Patents by Inventor Shiro Tsubokura

Shiro Tsubokura 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: 10717705
    Abstract: A method for efficiently removing impurities such as sodium ions, fluoride ions, chloride ions and fluorosulfate ions without reducing the yield of a target product, including a fluorine-containing sulfonylamide compound selected from the group consisting of fluorine-containing sulfonylamide, a metal salt thereof, an ammonium salt thereof and a quaternary ammonium salt thereof is washed with an aqueous solution of salt of sulfuric acid.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 21, 2020
    Assignee: NIPPON SODA CO., LTD.
    Inventors: Shiro Tsubokura, Yuka Aomori, Satoshi Kako
  • Publication number: 20190233368
    Abstract: A method for efficiently removing impurities such as sodium ions, fluoride ions, chloride ions and fluorosulfate ions without reducing the yield of a target product, including a fluorine-containing sulfonylamide compound selected from the group consisting of fluorine-containing sulfonylamide, a metal salt thereof, an ammonium salt thereof and a quaternary ammonium salt thereof is washed with an aqueous solution of salt of sulfuric acid.
    Type: Application
    Filed: August 1, 2017
    Publication date: August 1, 2019
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Shiro TSUBOKURA, Yuka AOMORI, Satoshi KAKO
  • Patent number: 10214419
    Abstract: Granules or powders consisting of a compound of formula [I], in which a modal diameter is 80 ?m or less, a median diameter is 45 ?m or less, and/or, a ratio of (modal diameter)/(median diameter) is 1.7 or less, are preferably used for an electrolyte or the like. In formula [I], R1 and R2 each independently represents a fluoroalkyl group having 1 to 6 carbon atoms, or a fluorine atom, and Y+ represents an alkali metal cation or an ammonium cation.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 26, 2019
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Shiro Tsubokura, Yasuyuki Aiura
  • Publication number: 20160289074
    Abstract: Granules or powders consisting of a compound of formula [I], in which a modal diameter is 80 ?m or less, a median diameter is 45 ?m or less, and/or, a ratio of (modal diameter)/(median diameter) is 1.7 or less, are preferably used for an electrolyte or the like. In formula [I], R1 and R2 each independently represents a fluoroalkyl group having 1 to 6 carbon atoms, or a fluorine atom, and Y+ represents an alkali metal cation or an ammonium cation.
    Type: Application
    Filed: October 31, 2014
    Publication date: October 6, 2016
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Shiro Tsubokura, Yasuyuki AIURA
  • Publication number: 20160145242
    Abstract: A medicinal active ingredient is provided which is useful for the treatment or prevention of inflammatory diseases, diseases caused by lipid oxidation, retinochoroidal disorders. A phenylimidazole derivative represented by Formula (IB) or a salt thereof is provided. A therapeutic medicine or preventive medicine is provided for inflammatory diseases, diseases caused by lipid oxidation, or retinochoroidal disorders, the medicine including at least one selected from the phenylimidazole derivative, a salt thereof, and metabolites thereof as an active ingredient. In Formula (IB), R1a represents an alkyl group etc., R2 represents an amino group etc., R3 represents a halogen atom, an alkyl group etc., R4 represents a cyano group etc., R5 represents an alkyl group etc., and R6 represents an alkyl group etc.
    Type: Application
    Filed: June 26, 2014
    Publication date: May 26, 2016
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Nobuhiro UMEDA, Shiro TSUBOKURA, Seiichi UCHIDA, Keiji KOIZUMI, Hiroko MOROE, Ichiro OHSHIO
  • Patent number: 9242862
    Abstract: A compound [I] such as ammonium N-(chlorosulfonyl)-N-(fluorosulfonyl)imide is reacted with hydrogen fluoride to obtain a compound [II] such as ammonium N,N-di(fluorosulfonyl)imide. The obtained compound [II] is reacted with an alkali metal compound or the like to obtain a compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: January 26, 2016
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Shiro Tsubokura, Michiaki Maruyama
  • Patent number: 9233849
    Abstract: By reacting a fluorine-containing sulfonylimide ammonium salt such as ammonium N,N-di(fluorosulfonyl)imide with an alkali metal hydroxide such as lithium hydroxide, potassium hydroxide or sodium hydroxide under reduced pressure and at a low temperature of approximately 40° C., a fluorine-containing sulfonylimide alkali metal salt such as lithium N,N-di(fluorosulfonyl)imide, potassium N,N-di(fluorosulfonyl)imide or sodium N,N-di(fluorosulfonyl)imide is obtained.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: January 12, 2016
    Assignee: NIPPON SODA CO., LTD.
    Inventors: Shiro Tsubokura, Toru Suzuki, Michiaki Maruyama, Yasuyuki Aiura
  • Patent number: 9096502
    Abstract: A compound [II] such as ammonium N,N-di(fluorosulfonyl)imide is obtained by reacting a compound [I] such as N,N-di(chlorosulfonyl)imide and NH4F (HF)p. A compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt is obtained by reacting the obtained compound [II] and an alkali metal compound or the like.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: August 4, 2015
    Assignee: NIPPON SODA CO., LTD.
    Inventors: Shiro Tsubokura, Yasuyuki Aiura, Toru Suzuki, Michiaki Maruyama
  • Patent number: 9018385
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: April 28, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Patent number: 9012653
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: April 21, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Patent number: 9000178
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: April 7, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Patent number: 8981107
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 17, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
  • Patent number: 8962848
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: February 24, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Patent number: 8962849
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.).
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: February 24, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
  • Patent number: 8962850
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: February 24, 2015
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
  • Patent number: 8841458
    Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: September 23, 2014
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
  • Patent number: 8809544
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 19, 2014
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
  • Publication number: 20140194629
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Application
    Filed: February 7, 2014
    Publication date: July 10, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Koichi KUTOSE, Hiroki INOUE, Shiro TSUBOKURA
  • Publication number: 20140171651
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 19, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Koichi KUTOSE, Hiroki INOUE, Shiro TSUBOKURA
  • Publication number: 20140163235
    Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 12, 2014
    Applicant: Nippon Soda Co., Ltd.
    Inventors: Koichi KUTOSE, Hiroki INOUE, Shiro TSUBOKURA