage tank with no fear of being exposed to radiation at a time when a small amount of sludge liquid remaining in the sludge storage tank is transferred to another tank.Type: GrantFiled: June 29, 2011Date of Patent: May 24, 2016Assignee: TAIHEI DENGYO KAISHA, LTD.Inventors: Masahiro Aizawa, Osamu Ogata
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Publication number: 20160009632Abstract: The present invention provides a simple, efficient, and industrially advantageous method for the alkylation of amines. The present invention relates to a production method for N-alkylamines whereby an amine is reacted with an alcohol in the presence of a ruthenium complex represented by general formula (1): RuXY(CO)(L) (wherein X and Y can be the same or different and represent a monovalent anionic ligand, and L represents a tridentate aminodiphosphine ligand).Type: ApplicationFiled: January 21, 2014Publication date: January 14, 2016Inventors: Osamu Ogata, Hideki Nara
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Patent number: 9117557Abstract: Provided is a radioactive sludge transfer apparatus for transferring sludge stored in a sludge storage tank with supernatant solution to a transfer tank including: a transfer body; a stirring apparatus for blasting the supernatant solution to the sludge; a sludge solution transferer for transferring the sludge solution to the transfer tank; an attitude control float; a floating force control ballast tank; and controller for remotely controlling the stifling apparatus, the sludge solution transferer and the floating force control ballast tank.Type: GrantFiled: December 17, 2014Date of Patent: August 25, 2015Assignee: TAIHEI DENGYO KAISHA, LTD.Inventors: Masahiro Aizawa, Osamu Ogata
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Patent number: 9099210Abstract: There is provided a radioactive sludge transfer apparatus for transferring sludge stored in a sludge storage tank with supernatant solution to a transfer tank including: a transfer apparatus body; a stifling apparatus for blasting the supernatant solution to the sludge to thereby produce sludge solution in the one tank; sludge solution transfer apparatus for transferring the sludge solution to the transfer tank; an attitude control float; a floating force control ballast tank; and control device for remotely controlling the stifling apparatus, the sludge solution transfer apparatus and the floating force control ballast tank.Type: GrantFiled: August 9, 2011Date of Patent: August 4, 2015Assignee: TAIHEI DENGYO KAISHA, LTD.Inventors: Masahiro Aizawa, Osamu Ogata
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Patent number: 9012690Abstract: Disclosed herein is a method for producing an alcohol and an amine from an amide under an atmosphere of hydrogen with the use of, as a catalyst, a ruthenium complex that is easily prepared, easy to handle, and relatively cheaply obtained. Specifically, the method is a method for producing an alcohol and/or an amine from an amide compound under an atmosphere of hydrogen with the use of as a catalyst, a ruthenium carbonyl complex represented by the following general formula (1): RuXY(CO)(L) (1) wherein X and Y may be the same or different from each other and each represents an anionic ligand and L represents a tridentate aminodiphosphine ligand containing two phosphino groups and a —NH— group.Type: GrantFiled: September 1, 2011Date of Patent: April 21, 2015Assignee: Takasago International CorporationInventors: Osamu Ogata, Wataru Kuriyama, Takaji Matsumoto
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Publication number: 20150101692Abstract: There is provided a radioactive sludge transfer apparatus for safely and surely transferring radioactive sludge contaminated by radioactive substance stored in a sludge storage tank to a transfer tank for the sake of tank inspection.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Applicant: TAIHEI DENGYO KAISHA, LTD.Inventors: Masahiro AIZAWA, Osamu OGATA
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Patent number: 8846983Abstract: An object of the present invention is to provide a method for reducing a halogenobenzoic acid ester, in which dehalogenation is inhibited, by using a readily available catalyst. The method comprises reducing an ester with hydrogen gas by using an aromatic hydrocarbon as a solvent in the presence of a ruthenium complex represented by the following general formula (1): RuXY(CO)(L)??(1) where X and Y represent monovalent anionic ligands, and L represents a tridentate aminodiphosphine ligand represented by the following general formula (2): where RZ1 represents an alkyl group having 1 to 4 carbon atoms, each RZ2 represents an alkyl group having 1 to 4 carbon atoms or a halogen atom, any adjacent two RZ2s may form a ring, Hal represents a halogen atom, and n represents 0 to 4.Type: GrantFiled: December 9, 2013Date of Patent: September 30, 2014Assignee: Takasago International CorporationInventors: Kiyoto Hori, Osamu Ogata, Wataru Kuriyama
