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).

  • Patent number: 11325933
    Abstract: 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: Grant
    Filed: March 30, 2018
    Date of Patent: May 10, 2022
    Assignee: Takasago International Corporation
    Inventor: Osamu Ogata
  • Publication number: 20200102336
    Abstract: 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: Application
    Filed: March 30, 2018
    Publication date: April 2, 2020
    Applicant: Takasago International Corporation
    Inventor: Osamu Ogata
  • Patent number: 10072033
    Abstract: 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: Grant
    Filed: August 26, 2015
    Date of Patent: September 11, 2018
    Assignee: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Yuji Nakayama, Osamu Ogata
  • Patent number: 10059729
    Abstract: 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: Grant
    Filed: April 24, 2015
    Date of Patent: August 28, 2018
    Assignee: Takasago International Corporation
    Inventors: Osamu Ogata, Hideki Nara, Yuji Nakayama
  • Patent number: 9751827
    Abstract: 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: Grant
    Filed: January 21, 2014
    Date of Patent: September 5, 2017
    Assignee: Takasago International Corporation
    Inventors: Osamu Ogata, Hideki Nara
  • Publication number: 20170233418
    Abstract: 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: Application
    Filed: August 26, 2015
    Publication date: August 17, 2017
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Yuji NAKAYAMA, Osamu OGATA
  • Publication number: 20170044196
    Abstract: 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: Application
    Filed: April 24, 2015
    Publication date: February 16, 2017
    Inventors: Osamu Ogata, Hideki Nara, Yuji Nakayama
  • Patent number: 9347617
    Abstract: 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: Grant
    Filed: June 29, 2011
    Date of Patent: May 24, 2016
    Assignee: TAIHEI DENGYO KAISHA, LTD.
    Inventors: Masahiro Aizawa, Osamu Ogata
  • Publication number: 20160009632
    Abstract: 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: Application
    Filed: January 21, 2014
    Publication date: January 14, 2016
    Inventors: Osamu Ogata, Hideki Nara
  • Patent number: 9117557
    Abstract: 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: Grant
    Filed: December 17, 2014
    Date of Patent: August 25, 2015
    Assignee: TAIHEI DENGYO KAISHA, LTD.
    Inventors: Masahiro Aizawa, Osamu Ogata
  • Patent number: 9099210
    Abstract: 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: Grant
    Filed: August 9, 2011
    Date of Patent: August 4, 2015
    Assignee: TAIHEI DENGYO KAISHA, LTD.
    Inventors: Masahiro Aizawa, Osamu Ogata
  • Patent number: 9012690
    Abstract: 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: Grant
    Filed: September 1, 2011
    Date of Patent: April 21, 2015
    Assignee: Takasago International Corporation
    Inventors: Osamu Ogata, Wataru Kuriyama, Takaji Matsumoto
  • Publication number: 20150101692
    Abstract: 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: Application
    Filed: December 17, 2014
    Publication date: April 16, 2015
    Applicant: TAIHEI DENGYO KAISHA, LTD.
    Inventors: Masahiro AIZAWA, Osamu OGATA
  • Patent number: 8846983
    Abstract: 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: Grant
    Filed: December 9, 2013
    Date of Patent: September 30, 2014
    Assignee: Takasago International Corporation
    Inventors: Kiyoto Hori, Osamu Ogata, Wataru Kuriyama
  • Publication number: 20140163257
    Abstract: 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: Application
    Filed: December 9, 2013
    Publication date: June 12, 2014
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Kiyoto HORI, Osamu OGATA, Wataru KURIYAMA
  • Publication number: 20130291972
    Abstract: 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: Application
    Filed: August 9, 2011
    Publication date: November 7, 2013
    Applicant: TAIHEI DENGYO KAISHA, LTD.
    Inventors: Masahiro Aizawa, Osamu Ogata
  • Patent number: 8524953
    Abstract: 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: Grant
    Filed: September 12, 2012
    Date of Patent: September 3, 2013
    Assignee: Takasago International Corporation
    Inventors: Wataru Kuriyama, Yasunori Ino, Osamu Ogata
  • Publication number: 20130172619
    Abstract: 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: Application
    Filed: September 1, 2011
    Publication date: July 4, 2013
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Osamu Ogata, Wataru Kuriyama, Takaji Matsumoto
  • Patent number: 8471048
    Abstract: 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: Grant
    Filed: June 30, 2010
    Date of Patent: June 25, 2013
    Assignee: Takasago International Corporation
    Inventors: Wataru Kuriyama, Takaji Matsumoto, Yasunori Ino, Osamu Ogata
  • Publication number: 20130098483
    Abstract: 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: Application
    Filed: June 29, 2011
    Publication date: April 25, 2013
    Applicant: TAIHEI DENGYO KAISHA, LTD.
    Inventors: Masahiro Aizawa, Osamu Ogata