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Publication number: 20140163257Abstract: An object of the present invention is to provide a method for reducing a halogenobenzoic acid ester, in which dehalogenation is inhibited, by using a readily available catalyst. The method comprises reducing an ester with hydrogen gas by using an aromatic hydrocarbon as a solvent in the presence of a ruthenium complex represented by the following general formula (1): RuXY(CO)(L)??(1) where X and Y represent monovalent anionic ligands, and L represents a tridentate aminodiphosphine ligand represented by the following general formula (2): where RZ1 represents an alkyl group having 1 to 4 carbon atoms, each RZ2 represents an alkyl group having 1 to 4 carbon atoms or a halogen atom, any adjacent two RZ2s may form a ring, Hal represents a halogen atom, and n represents 0 to 4.Type: ApplicationFiled: December 9, 2013Publication date: June 12, 2014Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Kiyoto HORI, Osamu OGATA, Wataru KURIYAMA
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Publication number: 20130291972Abstract: There is provided a radioactive sludge transfer apparatus for safely and surely transferring radioactive sludge contaminated by radioactive substance stored in a sludge storage tank to a transfer tank for the sake of tank inspection.Type: ApplicationFiled: August 9, 2011Publication date: November 7, 2013Applicant: TAIHEI DENGYO KAISHA, LTD.Inventors: Masahiro Aizawa, Osamu Ogata
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Patent number: 8524953Abstract: Provided is an alcohol production method comprising the step of reducing an ester or a lactone with hydrogen to produce a corresponding alcohol without addition of a base compound by using, as a catalyst, a ruthenium complex represented by the following general formula (1): RuH(X)(L1)(L2)n??(1) wherein X represents a monovalent anionic ligand, L1 represents a tetradentate ligand having at least one coordinating phosphino group and at least one coordinating amino group or a bidentate aminophosphine ligand having one coordinating phosphino group and one coordinating amino group, and L2 represents a bidentate aminophosphine ligand having one coordinating phosphino group and one coordinating amino group, provided that n is 0 when L1 is the tetradentate ligand, and n is 1 when L1 is the bidentate aminophosphine ligand.Type: GrantFiled: September 12, 2012Date of Patent: September 3, 2013Assignee: Takasago International CorporationInventors: Wataru Kuriyama, Yasunori Ino, Osamu Ogata
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Publication number: 20130172619Abstract: Disclosed herein is a method for producing an alcohol and an amine from an amide under an atmosphere of hydrogen with the use of, as a catalyst, a ruthenium complex that is easily prepared, easy to handle, and relatively cheaply obtained. Specifically, the method is a method for producing an alcohol and/or an amine from an amide compound under an atmosphere of hydrogen with the use of as a catalyst, a ruthenium carbonyl complex represented by the following general formula (1): RuXY(CO)(L) (1) wherein X and Y may be the same or different from each other and each represents an anionic ligand and L represents a tridentate aminodiphosphine ligand containing two phosphino groups and a —NH— group.Type: ApplicationFiled: September 1, 2011Publication date: July 4, 2013Applicant: TAKASAGO INTERNATIONAL CORPORATIONInventors: Osamu Ogata, Wataru Kuriyama, Takaji Matsumoto
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Patent number: 8471048Abstract: The present invention relates to a ruthenium carbonyl complex that is represented by the following Formula (1): RuXY(CO)(L)??(1) (in the Formula (1), X and Y, which may be the same or different from each other, represent an anionic ligand and L represents a tridentate aminodiphosphine ligand which has two phosphino groups and a —NH— group), its production method, and a method for production of alcohols by hydrogenation-reduction of ketones, esters, and lactones using the complex as a catalyst. The ruthenium carbonyl complex of the invention has a high catalytic activity and it can be easily prepared and handled.Type: GrantFiled: June 30, 2010Date of Patent: June 25, 2013Assignee: Takasago International CorporationInventors: Wataru Kuriyama, Takaji Matsumoto, Yasunori Ino, Osamu Ogata
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Publication number: 20130098483Abstract: There is provided a residual radioactive sludge liquid suction apparatus capable of safely and surely sucking radioactive sludge liquid remaining in a sludge storage tank with no fear of being exposed to radiation at a time when a small amount of sludge liquid remaining in the sludge storage tank is transferred to another tank.Type: ApplicationFiled: June 29, 2011Publication date: April 25, 2013Applicant: TAIHEI DENGYO KAISHA, LTD.Inventors: Masahiro Aizawa, Osamu Ogata